Suggested by Motorola documentation from the 1980s, this circuit can be implemented with equivalent power MOSFETs. The type depends on the current of the controlled motor, as well as the diodes.
This adjustable source was found in a 1979 documentation, but all components are still common...
Frequencies from 1 to 10 MHz can be obtained with a small adjustment of the variable in a narrow...
This circuit, obtained from the Texas Instruments component datasheet, can control up to 25 mA of...