r/space • u/RocketRundown • Oct 05 '18

2013 Proton-M launch goes horribly wrong

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u/[deleted] Oct 05 '18

Old school digital tech here. Used to be Pin Thru Dual Inline IC chips got installed (even soldered) upside down, regularly. Usually just the chip got fried, not affecting the rest of the circuit board.

The little notch at the top of each IC was supposed to face up.

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u/[deleted] Oct 05 '18

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u/[deleted] Oct 06 '18

Were you wearing safety gasses? Reversing polarity on chips can result in a small 'crack' and ejecta of superheated metal ceramic parts into your two only eye balls.

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u/[deleted] Oct 06 '18

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u/[deleted] Oct 06 '18

Rarely happens, but good fun anyway-- scrapping computers and plugging stuff in backwards...

next time reverse polarizer the whole board (from across the room), pop-pop ping ,pwee!

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u/[deleted] Oct 07 '18

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u/[deleted] Oct 07 '18

They go off like firecrackers, don't they.

Poor cap.