18mm symbol tube manufactured by Reflector/Sovtek

The IN-15A is a special-character readout tube. It has the same dimensions as the IN-12A and IN-12B tubes, and was used with them in digital measurement devices like benchtop-multimeters. Another special readout tube is the IN-15B
Brand / Manfacturer Reflector/Sovtek
Same Types
Likely Tyes
Symbol height in mm 18
Characters / Symbols A,F,H,W,S,Hz,Ω
Decimal point none
Base / Socket SK-136
Starting Voltage (typ) 170 V
Maintaining Voltage (typ) 145 V
Current per Segment 3mA
Reccomend Resistor 8.6kOhm = 2.9mA