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1T4SF

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ID = 27446
       
 
   
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to 1T4SF = 1AJ4

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 1.4 Volts / If 0.025 Ampere / Direct / Battery =
Information source -- Collector info (Sammler)   
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1t4sf_so.png 1T4SF: ARRL Handbook 1972
Anonymous 10 Collector


Just Qvigstad
Usage in Models 1= 1954?? ; 7= 1955?? ; 1= 1955? ; 1= 1956?? ; 1= 1956? ; 1= 1957 ; 1= 1958?? ; 1= 1958?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):14

Collection of

 
1t4sf_a.jpg

 

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