This circuit was found in the January 1980 issue of Radio Electronics magazine. It is a digital slot machine using common logic circuits. It can still be easily assembled today.
This circuit was originally designed for testing crystals used in color televisions, but it works...
This circuit was found in the February 1995 issue of Electronics Now magazine. It can double the...
The figure shows how to use an LM3914 with a variable range moving point. The circuit has an...