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AF3 Info
Country:  Europe      Brand:  Common type Europe 
  Tube type:  PENTODE   RF/IF-Stage   Controlling (mu) 
Tube ID = 178
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Identical to AF3 = WE33 = A4AMS3 = TAF3 = TF3 = 4H2
Similar Tubes CF3 (Heater different)   VF3 (Heater different)   AF3C (other base)   EF9nT (Heater different)   3172a (other base and data slightly different)  
First Series   Mar.1935 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s) Mar.1935 : Philips Bulletin
Predecessor Tubes RENS1294   AF2   E447  
Successor Tubes 1936 EF5   EF11   EF11_Prototyp  

Base Europe side contact base P (P8A) (Codex=Sf)
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel, (AC/DC) / If: 0.65 Ampere / Vf 4 Volts /
Tube prices 6 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   

  af3_1.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
af3.png
Röhrensammlung
Wolfgang Bauer

 
au25.gif
RTT 1974 (Franzis) 13. Auflage
Martin Renz

 
af3_tech.png
Valvo Röhrendatenblatt
Martin Steyer

Usage in Models   4= 1935?? ; 14= 1935? ; 149= 1935 ; 7= 1936?? ; 25= 1936? ; 276= 1936 ; 2= 1937?? ; 25= 1937? ; 198= 1937 ; 6= 1938?? ; 20= 1938? ; 138= 1938 ; 4= 1939? ; 21= 1939 ; 1= 1940? ; 2= 1940 ; 1= 1941 ; 8= 1945 ; 1= 1946 ; 1= 1947? ; 7= 1947 ; 7= 1948 ; 1= 1949? ; 2= 1949 ; 1= 1950?? ; 5= 1950 ; 1= 1951 ; 1= 1952 ; 1= 9999 ;
Number of Models with this tube   929
Further Information for

AF3    

AF3 (AF3)  (22.07.2007) Reinhard Hanschke Clicks: 141     Replies: 0
Neupreis 1938: 59,00 FFR Lit.:       Catalog der Firma Manufrance von 1938
 
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