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ER_Moorhead-Edison

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ID = 50759
       
Country:
United States of America (USA)
Brand: Moorhead Laboratories (Pacific); San Francisco
Developer: Moorhead Laboratories (Pacific); San Francisco 
Tube type:  Gas Triode   Detector 
  <1925 very rare. ***
Identical to ER_Moorhead-Edison
First year 1917 bill01a.com
Predecessor Tubes ER_Moorhead-1917  
Successor Tubes R_Moorhead  

Base Edison (candelabra) 12 mm Other combinations of connections
Filament Direct / Battery =
Description

The ER normally has flying leads, but this version has an Edison candelabra base. This version has also been seen without the ER stamped in the plate.

 
 

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