Cobra XRS 9930 Radar Detector The Cobra XRS 9930 is a 12 band™ radar detector featuring Cobra's Xtreme Range Superheterodyne™ Technology With this new technology,the Cobra XRS 9930 has even more ...
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If you ever thought about becoming a treasure hunter this simple DIY metal detector by [mircemk] may be a nice project to start with. The design is based on an opensource metal detector called Smart ...
The heart of this diy metal detector circuit is the CS209A IC. The metal detector is built with one 100µH coil that has 40 mm in diameter and is made of 50 turns/0.4 mm wire. CS209A has one oscillator ...
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