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| CV1671Sensibly equivalent¶ to:3A/109A 4021A POVT102 | 
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 |  | The CV1671 is a directly heated triode. The prototype was the 4021A. The old GPO code is POVT102.Reference: Data-sheet. | 
 |   Pin Connections
|  | 1 | 2 | 3 | 4 | |  g1 | f- | f+ | a | 
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 |   Absolute Maximum Operating Conditions¶
|  | Vh | Ah | Va | ra | gm | μ | | 
 | 4.0 | 0.25 | 160 | 2,000 | 3.0 | 6.0 | 
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 Updated October 29, 2017. |  |