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In Reply to: RE: Any reason I have not seen a fixed bias phono stage??? posted by Triode_Kingdom on December 09, 2014 at 09:40:27
Interstages like low rp tubes but thanks for the idea. Maybe a non interstage phono in the future. The great thing about doing this as a hobby is we can go so far out of the box. I do not have to sell it to anyone, just enjoy the sound that on the albums.
Thanks Tom
Follow Ups:
"Interstages like low rp tubes but thanks for the idea."
A little "sand" will allow you to have your cake and eat it too. The ZVN0545A enhancement mode MOSFET exhibits tiny capacitances. Even WIMPY high R P /low gm types, like the 12AX7, easily drive the little FET. DC couple (a complete "no brainer") ZVN0545A source followers to the wimpy triodes and your interstage trafos will be fed by a low impedance source.
Eli D.
Absolutely
Also the ZVN0545A has no effect on the sonics being a unity gain part.
"
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