15.5mm numeric tube manufactured by National Electronics

The NL-900 is a numeric nixie tube manufactured by National Electronics. Its nearly identical to the NL-840, but has a flat top making it a bit smaller. There is also an inverted type, the NL-904
Brand / Manfacturer National Electronics
Same Types
Likely Tyes
Symbol height in mm 15.5
Characters / Symbols 0-9
Decimal point none
Base / Socket RTS-14
Starting Voltage (typ) 170 V
Maintaining Voltage (typ) 0 V
Current per Segment 3mA
Reccomend Resistor 8.2kOhm @ 170V, 43kOhm @ 250V, 62kOhm @ 300V