Chelmer CV4069 reliable double triode
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This valve measures 54x19mm overall and has a 9 lead (B9A/F) base. |
This valve was based on the CV2212. See also CV4068 which is the pinned version. This valve has had wires soldered onto the pins and it has been relabelled CV4069, presumably from a CV4068.
| Heater voltage | 6.3/12.6V |
| Heater current | 600/300mA |
| Max operating anode voltage | 300V |
| Max anode voltage (Ia=0) | 550V |
| Max anode dissipation (per side) | 5W |
| Max heater - cathode voltage | 200V |
| Max peak cathode current | 35mA |
| Max negative grid voltage | -75V |
| Max shock (short duration) | 500g |
| Max acceleration (continuous operation) | 2.5g |
| Mutual conductance * | 2.3mA/V |
| Amplification factor * | 32 |
| Capacitances (per side, in close fitting metal screen) | |
| Cin nom | 2.2pF |
| Cout nom | 2.0pF |
| Ca, g nom | 1.9pF |
| Ca1, a2 | 0.46pF |
| Lead | Function |
| 1 | Anode " |
| 2 | Grid " |
| 3 | Cathode " |
| 4 | Heater |
| 5 | Heater |
| 6 | Anode ' |
| 7 | Grid ' |
| 8 | Cathode ' |
| 9 | Heater centre tap |
