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CF1

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ID = 1770
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   Universal 
Identical to CF1 = UF1 = VCF1 = S1328 = 13U1_Ultron
Similar Tubes
Normally replaceable-slightly different:
  UHP1018
Heater different:
  EF1
First year Mar.1934 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Feb.1934 : Toute la radio # 1
Jul.1935 : Die Sendung 1935 #7
Predecessor Tubes B2046  
Successor Tubes 1935   CF7  
Base Europe side contact P8A (Au P, 8SC) (Codex=Sf)
Filament Vf 13 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
cf1.gif
CF1: ficha de valvulas
Getulio Jimenez-Gomez
28_1.png CF1: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
Just Qvigstad 		cf1_spec.png
CF1: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
Usage in Models 8= 1934? ; 62= 1934 ; 3= 1935?? ; 23= 1935? ; 60= 1935 ; 2= 1936?? ; 2= 1936? ; 22= 1936 ; 1= 1937? ; 5= 1937 ; 1= 1938? ; 1= 1940?? ; 3= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):193

Collection of

Wolfgang Bauer (A)
Hermann Fleischanderl (A)
Thomas Lebeth (A)
Michael Gnaedig-Fischer (MEX)
Christian Schaufelberger (CH)
Patrice Zeissloff (F)
Jose Luis Villabona Horreo (E)
Georges Werts (B)
Tomasz Szczesniak (PL)
Ottmar Rollmann (D)
Jacob Roschy (D)
 
cf1_673.jpg

CF1
 

Variants

CF1 with globe bulb
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