Hi guys! I've got a 1974 Super Lead 100 MK II (6550s) - 100% stock (except the hard wired power cord got frayed and was replaced). It was my main amp for years. It's dangerously loud... LOL! It has been retired for a long time because I've gotten other amps and kinda moved on from it. I'm considering using it but I'm nervous because it's so old and such a collector I don't want to risk damage to it. I'd hate to blow a transformer or something that would ruin the originality of it. The thing is - I don't need it. I have 3 other Marshalls that I use. So what would you do?