Vintage Blue

I’ve made quite a bit of progress in the last couple of days and I feel like I can see the light at the end of the tunnel.  I installed the turret board in the chassis and I finished the wiring on the supply caps, pre-amp, phase inverter, tone controls, ext. amp jack and speaker jacks.  I am using a 1/4″ jack for the main speaker out, so I spent extra time with the schematic to make sure I understood what I was doing.  The typical standby protection will not be there, since I’m using a 1/4″ jack, so I’ve added a 10W, 470 ohm resistor across the 16 ohm output, similar to what Ampeg did on later B15N’s.

Turret board finally installed in the chassis

I believe all that remains is the input jacks, volume controls, and the last connection of the standby circuit.  Before I proceed, I’m going to go back through the amp and double check the wiring I’ve done so far.  I’ve tried to do checks as I completed each stage but a recheck certainly can’t hurt.