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ECH71

Country:  Germany      Brand:  Lorenz; Berlin, Zuffenhausen u.a. 
  Tube type:  Triode-Heptode   Frequency converter 
Tube ID = 1420
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Identical to ECH71 = ECH21
First Series   1950 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s) Nov.1950 : Funk-Technik (FT) # 21

Base Loctal-8, B8G (Sylvania, 1938)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If: 0.35 Ampere / -: Indirect / -: Parallel, (AC/DC) /
Tube prices 0 Tube prices (visible for members only)

  ech71.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
d_lorenz_ech71_1.jpg
O.F.
Otto Frosinn

 
ech71.png
Lorenz Empfänger-Röhren , 9. Auflage
Michael Sigmund

 
ech71_data1.png
Lorenz 1950
Robert Schmalstieg

Usage in Models (calculation each 25th of the month)   1= 1949 ; 15= 1950 ; 1= 1951? ; 2= 1951 ; 1= 1955?? ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):   20
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ECH71    

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