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CV1173Sensibly equivalent¶ to:
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The CV1173 is a medium impedance triode based on the Mullard 354V. Pre CV it was called the NR52.
The reverse carries the Tungsram commercial Type designation of HL4.The wide glass tube envelope is 29 mm in diameter and, excluding the B5 base pins, is 86 mm tall.Reference: Data-sheet. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 |  a | g1 | h | h | k |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | ra | gm | 
| 4.0 | 0.65 | 250 | 11,500 | 3.5 |
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Updated May 20, 2025.
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