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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Which vintage DHt tube would be close to 6j5 ? posted by Wojciech on March 17, 2023 at 15:56:20:
Plenty of choice around mu=8. 26, 4P1L, 2P29L, 47, 10Y, 112A, 01A etc.
I would definitely use filament bias with Rod Coleman V9 regs. The easiest above is 2P29L which should give you a worthwhile improvement.
If you need more gain stick a step-up transformer in front of it. I use a Hammond 1140-LN-C in 1:4. That solves the gain problem with DHTs.
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Follow Ups
- Nothing close to mu=20, plenty of mu=8 - andy evans 03:23:11 03/18/23 (3)
- RE: Nothing close to mu=20, plenty of mu=8 - FlaCharlie 13:31:49 03/18/23 (2)
- Well, yes, some odd DHTs with higher mu - andy evans 02:53:55 03/19/23 (1)
- RE: Well, yes, some odd DHTs with higher mu - FlaCharlie 06:50:36 03/19/23 (0)
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