aa763 vs ab763 how to tell

[air_bouquet]

I've got a 1967 Super Reverb.

It's going in the shop, and I want to include the schematic along with it but don't know which schematic to print out, the AA763 or the AB763.

How can I determine this?

[Leo_Gnardo]

Why not print out both then you're covered any way it goes.

[The Dude]

1) What Leo said.
2) Any reputable shop can figure out which it is, find it on the interweb, and print it themselves if necessary.
3) The chassis/model number is normally stamped on the tube chart inside the amp.

[air_bouquet]

The tube chart is long gone but I'll print both.

[Enzo]

Have you looked at the schematics to find any differences? it won't matter to a competent tech, who would only be bothered by differences if they specifically affected what he was repairing. In other words if I were replacing the water pump in my 57 Ford, it wouldn't matter if there were two versions of fuel pump that year.

[bob p]

Funny thing, in 57 everyone wanted the Fords, but 60 years later everyone wants the Chevies.

[Enzo]

In either case one would not take a list of socket wrenches you would need to the mechanic. Amp techs don;t need us to bring schematics. Not fer a Fender 763 anything.

[The Dude]

......Amp techs don;t need us to bring schematics. Not fer a Fender 763 anything.

I'll take it a step further:

Amp techs don't need schematics for a Fender 763 anything.

[bob p]

i think most of us could draw that fender circuit from memory.

[1ampman]

A non issue...