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DW1B_7pin

Information - Help 
ID = 23102
       
Country:
France
Brand: Métal; France (tubes)
Tube type:  Dual-Grid Tetrode   Frequency converter 
Identical to DW1B_7pin
Similar Tubes
Other base:
  DW1B

Base SPECIAL TUBEBASE in general
Filament Vf 4 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC)
Information source -- Collector info (Sammler)   
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dw1b_1.jpeg
DW1B_7pin: Photo of tube from my collection - TS
Tomasz Szczesniak

 
dw1bsockel.gif
DW1B_7pin: H.G.
Harald Giese

 

Usage in Models 1= 1930

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1


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