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KL4

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ID = 1777
       
Country:
Netherlands
Brand:
Tube type:  Vacuum Pentode   Power/Output 
Identical to KL4 = 3P2 = BLP61 = TKL4
Similar Tubes
Normally replaceable-slightly different:
  P226_p8
Other base:
  KL4G ; L227D ; PP2 ; PP2101 ; PP215 ; PP230
Other base and data slightly different:
  P226 ; RES212 ; TL230
First year Feb.1936 Tube leaflet collection E.Erb Nr. 34 Philips-Hefte
First Source (s)
Feb.1936 : Philips Bulletin # D34
May.1936 : Philips Bulletin # F30
Predecessor Tubes KL1_5pin  
Successor Tubes 1939   KL5   DL21  
Base Europe side contact P8A (Au P, 8SC) (Codex=Soo)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.14 Ampere / Direct / Battery =
Tube prices 3 Tube prices (visible for members only)
Information source Babani, International Radio Tube Encyclopaedia   p. 114 & 115
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 202, p. 396
Taschenbuch zum Röhren-Codex 1948/49
kl4.png
KL4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
32_3.png KL4: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
Just Qvigstad 		kl4_spec.png
KL4: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
Usage in Models 1= 1936?? ; 8= 1936? ; 38= 1936 ; 1= 1937?? ; 5= 1937? ; 59= 1937 ; 1= 1938?? ; 9= 1938? ; 52= 1938 ; 6= 1939? ; 49= 1939 ; 1= 1940?? ; 11= 1940 ; 1= 1941? ; 2= 1941 ; 1= 1942? ; 1= 1942 ; 1= 1944 ; 1= 1946? ; 1= 1946 ; 1= 1947? ; 1= 1949
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):251
Museum "Philips Historische Producten"

Collection of

Christian Schaufelberger (CH)
Wolfgang Bauer (A)
Oskar Elm (D)
Danko Tkalec (HR)
Patrice Zeissloff (F)
Reinhard Riek (D)
Trev Levick (D)
Albert Vonarburg (CH)
Francisc VISKY (RO)
Sándor Selyem-Tóth (H)
Peter Pfeiffer (D)
Jacob Roschy (D)
Roland Biesler (D)
Tomasz Szczesniak (PL)
Uwe Rössler (D)
Hartmut Völler (D)
Hannu Alho (FIN)
Tor Steinnes (N)
Collection of a member from FIN
Karl-Heinz Entrich † 7.21 (D)
Karl - Heinz Bossan (D)
 
kl4_675.jpg

KL4
 
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