CV171 pentode
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This valve measures 123x45mm overall and has a B4 base. |
The CV specification describes CV171 as a Vari-mu tetrode or pentode. The example here is a pentode. The specification states "This valve is standardised for use in certain equipment which can accept these diverse types. It should not, therefore, be used in any new design."
| Filament voltage | 2V |
| Filament current | 100mA |
| Max anode voltage | 150V |
| Max screen voltage | 60V |
| Mutual conductance (Va=150, Vg2=60, Vg1=0 to -1V) | 1.1mA/V |
| Pin | Function |
| 1 | Screen grid |
| 2 | Control grid |
| 3 | Filament and suppressor grid |
| 4 | Filament |
| TC | Anode |
