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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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DIY Vacuum Tube Maker
Pretty interesting vid if you have about 17 minutes to kill.
http://blog.makezine.com/archive/200...ccum_tube.html Dave |
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