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.
We found this circuit in an article in Electronics Now magazine from March 1996. The frequency is limited...
This circuit provides a good audio power from a signal at least 1 V of amplitude. The MOSFET must...
This converter can be used to send information remotely from linear transducers, converting...