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ID = 35763
United States of America (USA)
Brand: Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Tube type:  Solid-State-Diode 
Identical to 1N71

Base Octal (Int.Octal, IO) K8A, USA 1935
Description Sylvania Varistor: it was a network of four selected and matched germanium diodes, intended for balanced modulator use.
Reverse voltage continuous = 40V
Forward current @ 1V drop = 15mA
Reverse current @ -10V = 200uA 
Information source - - Manufacturers Literature   

1n71_sock.png 1N71: Katalog Elektronnyh Lamp, Prag 1961
Anonymous 15 Collector

Just Qvigstad
1N71: Electronics 03/1951 S.112
Günther Stabe † 19.8.20

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