Nickle/Mercury Head Control Switch.Return to Search Results
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------- "DO IT YOURSELF" ENTRY ------- PURPOSE: Mercury switch activates device when it is held upright and turns it off when tilted sideways or down. Can be used to encourage a child to hold head up in order to activate a tape recorder, toy, or light. Switch is contructed of glass mercury switch, small plastic pill bottle with snap lid, earphone with subminiature size plug, 2 small pieces of cardboard, tape, glue, and rosin core solder. SKILLS REQUIRED: Soldering. AUTHOR: Burkhart, L J TITLE: Homemade Battery Powered Toys and Educational Devices for Severely Handicapped Children REF: Millville, Pennsylvania: Linda J Burkhart: p 3-6 NARIC CALL NUMBER: R1175 PAGES (including cover): 4 1982.
This product record was updated on January 18, 2001.See more "Do It Yourself" products.
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