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L307

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ID = 14414
       
Country:
Netherlands
Brand: Marathon (tubes), Radio-Marathon, N.V. Rave; Amsterdam, Eindhoven
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to L307
Similar Tubes
Normally replaceable-slightly different:
  A425 ; HR410 ; M350 ; RE034

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 4 Volts / If 0.07 Ampere / Direct / Battery =
Description Detector, HF amplification, LF amplification, resister coupling. 
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1935
 
l307_marathon_1.jpg
L307: Sammlung IM
Anonymous 557 Collector

 
1_10~~1.png
L307: Telefunken Werkstattbuch
Wolfgang Bauer

 
l307data.png
L307: own collection
Peter den Boer


Collection of a member from D

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