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7700

Information - Help 
ID = 9727
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to 7700

Base 6-Pin-Base U6A, old, USA (Codex=Kf)
Filament Vf 6.3 Volts / If 0.3 Ampere / Parallel / series AC/DC
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
s_241_g_7.gif
7700: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe

 
valvula_7700.png
7700: DE MI COLECION
Justo Puertas-Paule


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