Hi Leon; I checked out some of the others too. Came pretty close on a vgc Maggie M10A ... an hour's drive south for $550. I spent quite a bit of time prowling the Maggie/Valco site looking for a spec on the varistors ... even cj (that would be the real cj) never mentioned a PN, mfr, ... nothing. I don't know alot about amps but I know enough to know that those varistors are responsible for that sensational vibrato; without which, well, I'm not sure what the amp might have had to distinguish itself. Anyway, have since settled in with tweed-era Gibsons that are within both my tone and technical ranges. Again, welcome to LTG! CJ