reverse polarity – WindowsTechs.com

That Cheap USB Charger Could be Costly

Posted on March 10, 2023 by Al Williams

[Big Clive] picked up a keychain battery to charge his phone and found out that it was no bargain. Due to a wiring mistake, the unit was wired backward, delivering …read more Continue reading That Cheap USB Charger Could be Costly→

Fail of the Week: Flipped Cable Leads to Fried Radio

Posted on August 4, 2021 by Donald Papp

[Doug]’s newly-installed Yaesu FT-891 mobile transceiver failed to power up despite a careful installation, and it turns out to have ultimately been caused by a reversed cable. There’s a happy …read more Continue reading Fail of the Week: Flipped Cable Leads to Fried Radio→