This alarm with sensors in series and parallel was found in the 1995 Encyclopedia of Electronic Circuits. The number of sensors can be changed at will.
June 2017 - Bosch's new low G triaxial sensors can now be obtained from Mouser Electronics. The...
A complete test for opto-couplers can be made using the circuit Bellow. The function generator...
This circuit, with adjusted sensitivity, can use common general-purpose transistors. The circuit is...