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Inside A Mystery 1980s Filter IC Featuring Switched Capacitors | Hackaday
Web Content

Inside A Mystery 1980s Filter IC Featuring Switched Capacitors | Hackaday

Interesting · hackaday.com · generic

Recently [Ken Shirriff] got handed a mystery IC by [CuriousMarc] who had found said IC in a box of various old chips. Labelled only with a date code of the 47th week of 1985 and a mysterious F1-10-…

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Domainhackaday.com
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