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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: Gain posted by VoltSecond on October 3, 2007 at 20:31:01:
Hi,
Do I read you right??
From the main B+ from the output stage, convert the existing 47 K drop down resistor to 10K, and then put the 24 uF film cap at the juncture of what will be effectively a 94K plate resistor ( 47K plus 47K ) and the new 10K drop down R. Is that correct V.S.??
If so, that would make sense to me. Hell, in the first thread on this, I was congratulating them for having 470K as " swinging good " plate resistor, but 47 K, ten times less, is not too cool at all for swing.
The 'lytic on the 71A cathode needs to become high quality bypassed film.
Hey, what about trying a large bypassed film on the 6SL7 Rk, as I previously suggested. Hell, I'd do one half of a 6SL7 at a mill or less, like Ansano did in his, to get BOTH a higher Rk and Ra, and with this lower current, it gets more swing.
Jeff Medwin
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Follow Ups
- RE: Gain - drlowmu 23:06:53 10/03/07 (0)
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