NL-8423/6091
20.5 mm numeric tube manufactured by National Electronics
The NL-8423 is a clear glass numeric nixie tube manufactured by National Electronics. It is identical with the B-6091 from Burroughs. This tube has rather large digits with 20.5mm height.
| Manufacturer | National Electronics |
|---|---|
| Characters | 0-9 |
| Character height | 20.5 mm |
| Decimal point | none |
| Base (pinout) | B13B |
| Starting voltage (typ.) | 170 V |
| Maintaining voltage (typ.) | 140 V |
| Current per segment | 2.25 mA |
| Recommended resistor | 12kOhm |
Equivalent tubes are either the exact same type made by a different manufacturer, or models that differ only very slightly from this version (e.g. red coating instead of clear glass).
Similar tubes share electrical and mechanical specifications with this tube, but are not exact replicas.













