VT20 / 10E/7813 triode
 |
This valve measures 97x40mm overall and has a B4 base. |
| Filament voltage |
2V |
| Filament current |
200mA |
| Max anode voltage |
150V |
| Mutual conductance (A) |
2.25mA/V |
| Anode impedance (A) |
4k ohms |
| Amplification factor (A) |
9 |
| Average anode current (B) |
11µA |
| Optimum load (B) |
9k ohms |
(A) at Va=100, Vg=0
(B) at Va=150, Vg=-7.5
| Pin |
Function |
| 1 |
Anode |
| 2 |
Grid |
| 3 |
Filament |
| 4 |
Filament |
|
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