This circuit is used to test triacs. It can be connected in series with a resistive load such as an incandescent light bulb. The circuit was suggested by Electronics Now magazine in November 1999.
This circuit is suitable for testing motor starting capacitors. Capacitors from 2 to 8 uF are...
This circuit was found in a 90s Popular Electronics. The circuit uses 4 bicolor LEDs to indicate...
This circuit causes the light of a bicolor LED to change when it is turned on. The time of...