The maximum current of this circuit is 200mA, and the ripple is only 50 mV. The circuit is suggested by Texas Instruments in its linear applications manual.
A ring and pendulum of stripped wires form the sensor for this alarm. Once triggered, to reset, you...
Designed for the audio track, this circuit was found in a Popular Electronics from the 90's. Other...
An interesting basic circuit for projects is shown in the figure. It consists of a digital...