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ID = 1944
Country:  Germany      Brand: Valvo Radioröhrenfabrik GmbH; Hamburg
  Tube type:  Triode, vacuum 
Identical to A4100 = REN804 = E415
First year   1928 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 5-Pin (O5A, B5) (Codex=F)
Filament Vf 4 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC) /
Literature Taschenbuch zum Röhren-Codex 1948/49   

Siegmar Mey

A4100: Telefunken Werkstattbuch
Wolfgang Bauer

A4100: Valvo-Röhren-Daten 1934
Jacob Roschy

Usage in Models 4= 1928 ; 6= 1929 ; 1= 1930 ; 1= 1931 ; 1= 1934??
Number of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):13


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