looking for chassis pics for Ampeg B18N
A friend is restoring a '60's B18N I have. He's built around 40 Fender and Marshall clones, has a EEE Engineering degree, but hasn't worked on many Ampegs before.
Off course he has a schematic, but prior repair work to the amp has been less than competent, to the point that he is worried that the wires off of the 4-pin Ampeg connector may not be going to the original places in the circuit.
Could anybody help me with a short tutorial, or link me to some pics that would show where the wiring is 'supposed to go'?
As well, he says the auxillary speaker jack hookup for the B18 looks different from the jack on a B15 schematic. Is the guitar cable jack on the 18 supposed to work in conjunction with the regular connection, or is supposed to work in place of the regular connection?