Another of the many similar configurations we have in this section. This one is from a Radio Electronics magazine from June 1985. The transistor is according to the power of the controlled motor.
This 1.2 to 32 V x 3 A regulator was found in an 80's EDN. The power components must be equipped...
This circuit is used to power small 12V drills used in the drilling of printed circuit boards and...
This circuit generates signals for the calibration of IFI (Intermediate Frequency) of traditional AM and...