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1T4T Info
Country:  Hungary      Brand:  Tungsram; Budapest (see also British T.) 
  Tube type:  Vacuum Pentode (without beam power)   RF/IF-Stage   Controlling (mu) 
Tube ID = 2815
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Identical to 1T4T
Similar Tubes 1T4 (Heater different)  
First Source (s) Apr.1949 : Funkschau (FS) 1949, Heft 9
Sep.1948 : Funk-Technik (FT) 1948 #18

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Radio/TV-reception etc.
Filament -: Direct / -: Battery = / If: 0.025 Ampere / Vf 1.4 Volts /

1t4t_1.jpg
RGO
René Goebel

 
594_2.png
Telefunken Röhrenhandbuch
Wolfgang Bauer

 
Usage in Models   2= 1948 ; 1= 1950?? ; 2= 1950? ; 6= 1950 ; 1= 1951?? ; 1= 1951? ; 1= 1951 ; 1= 1952? ; 7= 1952 ; 1= 1953? ; 5= 1953 ; 2= 1954? ; 1= 1954 ; 2= 1955?? ; 1= 1955? ; 1= 1955 ; 2= 1956? ; 8= 1956 ; 6= 1957 ; 3= 1958? ; 4= 1958 ; 1= 1959?? ; 2= 1959 ; 1= 1960 ; 1= 1961 ;
Number of Models with this tube   63
No further Information for

1T4T    

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