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CV3946 / 3WP1Y CRT

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This valve measures 290x75mm overall and has a B12A base |
This is an electrostatic focus and deflection CRT with a GG5 screen (green flash, green afterglow,
medium short persistence 10ms to 100ms)
| Heater voltage | 6.3V |
| Heater current | 300mA |
| Max anode 1 + 3 voltage | 2.75kV |
| Min anode 1 + 3 voltage | 1.0kV |
| Max negative grid voltage | -200V |
| Max heater-cathode voltage | ±180V |
| Max altitude | 30,000 feet |
| Capacitances (max) |
| Ck-all | 5.7pF |
| Cg1-all | 8.7pF |
| Cx1/x1-all | 3.3pF |
| Cy1/y2-all | 2.2pF |
| Cx1-all except x2 | 7.2pF |
| Cx2-all except x1 | 7.2pF |
| Cy1-all except y2 | 4.8pF |
| Cy2-all except y1 | 4.8pF |
| Pin | Function |
| 1 | Heater |
| 2 | Grid |
| 3 | Cathode |
| 4 | Anode 1 |
| 5 | i/c |
| 6 | X1 |
| 7 | X2 |
| 8 | Anode 1 + 3 |
| 9 | Y2 |
| 10 | Y1 |
| 11 | i/c |
| 12 | Heater |
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