| Year: | 1976 or later |
| Model: | OR80 Reverb Combo Vintage |
| Model Number: | OR80R |
| Serial Numbers: | Chassis: 13839 Cabinet: 62089 |
| Control Panel Layout: | Input - F.A.C. - Bass - Treble - H.F.Drive - Gain - Echo Pot - Echo footswitch jack - Pilot Light - Power |
| Rear Panel Layout: | mains chord - Mains selector - 2 Fuse holders - Slave Output - impedance selector - 2 Speaker Outputs (same impedance?) |
| Cabinet: | size? |
| Weight: | |
| Speakers/Load: | (4/8/16Ohms) |
| Speaker model: | 25W Celestion Greenbacks /30w Celestion Greenbacks ("Orange" label) |
| Effects: | Reverb tank on bottom of cabinet, electronics embedded in chassis |
| Output: | 80 Watts |
| Preamp tubes: | 3.5 x 12AT7 (ECC81) I think originally it must have been two ECC83s and two ECC81s... |
| Power tubes: | 2 x EL34 |
| Bias: | Fixed bias |
| Rectifier: | solid state |
| Phase Inverter: | Cathodyne type: 1/2 x 12ax7 |
| Circuit: | This is probably a merge of an OR80 with the Orange reverb schematic that normally has a separate housing. |
| Chassis layout: | The two remaining power tube sockets are used two put 9 pins tubes, so there are four sockets in total for preamp and reverb drive and recovery tubes. |
| Comments: | The Overdrive Reverb amp has a serial no close to the one of this amp. The Overdrive range started from approx. 1976. |