| Manufacturer: | MONROE |
| Model: | 620 |
| AKA: | |
| Year: | 1971 |
| Display: | Nixie Tubes (12+1) |
| Circuits: | TEXAS INSTRUMENTS: TMC01807, TMC1733A, TMC1753, TMC1754 |
| Dimensions: | |
| Power type: | |
| Origin: | Japan |
| S/N: | |
| Owner: | GROTH Gunther |
| Info: | Probably an OEM-copy from CANON |
Internals: display ^
Internals: LSI-chips ^
Brochure ^