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| CV1565Sensibly equivalent¶ to: | 
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 |  | The CV1565 is a directly heated triode based on the Cossor 230XP. The old RAF service code is VT23A.Reference: Data-sheet. | 
 |   Pin Connections
|  | 1 | 2 | 3 | 4 | |  a | g1 | f | f | 
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 |   Absolute Maximum Operating Conditions¶
|  | Vh | Ah | Va | Vg | mAa | ra | gm | μ | | 
 | 2.0 | 0.3 | 150 | -18.0 | 22.0 | 1,500 | 3.0 | 4.5 | 
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 Updated October 23, 2017. |  |