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165R4

Information - Help 
ID = 18023
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Current Regulator, Iron in Hydrogen 
Identical to 165R4 = 165R4G

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Ba)
Filament
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
165r4~~1.jpg
165R4: My tubes
Anonymous 413 Collector

 
0_ball_11_46.png
165R4
Emilio Ciardiello

 

from Just Qvigstad

Usage in Models 3= 1935 ; 8= 1936? ; 6= 1936 ; 2= 1937? ; 11= 1937 ; 2= 1940?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):32


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