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B405

Information - Help 
ID = 2744
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode, vacuum   Power/Output 
Identical to B405 = LL25 = A25 = DP4 = DU412 = DV27/4 = L4 = L414 = L415 = M54 = V62 = H_Adzam = P3 = CL975 = DX502 = CL104 = RE114 = RO4206 = U412 = P425 = P414 = TB06 = 2-405 = RE124
Similar Tubes
Normally replaceable-slightly different:
  420LL ; 4B5_Ultron ; 4BFF ; BFF ; C303B ; C306B ; C_Adzam ; D05/4 ; D5 ; D94 ; G405 ; L44 ; LX414 ; OX45 ; P415 ; R77 ; RO4305 ; SP4_Triotron ; TMBF2 ; TMD ; V82
Other base:
  B405_UX
First year 1925 Saga of the Vacuum Tube, Tyne page 421 - and models.

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Specified voltage AC/DC
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   

1_15.png B405: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
daten_b405_philips.png
B405: Philips Verstärkerröhren
Gerhard Heigl

More ...
Usage in Models 1= 1925 ; 2= 1926 ; 3= 1927?? ; 2= 1927? ; 21= 1927 ; 3= 1928?? ; 11= 1928? ; 20= 1928 ; 3= 1929?? ; 9= 1929? ; 39= 1929 ; 1= 1930?? ; 3= 1930? ; 15= 1930 ; 4= 1931 ; 4= 1932 ; 2= 1933 ; 1= 1934 ; 1= 1935

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):145

Collection of

 
b405_a.jpg

B405
 

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