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EF12K

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ID = 2120
       
Country:
Germany
Brand: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Tube type:  Vacuum Pentode   Audio Frequency 
Identical to EF12K
Similar Tubes
Normally replaceable-slightly different:
  KL70716
Other class quality (otherwise equal):
  EF12
Base German Steel Y8A, 1938
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Description Low microphonic version of the EF12. 
Text in other languages (may differ)
Tube prices 9 Tube prices (visible for members only)
ef12s~~1.gif
EF12K: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
st12_1.png EF12K: RTT 1974 (Franzis) 13. Auflage
Martin Renz

Just Qvigstad 		ef12k_dat.png
EF12K: Die Kurzwellen 5.Auflage 1958 Diefenbach Franzis V.
Heinz Höger
Usage in Models 2= 1939? ; 1= 1947? ; 3= 1947 ; 2= 1948?? ; 1= 1948? ; 3= 1948 ; 2= 1949? ; 2= 1949 ; 7= 1950?? ; 10= 1950 ; 2= 1951?? ; 1= 1951? ; 8= 1951 ; 2= 1952?? ; 1= 1952? ; 8= 1952 ; 3= 1953? ; 3= 1953 ; 2= 1954?? ; 2= 1954? ; 6= 1954 ; 1= 1955?? ; 2= 1955? ; 1= 1955 ; 2= 1956?? ; 1= 1960??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):78

Collection of

Jürgen Küting (D)
Wolfgang Eckardt (D)
Hartmut Völler (D)
Collection of a member from D
Jacob Roschy (D)
Otto Frosinn (D)
Klaus Neumann (D)
Tomasz Szczesniak (PL)
Collection of a member from D
Karlheinz Fischer (D)
Karl - Heinz Bossan (D)
Reinhard Riek (D)
Jozef Solyga (PL)
Collection of a member from FIN
Collection of a member from D
Werner Wussow (D)
 
roehre_ef12k_tfk.jpg

EF12K
 

Variants

Glaskolben auf Bakelitsockel
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