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.
Using the LM3914, this circuit is suitable for benchtop experiments. It was found in the March 1995...
This very sensitive circuit works almost like an electroscope. The FET can be the BF245 and it...
This 50's receiver includes an amplifier stage with a transistor complementary to the CK722, in...