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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: RE: CCS for 6SN7 driver tube posted by JKT on June 20, 2016 at 15:07:21:
You may not want to hear this, but in my experience any imbalance, no matter how small, in the two halves of a balanced gain stage will "muddy" the sound. Using SE "halves" there will always be gain differences. No two tubes are identical. The only way in my experience to enforce AC balance is with a differentail pair and the stiffest impedance CCS "tail" you can implement.
I personally would put the voltage gain before PS trafo but having two separate tubes driving the pos and neg of the sine wave will not help with a CCS unless he somehow ties the plates together to same load resistor on the different tubes.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
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- RE: CCS for 6SN7 driver tube - Michael Samra 16:58:19 06/20/16 (0)
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