| Year: | 1978 |
| Model: | Overdrive |
| Model Number: | OD120??(to be confirmed) |
| Serial Number: | 1xxxx |
| Config: | HEAD |
| Control Panel Layout: | Input - F.A.C. - Bass - Treble - Presence - Gain - Master - Echo Send - Echo Return - Pilot Light - Power Switch |
| Rear Panel Layout: | Mains chord(fixed!) -(no mains switch) - 2 Fuse holders - (no slave output) - Impedance switch - 2 Speaker outputs |
| Cabinet: | size? |
| Weight: | |
| Speakers/Load: | N/A |
| Speaker model: | N/A |
| Effects: | 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 |
| Circuit: | info on OD schematics |
| Chassis layout: | |
| Comments: | This seems to be some kind of export version: no voltage switch(240V only) no slave output Inspection tag: 29 march 1978 |