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previous: Ray Ivers Dave,I would do a c... -- 9/18/2000 12:38 AM

Re: Marshall Amp Prob - Low Bias Current

9/18/2000 1:07 AM
DHuggins	Re: Marshall Amp Prob - Low Bias Current Ray, I had not checked the tube's currents before I did this, but the amp worked fine before (have had it about 4 months). The new tubes draw similiar currents - one is 2 mA "hotter" than the other. They are matched Svetlanas, and I put them in another amp for a cross check - saw approx the same differential-ratio (except at the higher 36-39 mA, proper level). I will check out what you pointed out Thanks a lot! Dave

9/18/2000 1:07 AM

DHuggins

Re: Marshall Amp Prob - Low Bias Current

Ray,

I had not checked the tube's currents before I did this, but the amp worked fine before (have had it about 4 months). The new tubes draw similiar currents - one is 2 mA "hotter" than the other. They are matched Svetlanas, and I put them in another amp for a cross check - saw approx the same differential-ratio (except at the higher 36-39 mA, proper level).

I will check out what you pointed out

Thanks a lot!

Dave

Replies:

Richie{~}==::: Do you have one of the old tubes yo... -- 9/18/2000 4:26 AM