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G470

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ID = 3035
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Developer: Triotron (tubes) = Brand of Schrack, Austria 
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
  Ca. 1925 up to 1945 rare.
Identical to G470 = RGN1054 = 506
Similar Tubes
Normally replaceable-slightly different:
  GL4/1D
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Direct
Information source - - Manufacturers Literature   1935
Babani, International Radio Tube Encyclopaedia   p. 276 & 277
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
17_8.png G470: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
Usage in Models 1= 1931 ; 2= 1933 ; 2= 1934? ; 1= 1934 ; 2= 1935 ; 3= 1938 ; 1= 1939
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):12

Collection of

Danko Tkalec (HR)
Patrice Zeissloff (F)
Collection of a member from D
Tomasz Szczesniak (PL)
Aldo Patriarca (CH)
Christian Schaufelberger (CH)
Heinz Schmidt (D)
Collection of a member from D
 
g470_triotron~~1.jpg

G470
 
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