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Portable Heating and Cooling System
Cheap Programmable Water Heater Timer
PCB Heater (Diy Joule heating)
Variable voltage supply
Making a controller for a shower water heater.
Complete Guide for Tech Beginners
Cheap variable power supply LM317 under 10$
Light controlled voltage source
DIY, Under-the-Bench-Mounted Soldering Station
Posted:Apr 19, 2013
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