CV1943 vari-mu HF pentode
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This valve measures 85x32mm overall and has an octal base |
| Heater voltage | 6.3V |
| Heater current | 300mA |
| Max anode voltage | 300V |
| Max screen voltage | 125V |
| Max anode dissipation | 2.75W |
| Max screen dissipation | 350mW |
| Mutual conductance (a) | 1.45mA/V |
| Anode impedance (a) | 800kΩ |
| Anode current (a) | 7.0mA |
| Screen current (a) | 1.7mA |
| grid bias for mutual conductance of 2µA/V (b) | -42.5V |
| Capacitances (with conventional shield) | |
| Cag | 0.0035pF |
| Cout | 12.0pF |
| Cin | 5.0pF |
(a) At Va=250V, Vg1=-3V, Vg2=100V, Vg3=0V
(b) At va=250V, Vg2=100V, Vg3=0V
| Pin | Function |
| 1 | n/c |
| 2 | Heater |
| 3 | Anode |
| 4 | Screen grid |
| 5 | Suppressor grid |
| 6 | no pin |
| 7 | Heater |
| 8 | Cathode |
| TC | Control grid |
