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  1. Minegoto11

    1987x with 3 month old eh 6ca7s bias 10ma apart

    I put a new matched pair of EH 6ca7s in a 1987x that bandmates called the beast, (new preamp tubes as well) after it sat for a few years. The bias was set at 37ma with no issues and the beast was back! I had all the pots changed a few weeks later and the bias was checked, all good... I ran a...

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