This indicator circuit used and game machines (arcades) to indicate that the machine is being shaken was found in NASA documentation. The circuit uses as a sensor a container with water and three sensors.
May 2017 - Toshiba's new Bluetooth Low Energy Chip TC35678 for wireless applications can be...
This signal multiplexer circuit for early low-frequency oscilloscopes was found in the May 1977...
This circuit was found in old documentation but uses components that are still common. The circuit...