This motor speed control with tachometer sensor was found in the 1993 Radio Experimenter Special Projects. The maximum current is 2.4 A.
Found in an Elektor from the 90s, this circuit can be powered directly by the power grid. The...
This amplifier was published in the July 1961 Radio Electronics magazine. It announced the release of...
The speed of the motor connected to this circuit depends on the amount of light that strikes the...