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How To: Make a Steel Violin (BODY)
How to Wire Your House With Cat-5 (or 6) For Ethernet Networking
Making Printed circuit Boards at or Near Home: A Comprehensive Overview, Almost a Guide
Stop using Ferric Chloride etchant! (A better etching solution.)
Cheap and effective sanitizer
How to Make and Recycle Paper
Salvage surface mount components
Know Your IC: 555 Timers
learn about the 555
Perfboard Hackduino ($8 Arduino-compatible circuit)