Selling a ???77 Musicman Sixty-Five 1x12 combo. This is the earlier, more desirable version with the 12AX7 phase inverter tube and tremolo/reverb effects. No phaser and no built-in distortion. I bought the amp used and was told the 6-way rotary switch on the second channel???s 1st input was added by Paul Rivera (of Rivera amps fame) when he was at Valley Arts Guitars in the late ???70s/early Whitetail, Montana »