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UM11

Information - Help 
ID = 272
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Developer: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH 
Tube type:  Mag. Eye, 2 ranges, 4 shadow angles 
Identical to UM11
Similar Tubes
Other base:
  UM35
First year 1940 -- Collector info (Sammler) (T7-42)
First Source (s)
1941 : TR4119-152
Predecessor Tubes UFM11   C/EM2  
Successor Tubes 1952   UM34   UM35  

Base German Steel Y8A, 1938 (Codex=R)
Filament Vf 13 Volts / If 0.1 Ampere / Indirect / Series, AC/DC
Description Ist die Röhre wirklich 1940 auf den Markt gekommen? Nach einigen Modellen zu urteilen ja ... 
Tube prices 12 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
  um11.png
  UM11: Aus Schema-Eisenach-
Egon Strampe
 
um11_a.jpg
UM11: scc
Christian Schaufelberger

 
um11_so.png
UM11: rtt
Michael Schlör

 
um11_spec.png
UM11: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


from Just Qvigstad

Usage in Models 1= 1939 ; 10= 1940? ; 7= 1940 ; 1= 1941?? ; 1= 1941? ; 11= 1941 ; 2= 1942? ; 3= 1942 ; 1= 1946 ; 1= 1947? ; 4= 1947 ; 1= 1948? ; 10= 1948 ; 3= 1949? ; 30= 1949 ; 6= 1950? ; 63= 1950 ; 5= 1951? ; 35= 1951 ; 2= 1952?? ; 8= 1952? ; 18= 1952 ; 1= 1953?? ; 1= 1953? ; 12= 1953 ; 6= 1954 ; 3= 1955 ; 1= 1956?? ; 2= 1957 ; 1= 1959??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):250



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