Western Electric 416B Planar Triode Tube  
Written by AnubisTTP on 2008-09-23  


The Western Electric 416B is a gold plated planar triode designed for high frequency transmitters. The 416B has an unusual package with a ring shaped threaded gold contact, which anchors the tube in place when installed. The evacuation nipple is made of metal and located in the bottom of the tube.


Western Electric 416B Tube
Western Electric 416B planar triode.

Western Electric 416 Planar Triode
This view of the underside of the tube shows its unusual base and print location.

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