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ID = 13283
Brand: Radio-Record - Röhrenmarke; Holland
Developer: Radio-Record - Röhrenmarke; Holland 
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to 5XX
Similar Tubes
Normally replaceable-slightly different:
First Source (s)
16.Sep.1935 : Radio-Expres, Netherlands

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =

HF, LF, Det.

Dimensions (WHD)
incl. pins / tip
50 x 95 x 31 mm / 1.97 x 3.74 x 1.22 inch
Weight 42 g / 1.48 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   

h_9.png 5XX
Peter den Boer

Just Qvigstad
5XX: own collection
Peter den Boer

Collection of




This version 5.XX. has no tip, not anymore the metal base and some better electrical values.

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