Crystal Radio
 This crystal radio set is in the Millington/Barnard Collection in the University Museum at the University of Mississippi. 

   The detector can be seen at the left front of the baseboard. It consists of a fine crystal of galena (lead sulphide) with a fine wire or cat's whisker resting gently on its surface to made the rectifying contact.

   The crystal set tuner at the right is home-built, and has many of the characteristics shown in the Department of Commerce Circular of the Bureau of Standards, Bulletin No. 121, "Construction and Operation of a Two-Circuit Radio Receiving Equipment with Crystal Detector", issued July 17, 1922.

   The tuner is in the Greenslade Collection.

 Return to Home Page | Return to Miscellaneous Page