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DZ2222

Information - Help 
ID = 3521
       
Country:
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Tube type:  TRIODE (Detail uncertain) 
Identical to DZ2222 = RE034
Similar Tubes
Normally replaceable-slightly different:
  C25

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 4 Volts / If 0.06 Ampere / Direct
Description Audionröhre von Mazda, Frankreich (um 1925). 
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
dz2222.jpeg
DZ2222: Photo of tube from my collection - TS
Tomasz Szczesniak

 
1_153.png
DZ2222: Telefunken Werkstattbuch
Wolfgang Bauer

 

Usage in Models 1= 1927? ; 1= 1928?? ; 1= 1929??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3


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