The breakers are easy to find, Digi-key has them.
I don't recall offhand the breaker rating, 15A sounds right... if so then this should be the item. http://www.digikey.com/product-detai...PB192-ND/45076
The pedal board didn't do it, the convenience outlets are wired before the breaker......
Look at the wiring... while the breakers sometimes do fail, it's a good idea to see if anything looks like it could have caused the problem.
if you remember the amp getting bashed on the back , that might explain it also.