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Marshall JVM410H bias problem
Hi I just try to bias my Marshall 410H, on the right is mesuret to 210mV on it’s lowest setting and 194mV om the left on it’s highest setting. I can’t get the tubs to run at a lower mV. is it bad tubes ore are the head the problem? Please help and thanks.- Kenneth_410H
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- bias problems
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- Forum: Marshall Amps
