CV5278 / ZM1020 / Z502M display tube
 |
This valve measures 30x28mm overall and has a 13 pin B13B base |
This display tube operates at 170V with 2mA anode current.
| Pin | Function |
| 1 | n/c |
| 2 | Anode |
| 3 | Cathode 0 |
| 4 | Cathode 9 |
| 5 | Cathode 8 |
| 6 | Cathode 7 |
| 7 | Cathode 6 |
| 8 | n/c |
| 9 | Cathode 5 |
| 10 | Cathode 4 |
| 11 | Cathode 3 |
| 12 | Cathode 2 |
| 13 | Cathode 1 |
