Looking for Philharmonic Schematic Variations.

[Scott Seickel]

I have both of the Riders versions. 

I am looking for documented circuit variations of the Philharmonic throughout it's production run.  By documented, it could  be a sketch on a napkin you made of a deviation from the Scott schematics that are available.

I would be happy to pay for copying and postage costs, and then some if necessary.  Or, you could e-mail me if possible. 

I have redrawn both Scott schematics (Riders) and am looking to incorporate all known variations. 

[Norman S Braithwaite]

Scott:

Have you identified details of the factory wiring error found in about half of the power amplifiers (grid circuit)?  The error did not affect performance to a significant extent and was therefore not corrected unless maybe when a power amplifier was in for service.

Norman

[Scott Seickel]

Nope.  The error was in the wiring and not the schematic?

[Norman S Braithwaite]

Yes, the error is in the wiring.  When I have time I will pull out a power amplifier and provide details.