Posted: 3/13/2014 8:32:14 AM EDT
He let the smoke out.
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Mesmerizing. I've seen the aftermath of such failures, although not usually resistors that I remember(seems like small diodes and capacitors are rather more prone to such things, but I've seen resistors that were quite dark, probably were close to going up in flames at some point). Even managed to get one back up and running after replacing the component that had turned into a pair of blackened wires  |
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I say yes as well. In fact, forward to your professor for extra credit. Quoted:
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I have a physics exam over this crap in an hour. Does watching this video from arfcom count as last minute studying? I say yes.  I say yes as well. In fact, forward to your professor for extra credit. I say submit the link as the answer to your test. |
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I say yes as well. In fact, forward to your professor for extra credit. Quoted:
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I have a physics exam over this crap in an hour. Does watching this video from arfcom count as last minute studying? I say yes. I say yes as well. In fact, forward to your professor for extra credit. We actually did that in lab a couple weeks ago (and burned a couple). The smell of flaming resistors is horrific 
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I was waiting for a wizard to walk out of there. |
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Used to work in final test for an electronics firm, production had the the habit of randomly installing tantalum capacitors in reverse polarity. Because of component density on the board (approx. 18"x14" boards) it was a time consuming PITA to check each & everyone of them for proper polarity. When the board was installed in the frame, it would shut down the power supply. We had a power buss connector connected to a car battery on a back bench, several times a week one of the guys would shout 'fire in the hole' as tantalum capacitors would explode from the board. Then it was a simple matter to replace them. They'd commonly mix values of resistors 22K's with 2.2K's and such it made it a real PITA to troubleshoot. You'd have to take a known good board and visually compare it with the suspect board before powering it up. |
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Yeah, fuck all of that. |
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Used to work in final test for an electronics firm, production had the the habit of randomly installing tantalum capacitors in reverse polarity. Because of component density on the board (approx. 18"x14" boards) it was a time consuming PITA to check each & everyone of them for proper polarity. When the board was installed in the frame, it would shut down the power supply. We had a power buss connector connected to a car battery on a back bench, several times a week one of the guys would shout 'fire in the hole' as tantalum capacitors would explode from the board. Then it was a simple matter to replace them. They'd commonly mix values of resistors 22K's with 2.2K's and such it made it a real PITA to troubleshoot. You'd have to take a known good board and visually compare it with the suspect board before powering it up. I'm sure you and your coworkers had a colorful vocabulary during working hours.
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B ad B oys R ape O ur Y oung G irls B ehind V ictory G arden W alls B ad B oys R ape O ur Y oung G irls B ut V iolet G ives W illingly. Or the less PC version: B lack B oys R ape O ur Y oung G irls B ut V iolet G ives W illingly. I like this version better since there's no confusion in the order of black and brown. |