The CD28 is a small end view nixie tube made by Rodan-Okaya of Japan. It is unusual in several respects. First it has a side-nipple rather than one on the base. Second it has a unique pin arrangement – the TSM-13P.
| Digit size | 12mm |
| Average current | 1.8mA |
| Base | TSM-13P |
There are several tubes in the same family – the GR-707 and the GR-772
Datasheet:
1970_D4512-AA-1