This high-sensitivity circuit was found in a 1980s documentation. The source can be a 9 V battery with a splitter to make it symmetrical. The shock can be 200 uH or more.
Found in a Motorola manual from the 1980s, this circuit uses components from the era. The circuit...
This circuit, which may have more inputs, consists of an optical OR gate using common...
Suggested by Amperex in a 1968 documentation, this circuit is based on TAA370, an integrated circuit...