13mm symbol tube manufactured by National Electronics

The NL-5866SX is a small clear glass nixie tube manufactured by National Electronics. It can display a plus, a minus and a spiral symbol.
Brand / Manfacturer National Electronics
Same Types
Likely Tyes
Symbol height in mm 13
Characters / Symbols +,-,spiral,sinewave
Decimal point none
Base / Socket RTS-44
Starting Voltage (typ) 170 V
Maintaining Voltage (typ) 0 V
Current per Segment 2.3mA
Reccomend Resistor 10kOhm @ 170V, 33kOhm @ 250V, 47kOhm @ 300V


Images of the digits will follow