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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 P8A (Au P, 8SC) (Codex=Seo) Top contact with a cap.
Filament Vf 19 Volts / If 0.2 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Information source Taschenbuch zum Röhren-Codex 1948/49   

ck3.png
CK3: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
    More ...
25_2.png CK3: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

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

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Usage in Models 15= 1938 ; 1= 1939?? ; 9= 1939 ; 2= 1940

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):27

Collection of

 
ck3_philips_01.jpg

CK3
 

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