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| CV1159Sensibly equivalent¶ to: | 
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 |  | The CV1159 is a directly heated tetrode based on the S410 and PM14. The UK Navy code was the NR23.Reference: Data-sheet. | 
 |   Pin Connections
|  | 1 | 2 | 3 | 4 | tc | |  g2 | g1 | f | f | a | 
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 |   Absolute Maximum Operating Conditions¶
|  | Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | μ | | 
 | 4.0 | 0.075 | 150 | 75 | - | - | - | 0.23M | 0.87 | 200 | 
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 Updated April 04, 2015. |  |