Re: Re: Different output tubes

[apb]

I used some Acetone to reduce the amount of doping by scrubbing with a toothbrush and wiping with a paper towel.

I will try that while running on a 60hz signal.

I tried lacquer thinner also and that may be a little more effective than the acetone.

I don’t see how you can fry a speaker at 1/3 power.