Phoenix Gold Phorum

Hi all.

do anyone know where to measure the bias of the m25, m44, m50 and m100 amps? and where do you adjust it?

replyes with pics is much appreciated

Best regards from Denmark

Measure voltage across the output emitter resistors (the big ones near the output transistors) and adjust the yellow trim pots to 50-100uV (not mV). Make sure the amp is cold and no input signal or load connected.