Free
Single function mercury control switch for operating electronic equipment. Comprises small, smooth surfaced rectangular box, operated by tipping cable end down five degrees from horizontal position. Designed for operation, for example, by touching with head pointer. Connected to long cable and jack plug.
***This item has been discontinued by the manufacturer.
Single function mercury control switch for operating electronic equipment. Comprises small, smooth surfaced rectangular box, operated by tipping cable end down five degrees from horizontal position. Designed for operation, for example, by touching with head pointer. Connected to long cable and jack plug.
***This item has been discontinued by the manufacturer.
