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In Reply to: RE: Hammond Galore Part 2-GM70 posted by Eli Duttman on May 29, 2015 at 17:31:56
besides, I live in Florida and would need to add another AC to cool the room.....
Started thinking about all the power supplies as well just to heat a quad set.
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A FL summer should convince you to try the near Class "B" setup Jeff Yourison and I worked on. L_RD knows 6Y6s are cheap enough.
Eli D.
Nice work, that's about 200 less watts of plate dissipation than what I had in mind.
How do you like the pentode sound?
"How do you like the pentode sound?" PM Jeff, as he executed the concept. Everything I've seen from him, to date, is positive. Don't forget that I own a "Deuce" that I'm VERY fond of.
"Nice work, that's about 200 less watts of plate dissipation than what I had in mind." Near Class "B" operating points can be very useful in warm climates. Tweak the "idle" current to obtain a response "free" of notching/cross over distortion. A pair of near Class "B" GM70s would produce plenty of power. You could jack things up even more by employing some positive grid current action (B2).
Eli D.
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