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KF3 Info
Country:  Europe      Brand:  Common type Europe 
  Tube type:  PENTODE   RF/IF-Stage   Controlling (mu) 
Tube ID = 562
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Identical to KF3 = TKF3 = BEP61 = S209
Similar Tubes VP2B (other base and data slightly different)   VP2D (other base and data slightly different)   KF3G (other base)   KF3_British (other base)   KF8 (different connections)   2k2m (other base and data slightly different)  
First Series   Feb.1936 Tube leaflet collection E.Erb Analysis by original leaflets (T7, V8)
First Source (s) Jan.1936 : Funk, Die Zeitschrift des Funkwesens 1936 #1
Predecessor Tubes KF2   KF8  
Successor Tubes DF21   DF22_9pin  

Base Europe side contact base P (P8A) (Codex=Su) Top contact with a cap
Filament -: Direct / -: Battery = / If: 0.05 Ampere / Vf 2 Volts /
Description Kappe: g1; Anode: 135V, 2mA; Schirmgitter: 135V, 0,6mA; Steuergitter: -0,5...-15V; Steilheit: 0,65...0,002mA/V 
Text in other languages (may differ)
Tube prices 1 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   

  kf3.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
kf3_a.jpg
JR
Jacob Roschy

 
kf3.gif
Prüfkarte Röhrenprüfgerät W 18N
Jörg Kulbe

 
kf3_spec.png
RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Usage in Models   2= 1936?? ; 7= 1936? ; 27= 1936 ; 6= 1937? ; 24= 1937 ; 5= 1938? ; 37= 1938 ; 35= 1939 ; 11= 1940 ; 5= 1941 ; 1= 1942 ;
Number of Models with this tube   160
Further Information for

KF3    

KF3  (31.10.2005) Alexander Küffer Clicks: 367     Replies: 2
Hallo zusammen, ich besitze aus einem Mil. Gerät einige Röhren mit der Bezeichnung KF3U. Was hat der Buchstabe U für eine Bedeutung? Im Röhrenmuseum ist diese Röhrenbezeichnung noch nicht vorhanden. Vielleicht kennt jemand diese Röhre. PS: Das Gerät wird nächstens angelegt. Mit freundlichen Grüssen. A.Küffer
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