Fender '65 Twin RI later schematics with heater filament fuse - rev F onwards

[mikeydee77]

I would like to see the service manual for the above amp with the later revisions especially the ones with the heater fuse (T10A). I think it goes onto Rev H but maybe there are more.

The schem is mentioned in this thread by Enzo http://music-electronics-forum.com/t30062/ but the PDF is bad

have recently come across two Fender twins with heater problems - heat damaged fuse holder and heat damaged push on 1/4" connectors.

Cheers

[Enzo]

If you are blowing heater fuses, the schematic will not be much help. It is just a fuse in series.

[vintagekiki]

If blowing heater fuses check sockets 6L6 that they did not burn between pin 2 and 3
pin 2 = Heater
pin 3 = Plate

[mikeydee77]

Thanks Enzo glad you were looking! I just want to make sure I am working from the correct info as there is also a toasted resistor in the NFB chain (R39) to check out as well.

[mikeydee77]

will do kiki...

Cheers