1: Tube DIY Asylum, RE: Looking for recommendations on Pots (0.00)
Posted by RPMac on 2024-07-21, 06:34:16 (104.28.97.20)
One of the most audible differences I've heard in my system was going from wiper type to ladder-step volume control. (Neither high-end) Another option is controlling volume in digital domain (dependin .......

2: Tubes Asylum, RE: Listening to music through tubes is like . . . (0.00)
Posted by RPMac on 2023-11-27, 16:53:04 (162.193.56.248)
Until you have listened to an all Direct Heated Triode Single Ended Triode system with speakers that will fill your room with music with less than one watt, you haven't fully evaluated tubes. Save the .......

3: Tube DIY Asylum, RE: Tre, do you implement and 'heroic' regulation with the filament as that seems to yield marked improvement~nT (0.00)
Posted by RPMac on 2023-11-05, 09:44:13 (162.193.56.248)
Thanks, that's what I needed to know .......

4: Tube DIY Asylum, RE: Tre, do you implement and 'heroic' regulation with the filament as that seems to yield marked improvement~nT (0.00)
Posted by RPMac on 2023-11-05, 05:52:28 (162.193.56.248)
A question to see if I understand this. My tube amp has 100k input (100k from grid to ground). If I series a .01uF cap on the input, it will start roll off at 150Hz? .......

5: Tube DIY Asylum, RE: Tre, do you implement and 'heroic' regulation with the filament as that seems to yield marked improvement~nT (0.00)
Posted by RPMac on 2023-11-01, 16:46:35 (162.193.56.248)
Is that paper on Voltsecond's site? What is the title? .......

6: Tube DIY Asylum, Thanks nt (0.00)
Posted by RPMac on 2023-11-01, 04:59:05 (162.193.56.248)
. .......

7: Tube DIY Asylum, RE: Tre, do you implement and 'heroic' regulation with the filament as that seems to yield marked improvement~nT (0.00)
Posted by RPMac on 2023-10-31, 07:38:20 (162.193.56.248)
I was about to ask how the below 200Hz are kept out of the main amp. .......

8: Tube DIY Asylum, RE: ? about K&K CCS implementation... (0.00)
Posted by RPMac on 2023-10-29, 08:08:55 (162.193.56.248)
I have C4S plate loads and filament biases on my Pre and driver stage DHTs. Power stage is parafeed 2A3. Sounds good to me. .......

9: SET Asylum, RE: SET'ers...we are a splinter group... in a splinter corner.... (0.00)
Posted by RPMac on 2023-08-17, 05:44:51 (162.193.56.248)
The problem with SET's is that they don't play loud enough for most people unless with the right speakers and even then, most want louder. .......

10: High Efficiency Speaker Asylum, RE: OB is very much a fringe niche. (0.00)
Posted by RPMac on 2023-07-10, 06:58:50 (192.231.71.56)
Maybe a H-frame? .......

11: High Efficiency Speaker Asylum, RE: +1 (0.00)
Posted by RPMac on 2023-05-16, 04:17:21 (162.193.56.248)
Nt .......

12: Tubes Asylum, RE: 300b break in (Takatsui) newbie question (0.00)
Posted by RPMac on 2023-01-28, 05:49:27 (172.77.77.178)
I would put the Takatsui 300B's in and listen for about a month. Then revisit your questions. .......

13: Tube DIY Asylum, RE: Yep (0.00)
Posted by RPMac on 2022-08-04, 18:25:44 (45.20.190.131)
I replaced a 100K pot with a ladder type stepped...-big improvement. Measured very close to 100K at each step and very close to each channel. Check out a DACT .......

14: High Efficiency Speaker Asylum, RE: Quarter-wave.com nt (0.00)
Posted by RPMac on 2022-08-04, 11:58:23 (45.20.190.131)
nt .......

15: High Efficiency Speaker Asylum, RE: Do you recognize the preamp on the floor? (0.00)
Posted by RPMac on 2022-08-03, 17:30:25 (45.20.190.131)
About the smallest possible...- 16W 20H 10Deep 3/4" plywood .......

16: Tube DIY Asylum, RE: There's the Khozmo with remote for $379 (0.00)
Posted by RPMac on 2022-06-03, 05:46:48 (45.20.190.131)
I replaced the wiper pot in my preamp with a ladder step...-big improvement. .......

17: High Efficiency Speaker Asylum, RE: 3 ways loadspeaker with Altec 414a (0.00)
Posted by RPMac on 2021-12-20, 06:19:57 (45.20.190.131)
I am using the 414z full range open baffle with help on top and bottom. .......

18: High Efficiency Speaker Asylum, RE: 3 ways loadspeaker with Altec 414a (0.00)
Posted by RPMac on 2021-12-19, 07:30:50 (172.77.65.45)
I use 414z(same as your 414a) wired straight to 2a3 SET with 807/32c horn crossed in at about 2750 hz with a single cap(Joe Roberts style). The bottom will be SS bi-amped 416(actually 605b) in H-frame .......

19: SET Asylum, RE: The best preamp is no preamp (0.00)
Posted by RPMac on 2021-12-15, 16:22:38 (45.20.190.131)
Three stages makes all DHT easier. To some, all DHT is better. .......

20: Tube DIY Asylum, RE: No (0.00)
Posted by RPMac on 2021-12-11, 12:29:30 (45.20.190.131)
You are going to have to help me understand this...- If your 300b amp has a gain of 4 and your SS amp has a gain of 8, wouldn't the same increase in input voltage to both amps result in twice the outp .......

21: Tube DIY Asylum, RE: So the Crown input sensitivity is pretty low (0.00)
Posted by RPMac on 2021-12-09, 05:55:03 (45.20.190.131)
If the two amps in a bi-amp system have different gain, isn't matching them a moving target? .......

22: Tube DIY Asylum, RE: I've been using a separate power supply for 12 years! (0.00)
Posted by RPMac on 2021-12-07, 05:10:51 (45.20.190.131)
How do you connect driver signal to output stage? .......

23: Tubes Asylum, RE: Philco 45 Tube-Not identical top (0.00)
Posted by RPMac on 2021-11-30, 17:21:32 (45.20.190.131)
If you are using them in a SET amp, I wouldn't worry about it. If you are using them in a PP amp, you need a SET. .......

24: Tubes Asylum, RE: 300b amps (0.00)
Posted by RPMac on 2021-11-29, 05:18:54 (45.20.190.131)
I have an all DHT amp and "better" amps with IDHT drivers...-I listen to the all DHT. Try finding schematics of all DHT SET amps. .......

25: Tube DIY Asylum, RE: Any insight into how the Jolida Black Ice "dimensionality" circuit works? (0.00)
Posted by RPMac on 2021-10-15, 07:39:27 (45.20.190.131)
I thought the two amps would sound more similar than they do. Wondering what's the reason for the difference. Thanks for the reply .......

26: Tube DIY Asylum, RE: Any insight into how the Jolida Black Ice "dimensionality" circuit works? (0.00)
Posted by RPMac on 2021-10-14, 17:14:51 (45.20.190.131)
I bought a Stereomour from Doc that has a 3B7 driver. I think Paul B. built it while y'all were doing R/D work on the Stereomour II. It has a wide, deep sound stage with lots of detail and instrument .......

27: Tube DIY Asylum, RE: err, I have never heard a trade show sound system that sounded as good as mine... furthermore the wire has (0.00)
Posted by RPMac on 2021-09-18, 06:41:16 (45.20.190.131)
Ideally, musician/environment and speaker/room should sound as close to the same as possible. How often does that happen? Lots of things in between to "color" the sound. .......

28: Tube DIY Asylum, RE: just cross out 'machine gun'... (0.00)
Posted by RPMac on 2021-09-11, 05:23:49 (172.77.70.57)
Doesn't everyone/everything from the musician/place recorded to the speaker/room play back have a "sound"? So, how do you determine the "correct sound". .......

29: SET Asylum, Well said. nt (0.00)
Posted by RPMac on 2021-09-02, 05:16:08 (45.20.190.131)
. .......

30: Tube DIY Asylum, RE: picture of Dennis' amp (0.00)
Posted by RPMac on 2021-08-29, 17:20:23 (45.20.190.131)
I got a college degree in my profession and it took me over two years to learn to respect those less educated, but with many years of experience. The most successful man I knew only had an eighth grad .......

31: Tube DIY Asylum, RE: Bad websites are at epidemic levels (0.00)
Posted by RPMac on 2021-06-23, 05:43:00 (45.20.190.131)
As a user, that is great advice. .......

32: Tube DIY Asylum, RE: It's a spectrum (0.00)
Posted by RPMac on 2021-06-08, 17:28:43 (45.20.190.131)
Agree, thanks .......

33: Tube DIY Asylum, RE: buy the best ... (0.00)
Posted by RPMac on 2021-06-08, 17:25:03 (45.20.190.131)
I'm very satisfied with what I'm listening to. Similar to Dennis in being 2A3 SET and Altec, but all DHT. .......

34: Tube DIY Asylum, RE: It's a spectrum (0.00)
Posted by RPMac on 2021-06-08, 17:17:02 (45.20.190.131)
I guess I don't. Please explain. My point was, for most if not all of us, it comes down to listening to reproduced music in our home. .......

35: Tube DIY Asylum, RE: It sounds better (0.00)
Posted by RPMac on 2021-06-07, 18:59:33 (45.20.190.131)
"This is a listening hobby..."even for the technicals .......

36: Tube DIY Asylum, RE: But my expectation was that the first amp was going to sound great... (0.00)
Posted by RPMac on 2021-06-02, 05:59:34 (45.20.190.131)
I had the same experience when I built my new Bottlehead BeePre preamp. I ran it on the bench long enough to do a voltage check...everything was spot on. I replaced another Bottlehead preamp with the .......

37: SET Asylum, RE: TAL - Jeff Korneff 45 Clone Mono Amplifers Review ....... (0.00)
Posted by RPMac on 2021-05-12, 16:57:22 (45.20.190.131)
About 2000, I was looking to get into SET and had narrowed down to Welborne and Bottlehead....I went Bottlehead. As you know, both are SS rectified. What do you think tube rectification brings to the .......

38: SET Asylum, RE: Thanks a lot nt (0.00)
Posted by RPMac on 2021-03-29, 05:00:20 (45.20.190.131)
T .......

39: SET Asylum, RE: Well, if your preamp don't mind... (0.00)
Posted by RPMac on 2021-03-28, 15:32:47 (45.20.190.131)
Can't you get a capacitor close to crossover FQ and fine tune with the grid resistor value? Wouldn't it be cheaper to swap out resistors than caps? What formula do you use to calculate crossover FQ? W .......

40: SET Asylum, RE: Nice speech Dennis but (0.00)
Posted by RPMac on 2021-03-10, 18:40:52 (45.20.190.131)
I know .......

41: SET Asylum, RE: Nice speech Dennis but (0.00)
Posted by RPMac on 2021-03-10, 16:45:36 (45.20.190.131)
I haven't had anything with tone controls for over 20 years. But there is something different about all DHT that keeps me going back to it. .......

42: SET Asylum, RE: Nice speech Dennis but (0.00)
Posted by RPMac on 2021-03-10, 16:36:51 (45.20.190.131)
Even if you have the perfect "wire with gain" amplifier, you will have "someone else's ear" before and after that will add 'color'. Speaker and room probably trump all other coloring. I like Dennis's .......

43: SET Asylum, RE: Nice speech Dennis but (0.00)
Posted by RPMac on 2021-03-10, 16:23:31 (45.20.190.131)
According to my RTA, my high frequency falls off about the same as my hearing...somewhere around 12K. .......

44: SET Asylum, RE: Nice speech Dennis but (0.00)
Posted by RPMac on 2021-03-10, 06:11:08 (45.20.190.131)
If linear response is paramount, why does most commercial equipment have tone controls? .......

45: High Efficiency Speaker Asylum, RE: T/S for Radio Shack 40-1286 (0.00)
Posted by RPMac on 2021-03-06, 05:07:49 (172.77.79.241)
I don't think my Altecs spec as good for OB, but I like what they are able to do. Been over 10 years since I've used a resonator box. .......

46: High Efficiency Speaker Asylum, RE: cool. heh -- I'd try 'em on an open baffle (FWIW) :) (0.00)
Posted by RPMac on 2021-03-05, 12:41:42 (45.20.190.131)
When in doubt, go OB. .......

47: High Efficiency Speaker Asylum, RE: Would Parts Express .67 cu size sub cabinet would work with Realistic 8 inch full range speaker? (0.00)
Posted by RPMac on 2021-03-05, 05:38:26 (45.20.190.131)
Try it. If you like it, it works. .......

48: High Efficiency Speaker Asylum, RE: I thought LP was Long Play vinyl.... NT (0.00)
Posted by RPMac on 2021-01-25, 13:58:04 (45.20.190.131)
Using acronyms is lazy and lacks communication...BWTFDIK .......

49: SET Asylum, RE: Last night I measured My lowest Hum level ... Wasn't that hard ,,,, (0.00)
Posted by RPMac on 2020-11-23, 04:35:54 (45.20.190.131)
Ver. 6.0 your latest? .......

50: SET Asylum, Found it, thanks. Nt (0.00)
Posted by RPMac on 2020-11-23, 04:18:11 (45.20.190.131)
Nt .......

51: SET Asylum, RE: Last night I measured My lowest Hum level ... Wasn't that hard ,,,, (0.00)
Posted by RPMac on 2020-11-17, 05:24:29 (45.20.190.131)
Interested in the Humbucking effect. Would like to see your schematic, but understand if you don't want to post it here. .......

52: High Efficiency Speaker Asylum, RE: Speaker Recommendations for low-power amps ? (0.00)
Posted by RPMac on 2020-11-17, 05:15:10 (45.20.190.131)
Neither of those are an option. Working on bass help for 414Z open baffle with a H-frame. .......

53: High Efficiency Speaker Asylum, RE: Speaker Recommendations for low-power amps ? (0.00)
Posted by RPMac on 2020-11-15, 12:01:53 (45.20.190.131)
There's a greater law in force here...WAF. I agree 100% with you, if I had my own room. .......

54: High Efficiency Speaker Asylum, RE: Speaker Recommendations for low-power amps ? (0.00)
Posted by RPMac on 2020-11-15, 05:33:48 (45.20.190.131)
Isn't it almost all a compromise once the song leaves the singer's mouth and the musician's instrument? I used that setup (with Heresys sitting on subs) for many years. Worked quite well....for a comp .......

55: High Efficiency Speaker Asylum, RE: Speaker Recommendations for low-power amps ? (0.00)
Posted by RPMac on 2020-11-13, 15:48:12 (45.20.190.131)
Use two subs as stands for the Heresy's...problem solved. .......

56: Tube DIY Asylum, RE: What makes a high quality plate choke? .... Better yet .... (0.00)
Posted by RPMac on 2020-10-27, 05:40:00 (45.20.190.131)
The end product and reason for this "hobby" is the enjoyment of the music. Who is better qualified to know if the reproduction of acoustical music from a system is real than a professional musician th .......

57: SET Asylum, Maybe Wardsweb and friends? nt (0.00)
Posted by RPMac on 2020-09-28, 05:10:42 (45.20.190.131)
Nt .......

58: Tube DIY Asylum, RE: Steve Bench dht ac filament hum reduction circuit (0.00)
Posted by RPMac on 2020-08-29, 12:41:37 (45.20.190.131)
Bottlehead Parabee and Altec 605B .......

59: Tube DIY Asylum, RE: Steve Bench dht ac filament hum reduction circuit (0.00)
Posted by RPMac on 2020-08-29, 06:19:55 (45.20.190.131)
I have a 300b amp with the Bench circuit (don't know if it's the circuit you show) that is very quiet. Sorry I can't help you more but to give you encouragement. .......

60: Tubes Asylum, RE: I'm rolling 2A3s................ (0.00)
Posted by RPMac on 2020-08-20, 17:02:48 (45.20.190.131)
Did Paul put in the soft start kit? That should have saved the Sophias. I converted mine to a "monkey" circuit with a plate choke in place of the CCS on top of the 6n1p. What driver did he use? ::: TO .......

61: Tube DIY Asylum, RE: Sorry Folks (0.00)
Posted by RPMac on 2020-07-27, 13:13:12 (45.20.190.131)
If that is how you think, I'm sure you believe you are right. .......

62: Tube DIY Asylum, RE: Sorry Folks (0.00)
Posted by RPMac on 2020-07-19, 07:16:18 (45.20.190.131)
I replaced my 1980s technology with 1920s technology. .......

63: Tube DIY Asylum, RE: Signal wire (0.00)
Posted by RPMac on 2020-03-03, 06:36:30 (45.20.190.131)
I understand the requirement for high quality components for aviation. My question is, if wire is wire , why is mil-spec wire silver plated copper? I have never heard an audible difference in wire, bu .......

64: High Efficiency Speaker Asylum, RE: Have you looked into Altec/GPA Duplexes or Tannoy Concentrics? (0.00)
Posted by RPMac on 2020-03-02, 08:23:31 (192.207.214.6)
Speaker baffle is 19"x19" 7.5" deep front and back .......

65: Tube DIY Asylum, RE: JE Labs Simple 45/2A3 hum issues (0.00)
Posted by RPMac on 2020-03-02, 05:10:17 (45.20.190.131)
Sounds like you had one defective humpot...have you checked it with a meter? I have read that for minimum hum, use the trans ct for cathode resistor and a humpot with cathode bypass cap to the wiper t .......

66: Tube DIY Asylum, RE: Signal wire (0.00)
Posted by RPMac on 2020-03-02, 04:58:11 (45.20.190.131)
Why is mil-spec wire different? .......

67: Tube DIY Asylum, RE:Thanks nt (0.00)
Posted by RPMac on 2020-03-02, 04:32:49 (45.20.190.131)
. .......

68: High Efficiency Speaker Asylum, RE: Have you looked into Altec/GPA Duplexes or Tannoy Concentrics? (0.00)
Posted by RPMac on 2020-03-01, 06:55:31 (45.20.190.131)
Reading about your 605As inspired me to buy a pair of 605Bs now in H-frames(a plus for bass). Also have 414Z/32C/902s in U-frames(best midrange I've heard). The biggest change in sound stage I've hear .......

69: Tube DIY Asylum, RE: caps (0.00)
Posted by RPMac on 2020-03-01, 06:24:31 (45.20.190.131)
How did they compare to Russian Teflon's? .......

70: High Efficiency Speaker Asylum, RE:That would be the right height for a speaker stand nt (0.00)
Posted by RPMac on 2020-02-19, 16:25:46 (45.20.190.131)
. .......

71: High Efficiency Speaker Asylum, RE: Should have said a 2A3 SET (0.00)
Posted by RPMac on 2020-02-19, 16:18:30 (45.20.190.131)
I guess all tube amps aren't the same. .......

72: High Efficiency Speaker Asylum, RE: spend some time with a 1970s pair of Heresys (0.00)
Posted by RPMac on 2020-02-19, 13:36:45 (45.20.190.131)
I own these speakers. The thing that had the biggest impact on making them long term listenable was tube amp and preamp. .......

73: SET Asylum, RE: Coupling Caps for a 300B SET (0.00)
Posted by RPMac on 2020-01-03, 05:46:43 (45.20.190.131)
FT-3 Teflon .......

74: Tube DIY Asylum, RE: safety question (0.00)
Posted by RPMac on 2020-01-03, 05:41:19 (45.20.190.131)
If you are going to work with lethal electricity, you need to have a meter AND know how to use it. If you don't have the confidence to bleed or measure a capacitor, maybe you should reconsider things. .......

75: High Efficiency Speaker Asylum, RE: Altec Lansing Model 19 (0.00)
Posted by RPMac on 2019-12-28, 07:10:02 (45.20.190.131)
I'm headed that way. First stop is 414 OB with 32/902 + sub. .......

76: High Efficiency Speaker Asylum, RE: Altec Model 19 foam (0.00)
Posted by RPMac on 2019-12-28, 07:03:11 (45.20.190.131)
Lynn Olson had on his site to use felt drawer liner to go around the horn mouth and back in toward the throat. I did this to the horns in my Heresy's and also the plumbers putty that Uncle Mike mentio .......

77: Tube DIY Asylum, The truth about climate (0.00)
Posted by RPMac on 2019-12-06, 13:31:39 (45.20.190.131)
Beyond human control .......

78: Tube DIY Asylum, RE: Ok Dennis, what ever (nt) (0.00)
Posted by RPMac on 2019-12-06, 07:36:39 (45.20.190.131)
Farming is the one job that everyone that is educated thinks they can do. .......

79: SET Asylum, RE: Why (0.00)
Posted by RPMac on 2019-08-03, 07:39:49 (45.20.190.131)
My understanding of audio electronics is limited which is why I read this forum to learn something which is why this thread is meaningless. .......

80: SET Asylum, Why (0.00)
Posted by RPMac on 2019-08-03, 06:49:51 (45.20.190.131)
What have you and your friends accomplished other than making much of this thread meaningless? .......

81: Tube DIY Asylum, RE: subjective here, why does an anode follower sound better than a cathode? ... (0.00)
Posted by RPMac on 2019-07-07, 06:54:21 (45.20.190.131)
Music is like food...it all has a "flavor" and that "flavor" isn't the same to all people. About half the concerts I've been to this past year have had terrible acoustics. What is to say that the soun .......

82: Tube DIY Asylum, RE: Don't know why DHT rocks but it does.... (0.00)
Posted by RPMac on 2019-06-18, 12:41:24 (45.20.190.131)
I have a 2A3 amp with DHT driver. I have two monoblock pairs (2A3 and 300B...better amps??) with IDHT drivers. I always go back to the all DHT amp. .......

83: Tube DIY Asylum, RE: Two things Dennis ... calculations & performance (0.00)
Posted by RPMac on 2019-05-11, 06:41:52 (45.20.190.131)
Isn't liking the sound of the music the real end goal? Most SS amps will have the numbers you speak of, but don't deliver the "liking the sound of the music". .......

84: SET Asylum, RE: Don't go there (0.00)
Posted by RPMac on 2019-04-27, 07:25:37 (107.77.233.155)
unless you're ready to stay there. My opinion I keep going back to my allDHT amps.> Altec 605b I've been thinking about a 20B monkey, but can only get 175vdc on the driver plate with what I have now. .......

85: SET Asylum, RE: But there are other serious drawbacks to consider with Direct Coupling (0.00)
Posted by RPMac on 2019-02-26, 06:39:04 (45.20.190.131)
Thanks Dennis, was just wondering if you had any experience with an all DHT SET amp. .......

86: SET Asylum, RE: But there are other serious drawbacks to consider with Direct Coupling (0.00)
Posted by RPMac on 2019-02-21, 05:50:14 (45.20.190.131)
Have you ever built a SET amp with a DHT driver? .......

87: SET Asylum, RE: But there are other serious drawbacks to consider with Direct Coupling (0.00)
Posted by RPMac on 2019-02-19, 16:57:25 (45.20.190.131)
Bottlehead had the Paraglow and Paramount that were 2A3 DC with C4S on driver. I've used your schematic as a reference to convert my Paraglow to a monkey type circuit. .......

88: High Efficiency Speaker Asylum, RE: Seriously? (0.00)
Posted by RPMac on 2019-01-27, 07:27:39 (45.20.190.131)
When you don't hear much over 10k, no matter how old you are, full range is satisfactorily achievable with a good 12 or 15 incher. When you listen to singers, voice is what counts. .......

89: SET Asylum, RE: Paraglow are working again and transformed (0.00)
Posted by RPMac on 2019-01-03, 13:14:59 (45.20.190.131)
The amps were in storage for several years with issues with the ccs boards, so I didn't make a direct comparison. The sound stage is wide and out front into the room with good detail and midrange. My .......

90: SET Asylum, RE: Paraglow are working again and transformed (0.00)
Posted by RPMac on 2019-01-02, 13:58:40 (45.20.190.131)
No coupling cap, Paraglows are direct coupled. But they do have the parafeed cap which may be what you meant. An oil there would be a good try. As CB said, replacing power supply caps is important for .......

91: SET Asylum, RE: Exactly what I was talking about... (0.00)
Posted by RPMac on 2018-12-08, 06:55:35 (45.20.190.131)
Dave, I did add stuffing to the box. My goal was to limit the coloration of the box and any from the horn itself. When I rapped on the side before bracing, it was a deep thump. After it was much highe .......

92: SET Asylum, RE: Exactly what I was talking about... (0.00)
Posted by RPMac on 2018-12-02, 12:44:58 (45.20.190.131)
1) I used plumbers putty to dampen the back of the horns. Rope caulk is also used and I'm sure there are other products. Got this from a Klipsch forum. 2) Used felt drawer liner to go around the mouth .......

93: SET Asylum, RE: Exactly what I was talking about... (0.00)
Posted by RPMac on 2018-12-01, 06:51:41 (45.20.190.131)
Listening to Heresy IIs since mid 80's...listening fatigue went away with SET. Did some cheap, reversible mods to speakers that also helped. .......

94: SET Asylum, +1 for Stereomour (0.00)
Posted by RPMac on 2018-11-28, 15:54:48 (45.20.190.131)
Doc B and Paul Joppa are excellent designers. The Stereomour is a good place to start and a good place to end up. I have mono blocks with Magnaquest iron, but always go back to my 3B7/2A3 Stereomour. .......

95: SET Asylum, RE:Dr lowmu (0.00)
Posted by RPMac on 2018-05-17, 14:00:56 (45.20.190.131)
People here ridiculed Jeff for his comments about a short piece of wire changing the sound of an amp. In the context of whole house wiring, wouldn't this be the same? .......

96: Tube DIY Asylum, RE: All triode 'wine box' (0.00)
Posted by RPMac on 2018-05-17, 13:50:31 (45.20.190.131)
I asked a question and appreciate his answer. It's responses like your that keeps others from posting. .......

97: Tube DIY Asylum, RE: All triode 'wine box' (0.00)
Posted by RPMac on 2018-05-16, 05:28:43 (45.20.190.131)
What about heat? Planning on using the same idea on my next build. .......

98: Tube DIY Asylum, RE: Now we're motoring... (0.00)
Posted by RPMac on 2017-11-23, 07:05:32 (45.20.190.131)
Andy, would this work as a driver stage for a 2A3 or 300b SET? .......

99: SET Asylum, RE: lamentations below ??? (0.00)
Posted by RPMac on 2017-10-19, 06:36:23 (45.20.190.131)
The best amp is the one that is never compared to anything else. .......

100: SET Asylum, RE: Bottlehead (0.00)
Posted by RPMac on 2017-04-27, 21:02:50 (45.20.188.45)
Stereomour II is what you want. The build instructions are very good if you can solder. If not, they may be able to find someone to build for you. But, an amp always sounds better if you build it your .......

101: Tube DIY Asylum, RE: What an astonishingly insightful (and iconoclastic) assessment of some formerly revered designs.... (0.00)
Posted by RPMac on 2017-03-22, 15:30:39 (45.20.188.45)
Tom, I thought I remembered reading that you were a musician and preferred SET with DHTs. Andy Evans is who I was referring to for all DHT SET...(hope he doesn't get dragged into this). My system amps .......

102: Tube DIY Asylum, RE: What an astonishingly insightful (and iconoclastic) assessment of some formerly revered designs.... (0.00)
Posted by RPMac on 2017-03-22, 05:55:56 (45.20.188.45)
What about the professional musicians that have found that all direct-heated triode single-ended amplifiers reproduce the sound of musical instruments most accurately? Do they not know any better? No, .......

103: Tube DIY Asylum, RE: Got it! (0.00)
Posted by RPMac on 2017-01-31, 14:00:35 (45.20.188.45)
You give me too much credit. The big help was having the schematic to look at. If more people would put up a schematic, it would make it easier to understand what is being talked about and easier to l .......

104: SET Asylum, RE: Yes, they are cathode biased (0.00)
Posted by RPMac on 2017-01-30, 20:19:54 (45.20.188.45)
The 5965 was used in the original Paraglow kit. They would need to know that to help you at BottleHead. The EXO-36 are 16 ohm secondary The EXO-35 are 8 ohm .......

105: SET Asylum, RE: Yes, they are cathode biased (0.00)
Posted by RPMac on 2017-01-30, 16:59:03 (45.20.188.45)
Frihed is correct that you will get better answers on the BottleHead forum under "Legacy Products" from the designers. There were a couple of variations...what is your driver tube? It is direct-couple .......

106: Tube DIY Asylum, RE: Help needed: Significant Voltage drop after PS caps (0.00)
Posted by RPMac on 2017-01-29, 11:53:11 (45.20.188.45)
The out of L1,the in of L2, and the top of C1 are the same point schematically. If you are getting two different voltages, they aren't the same point. Check your wiring and soldering. .......

107: SET Asylum, RE: Paraglow 2a3 SET (0.00)
Posted by RPMac on 2017-01-29, 07:09:15 (45.20.188.45)
Yes, came with all magnequest iron Replaced by Paramount .......

108: Tubes Asylum, RE: Another tube (0.00)
Posted by RPMac on 2017-01-03, 20:07:40 (45.20.190.36)
Another tube cured the problem Thanks guys .......

109: Tubes Asylum, Turn on issue (0.00)
Posted by RPMac on 2017-01-03, 15:51:27 (45.20.190.36)
I have a RCA 2A3 that makes a loud scratching pop at turn-on and some black marks on the inside of the glass at the top, but plays fine. Should I be concerned? .......

110: High Efficiency Speaker Asylum, RE: Altec 605b simple xover (0.00)
Posted by RPMac on 2016-11-23, 07:25:28 (45.20.190.36)
My plan is to get the L-pads and play with different cap values to find what I "most " like. Then compare it to the Markwart xover. Any recommendation for a RTA app for my iPad? Thanks for your help. .......

111: Tube DIY Asylum, Magnequest and Bottlehead (0.00)
Posted by RPMac on 2016-11-21, 16:00:56 (45.20.190.36)
are good places for parafeed info. Paul Joppa is the man .......

112: High Efficiency Speaker Asylum, RE: Altec 605b simple xover (0.00)
Posted by RPMac on 2016-11-21, 15:48:36 (45.20.190.36)
Thanks for the reply To answer your question, I already have some L-pads on the way. I listen to singer/song writers, so vocal range is important. If I used the xover calculator right, I used a 3.3uf .......

113: High Efficiency Speaker Asylum, RE: Altec 605b simple xover (0.00)
Posted by RPMac on 2016-11-16, 20:40:20 (45.20.190.36)
Thanks for the links, but I was wanting to minimize components between speakers and amps. Was hoping someone could give me some insight. .......

114: High Efficiency Speaker Asylum, RE: Altec 605b simple xover (0.00)
Posted by RPMac on 2016-11-11, 14:07:31 (45.20.190.36)
The midrange is what I like about the change. GP shows their 416 flat out to about 3K. Don't know how similar the 605b woofer would be. .......

115: High Efficiency Speaker Asylum, Altec 605b simple xover (0.00)
Posted by RPMac on 2016-11-10, 06:43:11 (45.20.190.36)
I was inspired by a post by Mr. Roberts running his 414 full range with a cap to his horn. I decided to try this with my open baffle 605s(replacing markwart xovers)...15" run full range with a 3.3uf t .......

116: Tubes Asylum, RE: 300B Tube Socket (0.00)
Posted by RPMac on 2016-08-14, 13:47:52 (45.20.190.36)
I have the same issue as Rockpassion with my BeePre and have been thinking about the teflon sockets from Valab. Any thoughts? .......

117: Tube DIY Asylum, Another +1 for all DHT... (0.00)
Posted by RPMac on 2016-07-16, 06:27:31 (45.20.190.36)
To my ear, voices are most realistic. I bought a BottleHead built Stereomour prototype with 3B7 driver which beats my other BH amps that have MQ iron. Digital front end with BH-DAC through Altec 605B .......

118: Tube DIY Asylum, RE: now I am really puzzled ...... (0.00)
Posted by RPMac on 2016-04-28, 12:29:30 (45.20.190.246)
There are coupling caps between the stages that aren't drawn in the schematic. I'm puzzled about how the components on the 45 cathode work. Shouldn't they be the same layout as the 26? .......

119: Tube DIY Asylum, RE: 300B-801A-300B..... (0.00)
Posted by RPMac on 2015-12-30, 14:35:20 (45.20.190.246)
Or 6A3-10Y-2A3. I have MQ iron to do both in parafeed and a BH BeePre for the 300B/6A3 first stage. Direct couple the driver/output?? If I could get 90dB at listening position thru Altec 605Bs, I'd be .......

120: Tube DIY Asylum, RE: 1/4 value of what? (0.00)
Posted by RPMac on 2015-12-30, 07:28:57 (45.20.190.246)
How do Andy Evans and Thomas Mayer get a driver like a 10Y to work with a 300B? .......

121: Tube DIY Asylum, RE: power supply vs sound? (0.00)
Posted by RPMac on 2015-02-24, 10:44:01 (98.95.208.20)
I think a lot of people are afraid to ask for help here. I've been warned against it. But then, I'm probably being absurd. .......

122: Tube DIY Asylum, RE: power supply vs sound? (0.00)
Posted by RPMac on 2015-02-23, 07:46:08 (98.95.6.76)
There are many very good engineers that have given us a lot of very "well-designed" audio equipment. I would bet that most that read here, believe that "well-designed" sound is sterile and irritating. .......

123: Tube DIY Asylum, RE: Impedance question. (0.00)
Posted by RPMac on 2015-02-15, 16:35:58 (98.95.192.164)
In theory there is no difference between theory and practice. In practice, there is. >>>Yogi Berra .......

124: Tube DIY Asylum, RE: Do they? (0.00)
Posted by RPMac on 2015-01-29, 07:11:49 (98.95.23.217)
"that people find pleasing to the ear" vs. what measures good/correctly Isn't this the basis for most of the debates here? My last solid state amp was a stasis amp(a Nelson Pass design). I've lived wi .......

125: SET Asylum, Thomas Mayer (0.00)
Posted by RPMac on 2015-01-27, 16:55:49 (98.95.14.33)
At VinylSavor .......

126: SET Asylum, Maximum Output (0.00)
Posted by RPMac on 2015-01-27, 07:47:30 (98.95.14.33)
I don't have the knowledge or experience to discuss this, but, when reading these and other forums discussing single ended triode design, it seems the design is always for maximum output from the expe .......

127: SET Asylum, RE: You guys were right !.. it needs a bias resistor ..... (0.00)
Posted by RPMac on 2015-01-19, 13:56:18 (98.95.7.107)
Wouldn't that be at V2 after the coupling cap? V1 has a grid choke. Dennis suggested 350K or 250K. .......

128: SET Asylum, RE: BB Proof 2A3 DC (0.00)
Posted by RPMac on 2014-12-06, 08:30:48 (98.95.207.136)
PJ will have a negative opinion of a standby switch unless it is at rated voltage. I'd like to see a 4P1L driver in a 'Monkey' layout, maybe with filament bias. Not much gain, but all DHT would be swe .......

129: SET Asylum, RE: A Story of Harmonics (0.00)
Posted by RPMac on 2014-12-06, 08:23:47 (98.95.207.136)
Jamie, I remember reading an article in Stereo Review where one of the editors decided to learn how much distortion could be heard in 'real world' listening to music. He got some of his 'golden ear' b .......

130: SET Asylum, RE: Why waste the time? (0.00)
Posted by RPMac on 2014-12-05, 08:08:44 (98.95.18.10)
No doubt science has made advances in the last 100 years, so why do we build amps with 1920's technology to listen to our music? Because it sounds better? Is there scientific proof that it does? ::: T .......

131: Tube DIY Asylum, RE: Just thinking out loud here (0.00)
Posted by RPMac on 2014-11-26, 12:41:22 (98.95.3.186)
Welding 1/4" to 1/2" would be a piece of cake. .......

132: Tube DIY Asylum, RE: Anyone used a TIG Welder? (0.00)
Posted by RPMac on 2014-11-25, 21:09:07 (98.95.3.186)
TIG is an electric torch with a shield gas.If you can use an oxy-acetylene torch, you can master TIG. Russ has given you the best advise .......

133: SET Asylum, RE: How does it sound? (0.00)
Posted by RPMac on 2014-11-17, 12:00:37 (98.95.207.184)
Thank you for your answer. I also have 3 SET amps by Bottlehead, but the point that I was trying to make was...isn't that the only question that matters? .......

134: SET Asylum, RE: Mystery has an end, in this case, enough is enough (0.00)
Posted by RPMac on 2014-11-17, 06:17:22 (98.95.207.184)
How does it sound? .......

135: Tubes Asylum, Motor run or film caps (0.00)
Posted by RPMac on 2014-09-18, 06:57:56 (98.95.22.182)
Is there a reason to use one over the other? .......

136: Tubes Asylum, RE: +1 for the Bottlehead BeePre 300B (0.00)
Posted by RPMac on 2014-06-27, 08:24:29 (98.95.16.90)
I agree, it's all about the music and listening. My only source is digital and the tube gear allows me to listen for as long as I want (the wife controls the 'as loud as I want') without fatigue. I ha .......

137: Tubes Asylum, RE: Help choosing my last tube purchase - preamp or amp? (0.00)
Posted by RPMac on 2014-06-27, 08:15:14 (98.95.16.90)
What is your opinion of adding a third stage to go all DHT? As in...BeePre > DHT driver > Parafeed 300B output I've been looking for a schematic with a 45 driver, but haven't had any luck finding one. .......

138: Tubes Asylum, +1 for the Bottlehead BeePre 300B (0.00)
Posted by RPMac on 2014-06-26, 14:37:13 (98.95.16.90)
I lusted for it, bought it, and love it! YMMV, but I bet it would be a plus with the NAD or ST-70. I'm partial to Bottlehead and DHT...both need sensitive speakers, but I've found it worth it. ::: TOP .......

139: Tube DIY Asylum, RE: General characteristic of the sonics of pure silver (0.00)
Posted by RPMac on 2014-03-07, 12:34:41 (98.95.190.137)
If two wires are made with two different metals/elements, why are the characteristics exactly the same? .......

140: Tube DIY Asylum, Mil-spec (0.00)
Posted by RPMac on 2014-03-07, 12:28:57 (98.95.190.137)
It seems to me that the standard for military/government wire is silver plated, oxygen-free copper wire. Do they have proof it is better/different? .......

141: SET Asylum, RE: Bottlehead forum (0.00)
Posted by RPMac on 2014-03-07, 07:39:13 (98.95.190.137)
I think they are working out bugs on the new site and may go down from time to time. .......

142: SET Asylum, RE: Please recm'd a SET integ. (0.00)
Posted by RPMac on 2014-03-02, 16:53:22 (98.95.206.19)
Bottlehead Stereomour If you aren't a kit builder, there is someone to build it for you...check their forum. I love mine. Can go 2A3 or 45! .......

143: SET Asylum, Bottlehead forum (0.00)
Posted by RPMac on 2014-02-21, 10:55:44 (98.95.7.158)
Any idea when it will be back up? .......

144: SET Asylum, People that listen to music vs... (0.00)
Posted by RPMac on 2013-07-16, 08:08:26 (98.95.209.146)
People that listen to music vs. people that measure electronics I listen!! .......

145: SET Asylum, RE: get a separate 2.5v filament transformer and (0.00)
Posted by RPMac on 2013-05-10, 07:32:42 (98.95.253.23)
Jeff, is it also important to pre-heat the driver filaments? I have SS rectifier now, if I want to use 5v tube rectifier, would the 5v windings on power/B+ txf (pgp8.1) work without adding noise? Robe .......

146: High Efficiency Speaker Asylum, RE: Help with tool for cutting thick speaker materials. (0.00)
Posted by RPMac on 2013-04-09, 07:18:36 (98.95.253.23)
Why the change to butcher's block? sonics or looks or both? .......

147: Tube DIY Asylum, RE: No worries (0.00)
Posted by RPMac on 2013-03-01, 07:59:55 (98.95.253.23)
"Do you (or anyone else) think that it is possible for 1 or more amps to be drawn instantaeously in a vacuum tube amplifier?" Isn't there a time factor to that? How much current goes through a circuit .......

148: Tube DIY Asylum, RE: Available Instantaneous Current is a well known (0.00)
Posted by RPMac on 2013-02-28, 13:53:09 (98.95.253.23)
"That's why I have a hard time understanding why so many people reject your concept of peak transients that are larger than normal working currents." In audio, wouldn't the muzzle blast of a gun be an .......

149: Tube DIY Asylum, Henry (0.00)
Posted by RPMac on 2012-11-21, 05:41:17 (98.95.7.241)
Why don't we hear complaining about these post? This is what shouldn't be on the forum! .......

150: Tube DIY Asylum, Gusser?? (0.00)
Posted by RPMac on 2012-11-19, 12:29:09 (98.95.7.241)
When music is recorded, isn't the dynamic range compressed? Is there any recorded music that is an accurate reproduction of the original performance? Would not a power supply that expands the dynamic .......

151: Tube DIY Asylum, RE: Wait, DrLowmu is right! (0.00)
Posted by RPMac on 2012-11-15, 06:06:40 (98.95.7.241)
Glow and nostalgia...I assume those are measurable scientific terms? .......

152: High Efficiency Speaker Asylum, RE: Electro-Voice (0.00)
Posted by RPMac on 2012-09-19, 13:37:45 (98.95.2.79)
My system is in my wife's house, so striving for flat 20 to 20K, even if possible, I'm not smart enough to achieve. The way I use my subs now is to turn them up until I hear them, then turn them down .......

153: High Efficiency Speaker Asylum, RE: Can't (0.00)
Posted by RPMac on 2012-09-19, 07:11:18 (98.95.2.79)
already have a second mortgage!!!! ;>D .......

154: High Efficiency Speaker Asylum, RE: Electro-Voice (0.00)
Posted by RPMac on 2012-09-18, 14:07:23 (98.95.2.79)
Thanks for the links. I may qualify for the E-V brotherhood. I have pairs of SP8B, SP12B, 12 TRXB, and T35. I'm listening to the SP12B's in my Heresy cabinets wired full range with a 1.5uf to the twe .......

155: High Efficiency Speaker Asylum, Electro-Voice (0.00)
Posted by RPMac on 2012-09-17, 07:28:39 (98.95.2.79)
Where can I get info on vintage E-V speakers and drivers? Thanks .......

156: Tube DIY Asylum, RE: Catastrophe in Montana, Dennis (0.00)
Posted by RPMac on 2012-08-30, 10:39:33 (98.95.2.79)
Dennis' frame of mind is typical of the people of that region...strong minded, self reliant, rugged individuals. Godspeed, Dennis, and our prayers are with you and your neighbors. .......

157: Tube DIY Asylum, RE: This is funny (0.00)
Posted by RPMac on 2012-08-22, 08:00:59 (68.19.147.36)
Cpwill builds a fire and throws gas on it so he can complain about it being too hot. At least Gusser had the balls to ask Cpwill's question for him. Why can't some people read a post, take it or leave .......

158: Tube DIY Asylum, Electronics industry (0.00)
Posted by RPMac on 2012-08-22, 07:50:28 (68.19.147.36)
Gusser, you arguement is empty without including the factors of economics/quality. Why does a manufacturer use lower quality components in their builds? Economics and competition You say you use "mil .......

159: Tube DIY Asylum, For real country music (0.00)
Posted by RPMac on 2012-08-22, 07:34:57 (68.19.147.36)
Check out Radio Free Texas .......

160: Tube DIY Asylum, RE: not wrong but incomplete (0.00)
Posted by RPMac on 2012-07-13, 06:55:01 (98.95.208.128)
Actually John should be in that group because he studied the power supply idea, modeled it, built it, listened to it and liked it. But he said working with low DCR, low C, and low Z made a good functi .......

161: Tube DIY Asylum, RE: FOR ITS INTENDED PURPOSE... (0.00)
Posted by RPMac on 2012-07-13, 06:29:31 (98.95.208.128)
Dan I like Klipsch speakers, so aren't you and I going to approach this issue from different perspectives? These long design philosophy threads, although entertaining, thought provoking, and education .......

162: Tube DIY Asylum, RE: Question: how does low current affects the plate curve and power supply noise of a hugh mu driver? (0.00)
Posted by RPMac on 2012-07-12, 11:51:49 (98.95.208.128)
I think you just described the original Volkswagen beetle, a quite accomplished design FOR ITS INTENDED PURPOSE...which was, I think, Jeff's point. .......

163: SET Asylum, RE: at RMAF (0.00)
Posted by RPMac on 2012-06-27, 07:20:55 (98.95.17.240)
I've been here much longer than 2 years. What do you believe the effect would be if you and a few others would follow your advice and "move on"???? I believe these type threads wouldn't exist and the .......

164: SET Asylum, RE: at RMAF (0.00)
Posted by RPMac on 2012-06-26, 06:32:25 (192.231.69.201)
I'd be willing to bet that to most of us, it is ALL ABOUT the sound of the amps we build and listen to. .......

165: SET Asylum, RE: Bypassing parallel Caps (0.00)
Posted by RPMac on 2012-06-18, 07:57:24 (98.95.17.240)
I'm trying to learn, so I have a question. For C446 to be series to C449, shouldn't they be connected positive to negative, not positive to positive? .......

166: SET Asylum, RE: And I am ... (0.00)
Posted by RPMac on 2012-06-13, 15:06:42 (98.95.17.240)
It's a shame some won't follow this advise. .......

167: SET Asylum, My reference to PJ was as an example of correctness. (0.00)
Posted by RPMac on 2012-06-13, 11:39:55 (98.95.17.240)
The post Tre' references appear to have been deleted by a moderator, who should handle such issues. .......

168: SET Asylum, RE: To Whom It May Concern (0.00)
Posted by RPMac on 2012-06-13, 06:29:14 (98.95.17.240)
Paul Joppa directs posters to bottlehead.com and the bottlehead forum for more information on their products...what is the difference??? You and Tre' should read Paul's post below many times! ::: TOPI .......

169: SET Asylum, Dennis Fraker (0.00)
Posted by RPMac on 2012-06-08, 05:07:42 (98.95.17.240)
What ever you decide to do, thank you for posting. .......

170: SET Asylum, RE: There you go again.......... (0.00)
Posted by RPMac on 2012-06-03, 13:21:14 (98.95.17.240)
All the amps I've owned before my SET have been flat from 20-20K with distortion well below 1%. None sounded nearly as good as the SET which doesn't have "the numbers". .......

171: SET Asylum, RE: Obviously sales are down (0.00)
Posted by RPMac on 2012-05-29, 07:07:27 (98.95.17.240)
Grassfed??? Well, that explains the tough hide. Been battling conventional wisdom on that since '99. About the same time I found tubes. Put me down as a "NO" vote...I want to hear what the designers o .......

172: SET Asylum, RE: Dennis Fraker (0.00)
Posted by RPMac on 2012-05-27, 10:31:52 (98.95.17.240)
The iPod is a great accomplishment of electrical engineering. I still want to hear from the designers of great sounding amps. .......

173: SET Asylum, RE: Dennis Fraker (0.00)
Posted by RPMac on 2012-05-27, 07:01:22 (98.95.17.240)
I have no problem with post being challenged, but I think it more benefitual when done in an educational manner, not a condescending manner. I appreciate the industry professionals here and look to th .......

174: SET Asylum, RE: Dennis Fraker (0.00)
Posted by RPMac on 2012-05-25, 13:51:11 (98.95.17.240)
On the other hand, Mr. Fraker builds very good amps for sell to the public. "It's the "best" amp I have ever heard .....period." - unsolicited opinion from this thread I would think he knows something .......

175: SET Asylum, RE: Dennis Fraker (0.00)
Posted by RPMac on 2012-05-25, 10:59:39 (98.95.17.240)
"I believe very little of what you say." -Tre' Who does this matter to other than you??? .......

176: Tube DIY Asylum, RE: Will direct coupling shorting tube life?? (0.00)
Posted by RPMac on 2012-05-21, 07:39:15 (98.95.17.240)
Seems like I remember seeing a schematic with a tube damper diode following SS rectifier for surge limiting or am I wrong? .......

177: Tube DIY Asylum, RE: Voltage Gain (0.00)
Posted by RPMac on 2012-05-15, 11:01:55 (98.95.17.240)
Doesn't Paully have a Bottlehead Foreplay and wouldn't it provide the gain? .......

178: SET Asylum, RE: What speakers? Nt (0.00)
Posted by RPMac on 2012-05-12, 16:43:09 (98.95.17.240)
Let me say up front that I am in no way connect to Bottlehead other than being a very satisfied customer...but, the S.E.X. amp is designed exactly for someone like you as an entry level kit. Also, Bot .......

179: Tube DIY Asylum, RE: OT: Another technical primer (0.00)
Posted by RPMac on 2012-05-11, 11:11:18 (98.95.17.240)
Wish I knew as much about electronics as I do about engines. .......

180: SET Asylum, What speakers? Nt (0.00)
Posted by RPMac on 2012-05-10, 11:47:56 (98.95.17.240)
Nt .......

181: SET Asylum, Ditto Bottlehead nt (0.00)
Posted by RPMac on 2012-05-09, 10:58:45 (98.95.17.240)
nt .......

182: Tube DIY Asylum, RE: in your own words... (0.00)
Posted by RPMac on 2012-05-07, 07:28:23 (98.95.17.240)
Jeff, Defending Dennis and yourself to these people is a waste of time. I deal with this mentality in my business. The conventional industry has their science that proves their methods to be the "corr .......

183: Tube DIY Asylum, RE: A primer on Modern Physics as it relates to tube amp design (0.00)
Posted by RPMac on 2012-05-07, 05:32:39 (98.95.17.240)
At least you are honest about the intent...to drive "the cult" from the forum. Congradulations. .......

184: SET Asylum, RE: Antique Sound Labs 2A3 Tulip ASL and Klipsh Heresy IIIs (0.00)
Posted by RPMac on 2012-05-05, 12:30:26 (98.95.17.240)
I pulled the horns out the front and covered the horn body with about a quarter inch of plumber's putty. More information on Klipsch forum. .......

185: SET Asylum, RE: Antique Sound Labs 2A3 Tulip ASL and Klipsh Heresy IIIs (0.00)
Posted by RPMac on 2012-05-04, 12:23:14 (98.95.17.240)
Maybe a bit off subject for this forum, but to make a big improvement on the Heresy's (at least to my ears) apply rope caulk or plumber's putty to the backside of the two horns. Damping the horns impr .......

186: Tube DIY Asylum, Engineers don't think like salesmen! (0.00)
Posted by RPMac on 2012-05-03, 14:14:19 (98.95.17.240)
Nt .......

187: Tube DIY Asylum, RE: Math and science WILL build a great amp (0.00)
Posted by RPMac on 2012-04-19, 07:08:24 (98.95.17.240)
Henry, there are stark differences in the way you react to Dennis and Jeff and the way John Swensen does. Because of John, I will try Jeff's low storage power supply to hear for my self. To me, the bo .......

188: Tube DIY Asylum, RE: RF Practices (0.00)
Posted by RPMac on 2012-04-19, 06:44:46 (98.95.17.240)
Note: the last two words of my question "silver plated"...although I didn't see the need for caps. I noticed your post has morphed since last night where you stated the reason for use were the mechani .......

189: Tube DIY Asylum, RE: RF Practices (0.00)
Posted by RPMac on 2012-04-18, 17:36:38 (98.95.17.240)
If there is no difference in conduction at audio frequency between cu and ag, why do you use silver plated? .......

190: Tube DIY Asylum, Cowboy logic (0.00)
Posted by RPMac on 2012-04-15, 13:05:46 (98.95.17.240)
You can't lead some horses to water, much less make them drink. .......

191: Tube DIY Asylum, Isn't this a TUBE forum? (0.00)
Posted by RPMac on 2012-04-03, 05:30:16 (68.19.185.152)
? .......

192: Tube DIY Asylum, RE: Low DCR and LSES are TWO DIFFERENT THINGS! (0.00)
Posted by RPMac on 2012-03-05, 17:20:38 (68.19.185.152)
Obviously I don't know the difference, but what I read being discussed was what Jeff is doing. If I had become a EE like I once thought, I'm sure I could discuss it more intelligently. Yes, all sides .......

193: Tube DIY Asylum, RE: Then start you own thread. (nt) (0.00)
Posted by RPMac on 2012-03-05, 15:24:04 (68.19.185.152)
I did as Jeff asked and contacted him. He sent me information for me to read. If I started another thread, you, wheezer and others would jump in and tell us how stupid we were. I've read on other for .......

194: Tube DIY Asylum, RE: I do! (nt) (0.00)
Posted by RPMac on 2012-03-05, 10:59:40 (68.19.185.152)
nt .......

195: Tube DIY Asylum, RE: Printed Circuits? (0.00)
Posted by RPMac on 2012-02-28, 12:39:11 (68.19.185.152)
Gusser, just interested, why do you spend time on a Tube DIY forum? .......

196: Tube DIY Asylum, RE: need help with preamp power supply (0.00)
Posted by RPMac on 2012-01-10, 06:03:13 (98.95.13.6)
Isn't c4s "regulation"? Big Bottlehead "upgrade" or is that innovation?? I like the VR tube also...haven't "upgraded" my FP III because it looks cool! .......

197: Tube DIY Asylum, RE: tube electronic x-over (0.00)
Posted by RPMac on 2010-04-01, 12:55:26 (98.95.0.132)
http://diyaudioprojects.com/mirror/members.aol.com/sbench101/#Electronic .......

198: Bottlehead Forum, RE: I love it! (0.00)
Posted by RPMac on 2009-08-12, 09:23:20 (70.152.108.116)
Make it "rough duty" so I can use it in my tractor cab! .......

199: Bottlehead Forum, RE: Excellent! (0.00)
Posted by RPMac on 2009-08-05, 11:22:19 (68.222.71.92)
Would this work? Given 100K input impedance on both high frequency and low frequency amps for ~125hz crossover... Put a 0.012uF cap inline between FPIII out and high frequency amp in. Put a 0.012uF ca .......

200: Bottlehead Forum, RE: Yup ! (0.00)
Posted by RPMac on 2009-08-05, 11:05:42 (68.222.71.92)
Would not 0.1uF be 0.0000001F ? .......

201: MagneQuest/Peerless Forum, RE: EXO-35 silver (0.00)
Posted by RPMac on 2009-08-05, 10:31:08 (68.222.71.92)
Are they still available? .......

202: Bottlehead Forum, RE: Thanks, Doc nt (0.00)
Posted by RPMac on 2009-07-16, 11:09:12 (72.147.251.139)
nt .......

203: Bottlehead Forum, RE: DAC is sounding very good, as are shunt reg'd 2A3 amps (0.00)
Posted by RPMac on 2009-07-16, 06:36:48 (72.147.251.139)
Sounds like the BH-DAC will mate with a squeezebox...is that correct? .......

204: Bottlehead Forum, RE: Any suggestions on going digital? (0.00)
Posted by RPMac on 2009-07-07, 08:08:42 (72.147.252.171)
I have a squeeze box classic. Connect wireless to my main computer with external hard drive(also has Ethernet connection). I'm just using the internal DAC through RCA plugs...also has coax and optic o .......

205: Bottlehead Forum, power supply cap ?? (0.00)
Posted by RPMac on 2009-05-26, 06:35:02 (70.157.23.21)
I made a purchase of 8 CDE 35uF 500v oil and film motor run caps. I was thinking of replacing all the B+ power supply caps in my FPIII and PGIIs and cathode bypass in PGIIs. Any advise would be apprec .......

206: Bottlehead Forum, RE: "Stereo-more" update? (0.00)
Posted by RPMac on 2009-05-19, 06:20:07 (65.12.32.165)
In the original spirit of Bottlehead, keep the kit simple and as inexpensive as possible and plant the seeds of experimentation in the manual. You're having way too much fun!!! ;>D .......

207: Bottlehead Forum, RE: Cooper chassis plate (0.00)
Posted by RPMac on 2009-05-13, 19:59:26 (68.222.74.232)
I have the horses...it's the collection method that eludes me!!! .......

208: Bottlehead Forum, RE: And a whole chassis? (0.00)
Posted by RPMac on 2009-05-13, 10:27:50 (72.147.228.144)
Totally safe IF all parts of the chassis are connected to safety ground. Think of electrical outlet boxes. .......

209: Bottlehead Forum, RE: Bottlehead DAC (0.00)
Posted by RPMac on 2009-04-22, 06:21:19 (72.147.228.122)
If you are going PC, you can start now by ripping your CDs to a harddrive. I used iTunes apple lossless WITH error correction to an external harddrive...then copied the file to a second ex-harddrive f .......

210: Bottlehead Forum, RE: Bottlehead DAC (0.00)
Posted by RPMac on 2009-04-17, 12:43:50 (72.147.252.206)
Thanks for the update. What will be input options? RCA digital? Optical? .......

211: Bottlehead Forum, RE: Err the ORIGINAL 4play ?? (0.00)
Posted by RPMac on 2009-04-17, 07:27:12 (72.147.252.206)
I agree...I think the biggest drawback to the original Foreplay was the size of the top plate. What about offering the original "bare bones" Foreplay circuit with the new top plate and PT? First upgra .......

212: Bottlehead Forum, RE: Bottlehead DAC (0.00)
Posted by RPMac on 2009-04-17, 07:13:41 (72.147.252.206)
Doc and PJ are working on a Bottlehead DAC...that will be released soon...right guys???? ;>D We are hoping, anyway!!! As for the amps...what they said. I don't think you can go wrong with Bottlehead.. .......

213: Tube DIY Asylum, RE: AC cable question (0.00)
Posted by RPMac on 2009-04-16, 06:09:01 (72.147.228.103)
its1louder, I too have given thought to "The best connector is no connector theory". The safety aspect of a wall socket and plug is a quick disconnect. If you are going to hard wire, hardwire to a swi .......

214: Tube DIY Asylum, RE: Hmm.. (0.00)
Posted by RPMac on 2009-04-16, 05:57:16 (72.147.228.103)
What I take from the quote is that money and time are better spent on proper design. I did realize an improvement when I replaced the two wire "lamp cord" on my BH SE amps with a twisted three wire sh .......

215: Tube DIY Asylum, RE: AC cable question (0.00)
Posted by RPMac on 2009-04-15, 06:47:01 (72.147.228.103)
"To be facetious, we are trying to simulate a kilobuck line cord here. A general rule of thumb should be intuitively obvious to the most casual observer-if you can hear the effects of a line cord, you .......

216: Bottlehead Forum, RE: Sorry gave you wrong values (0.00)
Posted by RPMac on 2009-04-02, 05:16:38 (68.19.137.151)
The first answer was the one I was looking for, thanks. What is your B1 voltage? .......

217: Bottlehead Forum, RE: A success tale of 2 amps (0.00)
Posted by RPMac on 2009-04-01, 06:19:48 (68.222.72.188)
How much resistance did you end up putting between B+ and B6? I have 20K as artsybrute suggested...amp has been working several days without a problem, but B6 voltage is not as stable. .......

218: Bottlehead Forum, RE: Update on TJ Board Paraglow 2.....and Paramont Issue (0.00)
Posted by RPMac on 2009-03-30, 06:38:58 (65.12.32.117)
Nutube wrote: "Folks, I finally got my Bad amp to read 224.1 vdc ( 224 vdc is the target) and upon checking the good amp it was 278 vdc;so I started playing with different combinations of resistors an .......

219: Bottlehead Forum, RE: What is magical about 225VDC... (0.00)
Posted by RPMac on 2009-03-26, 05:55:25 (72.147.197.27)
The above post was suppose to read..."not" premature...well, I was. It seems that the added resistance to the 15K only drops the startup voltage...instead of starting at ~420 and working its way down .......

220: Bottlehead Forum, RE: What is magical about 225VDC... (0.00)
Posted by RPMac on 2009-03-24, 17:33:58 (72.147.197.200)
I think I got it fixed...been playing for a couple hours with no problem. The problem was the thing Doc and PJ always suspect first...bad solder joint at B1. Appreciate all the help...hope I'm prematu .......

221: Bottlehead Forum, RE: What is magical about 225VDC... (0.00)
Posted by RPMac on 2009-03-24, 10:29:49 (72.147.197.200)
Toolmaker!! When I was in college, I worked about a year in an Ag research station shop(built all the hair brained ideas the PhD's would come up with). Learned to cut&weld, drill, use a lath, limited .......

222: Bottlehead Forum, RE: What is magical about 225VDC... (0.00)
Posted by RPMac on 2009-03-24, 06:49:07 (72.147.197.200)
artsybrute, I really appreciate you taking the time to help me, but be sure to type slow enough for me to understand...I'm a rookie, so please don't assume I know anything. Not that this matters, but .......

223: Bottlehead Forum, RE: What is magical about 225VDC... (0.00)
Posted by RPMac on 2009-03-23, 17:04:50 (70.152.108.52)
Why do I have a 370-0-370 transformer? I don't know! It's a PGP 8.1, but I measure 118VAC primary and 369-0-369 secondary(78mA)...465VDC rectified...448VDC after the choke. The information I found ra .......

224: Bottlehead Forum, RE: What is magical about 225VDC... (0.00)
Posted by RPMac on 2009-03-23, 05:18:32 (70.152.108.52)
My grid is running at 166vdc. Looks like my root problem is my PT is 370-0-370 instead of the designed for 350-0-350. .......

225: Bottlehead Forum, RE: Paraglow II and Sophia Electric 2A3 ? (0.00)
Posted by RPMac on 2009-03-21, 13:29:35 (70.152.108.52)
I'm a rookie too and no, I haven't done this yet. I know PJ and Doc have posted on this several times. .......

226: Bottlehead Forum, RE: Paraglow reg board...spoke too soon (0.00)
Posted by RPMac on 2009-03-21, 13:22:56 (70.152.108.52)
What is magical about 225vdc? What if I ran at a higher voltage? B8...5.26vdc B6...225.0vdc .......

227: Bottlehead Forum, RE: Paraglow reg board...FIXED!!! (0.00)
Posted by RPMac on 2009-03-21, 12:39:14 (70.152.108.52)
It finally sunk it what you and PJ were trying to teach me. I had two 2.5K 12watt resistors(a little over kill) that came with the kit originally...put one in series with the 15K on the bad amp...trim .......

228: Bottlehead Forum, RE: Paraglow II and Sophia Electric 2A3 ? (0.00)
Posted by RPMac on 2009-03-21, 11:11:51 (70.152.108.52)
Do a search on "mesh plate" here. Basically the recommendation is to put in a switch to delay B+ voltage until the tube filaments have heated. .......

229: Bottlehead Forum, Paraglow reg board...new info (0.00)
Posted by RPMac on 2009-03-20, 12:51:40 (70.152.108.52)
I have the reg board working, but at different operating points. B6 reg plate is 247.9vdc B8 reg cath is 6.31vdc If I adjust the B6 voltage lower, at about 246vdc...B6 voltage drops to 168vdc; B8 to 2 .......

230: Bottlehead Forum, RE: corrected voltage post--2nd try (0.00)
Posted by RPMac on 2009-03-19, 07:36:43 (70.152.107.78)
Looks like time for Plan B. Doc, should I measure and replace just the trimpot or replace the trimpot and the 82.5K with one resistor? .......

231: Bottlehead Forum, RE: Replaced LT1431 (0.00)
Posted by RPMac on 2009-03-18, 15:26:54 (70.152.107.78)
no change .......

232: Bottlehead Forum, RE: Balance power (0.00)
Posted by RPMac on 2009-03-18, 14:21:36 (70.152.107.78)
The step down transformer is a 240/480vac to 120/240vac. The two primary windings are wired parallel as for 240v and the two secondary windings are wired series as for 240v. With 120vac on the primary .......

233: Bottlehead Forum, RE: Voltages (0.00)
Posted by RPMac on 2009-03-18, 13:53:44 (70.152.107.78)
Paul, look at the 2nd try post. Information was being left out of my post for some reason even though it previewed correctly. I think you were correct earlier when you told me the LT1431 was bad on th .......

234: Bottlehead Forum, RE: corrected voltage post--2nd try (0.00)
Posted by RPMac on 2009-03-18, 13:26:07 (70.152.107.78)
....Amp #1....Amp #2(bad amp) 118VAC......118VAC main in @ SW 371VAC......369VAC PT out (terminal 1&2) 466VDC......465VDC 1st PS cap(terminal 3) 450VDC......448VDC 2nd PS cap(terminal 6) 203VDC......2 .......

235: Bottlehead Forum, RE: corrected voltage post (0.00)
Posted by RPMac on 2009-03-18, 12:59:55 (70.152.107.78)
I tried to edit the voltage post and lost information, so this is the corrected post. Amp #1Amp #2(bad amp) 118VAC118VAC main in @ SW 371VAC369VAC PT out (terminal 1&2) 466VDC465VDC 1st PS cap(termina .......

236: Bottlehead Forum, RE: Voltages (0.00)
Posted by RPMac on 2009-03-18, 06:44:02 (70.152.107.78)
Amp #1Amp #2 118VAC_.053VDC B2 driver grid ??? 2.46VDC_7.81VDC B8 reg. cat The reg board input (B6) goes to R4(82.5K) > R5(100K VR) > terminal 2 of 1431 edit: there is a .27uf cap parallel to R4 & R5 .......

237: Bottlehead Forum, RE: and for something completely different... (0.00)
Posted by RPMac on 2009-03-17, 14:19:41 (65.12.32.66)
I had my sovtek's in when I measured the voltages, but have put my valve art's in. Also the power company made changes to the grid(doubled their mains voltage) today. Let me re-measure. .......

238: Bottlehead Forum, RE: just a thought (0.00)
Posted by RPMac on 2009-03-17, 13:40:47 (65.12.32.66)
Yes, I swapped the 6n1p's...no change in voltage. .......

239: Bottlehead Forum, RE: No... (0.00)
Posted by RPMac on 2009-03-17, 13:37:25 (65.12.32.66)
15K goes from terminal 6 to an unused position(terminal 12) with a jumper to B6. Originally, it shows 2 7.5K 3 watt tied end-to-end to form a 15K Robert .......

240: Bottlehead Forum, RE: just a thought (0.00)
Posted by RPMac on 2009-03-17, 12:55:31 (65.12.32.66)
This is the same problem I'm having with one of my boards.(posted below) Spec voltages are 410VDC before the 15K and 225VDC on the other side(B6/plate) adjusted with the trim. My good amp has 446VDC a .......

241: Bottlehead Forum, RE: Thanks Doc ...in more ways than one. ..... (0.00)
Posted by RPMac on 2009-03-17, 12:41:09 (65.12.32.66)
I have JT boards...one has worked perfect...the other I have never been able to set the B6/plate voltage, but has been making great music for about two years. I replaced the VR and the voltage went fr .......

242: Bottlehead Forum, RE: Thanks, Paul (0.00)
Posted by RPMac on 2009-03-04, 06:53:10 (68.222.73.240)
I rechecked the wiring and everything looks correct. The amp is playing fine, so doesn't look like any C4S problem...both LEDs lighted. I'm assuming the 1431 is the problem...got some replacements on .......

243: Bottlehead Forum, RE: Proud new owner of a pair of Heresy's (0.00)
Posted by RPMac on 2009-03-03, 06:10:54 (70.152.108.219)
What caps did you get? I replaced mine with Auricaps...more $$$s, but nice improvement. The plumbers putty is simple, just cover the back side of the horn with 1/8-1/4 inch thick. If your speakers are .......

244: Bottlehead Forum, RE: Paraglow II C4S/shunt reg. problem (0.00)
Posted by RPMac on 2009-03-02, 12:52:57 (72.147.249.98)
You're correct, it's John Tucker's design. The terminal numbers I gave are off the schematic. The 1431 is D shaped...according to the schematic the top terminal is #2, the middle is #1 and the bottom .......

245: Bottlehead Forum, RE: Proud new owner of a pair of Heresy's (0.00)
Posted by RPMac on 2009-03-02, 11:10:52 (72.147.249.98)
I had the same experience when I connected mine to Foreplay/Paraglow II!! One tweak I think is a must(other than replacing old caps in xover) is to dampen the back of the horns with plumber's putty... .......

246: Bottlehead Forum, Paraglow II C4S/shunt reg. problem (0.00)
Posted by RPMac on 2009-03-02, 10:55:55 (72.147.249.98)
I have a problem with the shunt regulator on one of my C4S/shunt regulators in my Paraglow II. I don't know enough to ask the right question, so I'll just tell you what I know. Power supply voltages o .......

247: Bottlehead Forum, RE: DAC in Doc B's system? (0.00)
Posted by RPMac on 2009-02-13, 07:44:50 (72.147.249.44)
I have 52 days of music on external hard drive and have been living with a stock Squeeze Box for a few months now. Like it much better than the crappy Sony multidisc players I was using. The best part .......

248: Bottlehead Forum, RE: Thanks Guys (0.00)
Posted by RPMac on 2009-02-05, 11:20:29 (70.152.116.8)
Looks like I need to learn how to use PSUD. One other question...Would there be a different effect in the PS capacitors because of physical size? Such as a large 100uf PIO compared to the small 100uf .......

249: Bottlehead Forum, Power supply question (0.00)
Posted by RPMac on 2009-02-04, 11:50:13 (68.222.73.111)
Would there be any danger in trying this on my Paraglows?(or would it be worth trying?) *************************** " Here is a standard by which I go to calculate the value of the first capacitor ( .......

250: Bottlehead Forum, RE: offline again (0.00)
Posted by RPMac on 2009-02-02, 09:12:32 (70.157.4.141)
I've used Trend Micro with good results for years. They also have an internet scan called 'housecall'. .......

251: Bottlehead Forum, Paraglow problem (0.00)
Posted by RPMac on 2009-02-02, 09:08:20 (70.157.4.141)
I pulled my PGIIs out of my system to do some tweaks(but never got around to doing them). When I put them back in the system, one amp made a loud squealing, popping, crackling sound. I immediately shu .......

252: Bottlehead Forum, RE: Tung oil finish for bases (0.00)
Posted by RPMac on 2009-02-01, 07:34:23 (72.147.207.28)
Steel wool leaves little "sparklelies" in the wood, but you need good light to see them and know what you are looking for...99.9% of people would never know, so not much of an issue. I was always told .......

253: Bottlehead Forum, RE: is a PLLXO possibe for S.E.X? (0.00)
Posted by RPMac on 2009-01-10, 07:53:46 (72.147.252.149)
*** .......

254: Bottlehead Forum, RE: prototype crossover (0.00)
Posted by RPMac on 2009-01-09, 10:12:02 (72.147.252.149)
*** .......

255: Bottlehead Forum, RE: I'd settle for a schematic to convert a FP I [nt] (0.00)
Posted by RPMac on 2008-12-29, 12:21:41 (72.147.251.117)
nt .......

256: Bottlehead Forum, RE: Granger is wrong!!! (0.00)
Posted by RPMac on 2008-12-15, 16:27:48 (72.147.249.44)
Drink something gold....an anejo tequila(I'd recommend Sammy Hagar's Cabo Wabo) And it won't sound like it did 40 years ago...it'll be better!!! You'll like the Foreplay when you get it in your system .......

257: Bottlehead Forum, RE: Paramours and Cornwalls (0.00)
Posted by RPMac on 2008-11-18, 07:12:53 (72.147.227.83)
Put a layer of plumber's putty on the mid and tweeter horns really improves the detail. Adding bracing to the box tightens the bass. Wish my wife would let me have some Cornwalls! .......

258: Bottlehead Forum, RE: Obbligato Power Supply Film Caps (0.00)
Posted by RPMac on 2008-11-03, 06:13:01 (70.157.4.32)
Grainger, have you or anyone used these as last power supply cap or cathode bypass cap? Largely on your comments, I have Obbligato coupling caps in my FPI and parafeed cap in my PGII...very satisfied. .......

259: Bottlehead Forum, RE: Grassfed beef producers (0.00)
Posted by RPMac on 2008-10-11, 11:29:33 (68.222.64.188)
Farmer for thirty years. Raise and sell 100% grassfed beef now. Started as an ME in college...changed to Agronomy. .......

260: Bottlehead Forum, RE: OT Guitar Amp Noise (0.00)
Posted by RPMac on 2008-08-15, 06:17:44 (68.222.75.36)
Don't know if this will help(mostly over my head), but I found the site interesting...particularly the Triode Gain Stage. Helped me understand tubes better...lots of explanation. .......

261: Tube DIY Asylum, Realistic 12au7 (0.00)
Posted by RPMac on 2008-08-11, 14:19:42 (72.147.197.143)
Who manufactured Realistic Lifetime tubes? .......

262: Bottlehead Forum, RE: speakers (0.00)
Posted by RPMac on 2008-08-09, 07:17:47 (70.152.116.49)
Hope one of them is FP I/II conversion to active crossover schematic.;>D .......

263: Bottlehead Forum, OT computer? (0.00)
Posted by RPMac on 2008-07-22, 07:53:55 (68.222.117.92)
Suggestions for free network remote control software for desktop with ethernet connection? .......

264: Bottlehead Forum, VoltSecond's High line voltage solution (0.00)
Posted by RPMac on 2008-07-03, 05:50:31 (68.19.171.132)
Richard, here is the link. http://www.siteswithstyle.com/VoltSecond/DIY_Autoformer/DIY_line_adjust.html .......

265: Bottlehead Forum, RE: Help with step down transformer for my Paramounts. (0.00)
Posted by RPMac on 2008-06-30, 09:31:33 (72.147.251.80)
Richard, if you understand house safety grounding, then apply those same standards to this. I understand housing and commercial AC electronics far better than audio electronics. I will never dispute P .......

266: Bottlehead Forum, RE: Help with step down transformer for my Paramounts. (0.00)
Posted by RPMac on 2008-06-30, 05:56:39 (72.147.251.80)
Richard, it is really as simple as the diagram in the link, but don't try it if you are not comfortable with it. I did this based on Buddha's Afterglow article in Valve where he described the buck/boo .......

267: Bottlehead Forum, RE: Balanced power (0.00)
Posted by RPMac on 2008-06-30, 04:53:59 (72.147.251.80)
With high input voltage, you have the same high output voltage with balanced power. .......

268: Bottlehead Forum, RE: High voltage solution (0.00)
Posted by RPMac on 2008-06-28, 13:45:05 (68.222.72.164)
Go to http://www.geofex.com/ Under the regular feature's column on the left, go to "Tube guitar amp tech pages" Then go to "Vintage AC power" Voltsecond has a similar solution(and, of course, more ela .......

269: Bottlehead Forum, RE: No, But... (0.00)
Posted by RPMac on 2008-06-20, 13:25:34 (72.147.249.29)
So bypassing with teflon KK caps is the better route? Thanks Robert .......

270: Bottlehead Forum, RE: I Would Try These: (0.00)
Posted by RPMac on 2008-06-20, 11:34:08 (72.147.249.29)
Granger, have you tried the power supply films? I have the copper/al 10uF films in my PGIIs. Like'm!! .......

271: Bottlehead Forum, RE: I'm not a REAL doc... (0.00)
Posted by RPMac on 2008-06-17, 11:12:29 (68.19.160.189)
but I did stay in a Holiday Inn Express once. It's your boat, Doc...float it any way you want because that is the American way! My worthless opinion is that anyone that appreciates the artistry of mu .......

272: Bottlehead Forum, RE: Doc had a delay mute on his Paradox prototypes (0.00)
Posted by RPMac on 2008-04-25, 10:41:53 (72.147.227.34)
If I understand correctly, the pop is cause by arcing in the output tube...does this switch protect the tube? .......

273: Bottlehead Forum, RE: 2A3C Pops on Start-up (0.00)
Posted by RPMac on 2008-04-24, 11:25:12 (72.147.227.34)
My NOS RCA 2A3s pop on start-up, but not my Sovtek or Valve Art. The RCAs didn't do it until I did the Paraglow 2 mod...could this be an issue with 6N1P drivers? .......

274: Bottlehead Forum, RE: Forte II might be a little different (0.00)
Posted by RPMac on 2008-04-19, 15:56:50 (72.147.227.34)
In my crossover, the coil is in series(in the signal path) with the voice coil, where the capacitor, that Bob says has little effect, is paralleled with the voice coil. It's my understanding that a co .......

275: Bottlehead Forum, RE: Forte II might be a little different (0.00)
Posted by RPMac on 2008-04-19, 07:06:39 (72.147.227.34)
One problem with the Klipsch forum, most haven't done the best mod I did to my Klipsch...adding Bottlehead amps!!! ;>D I've read that about the bass cap over there...maybe I'll get rid of the iron cor .......

276: Bottlehead Forum, RE: OK, I've committed (0.00)
Posted by RPMac on 2008-04-18, 06:23:54 (68.222.72.41)
I have heresys, but I think these mods are essential... Dampen the horns with rope caulk or plumber's putty...I believe this takes out most of the "harshness" some people find offensive with horns. Th .......

277: Bottlehead Forum, RE: balanced power???? (0.00)
Posted by RPMac on 2008-02-22, 07:47:40 (70.157.19.122)
Thanks, Matts. One other change I've made was the addition of a balanced power supply. Wonder if that would have any effect? Only problem with the switch is that I already have a WAF problem with on/o .......

278: Bottlehead Forum, RE: Well documented under the TJ Meshplate mod... (0.00)
Posted by RPMac on 2008-02-19, 11:50:24 (68.222.72.13)
I've read about that, but thought it was just a problem with the meshplates...didn't think RCAs had the same problem. Before I did the PG II mod, I had used the RCAs almost exclusively with no problem .......

279: Bottlehead Forum, PG II tube pop (0.00)
Posted by RPMac on 2008-02-19, 11:32:41 (68.222.75.57)
The other day I decided to roll power tubes. I have been listening to sovtek 2a3s for about a year and wanted to reaffirm why I liked them. First I put in the Valve Arts...no problems, but still liked .......

280: Bottlehead Forum, RE: Does a speaker not loading some frequencies free up amp power for the rest? (0.00)
Posted by RPMac on 2008-02-05, 09:37:03 (72.147.251.227)
"I have a partially formulated plan to incorporate such a crossover into a Foreplay, using a FET for the bass channel and the Foreplay cathode follower for the treble channel."--PJ We are anxiously wa .......

281: Bottlehead Forum, RE: Speaker Suggestions? (0.00)
Posted by RPMac on 2008-01-12, 06:10:04 (70.152.108.205)
For a time, I had my mother-in-laws Herseys to A-B with my modified Herseys. The mods definitely improved the sound, but the best was with both playing. .......

282: Bottlehead Forum, RE: Any reasons not to combine a Foreplay & Seduction on one chassis? (0.00)
Posted by RPMac on 2008-01-11, 06:16:51 (68.222.73.195)
I've though of doing this with my FP and Paraglows to shorten the signal path and get rid of the interconnects. .......

283: Bottlehead Forum, RE: Electro Voice 12TRXB or SP12B (0.00)
Posted by RPMac on 2008-01-11, 06:13:26 (68.222.73.195)
What are your thoughts on SP12B open baffle? .......

284: Bottlehead Forum, Paraglow II Sovtek 2A3 (0.00)
Posted by RPMac on 2007-12-12, 10:35:53 (68.222.74.63)
Need to put my RCAs back in!? .......

285: Bottlehead Forum, RE: Climax Crossover question (0.00)
Posted by RPMac on 2007-12-10, 07:48:06 (68.19.172.248)
Hey Paul, the extent of my design abilities is limited to reading SIMPLE schematics and following Bottlehead instructions...but trying to learn. My idea was for an active xover that would work with a .......

286: Bottlehead Forum, RE: Climax Crossover question (0.00)
Posted by RPMac on 2007-12-09, 09:11:30 (72.147.252.143)
I have "one short wire -> crossover -> three long wires(braded Cat5) -> drivers(Heresy II)". I don't know if the POTENTIAL superiority is the wiring or the three Auricaps upgrade...I'm thinking the ca .......

287: Bottlehead Forum, RE: No need to get defensive at all (0.00)
Posted by RPMac on 2007-10-29, 10:37:20 (70.157.19.190)
Did the tweaks to my Heresy IIs...well worth doing. Plumber's putty. Used 1.5 Auricaps in mid and tweeter xover. Added bracing to sides, top, bottom, and back panels...and increased stuffing...took th .......

288: Bottlehead Forum, RE: eatwild (0.00)
Posted by RPMac on 2007-09-30, 19:58:44 (70.157.16.165)
A point of interest...the rise in chronic health problems (heart disease, cancer, diabetes) in the USA parallels the increase in the amount of processed food in our diet. To learn more, check out eatw .......

289: Bottlehead Forum, RE: Pete, Thanks . . . (0.00)
Posted by RPMac on 2007-08-16, 13:21:05 (70.152.116.8)
Will an "accident" blow both fuses? .......

290: Bottlehead Forum, Paraglow II__high voltages (0.00)
Posted by RPMac on 2007-07-24, 06:32:53 (68.19.146.28)
Paul, I wired in a 6.3v 6A filament trans (Standard Transformer P-4089) to the primary of the balance transformer. Output is now 119-121v with FP2 and two Paraglows. I plugged a 500 watt shop light fo .......

291: Bottlehead Forum, RE: 6N1P filament (0.00)
Posted by RPMac on 2007-07-20, 12:49:14 (68.222.113.143)
With my high wall voltage, it's putting out 6.6v...no load.;>) .......

292: Bottlehead Forum, 6N1P filament (0.00)
Posted by RPMac on 2007-07-20, 11:00:39 (68.222.113.143)
Does a 6V 800mA wall wart have enough reserve to heat one 6N1P tube? .......

293: Bottlehead Forum, RE: Here's my other problem.... (0.00)
Posted by RPMac on 2007-07-19, 06:20:46 (65.12.40.166)
My wall voltage is 125-126VAC. Looking at my voltages when I installed the PG II upgrade with wall input...388-0-388. DC voltages were essentially the same. Looking back to the initial build, I brough .......

294: Bottlehead Forum, RE: Paraglow II__high voltages (0.00)
Posted by RPMac on 2007-07-18, 14:17:11 (65.12.40.166)
When I installed the boards(well over a year ago)they trimmed out just fine. I'm sure I exceeded its range now trying to adjust the voltage that didn't change. I'll replace the chip. Is there any prob .......

295: Bottlehead Forum, Paraglow II__high voltages (0.00)
Posted by RPMac on 2007-07-17, 20:04:19 (65.12.40.166)
Here are the voltage readings... AC in...125-127VAC PT...390-0-390VAC 2.5 fil...2.7VAC 6.3 fil...7.2VAC B+...464 2A3 Plate...440 Grid...163 Cathode...206 6N1P V1 Plate...163 Cathode...2.4 6N1P V2 Plat .......

296: Bottlehead Forum, RE: Thanks nt (0.00)
Posted by RPMac on 2007-07-14, 05:50:49 (68.222.71.96)
nt .......

297: Bottlehead Forum, RE: Paramour I Cap Values (0.00)
Posted by RPMac on 2007-07-12, 10:19:04 (68.222.71.96)
Thanks, Paul, it will have to be the 10uF in an Obbligato. I have 3.3uF Jensens in my FPII and thinking of trying 2.2uF Obbligatos(closer to stock value). Any advantage or just a different flavor cap? .......

298: Bottlehead Forum, RE: Paramour I Cap Values (0.00)
Posted by RPMac on 2007-07-12, 08:57:57 (68.222.71.96)
PGII;MQ EXO-03 30H and MQ EXO-36 2.5k gives 9.6uF Obbligato 6.8uF or 10uF with Kilpsch Hersey II?? .......

299: Bottlehead Forum, RE: shunt regulated PG II (0.00)
Posted by RPMac on 2007-05-24, 06:04:49 (68.222.113.101)
Can shunt regulation for the output stage of Paraglow II work? .......

300: Bottlehead Forum, Re: No grid stopper in PGII (0.00)
Posted by RPMac on 2007-02-26, 09:19:36 (70.144.217.127)
PJ & Doc didn't put them in, but the Buddhafied Afterglow has them...I figure I'm save either way;>) Other than some loss of gain, what would be the difference in sound? .......

301: Bottlehead Forum, Re: No grid stopper in PGII (0.00)
Posted by RPMac on 2007-02-24, 07:59:51 (68.222.74.238)
Should I add them? .......

302: Bottlehead Forum, Re: Oscillation (0.00)
Posted by RPMac on 2007-02-24, 07:57:37 (68.222.74.238)
Should I add grid stoppers? .......

303: Bottlehead Forum, Re: Bill's Audio Cave (0.00)
Posted by RPMac on 2007-02-24, 07:51:08 (68.222.74.238)
I picked up a 1KVA trans off ebay I wired it 120V in > 60-0-60 out. My system: CD source > FPII > PGII > Klipsch Heresy The FPII(stock) came from ebay with ground issues..got it working, but still had .......

304: Bottlehead Forum, Re: Thanks, Paul. Am I better off to order (0.00)
Posted by RPMac on 2006-12-30, 08:07:11 (68.19.172.23)
Stock 2000 Paraglow MQ PGP 8.1 MQ EXO-36 MQ EXO-03 MQ RGC-6 3.3 mfd 630V cap .......

305: Bottlehead Forum, Re: ? transformer...balanced power (0.00)
Posted by RPMac on 2006-12-08, 06:35:28 (68.222.71.192)
PJ, I have a 1KVA stepdown trans I intend to try as a 60-0-60 balanced power supply.(understanding that the rating should be halved to 500VA) What VA rating would a FPII and ParaglowIIs require? ::: T .......

306: Bottlehead Forum, Re: wow, brasil '66 (0.00)
Posted by RPMac on 2006-12-08, 05:58:33 (68.222.71.192)
The asset/curse of a Bottlehead system is it reveals the good, the bad, and the ugly. The good gets better, the bad gets worse, and the ugly...well, some things need to get broken! Herb Alpert and the .......

307: Bottlehead Forum, Re: ditto (0.00)
Posted by RPMac on 2006-11-30, 16:39:36 (68.222.70.200)
Thanks, Doc .......

308: Bottlehead Forum, Re: 13D5 Tube Rules the Roost in Foreplay 3 (0.00)
Posted by RPMac on 2006-11-25, 05:51:11 (68.222.70.200)
I bought some Mullard CV4003 after Doc talked about them and they haven't come out of my FP1...how do these compare? .......

309: Bottlehead Forum, Re: USB DAC (0.00)
Posted by RPMac on 2006-11-18, 05:39:13 (70.152.116.84)
What are the chances for a USB DAC upgrade/add-on later? .......

310: Bottlehead Forum, Re: HV on PS caps (0.00)
Posted by RPMac on 2006-11-04, 13:21:25 (68.222.75.165)
Rick, I hope you are right on the cap voltage ratings. The readings in the list were taken with Art Valve 2A3 with the amps playing in the system. Thanks for your help! .......

311: Bottlehead Forum, Re: The Amps Are Playing (0.00)
Posted by RPMac on 2006-11-04, 13:16:19 (68.222.75.165)
Grainger, the readings in parentheses are book readings from the Paraglow manual. I have installed John Tucker's Paraglow II upgrade, so not sure if some would change...particularly the driver voltage .......

312: Bottlehead Forum, Re: The Amps Are Playing (0.00)
Posted by RPMac on 2006-11-03, 12:01:16 (68.222.75.165)
The amps are playing now, but I lost both original C4S boards before I upgraded to John's PGII boards. I was wondering if I should find some 500V caps and if the higher voltages will have a detrimenta .......

313: Bottlehead Forum, HV on PS caps (0.00)
Posted by RPMac on 2006-11-01, 16:34:10 (68.222.75.165)
My PGIIs have 488V and 466V on the two 450V power supply caps...should I be concerned? Thanks .......

314: Bottlehead Forum, Re: Another Cap ? (0.00)
Posted by RPMac on 2006-09-05, 07:34:58 (72.147.227.234)
Will a 470uf 450 volt work OK for Paraglow cathode bypass? .......

315: Bottlehead Forum, Re: ditto on the Top quality service! nt (0.00)
Posted by RPMac on 2006-07-08, 08:51:39 (72.147.192.129)
nt .......

316: Bottlehead Forum, Buddhafied Afterglow ) Paraglow II (0.00)
Posted by RPMac on 2006-07-07, 10:21:57 (72.147.192.129)
While I have a Paraglow down, I've decided to look into some tweaks. First, I'm doing JT's Paraglow II upgrade and I've been studying the Buddhafied Afterglow articles. Is there anything in the articl .......

317: Bottlehead Forum, Re: Thanks, Doc! nt (0.00)
Posted by RPMac on 2006-07-05, 17:26:43 (72.147.192.129)
nt .......

318: Bottlehead Forum, Re: also (0.00)
Posted by RPMac on 2006-07-05, 15:10:10 (72.147.192.129)
Terminal 1 and 2 read 152ohm and 161ohm instead of 200ohm as in manual...same with other amp. All others check OK. .......

319: Bottlehead Forum, Re: PG cathode bypass cap trouble (0.00)
Posted by RPMac on 2006-07-05, 15:03:30 (72.147.192.129)
Doc, I just finished resistance check and the 3K wire wound is open. I was using a Sovtek 2a3 single plate...noticed you recommend the 2.5K wire wound for use with the KR single plate. Could or should .......

320: Bottlehead Forum, Re: Assuming that it was an electrolytic, check that it was wired with the correct polarity. nt (0.00)
Posted by RPMac on 2006-07-02, 20:38:38 (70.157.19.76)
Yes, it was the 220 mf 200v electrolytic, but the amp has been working fine for several years. No other signs of excess heat in the adjacent components, but I do remember that amp sounding slightly di .......

321: Bottlehead Forum, PG cathode bypass cap trouble (0.00)
Posted by RPMac on 2006-07-02, 18:14:35 (70.157.19.76)
The cathode bypass cap on one of my Paraglows just smoked its guts out...what should I check out for the cause? Thanks, Robert .......

322: Bottlehead Forum, Re: CV4024 in Paraglow (0.00)
Posted by RPMac on 2006-06-23, 10:48:23 (68.222.74.236)
Thanks, Paul...don't tell my wife I bought some tubes I can't use...right now! Luv the CV4003s in my FP. .......

323: Bottlehead Forum, CV4024 in Paraglow (0.00)
Posted by RPMac on 2006-06-23, 10:03:23 (68.222.74.236)
Is the CV4024 safe in stock Paraglow? .......

324: Bottlehead Forum, Re: Thanks nt (0.00)
Posted by RPMac on 2006-05-26, 05:47:25 (68.222.113.147)
nt .......

325: Bottlehead Forum, Re: Full Range match to Paragolw (0.00)
Posted by RPMac on 2006-05-25, 05:58:36 (68.222.113.147)
Thanks for the response, Paul. I kept coming back to the SEXy type design as my best possible solution.(but didn't know if I knew enough to know if I was correct) A couple of questions... If I go with .......

326: Bottlehead Forum, Full Range match to Paragolw (0.00)
Posted by RPMac on 2006-05-24, 11:17:18 (68.222.113.147)
I have Foreplay>Paraglow driving Klipsch Heresy II(97 spl rated)in 28x14x9 room. I want to try full range(not necessarily single driver...Sexy or array), but would like more volume than I get with the .......

327: Bottlehead Forum, Re: Their advertising (0.00)
Posted by RPMac on 2006-04-07, 10:50:15 (72.147.251.208)
But they have good WAF...hide the little sub behind the couch, the little cubes around the room, 'elevator music' from no where! How is a REAL hifi nut suppose to compete. ;>( .......

328: Bottlehead Forum, Re: DAC question (0.00)
Posted by RPMac on 2006-04-06, 20:56:49 (68.222.75.49)
Thanks for setting me straight. I was reading an article by Steve Deckert where he talked about a moving coil cartridge putting 'life' back into recordings made in SS studio. Wondered if it could be u .......

329: Bottlehead Forum, DAC question (0.00)
Posted by RPMac on 2006-04-06, 10:15:44 (68.222.75.213)
Would it be possible to develop a mechanical digital to analog converter...as in dual moving coil(cartridge?) with one side being activated by the digital signal mechanically connected to another movi .......

330: Bottlehead Forum, Re: While we're citing authority figures (0.00)
Posted by RPMac on 2006-03-31, 13:29:24 (68.19.137.8)
I got one of those braided power cords made-up and hanging over my bench...maybe I should put it on my FP I. Actually I have little doubt it would probably make an improvement...just convinced myself .......

331: Bottlehead Forum, Re: In Deference To Bob... (0.00)
Posted by RPMac on 2006-03-30, 14:43:25 (68.19.137.8)
I'll trust Buddha on power cords...if they make a difference, then your power supply is lacking. Besides, all that power going through those big high dollar cords have to go through that cheap fuse wi .......

332: Bottlehead Forum, Re: I agree nt (0.00)
Posted by RPMac on 2006-03-29, 07:15:45 (68.19.137.8)
A majority of the music I listen to is singer/songwriter acoustical folk/country(broadly defined), but not limited to that. What I hear in "good" recordings is clarity of the sound of each musician, d .......

333: Bottlehead Forum, Re: I agree nt (0.00)
Posted by RPMac on 2006-03-28, 11:45:34 (68.222.71.139)
nt .......

334: Bottlehead Forum, Re: horns and doppler shift... (0.00)
Posted by RPMac on 2006-03-26, 10:27:13 (70.152.107.142)
I've come to believe that all designs have issues and all designs make compromises...and then room acoustics create more issue, particularly when WAF enters into the equation. Maybe DIY speakers is a .......

335: Bottlehead Forum, RCA()Sovtek (0.00)
Posted by RPMac on 2006-03-25, 20:24:54 (68.222.73.25)
Recently bought a pair of new Sovtek 2A3s. They are certainly in the same class as my RCAs...with a little more bass. But at less than half the price of NOS RCAs, they are a no brainer. .......

336: Bottlehead Forum, Re: SEXy vs. BK-16 (0.00)
Posted by RPMac on 2006-03-25, 19:56:40 (68.222.73.25)
The more I research this, the more I believe my thinking is flawed, but here it is... Use fullrange because the ear is most sensitive to 300-3kHz(no crossovers) Use multiple driver to gain more SPL fr .......

337: Bottlehead Forum, Re: SEXy vs. BK-16 (0.00)
Posted by RPMac on 2006-03-25, 07:22:43 (68.222.73.25)
I've been reading this forum long enough that I have gotten the fullrange bug. I've been researching for weeks and am leaning toward what you have done...a SEXy variation. I'm looking to bi-amp...Para .......

338: Bottlehead Forum, Re: OT: Prayers, good karma, positive waves (0.00)
Posted by RPMac on 2006-03-24, 10:17:23 (68.222.73.25)
You should be very proud of your son and convey to him how much we appreciate and thank him for his service to our country to keep us safe and free. God bless and take care of him and all of our men a .......

339: Bottlehead Forum, Re: Forplay II Input Impedance (0.00)
Posted by RPMac on 2006-03-21, 06:25:14 (68.19.160.213)
Thanks...so with my 100K series resistor, my input impedance is 100k to 200k. Slowly learning .......

340: Bottlehead Forum, Re: Forplay II Input Impedance (0.00)
Posted by RPMac on 2006-03-20, 17:16:03 (68.19.160.213)
I wire FP I stock potentiometer in shunt mode with a 100k to selector sw...what is my input impedance? .......

341: Bottlehead Forum, Re: Awesome... but I have one question (0.00)
Posted by RPMac on 2006-03-16, 19:56:32 (68.222.74.113)
Some of us raise beef the way Nature intended...100% forage diet on pasture. Check out eatwild.com .......

342: Bottlehead Forum, Re: Are there any 2A3 brands to avoid? nt (0.00)
Posted by RPMac on 2006-03-14, 05:31:29 (68.222.73.130)
nt .......

343: Bottlehead Forum, Re: old RCA 2A3 (0.00)
Posted by RPMac on 2006-03-08, 10:55:46 (70.157.19.223)
System: CD source >FP I >Paraglows >Klipsch Heresy >relatively live room I only have Valve Art and RCA...I only listen to the RCAs. More open, more detail, more natural. In fact, I'm looking to pick u .......

344: Bottlehead Forum, Re: sweet toy (0.00)
Posted by RPMac on 2006-03-07, 06:58:19 (70.157.19.223)
Very nice, Doc. Did you keep the two stage trigger? Is that an Olympic Arms barrel? Very accurate barrels. I bought a service match AR-15 some 20 years ago for use in High-power National Match Course .......

345: Bottlehead Forum, Re: 6N1P longevity (Paraglows) (0.00)
Posted by RPMac on 2006-02-28, 16:25:28 (72.147.252.52)
I was going to ask how they work in Paraglows, but I think you answered my question. Is there an alternative for a longer lasting tube in PG II upgrade? .......

346: Bottlehead Forum, Re: Thanks, Matts (0.00)
Posted by RPMac on 2006-02-20, 10:12:08 (72.147.192.163)
I hate to ask the subjective question, but will the VT95 sound the same as non-mil spec? I like the sound of my old stock RCAs better than the AVs, but I think I'm losing one. Just looking for replace .......

347: Bottlehead Forum, 2A3 ? (0.00)
Posted by RPMac on 2006-02-20, 08:43:01 (70.152.108.82)
What does VT95 mean? What is the difference between a PG II and 2A3 Paramount? .......

348: Bottlehead Forum, Re: JT could use your positive thoughts right now (0.00)
Posted by RPMac on 2006-02-15, 06:26:10 (68.19.134.78)
JT, sad to hear about your accident...Get Well Soon! .......

349: Bottlehead Forum, Re: Greetings (0.00)
Posted by RPMac on 2006-02-15, 06:20:59 (68.19.134.78)
Rick, I got my Heresy II's about the same time you got yours. The best thing I ever did for them was to drive them with Bottlehead amps(FP I & Paraglows...soon to be PG IIs). You will enjoy!!!! With y .......

350: Bottlehead Forum, Re: What is it you want to upgrade? (nt) (0.00)
Posted by RPMac on 2006-02-09, 06:52:16 (72.147.251.42)
The rope caulk would go around the outside of the horn bodies. The Heresy II has the horns front mounted...this may be a problem with a tight fit getting the horns back in. I used plumber's putty and .......

351: Bottlehead Forum, Re: Sign me up... (0.00)
Posted by RPMac on 2006-02-09, 06:19:05 (72.147.251.42)
I've long known this to be the weak link in my system (albums, turntable and reel to reels were stolen ten years ago...decided to go 'new age' with all CDs before I knew better). What digital inputs? .......

352: Bottlehead Forum, Re: Upgrading my Heresy II's (0.00)
Posted by RPMac on 2006-02-08, 19:38:16 (68.222.74.214)
I think this is what you are looking for. http://forums.klipsch.com/idealbb/view.asp?topicID=14558 The biggest improvements I've made was to add bracing to the enclosure and damping the horns. ::: TOP .......

353: Bottlehead Forum, Re: Break-in question... (0.00)
Posted by RPMac on 2006-01-27, 15:34:45 (68.19.137.30)
Break-in....The amount of time it takes your brain to adjust to how you perceive your music should sound. .......

354: Bottlehead Forum, Re: Still waiting on my PGII upgrade ;^( nt (0.00)
Posted by RPMac on 2006-01-08, 16:03:16 (68.19.134.83)
nt .......

355: Bottlehead Forum, Re: Theoretical Question on Soldering--Do We Listen Through Solder? (0.00)
Posted by RPMac on 2006-01-03, 11:11:36 (68.19.134.83)
What happens to leads in your non-tinned joint when it is heated to solder? They move...if they are of different thickness or type/purity of metal, they move at different rates. The question is...are .......

356: Bottlehead Forum, Re: Doc, check out the recoil on this handgun (0.00)
Posted by RPMac on 2005-12-12, 19:50:47 (68.19.133.145)
I have a gunsmith friend that built a 68 cal muzzle loader. Shoots a one ounce round ball on top of a 35mm film can worth of black powder. Would knock you out from under a tight fitting hat! Robert :: .......

357: Bottlehead Forum, Re: Coupling caps for FP 1 & ParaSex (0.00)
Posted by RPMac on 2005-08-27, 14:11:52 (70.157.5.171)
One other thing, when I run the two pairs parallel, the sound is really good!!!! I think it is an impedance thing, but someone will have to explain it to me. .......

358: Bottlehead Forum, Re: Coupling caps for FP 1 & ParaSex (0.00)
Posted by RPMac on 2005-08-27, 14:06:14 (70.157.5.171)
James, My system...Foreplay I->Paraglows->Heresy II's The Bottleheads are stock except Jensen coupling caps in FP. I actually have two pair of Heresys that I can A-B. Both sets have the same drivers a .......

359: Bottlehead Forum, Re: They say never to bypass output coupling caps (0.00)
Posted by RPMac on 2005-07-10, 06:51:23 (68.222.70.209)
Grainger, The oilers are multistage and I was planning to parallel wire them for 4uf, 6uf, 8uf, then 10uf and see how each worked with my speaker system. Once I decided on the value I liked best, I wo .......

360: Bottlehead Forum, Re: Best place for caps (0.00)
Posted by RPMac on 2005-07-07, 06:34:03 (68.222.69.196)
Grainger, Thanks for responding...yes I was referring to the output coupling cap in the Paraglows. I'm leaning toward putting the Jensens in the FP because that should give the most dramatic change. I .......

361: Bottlehead Forum, Best place for caps (0.00)
Posted by RPMac on 2005-07-06, 15:22:44 (68.19.137.113)
I have a pair of Jensen 3.3uf 630v caps and was wondering whether to replace the green meanies in Foreplay or put them in the Paraglows and put the Solons in the Foreplay? .......

362: Bottlehead Forum, Re: FP III - Wow + question (0.00)
Posted by RPMac on 2005-04-29, 12:27:45 (68.19.137.116)
Doc, is there a need to wait between the shut down of each stage? .......

363: Bottlehead Forum, Re: What speakers are fellow Paraglow owners running? (0.00)
Posted by RPMac on 2005-04-18, 07:26:42 (68.222.71.199)
Heresy IIs(tweaked) and stock Heresy IIs with stock Foreplay and Paraglows. I recently started baby sitting my mother-in-laws stock Heresys while she builds a new house. I had to set up an A/B compari .......

364: Bottlehead Forum, Re: Use a razor knife if you are only doing it occasionally (0.00)
Posted by RPMac on 2005-04-06, 12:22:25 (68.222.64.82)
I use hemostats to hold the wire and scrape the enamel away with a utility knife blade...tin and it's ready to install. Cleanliness is most important factor in getting a good solder/weld joint. I've p .......

365: Bottlehead Forum, Re: Heresey crossover upgrade (0.00)
Posted by RPMac on 2005-04-06, 11:34:55 (68.222.64.82)
Roger, the link is a discussion on the Klipsch board about crossovers. The advice seems to be to replace old caps with quality caps of same values(Hoveland, Jensen, Auricap, Kimber). .......

366: Bottlehead Forum, Re: Heresy Crossover Upgrades (0.00)
Posted by RPMac on 2005-04-04, 06:31:38 (65.12.40.55)
I have Hersey IIs and don't have the autoformer lug change option. I was looking at some 1.5 motor run caps on the squawkers and 1.5 Solens on the tweeters? Also, would a large guage, lower DCR air co .......

367: Bottlehead Forum, Re: Bottlehead and Klipsch Forte? (0.00)
Posted by RPMac on 2005-02-27, 18:27:34 (65.12.40.86)
I was never satisfied with the sound of my Heresy II's until I wired them to some Paraglows. A few tweaks got them sounding really sweet and I still have the Foreplay and Paraglows to modify. ::: TOPI .......

368: Bottlehead Forum, Re: Interesting Idea, Doc! (0.00)
Posted by RPMac on 2005-02-27, 17:44:38 (65.12.40.86)
After I finished my paraglows with a good resistance check, I flipped the switch for the smoke test. First one immediately blew the fuse...the second one did the same. After rechecking wiring and resi .......

369: Bottlehead Forum, Re: Crossover cap ? (0.00)
Posted by RPMac on 2005-02-23, 06:54:23 (68.222.72.87)
Steve, you've been a great help, THANKS! But just a few more questions... Welborne doesn't have a 1.5uf Kimber...what would be the effects of a 1.0uf or 2.0uf? Chokes...big wire, small wire, or ribbon .......

370: Bottlehead Forum, Re: A non-audiophile sanctioned mod... (0.00)
Posted by RPMac on 2005-02-22, 11:16:52 (68.222.74.204)
Paul, thanks for the cotton suggestion...I've been trying that with my wife's ears without any success! ;>D After I get my speakers done, I'll try some things with the Foreplay or a tube DAC. Thanks, .......

371: Bottlehead Forum, Re: Crossover cap ? (0.00)
Posted by RPMac on 2005-02-22, 11:06:28 (68.222.74.204)
Thanks, Steve You're correct, I have Heresy IIs, not Heresy. And you are right about the bass response...I keep telling my wife two La Scalla's would solve all my problems, but she kills that when she .......

372: Bottlehead Forum, Crossover cap ? (0.00)
Posted by RPMac on 2005-02-21, 13:24:19 (68.155.89.109)
My system is CD source>FP>Paraglows>Klipsch Heresy>"live" room. "Live" room- Listening room is 14x28x9; beaded board walls and ceiling; hard wood floors w/two 8x18 area rugs; one long wall is 60% glas .......

373: Bottlehead Forum, Re: Just got my Valve CDs! (0.00)
Posted by RPMac on 2005-02-10, 19:53:36 (68.222.70.91)
Brad, Got both my VALVE CDs Thanks, Robert .......

374: Bottlehead Forum, Re: Copped wire Substitute (0.00)
Posted by RPMac on 2005-02-10, 10:43:02 (68.222.72.198)
Is the wire used in elec. motors the same as magnet wire? .......

375: Bottlehead Forum, Re: VALVE Back Issue CDs are Available Once Again! (0.00)
Posted by RPMac on 2005-02-02, 12:18:29 (68.222.70.195)
Brad, Whenwill you start shipping? Thanks, Robert .......

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