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AC/SG

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ID = 9764
       
Country:
Great Britain (UK)
Brand:
Developer: Mazda = Valve (Tube) brand GB (see also France) 
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to AC/SG
Similar Tubes
Normally replaceable-slightly different:
  AC/S2 ; CV1677 ; VT109_GPO
Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source History of the British Radio Valve to 1940   p. 148 & 183
Babani, International Radio Tube Encyclopaedia   Pages 48 & 49
- - Manufacturers Literature
Taschenbuch zum Röhren-Codex 1948/49
s_8_g_5.gif AC/SG: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20

Just Qvigstad 		ag-sgcourbes.png
AC/SG: Radio {PAДИO} 10-1930
Jean Marchal
More ...
Usage in Models 1= 1929? ; 4= 1929 ; 2= 1930? ; 3= 1930 ; 2= 1931 ; 1= 1932 ; 1= 1933? ; 4= 1933
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):18

Collection of

Tomasz Szczesniak (PL)
Jose Antonio Gonzalez-Ruiz (E)
Howard Craven (GB)
 
acsg_resize.jpg

AC/SG
 
Forum contributions about this tube
AC/SG
Threads: 1 | Posts: 1
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AC/SG (AC/SG)
Jean Marchal
07.Nov.11 		  1
AC/SG (AC/SG) 

Caractéristiques principales de la tétrode AC/SG :

VA= 200V, VG2=80V, VG1=-1 volts, IA=3.4 mA, IVG2=1.2 mA.
 
AC/SG
End of forum contributions about this tube
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