Western Electric D-156548 UHF “Doorknob” Transmitting Triode
Triode haute fréquence (« bouton de porte »)
Hochfrequenz-Triode (Knopfröhre)

1941.
Small double-ended doorknob-type filamentary air-cooled triode similar to 368A (5 W at 750 MHz).
Used in the 30A Radio Transmitter, which was part of the 1A Altimeter; gave 5 to 20 watts depending on frequency.

 

Hauteur • Height • Höhe : 62 mm • 2" 1/2
Diamètre • Diameter • Durchmesser : 66 mm • 2" 5/8

 

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