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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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RH84 type test amp... for some reason I had the 12AT7 driver stage plates connected together and fed by a single wire from B+.
I decided to wire each triode section to B+ separately with its own wire to see it anything positive would result.
THD @ 1.2W power out dropped from .81% to .70%
THD+N @ 1.2W power out dropped from .88% to .82%
At 1W power output the THD = .60% , which compares favorably to the Mullard 3-3 in terms of power vs. distortion.
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Topic - RH84 test amp: driver stage wiring change = lower THD% - deathtube 667 16:46:39 09/15/16 (15)
- update : AC line changes causing changes in THD% ... - deathtube 667 13:51:11 09/17/16 (1)
- RE: update : AC line changes causing changes in THD% ... - Triode_Kingdom 08:35:10 09/19/16 (0)
- RE: Have you tried the RH circuit with octal driver tubes? - DAK 13:27:59 09/17/16 (1)
- RE: word of caution ... - deathtube 667 14:13:51 09/17/16 (0)
- RE: RH84 test amp: driver stage wiring change = lower THD% - Triode_Kingdom 05:46:10 09/16/16 (3)
- RE: RH84 test amp: driver stage wiring change = lower THD% - deathtube 667 09:45:43 09/16/16 (2)
- RE: RH84 test amp: driver stage wiring change = lower THD% - Tre' 18:22:32 09/15/16 (6)
- RE: RH84 test amp: driver stage wiring change = lower THD% - deathtube 667 19:33:25 09/15/16 (5)
- RE: RH84 test amp: driver stage wiring change = lower THD% - Tre' 20:03:57 09/15/16 (4)
- RE: RH84 test amp: driver stage wiring change = lower THD% - deathtube 667 20:21:57 09/15/16 (3)
- RE: RH84 test amp: driver stage wiring change = lower THD% - gusser 20:38:07 09/15/16 (2)
- RE: RH84 test amp: driver stage wiring change = lower THD% - deathtube 667 09:46:23 09/16/16 (0)
- More: - gusser 20:47:53 09/15/16 (0)
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