# WE20

ID = 4001
Country:
Italy
 Brand: Telefunken Italia, Milano Tube type: Triode-Hexode   Frequency converter   Controlling (mu)
Identical to WE20
Similar Tubes
Other base:
ECH11
Other base and data slightly different:
ECH3

 Base Europe side contact P8A (Au P, 8SC) (Codex=Sao) Top contact with a cap. Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Parallel / series AC/DC Description Data similar as ECH11, base diagram same as CCH1 (It's an ECH11 as glass tube whith P8 base) When replacing the WE20 by an ECH3, note the proper pin assignments.  Text in other languages (may differ) Information source Taschenbuch zum Röhren-Codex 1948/49 WE20: Schaltung Tfk 530 Heribert Jung WE20: A. De Poi\'s collection Alessandro De Poi WE20: Telefunken Werkstattbuch Wolfgang Bauer WE20: RVF-Röhrenbuch-M1,1947 Anonymous 15 Collector from Just Qvigstad

 Usage in Models 2= 1938?? ; 9= 1939 ; 2= 1940? ; 11= 1940 ; 3= 1941? ; 11= 1941 ; 1= 1942? ; 1= 1942 ; 1= 1945?? ; 1= 1945 ; 1= 1946?? ; 2= 1946 ; 2= 1947?? ; 4= 1947? ; 3= 1948?? ; 5= 1949?? ; 1= 1949 ; 1= 1950

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):61
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