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R80

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ID = 8091
       
Country:
France
Brand: Dario (tubes) - voir aussi La Radiotechnique
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to R80
Similar Tubes
Normally replaceable-slightly different:
  D404 ; DW702 ; F10 ; MO6 ; P455 ; RO4410
First year Mar.1928 Saga of the Vacuum Tube, Tyne page 344
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.3 Ampere / Direct / Specified voltage AC/DC
Dimensions (WHD)
incl. pins / tip		 50 x 106 x mm / 1.97 x 4.17 x inch
Weight 50 g / 1.76 oz
Information source Taschenbuch zum Röhren-Codex 1948/49   Bulletin CHCR no.26, April 2000, p.17
- - Manufacturers Literature   not dated
r80.png R80: Röhrentaschenbuch VT 1962
Jörg Kulbe

Just Qvigstad 		r80dariodatasmall.png
R80: own collection
Peter den Boer
More ...
Usage in Models 6= 1930 ; 2= 1931?? ; 2= 1931
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):10

Collection of

Jörg Seidel (D)
Rudolf Osterkamp (D)
 
darior801.jpg

R80
 
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