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.
This circuit was found in documentation from the 80s. The components are from the time, but the...
We can make an oscillating relay producing a rectangular signal taking advantage of the inductance of...
The circuit shown in the figure is a voltage follower, that is, an amplifier with unit gain. The...