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smolder
09-23-2008, 12:37 PM
looking for a 'readable' copy of the cbs version of a champ. The only ones I can find are low resolution and the resistor/capacitor values are not legible.

thnx...

Rosewood
09-23-2008, 12:40 PM
http://www.schematicheaven.com/fenderamps/champ_cbs.pdf

smolder
09-23-2008, 12:46 PM
http://www.schematicheaven.com/fenderamps/champ_cbs.pdf

yep - that's the one that is unreadable. But thanks for the link!

Rosewood
09-23-2008, 12:58 PM
Which part value do you need?

smolder
09-23-2008, 01:10 PM
I am trying to determine the differences between black face and cbs and the '73-84 era that are marked just 'champ' and not champ-amp. I have one from each SF era...

I had read that the circuit was unchanged from 64 - 82, but that appears to be incorrect.

Specifically, the value of the resistors at input look like 68k, 68k and 1M. (obviously just learning about this stuff and not a seasoned tech)

Faustine Amps
09-23-2008, 02:30 PM
I have a full set of high-resolution Fender CBS schematics at home (in PDF format). I'll send you the Champ schematic later tonight.

Regards,
Tim Gregoire

SatelliteAmps
09-23-2008, 04:24 PM
Those are the correct values for the inputs.