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DC2/SGVM

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ID = 12653
       
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 DC2/SGVM
First Source (s)
Aug.1932 : Wireless World (The), London (WW, 79) p168
Was used by Radio/TV-reception etc.
Filament Vf 20 Volts / If 0.1 Ampere / Indirect / Specified current DC = (Series working)
Description

2.2mA/V

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   Ediswan 1970
dc2sg_dc2sgvm~~1.png
DC2/SGVM: own collection
Peter den Boer
Usage in Models 2= 1932? ; 2= 1933 ; 1= 1934
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5

Collection of

Rodney Boleyn (USA)
 
gb_mazda_dc2sgvm_bw.jpg

DC2/SGVM
 
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