Collector Bookstore is a retailer of new books located in Leavenworth, Kansas. We specialize in price guides and reference books for the antiques and collectibles industry.

Volume 1 Table of Contents

Volume 2 Table of Contents

In the 1920's and 1930's millions of Americans donned headphones to search for radio broadcasts, by moving a "cat's whisker" accross the surface of a piece of galena and adjusting a coil which was attached to a long wire antenna. The era of these simple crystal radio receivers is revisited hundreds of photos and magazine ads identifying almost a thousand different commercially produced models of crystal radios and detectors made in the USA from 1920 to 1950. Detailed company histories of four of the most influential manufacturers are also presented; Wireless Specialty Apparatus Company, Radio Corporation of America, Philmore Manufacturing Company and Western Manufacturing Company.

Together, Crystal Clear, Volumes 1 & 2 provide an excellent identification guide for collectors, and an enjoyable trip down memory lane for those who want to relive the days when building a crystal radio and searching for a sensitive spot on the galena was a standard experience for youngsters learning the first principals of electronics.