ZM1041
30mm symbol tube manufactured by Mullard
The ZM1041 is a special character indicator tube with red coating for better contrast. The character height of 30mm makes this tube a companion to numerical indicators like the ZM1040. Its a rare tube, beause it was produced in less numbers as the numerical indicators. This tube was also manufactured by Philips, Tesla and Valvo.
| Brand / Manfacturer | Mullard |
| Same Types | |
| Likely Tyes | |
| Symbol height in mm | 30 |
| Characters / Symbols | +,- |
| Decimal point | none |
| Base / Socket | B13B |
| Starting Voltage (typ) | 170 V |
| Maintaining Voltage (typ) | 140 V |
| Current per Segment | 4.5mA |
| Reccomend Resistor | 6.8kOhm = 4.5mA |
