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B424

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ID = 1669
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode, vacuum 
Identical to B424 = A430 = PM3D
Similar Tubes
Normally replaceable-slightly different:
  2-424 ; 4A10_Triode ; 4A15_TKD ; 4B2_Ultron ; 4D ; 4DC ; G424 ; TB24_DarioTriode ; V424
Heater different:
  4H08
Other base:
  B424_UX4
Multiple differences or of other kind:
  B424S
First year 1927 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Tube prices 1 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
ph_b424_.jpg
B424: Leif Ekornrod
Leif Ekornrod

 
1_19.png
B424: Telefunken Werkstattbuch
Wolfgang Bauer

 
b424_spec.png
B424: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 5= 1927 ; 2= 1928?? ; 2= 1928 ; 1= 1930?? ; 7= 1930 ; 2= 1931 ; 5= 1932 ; 1= 1933? ; 2= 1933 ; 1= 1934 ; 1= 1935

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):29


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