[captainclock1988]

I unfortunately do not have the service manual, or schematic for the Newcomb Pathfinder Amp, as that was in the original owners manual that came with that unit and that unfortunately went with the unit to the current owner of the unit when I sold it to him a couple of years ago.

I do think maybe I could look it up in Riders or Beitmans or perhaps it was covered in Sam's?

EDIT:

I found the Schematic I had from the Newcomb Amplifier I had, it was on another audio forum I used to frequent.

See the picture below.