Crystal Clear: Vintage American Crystal Sets, Crystal Detectors, and Crystals, Volume 1
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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address unknown adjustment aerial Aeriola Airphone AMRAD Argentite Bakelite base binding posts Carborundum Catalog catwhisker Chicago Clapp-Eastham coil collection and photo Company Crosley crystal detector crystal receiver crystal set Crystal XXX;XXX dealer DETECTOR PRICE Detector Stand Detroit Detroit MI diam Duck Elec Electro Importing Equipment Ferron ﬁnish ﬁrst ﬁxed Galena label LEMCO Little Giant Los Angeles CA LWS;OHC MANUFACTURER SET NAME/CASE marketed Martian MESCO Midget Mineral Model mounted MPM;EHM Newark Newark NJ numbers panel patent Perikon Philmore Mfg Pocket Radio PRICE YEAR REF Radio C0 Radio Corp Radio Mfg Radio Products Radio Receiver Radio Service Radio Specialty Radiola Radiophone Receiving Set reﬂex Reymann collection Roebuck Roebuck & Co RQMCVO Sales sensitive Silicon SPI;OHC Steinite Supertone tector Telephone Tinytone tube tuner tuning Type unknown mfr UWI;OHC Wireless Specialty Apparatus X E O X E V Yes Yes Zincite