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B409

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ID = 2471
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode, vacuum   Power/Output 
Identical to B409 = RE134 = P410 = E1 = LP4 = L414_Tungsram = L413 = L415_Tungsram = TB09 = L4180
Similar Tubes
Normally replaceable-slightly different:
  2-409 ; 415L ; 4L15 ; D10/4 ; DT6 ; E4_Kremenezky ; Gigant ; L316 ; LU4A ; M104 ; M94 ; R85 ; S83 ; V409 ; YD4
Other characteristic (electr. data):
  U412
Other base:
  B409_UX4
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 0.15 Ampere / Direct / Parallel, (AC/DC)
Tube prices 1 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
b_409_philips.jpg
B409: Eigene Sammlung
Aldo Patriarca

 
1_17.png
B409: Telefunken Werkstattbuch
Wolfgang Bauer

 
b409_techdat01.png
B409: Philips Röhren Daten 1933
Peter Hoddow


Usage in Models 3= 1925 ; 1= 1926? ; 2= 1926 ; 2= 1927?? ; 1= 1927? ; 8= 1927 ; 4= 1928?? ; 14= 1928? ; 8= 1928 ; 1= 1929?? ; 2= 1929? ; 17= 1929 ; 1= 1930?? ; 3= 1930? ; 22= 1930 ; 2= 1931?? ; 2= 1931? ; 11= 1931 ; 3= 1932?? ; 1= 1932? ; 4= 1932 ; 4= 1933?? ; 4= 1933 ; 2= 1935? ; 1= 1940?? ; 1= 1941?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):124


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