HardwareHackadayabout 2 hours ago
1980s Mystery Chip Identified as Harris HF10
1 min read
Ken Shirriff identified a 1985 mystery IC as a Harris HF10 dual switched capacitor filter after cracking the ceramic package. The chip, labeled with date code 47th week of 1985 and code F1-10-5, was found by CuriousMarc in a box of old chips. This variant of the National Semiconductor MF10 is now scarce as modern versions are discontinued.
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