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RE: Audio Research D-76 - advice on biasing

Thanks for the input, yes mine is a D76. It has the same 4 1/4 inch sockets for the bias adjustment. I was just not sure what they did. I was hoping that they allowed you to use a 1/4 jack plug to measure the current directly - so it is good to hear that confirmed.

I will check that all the caps have been replaced, and then try to set 50mA or so on all the tubes.

Any thoughts on setting the A/C Balance if I don't have a THD analyser? I thought of putting a sine wave in and checking the amplitudes are equal after the A/C balance pot.

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  Kimber Kable  

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