First AA165 I've seen. I think they were only produced for a couple months in 1965.
Unfortunately, someone had drilled holes in the front panel (hence the new faceplate), but the circuit appears stock except for a few capacitor subs. I reverted the amp to stock, fixed the wiring on the previously installed 3 prong cord, and replaced the electrolytic capacitors and grid resistors.
I know the AB165 circuit seems to be more popular among guitarists, but I definitely prefer the big fat cleans of the "AA" Bassmans.
