Orange Amp Field Guide: OD120 HEAD Series II

OD120 Head Series II

Pictures kindly donated by Martin Eggert

Year: Late 1970's
Model:Overdrive Series Two
Model Number:OR112M
Control Panel Layout:Input - F.A.C. - Bass - Treble - Presence - Gain - Master - Echo Send - Echo Return - Pilot Light - Power - STANDBY SWITCH
Rear Panel Layout:Mains chord(fixed or detachable???) - Mains switch - 2 Fuse holders - Slave Output ??? - Impedance switch - 2 Speaker outputs
Speaker model:N/A
Output:120 Watts
Preamp tubes:2 x 12AX7
Power tubes:4 x EL34
Bias:Fixed bias
Rectifier:solid state
Phase Inverter:1/2 x 12AX7 Cathodyne
Chassis layout:It appears to have a different pcb then the earlier models
Comments:Last amps that were produced before Orange shut down temporarily... Differences from older Overdrives: standby switch, power switch and standby switch look a bit different, fine font used on frontpanel, different handles