In Reply to: RE: 6V6 Amp Feedback posted by Eli Duttman on December 29, 2016 at 22:02:49:
"I too like "fixed" bias in a PPP setup, as exact setting of each tube's 'idle' current is important. The downside is that grid to ground resistance limit is lower, when "fixed" bias is employed."
Eli, I've converted a number of amps from self- to fixed-bias without changing the grid resistor. It's never created a problem that was discernible either with measurements or by ear. What's the risk of using a higher value grid resistor than recommended by the manufacturer? Note that I'm not talking about values so high they might create a grid leak effect.
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Follow Ups
- RE: 6V6 Amp Feedback - Triode_Kingdom 12/30/1610:45:35 12/30/16 (14)
- RE: 6V6 Amp Feedback - Eli Duttman 11:36:39 12/30/16 (13)
- RE: 6V6 Amp Feedback - Triode_Kingdom 12:48:38 12/30/16 (12)
- RE: 6V6 Amp Feedback - Jim McShane 14:34:44 12/30/16 (10)
- RE: 6V6 Amp Feedback - Triode_Kingdom 00:09:18 12/31/16 (9)
- RE: 6V6 Amp Feedback - Jim McShane 14:05:09 12/31/16 (7)
- RE: 6V6 Amp Feedback - Triode_Kingdom 11:33:35 01/1/17 (6)
- RE: 6V6 Amp Feedback....Start Over Please - sony6060 11:57:34 01/1/17 (5)
- RE: 6V6 Amp Feedback....Start Over Please - PakProtector 07:18:40 01/3/17 (4)
- RE: 6V6 Amp Feedback....Start Over Please - sony6060 07:58:16 01/3/17 (3)
- RE: 6V6 Amp Feedback....Start Over Please - sony6060 16:50:56 01/3/17 (2)
- RE: 6V6 Amp Feedback....Start Over Please - PakProtector 03:28:04 01/4/17 (1)
- RE: 6V6 Amp Feedback....Start Over Please - sony6060 07:42:40 01/4/17 (0)
- RE: 6V6 Amp Feedback - PakProtector 08:24:53 12/31/16 (0)
- RE: 6V6 Amp Feedback - sony6060 13:36:10 12/30/16 (0)