ZM1137
14mm symbol tube manufactured by Siemens
The ZM1137 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 |
