CV436 transmitting triode, 13.5V/2.8A heater.
The serial number 31 is written on the valve.
See below for internal details of this valve.
| Heater voltage | 15V |
| Heater current | 3A |
| Max DC anode voltage | 1kV |
| Max pulse anode voltage | 6kV |
| Max anode dissipation | 450W |
| Max peak space current (cw) | 6A |
| Min peak emission | 60A |
| Amplification factor * | 80 |
| Mutual conductance * | 30mA/V |
| Efficiency at 500MHz with 7db gain | 60% |
| Efficiency at 1GHz with 3db gain | 30% |
| Capacitances | |
| Cag | 13.0pF |
| Cgc | 22.0pF |
| Cac | 0.4pF |
*: At Va=1kV, Ia=250mA
Connections: As shown in the main picture, the anode is at the bottom, the grid is the large ring, heater/cathode the smaller ring above and heater the top connection.
| Top and bottom views | 
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| Inside view of the anode block |  |
| Cathode and heater details | 
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| Closeups of the grid | 
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