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   | | The CV1994 is a directly heated CV28 air cooled triode without the cooling fins. Operation at full rating is up to 3 MHz and with reduced ratings is useful up to 60 MHz. The prototypes were the ACT9 and the 3J/121E.Reference: Data-sheet. | 
 |   Absolute Maximum Operating Conditions¶
|  | Vh | Ah | Va | Vg | mAa | | 
 | 16 | 22 | 10,000 | -430 | 170 | 
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 Updated November 24, 2017. |  |