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7D9

Information - Help 
ID = 10702
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  Vacuum Pentode   Power/Output 
Identical to 7D9 = EL91

Base Miniatur-7-Pin-Base B7G, USA 1940
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Parallel, (AC/DC)
Information source Taschenbuch zum Röhren-Codex 1948/49   
Röhren-Taschen-Tabelle, (Franzis RTT)   
  7d9_korr.png
  7D9: corrected version
Roland Langfeld
 
mi17_g_4.gif
7D9: RTT Schwandt
Günther Stabe † 19.8.20

 

from Just Qvigstad

Usage in Models 1= 1951

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

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