Another of the many similar configurations we have in this section. This one is from a Radio Electronics magazine from June 1985. The transistor is according to the power of the controlled motor.
According to its author, this device indicates the amount of force applied to the sensors. The...
This low frequency doubler requires a 50 mV signal at the input. The circuit is from an old...
This is a circuit that should not be used for readers interested in a fair game. The circuit...