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451

Information - Help 
ID = 1683
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Full-Wave Rectifier gas filled   Power-supply 
  Ca. 1925 up to 1945 rare.
Identical to 451
Similar Tubes
Normally replaceable-slightly different:
  1004 ; G203 ; GG4 ; L13 ; R200 ; R200_Record ; R215_Record ; R44
First year 1926 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Mar.1929 : Funk Bastler 1929, Heft 9
Dec.1930 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 1.8 Volts / If 2.8 Ampere / Direct / Specified voltage AC/DC
Dimensions (WHD)
incl. pins / tip		 x 105 x 32 mm / x 4.13 x 1.26 inch
Weight 39 g / 1.38 oz
Tube prices 1 Tube prices (visible for members only)
Information source Röhren-Vademecum; P.H. Brans; Antwerpen   p. 128
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia
451_so.png 451: rtt
Anonymous 10 Collector
More ...
Just Qvigstad 		451_data.png
451: Valvo Röhrentaschenbuch 1957
Anonymous 10 Collector
More ...
Usage in Models 1= 1926?? ; 3= 1926? ; 2= 1926 ; 1= 1927?? ; 1= 1927? ; 6= 1927 ; 1= 1928? ; 4= 1928 ; 3= 1929?? ; 3= 1929 ; 1= 1931?? ; 1= 1931? ; 1= 1934??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):28

Collection of

Thomas Lüthe (D)
Roland Biesler (D)
Andreas Schultz (D)
Nikolaus Löwe (D)
Pedro Prieto-Castro (E)
Collection of a member from FIN
Christian Schaufelberger (CH)
Heinz Schmidt (D)
Klaus-Dieter Dietzel (D)
Cristian Wolkenstein (RA)
 
451_1.jpg

451
 
Forum contributions about this tube
451
Threads: 1 | Posts: 1
Hits: 3026     Replies: 0
451 (451)
Roland Biesler
12.Oct.11 		  1
451 (451) 

Bild von der Originalverpackung mit Hinweis auf die techn. Daten.

  

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451
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