The metal detector circuit shown here must represent the limits of simplicity for a metal detector, yet the design works surprisingly well. It uses just one 40106 hex Schmitt inverter IC, a capacitor ...
Looking for a light project to teach young hackers some very basic electronics? Here’s a quick and easy weekend project, a simple metal detector! We all know 555 timers are very useful and pop up in a ...
The phase-frequency detector (PFD) consists of 2 D-trigger with reset from external circuit, performed in ECL logic and multiplexer, which allow to sw ...
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