Crystal Clear: Vintage American Crystal Sets, Crystal Detectors, and Crystals, Volume 1

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Sonoran Publishing, 1991 - Antiques & Collectibles - 292 pages
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This book revisits the era of the simple crystal radio set, when a "cat's whisker", piece of galena and a coil of wire were all that was needed to tune in a radio signal. It contains hundreds of photos and magazine ads identifying thousands of crystal radios and detectors made in the U.S. from 1920 to 1950. Company histories are given for the Wireless Specialty Apparatus Company and RCA.
 

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Contents

I
3
II
6
III
10
IV
15
V
28
VI
32
VII
48
VIII
104
IX
110
X
119
XI
149
XII
152
XIII
158
XIV
269

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