This 1970 Electronic Design circuit uses a varactor or varicap. The circuit divides the frequency of a 150 MHz signal by 2. Similar versions appear on this site.
This circuit can control the speed of Motors up to 2 A and voltages in the range between 3 and 12...
Toshibas IC Brushless Motor Drivers Toshiba offers through Mouser Electronics a broad range of...
This operational filter configuration was obtained in a 1980s publication. The calculation is made by the...