FYI I spent some time with an ungooped AC recently. Since you want to learn, I will only provide some pointers to inspire you - at first glance, there's two transistors, a dual opamp, back/back clippnig diodes, so it must be a TS clone, right? Nope, the circuit is very simple, logical, elegant, and original. It's not a copy of any OD out there, unless you consider any feedback loop diode clipper a TS clone, which would be dumb. Anyway, in the AC there is extensive pre-clipping EQ with the Treble/Bass controls coming post-clipping, like a Bassman or vintage Marshall amp - again, logical for extensive tone shaping, but most folks seem to be content with swapping out magic mojo parts instead (all the parts in the AC are what you'd find at Mouser or Small Bear, nothing stupidly esoteric.) No idea on the transistors or opamp since the markings were sanded off.
More info on bass/treble controls can be found by googling "Baxandall".