There is a really great thread that I found that a guy wrote on a forum about overhauling GA 19's and converting crestlines (not so good) into tweed (muy bueno) Ga 19 rvt's. I sure found this helpful in my tinkering. I have two vintage amps that sound really nice for about $1000 all said and done with parts, etc.Thanks for posting that. I have one of these sitting in my basement. It is in the basement because my wife complained that it smells when on. My father found it at a tag sale for $35 in 1988. I've been meaning to get it overhauled for a few years now. Yours sounds better than what I recall mine sounding like. It also looks a bit better. I'm guessing it probably smells a bit better too!
Nice playing too, BTW.