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CVX2223 / G10/241E 'Nomotron' indicator
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This valve measures 64x42mm overall and has a 12 pin base with a central connector |
This is a cold-cathode unidirectional counter and distributor. It has 10 cathodes which can either indicate
the count visually or electrically. Holes in the anode allow the glow discharge to be viewed to provide the visual
indication.
| Anode-cathode breakdown voltage | 280V |
| Anode-transfer electrode breakdown voltage | 280V |
| Anode-cathode maintaining voltage (approx) | 180V |
| Cathode current | 3.7mA |
| Typical operating conditions (up to 5kHz pulse repetition frequency) |
| HT supply voltage | 315 to 345V |
| Transfer electrode bias | 75V |
| Shield bias | 90V |
| Anode load | 24k ohms ± 2% |
| Cathode load | 15k ohms ± 5% |
| Cathode load capacitor | 0.005µF ± 20% |
| Transfer pulse amplitude | 120 ± 15 V |
| Transfer pulse width | 16 ± 4 µs |
| Cathode pulse output | 40V |
| Pin | Function |
| 1 | Shield |
| 2 | Cathode 0 |
| 3 | Cathode 9 |
| 4 | Cathode 8 |
| 5 | Cathode 7 |
| 6 | Cathode 6 |
| 7 | Cathode 5 |
| 8 | Cathode 4 |
| 9 | Cathode 3 |
| 10 | Cathode 2 |
| 11 | Cathode 1 |
| 12 | Transfer electrode |
| Base cap | Anode |
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