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/ManfacturerNational Electronics
Same Types
Likely Tyes
Symbol height (mm)15.5
Decimal pointnone
Starting Voltage (typ)170 V
Maintaining Voltage (typ)0 V
Current per Segment3mA
Reccomend Resistor8.2kOhm @ 170V, 43kOhm @ 250V, 62kOhm @ 300V