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CV456 hydrogen thyratron
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This valve measures 250x100mm overall and has 3 leads |
This is a hydrogen thyratron intended for use as a gas modulator. The valve
carries the markings CV456 KB/W and No. R271 - which is also carried on a tag
inside the valve.
| Filament voltage | 2.5V |
| Filament current | 27.5A |
| Normal peak anode voltage * | 10 to 15kV |
| Normal peak anode current * | 160A |
| Min trigger pulse voltage | 220V |
| Min trigger pulse length | 4µs |
*: At a repetition frequency of 500pps, pulse length 0.6 to 2µs, load resistance
of 37.5 ohms, approx rate of rise of pulse from 10% of max value to 90% of max value:- 600A/µs. The trigger pulse should be 4µs long at the 220V (or higher) level. The source
impedance of the trigger pulse generator should be as low as possible and should not
exceed 5k ohms.
| Lead | Function |
| Yellow | Filament |
| Black | Filament |
| White | Grid |
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