First post. New bassist. Starting out with an upgraded Fender Squier Affinity P Bass. Upgraded tuners, bridge, pickguard, pickups... 1967 Kustom 212 Cab , with pyle drivers. Peavey Mark III 400 bass head. My question is this. The Peavey is currently not working. It blows fuse. I'll be opening up for repairs, Pops is the electronic wiz, and I would like to recap it at the time of repair. I do understand I can get some more head room out of this amp with a higher value cap. I'm looking for info on what Caps to purchase, so I can have parts here when Pops comes to fix. Also, most likely offenders, Out put Transistors? If these arent' expensive, I'd like to have some stuff on hand. We have a pretty good collection of resistors and diodes and such here, but the transistors I am betting we do not have. Any help will be greatly appreciated. I'm currently learning on a little line 6 spider iii 15w/8" guitar amp, so I am highly motivated to get my "new " rig up and running . Thanks all! This is an amazing forum. Rock on!