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A place to discuss member's DIY audio projects & post pictures/schematics. NOTE: There is a limit of 2MB per attachment, and a maximum of 3 attachments per message. If you need to post more than 3 attachments, just add another message.
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Re: How to measure If there I’d DC on the mains

October 12th, 2020, 5:36 pm

This was interesting.

https://www.youtube.com/watch?v=sDE2uekqLsA

After I watched it I realized that if he is correct, the simple way to test would be to put a compass next to the transformer with the AC disconnected. If the needle deflects that would indicate that the core of the transformer has been magnetized by DC.

ray

Re: How to measure If there I’d DC on the mains

October 12th, 2020, 7:32 pm

With AC going through the transformer then the magnet could never form
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