ZM1241

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/ManfacturerSiemens
Same Types
Likely Tyes
Symbol height (mm)14
Display+,-,sinewave,Ω
Decimal pointnone
BaseSK-116
Starting Voltage (typ)170 V
Maintaining Voltage (typ)140 V
Current per Segment2mA
Reccomend Resistor15kOhm @ 170V