The CD-102 nixie tube was made by NEC of Japan. It is a medium-sized tube with the B13B base and form factor common to many nixie tubes. The narrow shape of the anode grid would indicate that this particular tube was a late model.
| Digit size | 16mm |
| Min current | 1.5mA |
| Max current | 3mA |
| Socket | B13B |
Datasheet:
CD-102 Nixie Datasheet