ZM1049
30mm symbol tube manufactured by Tesla
The ZM1049 is a special character indicator tube with clear glass manufactured by Tesla. The tube can display alphabetic letters. The tube is very rare and there is also a red-coated version, the ZM1047. There are similar character tubes like the ZM1043S and the ZM1041S
| Brand / Manfacturer | Tesla |
| Same Types | |
| Likely Tyes | |
| Symbol height in mm | 30 |
| Characters / Symbols | F,G,H,M,NS,T,X,Y,Z |
| 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 |
