There was this test system that comprised a huge row of equipment racks into which various items of test equipment would be mounted. Those items were a digital multimeter, an oscilloscope, several ...
Joule thief are small, fun circuits which exploit a few characteristics of electronics and LEDs in order to “steal” virtually all of the energy stored in a battery. They can operate at incredibly ...
Reeves Studios is a woman-owned interdisciplinary art and design firm based in Phoenix, Arizona, known for its unique light ...
From what I understand in a neon or florescent light, the light comes from photons. 1. You run electricity through the neon gas filled tube and the electricity (added energy) causes the electrons on ...
Toys and novelty items sometimes require random light displays to create a desired visual effect. However, creating a battery-powered random light display Toys and novelty items sometimes require ...
A long, long time ago there was a great Design Idea for a simple gadget to find a bad bulb in a series-connected string of Christmas lights: This is really simple and works great, but it exposes the ...
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