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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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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: A 6Y6GT/6922 P-P Amp with MOSFET Concertina Splitter posted by jyourison on March 28, 2015 at 10:32:15:
Here is the main amp schematic with measurements and good starting values to aim for. I'll post a link to slightly larger images soon.
I set the bias by taking the output tubes into class B cutoff and then backing them out until crossover distortion was gone. The 7 mA current across the 10 Ohm cathode resistors is the sum of plate and screen currents. Output using conservative rms measurements and waveforms is about 7 Watts per channel with 2Vrms since input at 1KHz.
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