Cap Job
For a complete electrolytic cap job, you should replace all power supply caps under the dog house, the cathode bypass caps and the bias cap.
The following pics show a completed cap job on a '68 Bandmaster Reverb. The first pic shows three original paper wrapped caps and two old replacement caps. The other two caps sitting on top are from other amps I keep around just for show and tell. Note the blistered membranes. These caps need replacement now!
Restored cap board with new Sprague "Atom"
Blue Cans and 1W flame proof resistors.
100uf/100v bias cap mounted
on small bias board.
Cap
Board Topology Link for 22/35watt Fender amp models
Cap Board Topology Link
for 45/80watt Fender amp models