Radios antiguas y Radios de Colección
PLAV9D
| Base |
Telefunken base 4 pin
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| Usada en |
Radio/TV-reception etc. |
| Filamento |
Vf 1.25 Volt / If 0.08 Ampere / Direct / Battery = |
| Descripción |
This gridless triode was developed so as not to infringe with the Lee de Forest patent (owner RCA) on the control grid. Instead, the plate close to the filament has influence on the electron flow towards the other plate (anode).
For marking purposes, the upper part of the glass bulb of the PLAV9 tubes was painted blue, at least for a while.
Texto en otros idiomas
puede diferir
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| Literatura |
-- Original prospect or advert
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Just Qvigstad
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PLAV9D: Riepka, Die Röhre, 1926
Anónimo 15 Coleccionista
Mas ...
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| Cumplimiento de datos |
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