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The Boys Book of Crystal Sets

This is a classic book which had many reprints in the 1950's through the 1960's.
Full constructional notes to build Twelve Crystal Radio sets are given most using home wound coils. The Germanium diode is still obtainable as are all the other components.

Below are shown the circuits for each of twelve sets and if you want other details a link to a Pdf file is given so that you can download the details.
Thanks to Neil Springate for supplying the file.

Twelve Crystal Set Circuits