Any George Wright AU 70 amp owners out there?AU30?

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grannyring

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Any George Wright AU 70 amp owners out there?AU30?
« on: 22 Jan 2012, 04:56 pm »
I just purchased this amp and wonder if someone can tell me how to bias the tubes. I need the instruction manual and cannot find it online anywhere. Perhaps another owner can email a copy? The amps come with a built in meter and several bias pots, but I have no idea how to do it or what meter reading to target.

Thanks for any help.....