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CV1121Sensibly equivalent¶ to:
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The CV1121 is a Thyratron based on the Mazda T41. The old service code is VGT121.The KB/E identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the E identifies the maker as Thorn-AEI, Brimsdown.
The reverse is plain zinc loaded paint.The classic envelope is 32 mm in diameter, and excluding the MO base pins is 72 mm tall.Reference: Data-sheet. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |  h | k | a | nc | g1 | m | nc | h |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | mAa | f.max | 
| 4.0 | 1.5 | 400 | 500 | 0.02 |
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Updated July 12, 2025.
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