This circuit was found in an ancient American documentation. With it is possible to double the frequency of a transmitter For the range of 6 meters obtaining 8 W. The circuit makes use of varicap.
Using an integrated effects circuit, this circuit produces gunshot sound. The circuit must be...
In the figure we have a three-phase AC motor control for voltages up to 600 V or 1200 V depending on...
This circuit is intended for PWM speed control of a motor up to 500mA with the BD136, using...