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Early Experimental Coherer, c. 1902

Inventory Number: 19433

19433-1t 19433-2t 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 (excluding end wires)

Materials: Glass, copper, cork, iron, assorted metals.

Other Given Number(s): Christie's 17.


Early Experimental Coherer, made between 1899 and 1905. Basic coherer in open-ended cylindrical glass tube (of test tube-type style) with single copper connection wires exiting from each end. With two metal discs attached to cork in tube centre, with iron fillings.

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