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1A1

Information - Help 
ID = 17900
       
Country:
United States of America (USA)
Brand:
Tube type:  Current Regulator, Iron in Hydrogen 
Identical to 1A1
Similar Tubes
Normally replaceable-slightly different:
  5E1

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=B)
Filament
Tube prices 2 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   

577.png 1A1: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
1a1~~1.png
1A1: Sylvania Technical manual
Anonymous 413 Collector

Usage in Models 1= 1935 ; 1= 1937

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

Collection of

 
philco_1a1_front.jpg

 

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