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In Reply to: Re: Re: Pentode driver ? Or how to increase gain... posted by klaus on February 23, 2002 at 13:11:43:
Hello Klaus,So your initial statement
"6SN7 cascode produces around 1:(25+25) gain"
was a bit misleading, since it is related to the
simple differential stage ?I guess, pentode and cascode have high ra, both,
so this might be worth a try.
Pentode gain will be much higher than your estimate of 35.But 200V are too low, since 6as7 requires a swing of at least
120-140V PLUS output voltage swing. I do not see, how that might
work.Best regards,
Michael
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- Re: Re: Pentode driver ? Or how to increase gain... - Michael Appelt 01:18:34 02/24/02 (0)
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