CV1438 / KT61 beam tetrode
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This valve measures 118x45mm overall and has an octal base. |
| Heater voltage | 6.3V |
| Heater current | 950mA |
| Max anode voltage | 275V |
| Max screen voltage | 275V |
| Max anode dissipation | 10W |
| Amplification factor * | 27 |
| Anode impedance * | 2750 ohms |
| Mutual conductance * | 10.5mA/V |
| Capacitances |
| Cge | 17.5pF |
| Cae | 0.8pF |
| Cag | 1.2pF |
*: At Va=Vg2=250, Ia=40mA
| Pin | Function |
| 1 | n/c |
| 2 | Heater |
| 3 | Anode |
| 4 | Screen grid |
| 5 | Control grid |
| 6 | no pin |
| 7 | Heater |
| 8 | Cathode |
See EL33
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