We found this circuit in the June 1992 issue of Radio Electronics magazine. The sensor is a common diode. The circuit is powered by the power grid from a 12 V transformer.
This circuit of a Popular Electronics is intended to control a wiper. The circuit consists of a...
This circuit is an improvement of the previous one, with the use of two transistors produces a...
Motorola's LM13600 integrated circuit is not very common today. The input voltage is 10 mV. We...