Tag Archives: product design

Bottle Cap Buzzy Glow Toy

Take a plastic bottle cap and make it buzz and glow. Flip it over and here’s the internals: The bottle cap I have in mind is the plastic one that comes on top of one-gallon water jugs. The 3 volt … Continue reading

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Autofade Table Lamp on Youtube

Here’s the autofade table lamp video that I posted to Youtube. Values of the capacitor and resistors are subject to tweaking, of course.

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Autofade Table Lamp Test Circuit

So, as you recall from my previous entry, I wanted to build an autofade table lamp based on this circuit diagram: This is how the test circuit looks in reality (the hand, by the way, is my nephew’s): (Note that … Continue reading

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Autofade Table Lamp

Years ago, my car had an interior light that would come on when the door was opened, then slowly fade away when the door was closed. I now need something like that for my apartment. The light switch next to … Continue reading

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