This circuit was found in Motorola's 1968 documentation. It can be built on current equivalent components. The bridge diodes and the SCR must be in accordance with the current of the controlled motor.
The figure shows how to implement an alarm buzzer in an LM3914 to warn about crossing the scale...
Found in the July 1994 Electronics Now magazine, this circuit drives a relay up to 12 V depending on...
May 2017 - Mouser Electronics is delivering a voice recognition kit from NXP Semiconductors. The...