Rangemaster biasing Q

Started by andrew4566, February 09, 2006, 02:32:27 PM

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andrew4566

I have been struggling to bias 2n404a's which measure very low leakage and around 80hfe after subtracting the leakage.

But, after many hours of trial and error and searching here I may have found the issue. The circuit is the negative ground layout from tonepad and the tranny is PNP, R.G. responded in a post that neg ground w/PNP the bias should be 2v at the collector and not 7V. Is this true?

-Andy