This circuit uses a power component that is not common today, being recommended by Motorola in the 90's. Note the need for symmetrical power supply.
This circuit produces a sequence of steps controlled by P1 and applied to a 12V stepper motor with...
Using a CA3030, this circuit was found in the May 1988 Radio Electronics magazine. The power...
This preamplifier circuit for turntable cartridges was found in the March 1994 issue of...