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E428 Info
Country:  Netherlands      Brand:  Philips; - Eindhoven; Netherlands 
  Developer:  Philips; - Eindhoven; Netherlands 
  Tube type:  Triode, vacuum   Universal 
Tube ID = 1696
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Identical to E428 = REN904 = AG495 = A4110
Similar Tubes E428_4pin (other base)   AR4101 (other characteristic (electr. data))  
First Series   1929 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 5-Pin (O5A, B5) (Codex=F)
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel, (AC/DC) / If: 1 Ampere / Vf 4 Volts /
Literature Taschenbuch zum Röhren-Codex 1948/49   

  e428.gif
  ficha de valvulas
Getulio Jimenez-Gomez
e4281.jpg
HS
Heinz Schmidt

 
7_18.png
Telefunken Werkstattbuch
Wolfgang Bauer

 
e428_spec.png
RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models   1= 1929 ; 3= 1930 ; 1= 1931? ; 12= 1931 ; 1= 1932? ; 17= 1932 ; 7= 1933 ; 1= 1934 ;
Number of Models with this tube   43
No further Information for

E428    

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03DecX