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That heat gun shortcut young techs keep using on old boards
I noticed the newer guys in my shop keep using high heat on circuit boards to speed things up. They crank the gun to 800 degrees and wonder why the traces lift right off. I have been doing this work for 25 years and I learned the hard way that lower heat and patience save more boards. Just last week a kid ruined a 1980s receiver by rushing a capacitor swap. He melted the solder mask near three joints and the whole trace came loose. Why do so many people think faster heat equals better results?
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blairc901mo ago
Roberts.leo said it's 'asking for a funeral' but honestly I think some people blow this stuff way out of proportion. 800 degrees is high sure but I've seen guys hit old boards with 600 and still wreck them because they held the gun in one spot for too long. It's not always about the temp, it's about technique and not being an idiot with your hand speed. Plus vintage boards vary so much that one receiver might handle heat fine while another one crumbles. I think some of the older guys just like to complain because they had to learn the hard way with no videos or guides.
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roberts.leo1mo ago
Wait, 800 degrees? On a vintage board? That's just asking for a funeral.
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Oh man, I literally just watched a youtube video last night about this exact thing. Some guy was trying to reflow solder on a vintage Nintendo board with a heat gun and he melted the plastic connector right off. It was a total disaster, the thing just crumbled. People in the comments were losing it. I guess the moral is that old boards are just super fragile and 800 degrees is basically a blowtorch at that point.
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