Did you buy an old stereo from another country with a different voltage compared to where you live now? With this solution there is no need to use a heavy external transformer. This multi voltage solution allows you have the stereo working on 100v, 110v and 220v - 50/60hz for any country around the world.

Soldering Iron Kit - https://amzn.to/3KjZWJq
Digital Multimeter - https://amzn.to/40g14lO

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Stereo adapted in this video is a Panasonic RXDT707

#voltage #conversion #stereo