TechHackadayabout 4 hours ago
Learning About Ground Loop Isolators thanks to a Scam Product
2 min read
A ¥1,200 XLR ground loop isolator from Japanese Amazon was torn down and found to contain direct wiring between the XLR sockets instead of a transformer. The author then designed a real isolator with a custom PCB and high-pass filter, demonstrating proper ground isolation and noise removal.
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