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6F31

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ID = 3628
       
Country:
Czechoslovakia
Brand: Tesla; Praha, Bratislava etc.
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to 6F31 = 6BA6
Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 1 Tube prices (visible for members only)
6au6wah_so~~7.png 6F31: ARRL Handbook 1972
Anonymous 10 Collector

Just Qvigstad 		6f31.png
6F31: Tesla catalogue
Gabriel Toth
Usage in Models 1= 1948? ; 2= 1952?? ; 2= 1953?? ; 1= 1953? ; 5= 1953 ; 3= 1954? ; 1= 1954 ; 2= 1955?? ; 8= 1955 ; 7= 1956 ; 4= 1957?? ; 1= 1957? ; 7= 1957 ; 1= 1958?? ; 1= 1958? ; 17= 1958 ; 1= 1959? ; 3= 1959 ; 1= 1960? ; 4= 1960 ; 2= 1961 ; 1= 1962?? ; 2= 1965??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):77

Collection of

Patrice Zeissloff (F)
Danko Tkalec (HR)
Paweł Banach (PL)
Tomasz Szczesniak (PL)
Collection of a member from SK
Karlheinz Fischer (D)
Felix Kreitlow (D)
 
6f31_tesla_b.jpg

6F31
 
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