Absolare Push-Pull User Manual - Page 11

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6.2.1. 845 Bias Levels

You have to adjust left and right 845 tube bias levels separately. Measurement is

done via a multimeter at 2V DC (or 2000mV DC) setting. Insert black (-) probe into

black socket and red (+) probe into one of the green sockets. You should read a

value about 0.45V (450mV) for each tube. If the readings are different, then adjust

the bias level via potentiometers near the EL34 tubes. A small flat screwdriver will be

necessary to access internal bias pots.

ABSOLARE Push-Pull Amplifier User Manual 0.9