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R202

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ID = 7109
       
Country:
Netherlands
Brand: Radio-Record - Röhrenmarke; Holland
Developer: Radio-Record - Röhrenmarke; Holland 
Tube type:  Half-Wave Rectifier, gasfilled 
  Ca. 1925 up to 1945 rare.
Identical to R202
Similar Tubes
Normally replaceable-slightly different:
  1002
First year 1927 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Mar.1929 : Funk Bastler , Heft 9

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 1.8 Volts / If 2.9 Ampere / Direct
Description Used in chargers for anode accumulators. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   

r202schematic.png
R202
Peter den Boer

a_3.png R202
Peter den Boer


Just Qvigstad

Collection of

 
r202radiorecord_1_klein.jpg

R202
 

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