CV2257 cold cathode gas filled triode
 |
This valve measures 30x7mm overall and has a 3 lead base |
| Control gap breakdown voltage | 75V |
| Control gap maintaining voltage | 55V (a) |
| Main gap breakdown voltage | 215V |
| Main gap maintaining voltage | 77V (a) |
| Transfer current | 5µA (b) |
| Max mean cathode current | 1mA |
| Operating time | 30µsec |
| Extinction time | 550µsec (c) |
(a) measured at 1mA
(b) measured with 175V between anode and cathode
(c) time from 1mA cathode current
| Lead |
Function |
| 1 | Grid |
| 2 | Anode |
| 3 | Cathode |
The cathode lead is indicated by a red spot
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