More about light (490)

1-02-2003 | At the end of the Light Mixer Panel article published in last year’s February issue we promised to complete the project with a compatible di...

1-12-2002 | One thing that’s still always very irritating with model train setups is that the locomotive or carriage lights often flicker with the train...

1-12-2002 | Inexpensive receivers for standard infrared remote control units for television sets and video recorders are available in the form of integr...

1-11-2002 | You would be forgiven for thinking that a torch is probably the ultimate minimalist circuit: all you need is a battery, switch and bulb and...

1-07-2002 | If you need to drive a number of white LEDs to provide display backlighting or for a white-light torch what’s the best way to configure them...

1-07-2002 | This infrared alarm can be used to detect persons passing through doorways, corridors and small gates. The transmitter emits a beam of infra...

1-06-2002 | White light LEDs have been a long time in the making. This design (as part of our Mini Project series) employs a simple circuit to make the...

1-05-2002 | Although you will stumble over programmers for EEPROMs, matching eraser units are few and far between. The small ‘hed.eraser’ solves the pro...

1-03-2002 | The light barrier system described in this article allows accurate measurement of the absolute speed of model cars, planes and other moving...

1-02-2002 | This highly affordable eight-channel light mixer panel has all of the standard control features plus extras such as a switchable rhythm gene...