Nowadays you can buy white LEDs, which emit quite a bit oflight. They are so bright that you shouldn’t look…

To determine the amount or magnitude of the electrical current flowing around an electrical or electronic circuit, we need to…

This application of the well-known Type 555 timer is intended for model railway enthusiasts wishing to construct a two-lamp flashing…

FOUR POSITION TOUCH DIMMER Any electric light may be adjusted with this dimmer to very low, low, medium, and maximum,…

FLASHING LIGHT WITH TWILIGHT SWITCH The special feature of this flashing light is the op- tical switch, which automatically switches…