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Analog Devices Sent me an Audio Amplifier.
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[Eng sub] How to make a very small audio amplifier
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[Eng sub] Making an Sinusoidal (SPWM) inverter with arduino. How to make it and how it works.
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how to use a pencil to find failed parts in 52 year old audio gear; repairing a marantz 1060 part 1
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