14mm symbol tube manufactured by Siemens

The ZM1241 is a clear glass symbol tube manufactured by Siemens. It can display the plus and minus sign and a sine-wave symbol and the Ohm-Sign. This tube was probably used in measurement devices such as multimeters.
Brand / Manfacturer Siemens
Same Types
Likely Tyes
Symbol height in mm 14
Characters / Symbols +,-,sinewave,Ω
Decimal point none
Base / Socket SK-116
Starting Voltage (typ) 170 V
Maintaining Voltage (typ) 140 V
Current per Segment 2mA
Reccomend Resistor 15kOhm @ 170V