Using the LM3914 this unusual digital clock uses a Bargraph LED indicator. The LEDs are the segments of a 7-segment display. We found it in February 1980 Radio Electronics magazine.
Radio Electronics magazine published in a 90's issue this simple alarm that can use any general...
This simple circuit tests electrolytic capacitors from 1 uF with a working voltage above 12 V. The...
This circuit was found in a 1967 Raytheon optoelectronics manual. The circuit uses tubes. | Clique...