In Reply to: I don't get this... posted by Nickel Core on October 16, 2014 at 03:18:42:
High gm valves test all over the place and rarely meet the published specs from my own experience
'The tube is biased via filament bias'
Why not use stacked diodes in the cathode circuit ? I think you will be making the stage a lot more noisy than it should be using the heater supply to provide the bias .
Al
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Follow Ups
- RE: I don't get this... - Al Noakes 03:54:18 10/16/14 (16)
- RE: I don't get this... - Nickel Core 06:12:33 10/16/14 (15)
- RE: I don't get this... - Tre' 08:23:11 10/16/14 (1)
- Forget about the SAND guys... I was speaking metaphorically!! NT - Nickel Core 08:33:05 10/16/14 (0)
- RE: I don't get this... - Al Noakes 06:38:51 10/16/14 (12)
- The money is already spend :) - Nickel Core 06:52:24 10/16/14 (11)
- RE: The money is already spend :) - Al Noakes 11:18:14 10/16/14 (6)
- RE: The money is already spend :) - Nickel Core 11:27:10 10/16/14 (5)
- RE: The money is already spend :) - Al Noakes 12:05:49 10/16/14 (4)
- Yes, a 10K LCR... - Nickel Core 12:08:58 10/16/14 (3)
- RE: Yes, a 10K LCR... - Al Noakes 12:26:06 10/16/14 (2)
- Not so easy to try ;) - Nickel Core 13:39:50 10/16/14 (1)
- OP Impedance ... - Naz 04:34:52 10/17/14 (0)
- RE: The money is already spend :) - Lew 07:10:11 10/16/14 (3)
- RE: The money is already spend :) - Nickel Core 07:52:30 10/16/14 (2)
- Zout will not be negatively affected using Schottky bias (nt) - Naz 04:39:07 10/17/14 (1)
- Ah, thanks... Any clue about how/how much/the theory (always curious).. (nt) - Nickel Core 04:41:14 10/17/14 (0)