Antique radios, Old Time Radios
1N74
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Country:
United States of America (USA)
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| Identical to |
1N74
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| Similar
Tubes |
Other class quality (otherwise equal):
1N73
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| First Source
(s) |
Mar.1951 : -- Original-techn. papers. Electronics
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Description |
GE Varistor: it was a network of four selected and matched germanium diodes, intended for balanced modulator use like 1N73, but wider matching tolerances.
Reverse voltage continuous = 75V
Forward current @ 1.3-1.8V drop = 15mA
Reverse current @ -10V = 0.05uA
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1N74: Electronics 03.1951
Günther Stabe † 19.8.20
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Just Qvigstad
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1N74: Electronics 03/1951 S.112
Günther Stabe † 19.8.20
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