*WARNING - I am in NO way, shape, or form an expert on Electrical anything, and this is not meant to be advisory. Do NOT work on your tube amp if you have ANY doubts about your skill level* Hello all, A few weeks back I worked out a trade for one of my amps for this 1968 Bassman plus cash. I’d been jonesing for a Bassman, and it just worked out. It was a bit noisy, so I knew I had to dig in. Took the cab cap off, and sure enough - Filter caps had gone. Now, I’ve biased and done general service on a BUNCH of amps, but never replaced any components. So off to internet land I go to do my research. Also, I considered taking it to a tech and in fact was going to, but I figured at SOME point this is something I NEED to learn. Plus, my next door neighbor is a close friend of mine and an electrician. I figured, worst case I buy him a six pack and have him help. So I ordered the parts online, Rigged up an alligator clip to the chassis to the a 100k resistor and tested with my multimeter every step of the way to make sure the voltage had drained. I tested a LOT, and I mean a LOT. More so than necessary, mainly because I don’t want to die. I went slow and took my time, and an hour or so later, all the filter caps were replaced. Nothing else appeared to need replacement upon visual and ‘tap with a pencil’ inspection, and she is now singing like a bird. Much like the first time I replaced an alternator on a Chevy, the sense of accomplishment was intoxicating. I’m running it into a 4ohm Weber Silver Bell in a 1x12 cab.