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AC/SGVM

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ID = 12521
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to AC/SGVM
First Source (s)
Aug.1932 : Wireless World (The), London (WW, 79) p168
Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Description

Long grid-base hf tube.

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
acsgvm_sock.png AC/SGVM: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

Just Qvigstad 		acs1vm_acsgvm~~1.png
AC/SGVM: own collection
Peter den Boer
Usage in Models 2= 1931 ; 6= 1933 ; 1= 1934? ; 2= 1934
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):11

Collection of

Jose Antonio Gonzalez-Ruiz (E)
 
acsgvm_resize.jpg

 
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