This capacitive switch or approximation relay was found in a 1980s US publication. Power should not be from a transformerless power supply and could be 741. The FET could be any general purpose such as the BF245.
This capacitive switch or approximation relay was found in a 1980s US publication. Power should not be from a transformerless power supply and could be 741. The FET could be any general purpose such as the BF245.
