The older 80's preamps that only have two trims are only for:
Gain; the far right one.
Pick attack; far left one.
The front four knobs are: volume, pan, and a tone knob for each pickup. fyi, three of the knobs pull up.
Oh and 21 fret= Mark I, and 24 fret=Mark II.
Gain; the far right one.
Pick attack; far left one.
The front four knobs are: volume, pan, and a tone knob for each pickup. fyi, three of the knobs pull up.
Oh and 21 fret= Mark I, and 24 fret=Mark II.