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  • DIY Spot Welder From Microwave - Now With OLED Display!

    Never mind, this is a high voltage transformer, and it rises the voltage for the magnetron...

    Are you sure about this? Primary coil is always thinner wire, as secondary has to put out much more amps.. So you are removing the primary coil, and replacing it with few coils of wire that will act as a new secondary, whilst old secondary coil will be the new primary coil

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