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DV27/4

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ID = 15783
       
Country:
Germany
Brand: Spanner GmbH, Marken: Delta Valve, Altron, Neo-Delta; Berlin
Tube type:  Triode, vacuum   Power/Output 
Identical to DV27/4 = B405
First year 1927 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Mar.1927 : Funk Bastler 1927 Heft 13

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.15 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   

dv274_so.png DV27/4: rtt
Anonymous 10 Collector


Just Qvigstad
dv274_kennli1.png
DV27/4: Funk-Bastler 1927, Heft 13
Hartmut Völler

 

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