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H407spez

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ID = 14267
       
Country:
Germany
Brand: Valvo Radioröhrenfabrik GmbH; Hamburg
Tube type:  TRIODE (Detail uncertain) 
Identical to H407spez = RE074n
First year 1929 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 4 Volts / If 0.06 Ampere / Direct
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
h407spez_valvo_logo.jpg
H407spez: Sammlung
Anonymous 557 Collector

 
h407spez_sock.png
H407spez: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

 
h407spez_daten_kennl.png
H407spez: Valvo Daten Heft 1930
Trev Levick


Collection of a member from D

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