15.5mm symbol tube manufactured by Nanchang

The QS30-F is a clear glass symbolic nixie tube that can display the plus and minus signs. It was likely used in measurement systems
Brand / Manfacturer Nanchang
Same Types
Likely Tyes
Symbol height in mm 15.5
Characters / Symbols +,-
Decimal point none
Base / Socket 0
Starting Voltage (typ) 170 V
Maintaining Voltage (typ) 0 V
Current per Segment 0mA
Reccomend Resistor tested at 10kOhm