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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: RE: Driving 6Y6GTs with El Cheapo 12AT7 front end? posted by Eli Duttman on April 25, 2013 at 22:06:45:
I assessed my small collection of tubes and found the following triodes on hand that seem to operate at around 100 to 150 for anode voltage and have medium gain. Would any of these work as well as the 6922?
Triodes/Twin Triodes on hand:
Type Va Gain
8532 150 52.5
7062 100/150 50/46 (two sets of values found in the data sheets)
12AV7 150 41
6J6A 100 31
(150V Parallel)
5BK7A 150 45
3GK5 135 78 (higher gain)
6SN7 90-250 20 at 250V (lower gain)
Combination Triode/Pentodes on hand , triode characteristics:
Type Va Gain
5AN8 150 21
5GH8 125 46
The transconductance for these may be lower than the 6922. Is that a big factor? I'm willing to go with the 6922 if necessary, but I thought I'd ask about any of these.
Any insights into how these make good or poor choices for this application would be welcomed. I want to learn.
Thanks!
--Jeff
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Follow Ups
- Would any of these triodes also work? - jyourison 04/26/1317:13:45 04/26/13 (15)
- RE: Would any of these triodes also work? - Eli Duttman 18:08:07 04/26/13 (14)
- O/P Stage - Eli Duttman 08:06:52 04/29/13 (4)
- Bias - Eli Duttman 12:45:52 04/29/13 (3)
- Small Signal Hen Scratches - Eli Duttman 20:11:16 04/28/13 (0)
- B+ PSU Hen Scratches - Eli Duttman 00:36:32 04/28/13 (6)
- RE: B+ PSU Hen Scratches - jyourison 03:32:34 05/6/13 (1)
- RE: B+ PSU Hen Scratches - Eli Duttman 05:44:53 05/7/13 (0)
- Capacitor Value - Eli Duttman 17:50:51 04/28/13 (0)
- RE: B+ PSU Hen Scratches - jyourison 08:48:21 04/28/13 (1)
- RE: B+ PSU Hen Scratches - Eli Duttman 09:41:50 04/28/13 (0)
- Addendum - Eli Duttman 01:30:02 04/28/13 (0)
- RE: Would any of these triodes also work? - Eli Duttman 21:45:46 04/27/13 (0)
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