LO_PARTS_TREASURE_LOCATOR

Published:2009/6/25 20:59:00 Author:May | From:SeekIC

Locator uses a transistor radio as the detector. With the radio tuned to a weak station, adjust C1 so the locator oscillator beats against the received signal. When the search head pas-ses over metal, the inductance of L1 changes thereby changing the locator oscillator's frequency and changing the beat tone in the radio.The search coil consists of 18 turns of #22 enameled wire scramble wound on a 4-in.diameter form. After the coil is wound and checked for proper operation, saturate the coil with RTV adhesive for stable operation of the locator.



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