DUAL BIAS on the back panel allows you to set the bias of output tubes. It is currently
set to 32mV per tube. Use a Digital Multimeter. When changing tubes, always start by
turning the BIAS 1 and BIAS 2 pots fully counter-clockwise, a speaker load connected,
and MVC set to zero. As you turn the BIAS 1 and BIAS 2 pots SLOWLY clockwise, the
tubes with starting drawing current. #Jump back and forth between the two output
tubes and bring them up together. !
MAINS power select is below the AC input jack, switchable between 120VAC and
240VAC. !
FREDRIK & MARTEN AMP SETTINGS
!
MVC Pulled 8,5 (3 o’clock)!
Bass 4!
Middle 7!
Treble 4!
Gain II 10!
Gain I##between 3 and 5!
Presence 0!
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