New amp day! Can anyone tell me what circuit this is? I am guessing it is an AB568. Looks to be an early 69... Fender did some wacky stuff back then. Drip edge, Black line, Tube chart all pointed to AB763 in my mind. It sounds fantastic - 2 ceramic oxford - 1 alnico CTS and 1 ceramic CTS I think I am going to leave the circuit as-is for now - I also included what has been done to it that has been documented last year. Looks like the death cap has been removed and a new 3 prong cable has been installed and the Electrolytic capacitors have been replaced. Other than a few cap replacements she looks pretty clean! Enjoy!