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R105

Information - Help 
ID = 18237
       
Country:
Netherlands
Brand: Marathon (tubes), Radio-Marathon, N.V. Rave; Amsterdam, Eindhoven
Tube type:  Current Regulator, Iron in Hydrogen 
  Ca. 1925 up to 1945 rare.
Identical to R105
Similar Tubes
Normally replaceable-slightly different:
  452 ; W20_Ballast

Base Europe 3-Pin B3 (Eu H) (Codex=Eb)
Filament
Description I quer 1 System/A = 1.15 Umax V = 20 
Dimensions (WHD)
incl. pins / tip
33 x 114 x 32 mm / 1.30 x 4.49 x 1.26 inch
Weight 36 g / 1.27 oz
Information source - - Manufacturers Literature   1935
Ballast Tube Handbook, The   
 
r105.jpg
R105
Peter den Boer

More ...
 
r105_sock.png
R105: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

 
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R105: own collection
Peter den Boer


from Just Qvigstad


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