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ID = 72404
Great Britain (UK)
Brand: GEC, General Electric Co Ltd., GENALEX; London
Tube type:  Solid-State-Diode   Detector 
Identical to GEX00
Similar Tubes
Other class quality (otherwise equal):

Base Wires only.

TV detector suitable for inputs up to 5V rms.

"Similar to the GEX35 with a slightly lower efficiency"

Colour code red/black/black

Text in other languages (may differ)
Information source -- Original-techn. papers.   GEC data sheet April 1952


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