This circuit was obtained in a Hands-On Electronics from the 90's. The circuit turns on one LED at the end of the timer, erasing the other. The timing can be increased by increasing C1.
This circuit that emits siren sound can be used in a fire alarm. We found it in an old American...
Launched in 2017 the Microchip CL88020 is an LED driver optimized for 120 VAC input applications with an...
This circuit was found in Electronics Handbook, Vol XIII 1993 and consists of a simple direction...