Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 7015
Brand: Marathon (tubes), Radio-Marathon, N.V. Rave; Amsterdam, Eindhoven
Tube type:  Full-Wave Rectifier gas filled   Power-supply 
Identical to G203
Similar Tubes
Normally replaceable-slightly different:

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 1.8 Volts / If 2.8 Ampere / Direct
Dimensions (WHD)
incl. pins / tip
32 x 112 x 33 mm / 1.26 x 4.41 x 1.30 inch
Weight 37 g / 1.31 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   Bittorf & Funke Röhrentabellen
- - Manufacturers Literature   1935

g203_so.png G203: rtt
Anonymous 10 Collector

Just Qvigstad
G203: own collection
Peter den Boer

Collection of



You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]