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Laser cut gear clock - with ChronoDot!
How to build a laser (general guide)
Make a poweful (green) railgun!
Make A Water Leyden Jar
The Radioshack, Adjustable, Breadboard Power Supply.
How to repair capacitors on computer motherboards and other electronic devices.
Building a solid state tesla coil
A reliable plasma speaker
Double Capacity MintyBoost with 4-AA Battery Holder Modification
Make a bench power supply mostly from recycled parts
Get Big Money for Scrap Batteries
DIY Etch Tank
How To Build a Solder Fume Extractor
Laser Surveillance System for under $20
Laser wood burning pen
The amazing Pringles Stirling engine