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| CV444Sensibly equivalent¶ to:MZ1-75 | 
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 |  | The CV444 is a directly heated triode with an oxide coated filament. The prototypea were the E1954 and the Mullard MZ1-75Reference: Data-sheet. | 
 |   Absolute Maximum Operating Conditions¶
|  | Vh | Ah | Va | | 
 | 10.0 | 2.0 | 1,250 | 
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 Updated November 06, 2014. |  |