Ultra Bright LED Lamp

This ultra-bright white LED lamp works on 230V AC with minimal power consumption. It can be used to illuminate VU meters, SWR meters, etc. ...

Automatic Gate Light With A Musical Bell

This circuit may be used to auto- matically switch on a light at the enterance gate to a premises, at night, by sensing the presence of a pe...

A Highly Efficient DC Lamp Dimmer

The simplest lamp dimmer cir- cuit consists of a rheostat, in se- ries with the lamp, which one may adjust to obtain the required brightness...

Christmas Lights Tester

Like every year around the same time, I hurried to get my Christmas tree all set up and the first thing we do when the tree is 'standing...

Strobe Light

A simple electronic strobe light for dancing lovers can easily be constructed by using a timer 1C 555 and a triac. The cost of the circuit d...