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506K

Information - Help 
ID = 3305
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 506K
Similar Tubes
Other shape (e.g. bulb type):
  506
Heater different:
  2506
First year 1927 Tube leaflet collection E.Erb Analysis by original leaflets
Predecessor Tubes 2506  
Successor Tubes 1932   1805  
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 4 Volts / If 1 Ampere / Direct
Description

K means "kort" = dutch for "short".
506K is ca. 20mm shorter than the normal 506.
Only this version fits into the Philips Radio Model 2514.

 
Text in other languages (may differ)
Information source Taschenbuch zum Röhren-Codex 1951   Fehler: Daten der 509 angegeben!
Babani, International Radio Tube Encyclopaedia
506k.png
506K: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
John Hupse † 28.9.20     More ...
506k.png 506K: Telefunken Werkstattbuch
John Hupse † 28.9.20

Just Qvigstad 		506_philips_miniwatt1933~~1.png
506K: Philips_Miniwatt 1934 Blackbook
Adrian Riesen
Usage in Models 2= 1928 ; 1= 1929?? ; 1= 1929? ; 5= 1929 ; 1= 1930?? ; 6= 1930? ; 6= 1930 ; 2= 1931? ; 2= 1931 ; 1= 1932?? ; 1= 1935?? ; 1= 1935 ; 1= 1936
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):30

Collection of

Christian Schaufelberger (CH)
Wilhelm Siepe (D)
Patrice Zeissloff (F)
John Koster (NL)
Lázaro Martín Pérez (E)
John Hupse † 28.9.20 (NL)
Aldo Patriarca (CH)
 
dsc08356_1_a.jpg

506K
 
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