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CK3

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ID = 2476
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  OCTODE   Frequency converter   Controlling (mu) 
Identical to CK3
Similar Tubes
Heater different:
  EK3
First year Apr.1938 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Apr.1938 : Daten und Schaltungen moderner ... Röhren; Philips # 2
Mar.1938 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
Predecessor Tubes CK1   EK2  
Successor Tubes 1940   UCH4   UCH21  

Base Europe side contact base P (P8A) (Codex=Seo) Top contact with a cap
Filament Vf 19 Volts / If 0.2 Ampere / Indirect / Series, AC/DC
Literature Taschenbuch zum Röhren-Codex 1948/49   
  ck3.png
  CK3: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
ck3_philips_01.jpg
CK3: Collection TL
Thomas Lebeth

 
25_2.png
CK3: Telefunken Werkstattbuch
Wolfgang Bauer

 
ck3_spec.png
CK3: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 12= 1938 ; 1= 1939?? ; 1= 1939? ; 8= 1939 ; 2= 1940

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):24


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