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B415

Information - Help 
ID = 2472
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode, vacuum 
Identical to B415 = DT3 = SD515
Similar Tubes
Other shape (e.g. bulb type):
  B415K_SERIE100
Normally replaceable-slightly different:
  410H ; A410_Valvo
First year 1925 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
b415_philips.jpg
B415: My tubes
Anonymous 413 Collector

 
1_18.png
B415: Telefunken Werkstattbuch
Wolfgang Bauer

 
b415_spec.png
B415: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 1= 1927 ; 2= 1928 ; 1= 1929? ; 9= 1929 ; 2= 1930?? ; 10= 1930 ; 9= 1931

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):34

Collection of a member from FIN

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