GN-5A
25.5mm numeric tube manufactured by STC
The GN-5A is a numeric nixie tube manufactured by STC. It can display the numbers 0-9 and has 25.5mm high digits. Its one of the biggest tubes that STC made. It has a very large base assembly which looks like the base of the russian IN-1 tube. The glass envelope has a black foil tape around it, to give the digits more contrast.
| Brand / Manfacturer | STC |
| Same Types | |
| Likely Tyes | |
| Symbol height in mm | 25.5 |
| Characters / Symbols | 0-9 |
| Decimal point | none |
| Base / Socket | 0 |
| Starting Voltage (typ) | 200 V |
| Maintaining Voltage (typ) | 0 V |
| Current per Segment | 3.5mAmA |
| Reccomend Resistor | 18kOhm @ 200V, 33kOhm @ 250V, 47kOhm @ 300V, 75kOhm @ 400V, according to Datasheet |