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KC4

Information - Help 
ID = 3487
       
Country:
Europe
Brand: Common type Europe tube/semicond.
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Universal 
Identical to KC4 = TKC4
Similar Tubes
Other base and data slightly different:
  HL2_Tungsram ; U210/M
First year 1939 Tube leaflet collection E.Erb Analysis by original leaflets (P9)
First Source (s)
Apr.1938 : Daten und Schaltungen moderner ... Röhren; Philips # 2
Predecessor Tubes KC1_4pin  

Base Europe side contact P8A (Au P, 8SC) (Codex=So)
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   

kc4.png
KC4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †

21_4.png KC4: Telefunken Werkstattbuch
Wolfgang Bauer

More ...

Just Qvigstad
kc4_spec.png
KC4: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

More ...
Usage in Models 2= 1938? ; 1= 1938 ; 2= 1940 ; 1= 1942? ; 1= 1942

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7

Collection of

 
kc4_1.jpeg

KC4
 

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