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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 base P (P8A) (Codex=Sf)
Filament Vf 13 Volts / If 0.2 Ampere / Indirect / Parallel / series AC/DC
Tube prices 1 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
  cf1.gif
  CF1: ficha de valvulas
Getulio Jimenez-Gomez
 
cf1_673.jpg
CF1: Collection JR
Jacob Roschy

 
28_1.png
CF1: Telefunken Werkstattbuch
Wolfgang Bauer

 
cf1_spec.png
CF1: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 8= 1934? ; 61= 1934 ; 3= 1935?? ; 18= 1935? ; 56= 1935 ; 1= 1936?? ; 1= 1936? ; 21= 1936 ; 1= 1937? ; 3= 1937 ; 1= 1938? ; 1= 1940?? ; 4= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):179


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