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77E

Information - Help 
ID = 25574
       
Country:
Great Britain (UK)
Brand: Brimar (STC); Foots Cray
Tube type:  Vacuum Pentode   Universal 
Identical to 77E = 77
First Source (s)
1933 : The AWA Journal Vol. 7

Base 6-Pin-Base U6A, old, USA
Filament Vf 6.3 Volts / If 0.3 Ampere / Indirect / Parallel / series AC/DC
Information source Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
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77e_so.png
77E: ARRL Handbook 1972
Michael Schlör

 

from Just Qvigstad

Usage in Models 1= 1934

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

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