Twin Reverb blackface — clean, vibrato channel

1966 Twin Reverb, vibrato channel, bright switch off. AB763 circuit — the silverface amps from 1968 are a different circuit (AC568) and sound it, so the year on the label matters. Volume 3, treble 5, bass 4, no reverb in the capture: put your own on afterwards. It is a clean capture on purpose, meant as a platform for the overdrive captures rather than a sound on its own.