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WE D155023 photocell

Size This device measures 35x24mm overall and has 5 leads.

 

This is a special unbased developmental phototube with a 360 degree annular field of view. It may have been the sensing element in infrared aircraft detection equipment being experimented on by the US Army Signal Corps before the development of practical radar, and also in artillery flash detectors. 		D155023

Information provided by Bob Weiss N2IXK

This file was last modified 15:48:39, Saturday November 12, 2011