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A 30 year tech in Cleveland told me to quit soldering on a hot panel and it stuck with me
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grant.margaret2d ago
A guy named Sal in a shop I worked near had a rule about heat and joints: heat goes up and solder goes to heat, so working upside down under a live panel flips both on you. The part nobody brings up is that a hot joint can fool your meter too, reading fine while it cools and then failing at the load. Pulling the breaker and letting it sit beats any trick for keeping your hand steady.
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