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Make the PERFECT LM386 audio amplifier?
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The most useful tool ever for electronics repairs - (PWJ212)
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Let's fix a $12,000 Genelec Speaker! You won't believe what was wrong!
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DIY Dual Rail Linear Power Supply with LM317 + LM337 - Full detailed Testing and Explanation
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How to Repair Your Faulty Soldering Iron and Add a Light Indicator Upgrade
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