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The difference flux makes on old circuit boards is wild
I cleaned up a 2005 receiver last weekend that had this nasty brown crust on all the solder joints, looked totally dead. After a quick scrub with some rosin flux and a reflow on the power supply caps, it fired right up with zero issues. Has anyone else noticed how much gunk can hide under old flux residue?
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noah_barnes1mo ago
Oh man, that crusty brown flux always makes me think the board is toast, but it's basically just old glue at that point. I had a 90s amp once that looked like it had been sitting in a coffee spill, hit it with some flux and a heat gun, and it worked better than my new stuff.
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