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Early Coherer, c. 1902

Inventory Number: 62930

62930-1t 62930-2t 17473-19433-34674-50538-53061-55585-57633-62930-72143-72278-80963-82611-87538-88920-98899-1t

Date: c. 1902

Maker Details: Unknown

Inscription: None

Size: 80 mm in overall length

Materials: Glass, elastic, copper?, steel, assorted metals.


Early Coherer, made between 1899 and 1905. Basic coherer in cylindrical glass tubes, main tube is of thermometer tube-type style with smaller tube attached with elastic wire wrapping. With copper? wire wrapped around middle of longer tube, and steel wire exiting from both ends of smaller tube.

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