HP-35 ('72) Bug Fixes & Variations
#1

Hello all.

During which body redesign did HP implement the ln(2.02) bug fix on the HP-35?

#2

Firmware changes don't generally correlate well with mechanical changes.

#3

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.



Possibly Related Threads…
Thread Author Replies Views Last Post
  HP Prime graphing bug BruceH 1 1,457 11-19-2013, 08:14 AM
Last Post: Joe Horn
  HP Prime - another cosmetic bug BruceH 3 1,678 11-12-2013, 02:18 PM
Last Post: Ken Shaw
  HP-35 blind buy but buggy! Max Stone 7 2,847 11-11-2013, 05:56 PM
Last Post: Dieter
  Another HP 35 Red Dot on eBay Michael de Estrada 5 2,362 11-09-2013, 03:07 PM
Last Post: aj04062
  HP Prime Bug bluesun08 19 5,289 10-14-2013, 10:48 PM
Last Post: Han
  HP Prime bug in EDITMAT Han 7 2,547 09-27-2013, 10:15 AM
Last Post: Han
  HP 35 ... 80 Olivier De Smet 6 2,429 08-29-2013, 07:25 AM
Last Post: Olivier De Smet
  [HP 39Gii] - Bug report Jean-Michel 1 1,590 08-28-2013, 10:53 AM
Last Post: Tim Wessman
  Is the HP-35S bug free? Matt Agajanian 22 6,200 07-01-2013, 04:03 PM
Last Post: Andrés C. Rodríguez (Argentina)
  HP 35 Pretty Good Purchase Today! Norman Dziedzic 1 1,427 03-05-2013, 12:52 AM
Last Post: Dan Lewis

Forum Jump: