Learn how to make your own DIY portable speaker for your smartphone using basic components like mini speakers, an amplifier circuit, and a micro-USB OTG cable. This step-by-step tutorial guides you ...
A friend of mine is producing a series of HOWTO videos for an open source project, and discovered that he needed a better ...
Engineeringness on MSN
How a simple knob controls voltage
Potentiometers may look like basic knobs, but they play a key role in adjusting voltage within a circuit. In this video, ...
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