Mullard CV4004 reliable double triode
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This valve measures 55x20mm and has a B9A base |
See also CV4035 which is the fly lead version of this valve. This valve is based on CV492.
| Heater voltage | 12.6V |
| Heater current | 0.15A |
| Max anode voltage | 330V |
| Max anode voltage (Ia=0) | 550V |
| Max heater-cathode voltage | 200V |
| Max anode dissipation | 1.1W |
| Max cathode current | 20mA |
| Mutual conductance | 1.6mA/V |
| Amplification factor | 95 |
| Anode impedance | 59k ohm |
| Max bulb temperature | 200°C |
| Max shock (short duration) | 500g |
| Max acceleration (continuous operation) | 2.5g |
| Max negative grid voltage | -55V |
| Max peak negative grid voltage | -200V |
| Pin | Function |
| 1 | Anode 2 |
| 2 | Grid 2 |
| 3 | Cathode 2 |
| 4 | Heater |
| 5 | Heater |
| 6 | Anode 1 |
| 7 | Grid 1 |
| 8 | Cathode 1 |
| 9 | Heater centre tap |
