Crystal detector, fixed type. Made by the Carborundum Co., Niagara Falls, New York, U.S.A. Used in radios.

Physical Description

Fibre tube with brass end caps, each fitted with a terminal. The tube has been sectioned to expose the insides, consisting of a crystal connected to an end cap embedded in plug of solder. A brass plunger and spring is connected to the other end cap. The spring holds the plunger in firm contact with the crystal. The item is mounted on a display block with label.

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