A guy at the Portland flea market showed me his $2 cord tester and it saved me $340 on a "broken" table saw
I almost walked away from a table saw at the Portland Expo flea market two Sundays back because the seller said the motor was dead and he wanted $75 for it as a parts machine. I had my wallet out ready to pass when this older guy in a flannel next to me pulled a little plug in tester out of his pocket, the kind with three lights on it, and asked the seller if he could check the outlet the saw was plugged into. Seller shrugged and said sure. One of the lights didn't come on and the guy just goes "your outlet's missing a leg, friend." We moved the saw ten feet to a different outlet and it fired up on the first pull. Seller got quiet, then said he'd take $140 for it. I paid it, loaded it in my truck, and it's been cutting fine in my garage for two weeks now. I've been buying used tools at swap meets and estate sales for probably nine years and never once thought to carry a $2 outlet tester with me. Has anyone else had a seller misdiagnose a tool just because of bad power at their own booth, or am I the only one who got lucky with a stranger stepping in?