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6BG6GA AB1 Valve Amplifier - Part 1. RC coupling, OP stage bias balance.



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Wot it says up there. The 6146A AB2 amp is being converted into a 6BG6GA AB1 amp with much simplified circuitry. I discuss RC coupling in valve amplifiers & balancing the OP stage. Camera memory went, so video ends a bit abruptly. Fear not, we'll carry on with the discussion/waffle in the next exciting episode.
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Audio
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