CK1903 Engineering Sample
ca. 10mm symbol tube manufactured by Raytheon
The CK1903 is a clear glass endview tube manufactured by Raytheon. It can display the plus and minus sign. This tube is an engineering sample and is very rare, there is also no infomormation available, if there is a series CK1903 tube.
| Brand / Manfacturer | Raytheon |
| Same Types | |
| Likely Tyes | |
| Symbol height in mm | ca. 10 |
| Characters / Symbols | +,- |
| Decimal point | none |
| Base / Socket | SK-136 |
| Starting Voltage (typ) | tested at 170V V |
| Maintaining Voltage (typ) | 0 V |
| Current per Segment | 0mA |
| Reccomend Resistor | 0 |
