04-18-2012, 04:30 PM
Hello all.
During which body redesign did HP implement the ln(2.02) bug fix on the HP-35?
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HP-35 ('72) Bug Fixes & Variations
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04-18-2012, 08:07 PM
Firmware changes don't generally correlate well with mechanical changes.
04-19-2012, 06:52 AM
US-made 35s with 1143-serial numbers (probably not all though) had the bug. If judging by the casing, I'd say it correlates more or less with the "raised dot" on the "5"-key". However a lot of calculators were sent back for service, the faulty ROMs were desoldered and replaced. |
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