Find hidden treasures, or at least try! Designed on the basic principles of 'mine detectors'. This circuit board is rubber banded to any portable AM radio and it will cause an oscillation to be heard when you approach any metal object. When the coil comes close to any large metal object, it changes resonant frequency and you will hear it in the speaker of the AM radio. Lots of fun and I am sure you will find creative uses for it! Easy to build and use. Comes with complete instructions and diagrams.
To order, call toll-free 1-800-422-1100 or 909-471-4932.
Mail your School Purchase Orders to: Gibson Tech Ed, Inc.
1053 S. 1675 W.
Orem, UT 84058
Fax toll-free to 1-866-367-6180.
Email to:Gary Gibson
