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model 20 radio tubes.
exray
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#2

03-31-2011, 02:54 PM
I can't vouch for the static part but the Model 20 uses a pair of 71As in a push-pull configuration for the audio output. What that means is that each tube works individually on each half of the audio cycle. So yes, with one removed (or defective) the audio will not reach maximum power and is likely to sound a bit distorted.

-Bill
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model 20 radio tubes. - by joesdad49 - 03-31-2011, 01:33 PM
Re: model 20 radio tubes. - by exray - 03-31-2011, 02:54 PM



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