GEC MX40 heptode frequency changer
 |
This valve measures 130x45mm overall and has a B7 base. |
| Heater voltage |
4V |
| Heater current |
1A |
| Max anode voltage |
250V |
| Max screen (G3, G5) voltage |
100V |
| Max oscillator anode (G2) voltage |
150V |
| Pin |
Function |
| 1 |
Oscillator anode (G2) |
| 2 |
Oscillator grid (G1) |
| 3 |
Screen grid (G3, G5) |
| 4 |
Heater |
| 5 |
Heater |
| 6 |
Cathode |
| 7 |
Anode |
| TC |
Control grid (G4) |
|
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