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Post Recently [Ken Shirriff] got handed a mystery IC by [CuriousMarc] who had found said IC in a box of various old chips. La…

11 October 2026

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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 …read more (https://hackaday.com/2026/10/11/inside-a-mystery-1980s-filter-ic-featuring-switched-capacitors/)

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