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| CV1660Sensibly equivalent¶ to:LS7 POVT82 | 
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 |  | The CV1660 is a directly heated triode. The prototype was the commercial audio output valve LS7. The old GPO code is POVT82.Reference: Data-sheet. | 
 |   Pin Connections
|  | 1 | 2 | 3 | 4 | |  a | g1 | f | f | 
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 |   Absolute Maximum Operating Conditions¶
|  | Vh | Ah | Va | ra | μ | | 
 | 4.0 | 0.15 | 150 | 5,000 | 12 | 
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 Updated October 29, 2017. |  |