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10CV1180243

 
    
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The exhibit is a small disc seal triode very similar to the DET22. The heater and cathode are opposite the main envelope. The grid has a circular connection to the flat internal metal mesh. The anode is copper and has a flat surface facing the grid and positioned very close to it.
The planar envelope is 15 mm in diameter and, overall is 60 mm tall.
Reference: Observation.

 

Updated April 30, 2013.
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