Metal detector with CD4011

Published:2012/9/13 21:16:00 Author:Ecco | Keyword: Metal detector | From:SeekIC

The working principle of this cheap and easy to build metal detector circuit consists in mixing two equal frequencies which causes a low-frequency interference. When one of the oscillators become unstable then the frenquency of the interference will be modified. The metal detector circuit is built with CD4011. Source: NEXT.GR



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