|
Search of All Forums Enter your search criteria. Click here for tips on using our search |
For Sale Ads |
1: MagneQuest/Peerless Forum, Re: Seth Capacitors ??'s (0.00)
Posted by Carl on 2004-11-05, 08:45:07 (140.185.28.43)
C5 is a double cap. Two 47uF in one case. Its rated for 500 volts. The transformer is 375-0-375 which will give much more voltage than the cap can handle. Likely BOOM, smoke and burn a 240v cap. Never .......
2: Tubes Asylum, Re: Replace EL84 Sovteks in VTL TT-25's? (0.00)
Posted by Carl on 2004-04-23, 08:21:17 (140.185.40.194)
I enjoy RCA EL84's in both the TT25 I had and my current DIY amp. .......
3: Tubes Asylum, Re: Ebay problem. need feedback (0.00)
Posted by Carl on 2004-04-08, 10:35:34 (140.185.40.194)
You should leave feedback. That leaves a record of the transaction or in this case lack of one. If you received your money and all is safe leave neutral discribing the event. If there is a next time f .......
4: DIY HiFi Forum, Re: Joplin- stupid question (0.00)
Posted by Carl on 2004-02-02, 09:39:54 (198.26.74.100)
It is an integrated in that there is a volume control which attenuates the signal before the driver stage and phase splitter for the push pull power tubes. Apparently it is very sensitive - not requir .......
5: Tube DIY Asylum, Re: What do you guys think of the St-70 and the St-35? (0.00)
Posted by Carl on 2004-01-07, 06:48:06 (198.26.74.100)
I use a st-35 based DIY amp and am very pleased with it. New output transformers are $100 a piece from MagnaQuest though. I found a old sca-35 and gutted it. Morgan Jones has a EL-84 schematic also. : .......
6: Tubes Asylum, Re: Tube amp purchase advice (0.00)
Posted by Carl on 2003-12-22, 10:10:34 (198.26.74.100)
Read the posts below: Repair, Upgrade, or Replace Conrad-Johnson MV75a1?? This might give you an idea about used equipment. I have never heard a ST-70 but read many good posts. I bought a Dyanco SCA-3 .......
7: K&K Audio / Lundahl Transformers, Re: K&K phono stage--great kit (0.00)
Posted by Carl on 2003-11-24, 13:40:57 (198.26.74.100)
I use a homebuilt A Loesch phono WE417a with fet, 6gk5 and 5687 into a PP EL84 amp. I use about 3/4 volume. I'm very pleased with it. I would shoot for about 70 db gain depending on the sensitivity of .......
8: Tube DIY Asylum, Re: Hexfreds In Heater Supply. (0.00)
Posted by Carl on 2003-11-18, 14:01:11 (198.26.74.100)
I would recommend using schottky diodes when the voltage is low enough. Or use a snubber with regular diodes. I have not heard of snubbers used with hexfreds. I have just ordered some high voltage sch .......
9: Amp/Preamp Asylum, Re: Tubed pre/power amp matching (0.00)
Posted by Carl on 2003-11-12, 13:22:38 (198.26.74.100)
The amps have different sensitivity. As long as you don't run out of volume travel enjoy the music! .......
10: Bottlehead Forum, Re: Can a passive pre be used with the Seduction? (0.00)
Posted by Carl on 2003-03-13, 06:14:25 (198.26.74.100)
I suggest you go for the basic 4play and once its working fine then try your hand at the Seduction. You will gain experience with the 4play that will help get the most out of the seduction. Then you c .......
11: Vinyl Asylum, Re: what TT with Rega RB arm? (0.00)
Posted by Carl on 2003-02-26, 07:05:29 (206.38.114.100)
investagate the Teres or Redpoint or used VPI Aries .......
12: Vinyl Asylum, Re: Phonostage Upgrade? (0.00)
Posted by Carl on 2003-02-21, 07:02:24 (206.38.114.100)
If you can solder then check out the bottlehead seduction (I built the foreplay and its great). I think Hagerman has a kit also. You should read about the Wright phono also. The CAT SL-1 (I had one) i .......
13: Planar Speaker Asylum, Re: anyone using HK Cit V amp with Quads? (0.00)
Posted by Carl on 2003-02-07, 12:07:27 (198.26.74.100)
I use VTL Tiny Triodes with my Quad 57. I built a little el-84 pp amp which sounds almost as good. I have listened to the Quads using a CJ MV-50. Using a low power tube amp with Quads is a good way to .......
14: Vinyl Asylum, Re:specific suggestions ? (0.00)
Posted by Carl on 2003-02-03, 07:10:42 (206.38.114.99)
You are getting very close to a passive line stage here. Bent Audio and Welborne make volume/switch controls. I used the Welborne passive to make a DIY Loesch phono stage. The volume control is after .......
15: Vinyl Asylum, Re: passive RIAA equalization? (0.00)
Posted by Carl on 2003-01-30, 06:06:23 (206.38.114.100)
The RIAA uses about 20 db of gain for eq. You need to boost the signal from the Shelter 901 much more so the eq can happen. I use a cart with about .5 output (close to what you have) and I use about 6 .......
16: Vinyl Asylum, Re: What's the best arm for Orbe SE? Any suggestions? (0.00)
Posted by Carl on 2003-01-27, 06:43:08 (206.38.114.99)
I had a Rega OL modded 250 on my Orbe which was very nice. Currently I use a upgraded Graham 1.5 which I'm very happy with. I think it might be more important to match your arm to the cartridge you in .......
17: Tube DIY Asylum, Re: need a little help getting rid of a buzz (0.00)
Posted by Carl on 2003-01-24, 06:41:19 (206.38.114.99)
I found the solution. I am using a 6 volt battery for the heaters and it was picking up trash from the PS. I moved the battery and the problem is solved. I think I'm going to shield the heater leads. .......
18: Tube DIY Asylum, need a little help getting rid of a buzz (0.00)
Posted by Carl on 2003-01-23, 11:06:20 (206.38.114.99)
I have a DIY Loesch phono. I have a buzz in the tweeters that comes on at about 1/2 volume and gets louder with less attenuation. If I turn off the PS the buzz disappears. The PS is seperate on a brea .......
19: Vinyl Asylum, Re: Why put a cheap cartridge on a nice TT? (0.00)
Posted by Carl on 2003-01-02, 09:12:38 (206.38.114.99)
I think one should get the best turntable they could afford and then find a tone arm the matches the selected cartridge chosen and then get a phono preamp that has the required gain and sound. Its a c .......
20: Vinyl Asylum, Re: Audio Alchemy Vac-in the Box phono stage, Sorbogel record mat and a few other "newbie" questions (0.00)
Posted by Carl on 2002-12-24, 05:08:13 (206.38.114.99)
I have built a full Bottlehead 4play and think it is great (best purchase yet)! If the Seduction is anything like the 4play which I'm sure of, then learn how to solder and get a Seduction. There is wo .......
21: Vinyl Asylum, Re: Washington, DC area (0.00)
Posted by Carl on 2002-12-11, 06:56:59 (206.38.114.99)
I'm just outside the beltway in Fairfax. I have meet Bruce and there is a local DIY club that I subscribe to but am not very active. Carl .......
22: Vinyl Asylum, Re: Buying from UK (0.00)
Posted by Carl on 2002-11-29, 05:51:33 (206.38.114.100)
I purchased a new Orbe SE from a shop in England two years ago. England has a most favored trade status with the USA and I did not have to pay anything extra, just purchase price and shipping. Customs .......
23: Bottlehead Forum, Thanks (0.00)
Posted by Carl on 2002-11-09, 13:59:16 (207.172.11.148)
So I have to take the grid leak resistor into consideration. Looks like the 75us is off a bit. .......
24: Bottlehead Forum, Riaa formula for 75 us (0.00)
Posted by Carl on 2002-11-08, 11:56:46 (206.38.114.100)
I have a three stage tube phono preamp (Arthur Loesch 417-6gk5-5687 ) and would like to figure out if the 75us is correct. Basic layout is: tube, 75us, decouple cap, grid leak resistor and second tu .......
25: Vinyl Asylum, Re: Some of us don't worship at the shrine of Linn... (0.00)
Posted by Carl on 2002-10-29, 05:39:42 (198.26.74.100)
Its taken 35 years to make the design a decent one. Nothing really great about it but refinement. Look to Lotus if you want cutting edge performance. .......
26: Vinyl Asylum, Re: Best upgrade? (sort of long) (0.00)
Posted by Carl on 2002-10-24, 14:05:31 (198.26.74.100)
If I had your system with $1k to spend I would buy a soldering iron and learn how to solder. Go to the bottlehead site and get a Foreplay preamp (incredible support for those like me who mess up ). Th .......
27: Tube DIY Asylum, source for Schottly 600v SiC diodes (0.00)
Posted by Carl on 2002-10-21, 12:51:37 (198.26.74.100)
Has anyone purchased a few of these. I talked to cree and they want $250 minimum purchase. I'm just looking for some to play with. If you know of a small quantity vendor please let me know. Thanks ::: .......
28: Vinyl Asylum, Re: Has anyone ordered Tom Evans Groove directly shipped to US? (0.00)
Posted by Carl on 2002-10-01, 06:32:35 (206.38.114.100)
A few years ago I ordered a Orbe SE turntable from Walrus in the UK(recommended). There are no customs charges as the UK has favored nation trade status. It is a little scary ordering something expens .......
29: Vinyl Asylum, Re: Here here! I agree. I started with a $40 JVC *nt* (0.00)
Posted by Carl on 2002-08-12, 13:41:35 (206.38.114.99)
I have been reading/researching this board for a few years. In that time I went from a PV-7, AR tt and Grado to DIY tube phono, ORBE, Graham with a Benz. Lots of posts from the Rega/MMF to the expensi .......
30: Vinyl Asylum, Re: Ebay sniping, your opinions... (0.00)
Posted by Carl on 2002-07-29, 06:19:03 (206.38.114.100)
Bidding early only raises the price for whoever is the winner. If I am a buyer I will wait until the last minute and bid my max then. Some times I win. Its just the cheapest way to play the game like .......
31: Tube DIY Asylum, Re: TFE Caps (0.00)
Posted by Carl on 2002-06-26, 05:35:08 (198.26.74.100)
I also would buy 2 pair. serious. .......
32: Tube DIY Asylum, Re: Sorry it wasn't what I meant (0.00)
Posted by Carl on 2002-06-13, 05:52:15 (206.38.114.99)
If the resistor is a large value from the positive of a cap then to ground then the purpose would be to bleed the stored current of the cap (discharge). .......
33: Tube DIY Asylum, Re: Oscillation in Phono Preamp (0.00)
Posted by Carl on 2002-04-26, 05:41:39 (198.26.74.100)
I have a DIY Loesch phono and had a problem with a type of oscillation. Low freq sort of motor boat noise at hign volume and the music would come and go at the same pace at low volume. The plate volta .......
34: Tube DIY Asylum, Re: RIAA Circuit (0.00)
Posted by Carl on 2002-03-25, 06:02:14 (206.38.114.100)
I have been chasing hum for two months. I finally got it Saturday night:) .......
35: Tube DIY Asylum, Re: A-OK on battery bias. (0.00)
Posted by Carl on 2001-12-18, 06:15:54 (206.38.114.100)
I have been using batteries recently in audio. I also build/fly RC airplanes that use Nicads. In audio it seems that the battery never gets discharged only a constant "trickle" charge. It might help t .......
36: Tube DIY Asylum, Thorsten phono pre (0.00)
Posted by Carl on 2001-11-20, 13:36:55 (140.185.40.195)
Just wanted to let you know about the modified Loesch phono pre I'm finishing up. I still want to get rid of a little transformer noise and check out the RIAA accuracy. But man what a nice sounding ph .......
37: Tube DIY Asylum, Re: DIY Under $500 Pre-Amp Kit Survey (0.00)
Posted by Carl on 2001-11-19, 10:07:30 (198.26.74.100)
If you are willing to work off schematics there are many more choices. Do a search on 417a and preamp or 5687 and preaamp - etc. Some will use OPT's others use caps. You will need some kind of case, e .......
38: Bottlehead Forum, Re: Voltsecond - update on plate voltage (0.00)
Posted by Carl on 2001-11-11, 13:57:06 (66.44.70.135)
I'll watch that capital M and use meg from now on. It got a work out in the system and did OK. Going to fine some buzz and hum tonight. Thanks Carl .......
39: Bottlehead Forum, Voltsecond - update on plate voltage (0.00)
Posted by Carl on 2001-11-10, 20:37:17 (66.44.57.214)
I got the plate voltages stable by modifying the value of the resistor following the coupling cap between each stage. The first resistor was 1.5m now 560k, the second stage had 4.7m now 1m. Is the pur .......
40: Bottlehead Forum, Voltsecond - update on varying plate voltage (0.00)
Posted by Carl on 2001-11-08, 06:22:27 (198.26.74.100)
I moved all the capacitors to one channel until more caps arrive. Now I have a 6x4 to 10uf Solen to 10H choke 440uf to 10H choke to 440uf to dropping resistor to 47uf Solen. My B+ is plentiful. I move .......
41: Bottlehead Forum, Re: varying plate voltage (0.00)
Posted by Carl on 2001-11-06, 06:28:37 (206.38.114.100)
I am using a piltron toriod trans 2 x 230-0-230 60ma (dual mono B+). Filtering is LCLC 10H,220 350v, 10H, 220 350v. I have some extra caps so I will try adding to the first stage tonight. I notice if .......
42: Bottlehead Forum, varying plate voltage (0.00)
Posted by Carl on 2001-11-05, 05:58:52 (206.38.114.100)
I am building a 3-stage phono pre. I am getting a loud motor boat kind of noise and have measured the plate voltages in each stage. The last stage varies considerably. If I place a 100k resistor fro .......
43: Bottlehead Forum, Thanks (nt) (0.00)
Posted by Carl on 2001-11-05, 05:46:48 (198.26.74.100)
.......
44: Bottlehead Forum, Re: foreplay, tube beginner (0.00)
Posted by Carl on 2001-10-10, 10:00:23 (206.38.114.100)
I have just about out grown my first box. First it was just a plastic bag, now I think I'm getting in deep(el84 pp amp, 4play pre, 5687 ultrapath pre and now a Loesch phono pre-solder still warm). Lot .......
45: Bottlehead Forum, input impedance (0.00)
Posted by Carl on 2001-09-25, 12:08:50 (206.38.114.100)
I have a set of 10k stepped attenuators. Is there a way to increase the impedance to 100k without replaceing 96+ resistors? I am playing with a 5687 "Ultrapath" using EP 3500's. Battery on the heaters .......
46: Bottlehead Forum, Re: all Bottleheads: please take a moment of silence (0.00)
Posted by Carl on 2001-09-12, 06:15:27 (198.26.74.100)
Its a very sad day. I can see and smell the smoke from the Pentagon. I don't believe anyone I know was hurt yesterday. .......
47: Bottlehead Forum, Re: Foreplay questions (0.00)
Posted by Carl on 2001-08-29, 07:36:17 (198.26.74.100)
The Foreplay is a very good preamp. It doesn't fit my rack very well because of the dimensions. I built it for fun and education. It replaced a passive. It high and everything is on top. It is possibl .......
48: Bottlehead Forum, thanks! (nt) (0.00)
Posted by Carl on 2001-08-20, 05:25:40 (206.38.114.100)
.......
49: Bottlehead Forum, Re: capacitor question - do not understand value (0.00)
Posted by Carl on 2001-08-17, 05:42:03 (198.26.74.100)
What is the value of 8.2nf to either pf or uf. I have seen this on some schematics but not in US suppliers catalogs. Thanks for the link. Now I know .1uf equal 100,000pf. .......
50: Welborne Labs, Re: Reville Passive Pre - How good is it? (0.00)
Posted by Carl on 2001-08-16, 05:34:42 (198.26.74.100)
I have been using the Reveille passive (very high quality and beautiful)and Phonostage for about one year. Recently I built a Foreplay active pre for fun and comparison. The Foreplay is more dynamic a .......
51: Bottlehead Forum, Re: New Foreplay: I didn't expect this! (0.00)
Posted by Carl on 2001-08-03, 06:57:29 (206.38.114.100)
I was using a passive for one year. I built a full Foreplay with some mods and love the dynamics. My amp is a DIY EL84 PP. I am going to build a 5687 WOT using ElectraPrint trans next. I want back th .......
52: Bottlehead Forum, Re: Passive Option for Foreplay? (0.00)
Posted by Carl on 2001-08-01, 05:45:00 (206.38.114.100)
I use a welborne passive with 10k stepped attenuators or a modified Foreplay. If you want to experiment with a passive it is cheap and easy to build one and not mess with the Foreplay. They do sound d .......
53: Bottlehead Forum, Thanks I'll have to try it (nt) (0.00)
Posted by Carl on 2001-07-16, 23:15:59 (207.172.11.148)
.......
54: Bottlehead Forum, Has anyone used battery supply for heaters (0.00)
Posted by Carl on 2001-07-15, 10:41:13 (66.44.64.178)
I noticed that mouser has 6 and 12 volt batteries upto 12 amps. Has anyone used batteries for heating valves? What did it sound like? .......
55: Bottlehead Forum, Re: SET vs Push Pull? (0.00)
Posted by Carl on 2001-07-13, 09:11:21 (198.26.74.100)
I sure would like to build a 417a interstage 300b PP some day. Along with a 5687 OT preamp. .......
56: Inmate Systems, Carl - Happiness is a warm glow (0.00)
Posted by Carl on 2001-07-03, 13:22:00 (206.38.114.99)
Moniker: Carl System Name: Happiness is a warm glow System Rev Date: 2002/12/26/08:57 System Rev IP: 206.38.114.99 Amp: VTL Tiny Triode TT25 Preamp: CAT SL-1 Signature Speakers: Quad ESL 57 CDP: Merid .......
57: Welborne Labs, Re: Reveille Phonostage (0.00)
Posted by Carl on 2001-05-08, 12:13:08 (206.38.114.100)
I use a Benz LO4 with the Reveille phono and passive driving VTL TT25 amps and Quad 57 speakers. Its quiet smooth and transparent. Lots of detail. I'm very pleased with the sound and looks of the unit .......
Found total of 57 records, Query: , Author: Carl in All Forums, Time: 0 sec.