Am I correct that pin 6 of the phase inverter connects to D not C?
D is correct, Nothing connects to C except a filter cap
The layout diagram shows that C is just a middle point between two filter caps
One end of the bass pot does not connect to anything in the layout diagrams, but appears connected in the wiring schematic. Does it have to be connected in order to function as a rheostat?
It is used as a variable resistor. The top lug connects to nothing or you can connect the top lug and the wiper together. It is the same thing either way
The schematic seems to show shielded cable being used to connect the reverb (send/return). The RCA cables I was planning to use were salvaged from the reverb of a a Fender Frontman. Will they work?
I don't know what you have but reverb cables need to be shielded cables
Do you recommend insulating the input jack(s) from the chassis with the fiber washers, or is that overkill?
No need to do that. The input jack is grounded via the buss that connect all the pots to the chassis so it would not do anything isolating the metal jack
And finally: Bias. Apparently the Princeton was fixed bias and you've modified it to be adjustable. For those of us with a limited concept of bias, where should we set it a.) to start with, and b.) why would we want to ever change it from that?
They both are fixed bias
A stock princeton reverb is Fixed bias
Mine is Fixed adjustable bias
There is a document right above all the hoffman boards on the library page
http://el34world.com/Hoffman/instructions.htmStep 16 and 17 tell you how to fire up the amp for the first time
Topic: Hoffman Princeton Reverb Turret Board (Read 34407 times)