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.
This circuit can use both separate LEDs and a common cathode display when one segment indicates...
The first transformer is a driver found on transistor radios and the second a small output...
Signals of up to a few tens of kilohertz can be generated by this circuit found in a European...