This circuit triggers an alarm in the event of a power failure. The circuit is from an 80's documentation, being powered by 9 V battery. The parts are common today.
We found this circuit in 1964 General Electric documentation. The circuit works with mechanical...
March 21, 2016 - Mouser Electronics, Inc. is now stocking the WGM110 Wizard Gecko Wi-Fi module...
The relay used in this circuit must be of the sensitive type with a trigger current less than 10...