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NPN and PNP checker
Super Easy PC Control of 110 Vac using a Crydom Solid-State Relay
Arduino and LCD- 0 Volt -- 1000 Volt – User Selectable Digital Volt Meter
Electrical Relay Fun
Volthaus Electronics Laboratory
Small 110 volt arc welder (NYDG)
Portable DC power for a Nikon D40, D40X, D60, D5000, and D3000
Simple Low Voltage AC switching with a microcontroller
Playing with Voltage Regulators
How to use burnt Compact Florescent Light Circuit Module
Posted:Jan 18, 2012
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