This circuit allows you to simulate an analog telephone line for the repair and testing of devices. The circuit is from 1994 and all the components used are common.
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...