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Old 10th Jan 2007, 11:56 am   #24
Merlin
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Join Date: Apr 2006
Location: Shrewsbury, Shropshire, UK.
Posts: 67
Default Re: making an audio output triode...

Sounds good. When you test it, can you please push it towards clipping and show some photos of the waveform?
By the way, here's some explanation from someone else: (I don't know who to believe!)
"There is nothing in that circuit to set the tube current to a reasonable bias point on the curves, so what you get depends on the beta of the transistor. So you get some undetermined tube characteristic cascaded with with the current to voltage characteristic of a transistor, which has never sounded good as an audio amp. If you overload it, you get the clipping of a transistor."
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