| 
   | 
        
        | 
        
 | 
| CV1223Sensibly equivalent¶ to: | 
 | 
 |  | The CV1223 is a power amplifier triode. The prototype was the M-OV DET5. The old service code is the NT40.Reference: Data-sheet. | 
 |   Pin Connections
|  | 1 | 2 | 3 | 4 | |  a | g1 | f | f | 
 | 
 | 
 |   Absolute Maximum Operating Conditions¶
|  | Vh | Ah | Va | Vg | mAa | ra | gm | μ | | 
 | 4.0 | 2.0 | 600 | - | 62.0 | 1,270 | 7.5 | 9.5 | 
 | 
 Updated April 09, 2015. |  |