Tag Archives: schematics

Recommended Schematics

DIY “POV” Hard Drive Clock!

Posted on September 11, 2009 by max

This has to be the most “awesome” POV hard drive clock I have seen so far.  Not only it tell time, it does it in the most stylish fashion imaginable using RGB LEDs and rotating discs.

I’ve seen a handful of hard drive clocks, b

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Fridge DIY – How to Convert a Chest Freezer into a Refrigerator!

Posted on August 19, 2009 by max

Here’s a super, innovative way to convert a chest freezer into a highly, efficient refrigerator.  (See PDF schematics here.)

My chest fridge (Vestfrost freezer turned into a fridge) consumes about 0.1 kWh a day. It works only about 2 minutes per hour. At all other times it is perfectly quiet and consumes no power whatsoever. My wind/solar system batteries and power-sensing inverter simply love it.

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DIY – LED lighting Guide

Posted on January 2, 2007 by max

Here’s a cool LED HOWTO guide including how to power LEDs using DC or AC.

LED lights are extremely efficient compared to standard incandescent lighting. No other lighting source outputs as many lumens per watt. They are particularly efficient at producing a single color of light. Other light sources

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Garrett’s DIY #1 – Persistence of Vision Device

Posted on November 6, 2006 by max

(Garrett in Action!)

video://www.youtube.com/watch?v=Lu8iXLNsL-Y

Here’s a cool persistence of vision DIY by Garrett!

Full Story via Link

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DIY – Cylindric Ultrasonic Bat Detector

Posted on November 6, 2006 by max

Here’s a cool DIY on how to make a bat detector. I am not sure if I will ever need this but seems like a good circuit to have a knowledge of. You can of course buy one for like 70 bucks if you need one fast.

Bat’s are fascinating creatures and here in Melbourne they are a common sight. At dusk streams of grey-headed flying foxes leave their camp in the Royal Botanical Gardens to plunder fruit and nectar from suburban flowering gums. The number of urban ba

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