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Old HP Forum Archives

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  1. amusement for the advanced programmers of ya' (0 Replies)
  2. printer cable for 9866 (0 Replies)
  3. HP-41C Addendums (1 Reply)
  4. The 42S's are gone (7 Replies)
  5. converting HP41 cx IR data to 8 bit serial (10 Replies)
  6. A method to print directly from the serial port of HP-49G (4 Replies)
  7. 17IIB TAN implementation (1 Reply)
  8. HP 21 Rechargeable Battery Needed (4 Replies)
  9. 42s (3 Replies)
  10. HP 9845B: Any expertise out there? (1 Reply)
  11. 42s (1 Reply)
  12. HP9810 keyboard fault (24 Replies)
  13. Short & Sweet Math Challenges for HP fans #5 (28 Replies)
  14. HP Part numbers 32S, 32SII, 20S, 22S and 42S (7 Replies)
  15. Replacement battery for HP-41C rechargeable pack (2 Replies)
  16. weird 97 keyboard behaviour (5 Replies)
  17. Origin of my HP-67 (1 Reply)
  18. OT: Have you heard the news? (7 Replies)
  19. HP 9820A (14 Replies)
  20. A couple of HP9810 questions (2 Replies)
  21. Hp-41 execution redirection (7 Replies)
  22. VASM listings needed ... (1 Reply)
  23. The perils of asking questions on ebay (17 Replies)
  24. HP-48GX of black character. (15 Replies)
  25. HP49G (6 Replies)
  26. HP-97 Power/Charging Problem (2 Replies)
  27. Disabling Internal Hp-41 roms(long) (4 Replies)
  28. Saturn processors (6 Replies)
  29. article about Apollo spacecraft computer (0 Replies)
  30. STUPID BUTUSEFUL CHALLENGE #879 (8 Replies)
  31. FORTH on HP-71B (6 Replies)
  32. New ebay twist? Make a PDF of manual and sell it? (2 Replies)
  33. code names (6 Replies)
  34. HP 42s prices!! (16 Replies)
  35. HP 82143 protocol (1 Reply)
  36. Useless challenge No. 2 (11 Replies)
  37. HP 67 Display Problem (2 Replies)
  38. HP-41C: Module conflict (4 Replies)
  39. american made (11 Replies)
  40. Understanding serial # (1 Reply)
  41. Short Battery Life 41CX (6 Replies)
  42. HP-12C Variation (4 Replies)
  43. Last known serial number list (0 Replies)
  44. HP Museum and Newspapers (5 Replies)
  45. Modules for HP41 (14 Replies)
  46. HP28S dead: see picture (5 Replies)
  47. Rubber keys: How're they lasting? (6 Replies)
  48. HP 110 System (7 Replies)
  49. HP 32 sii on ebay -- said "old model" (18 Replies)
  50. ZenRom for $396.00 ! (5 Replies)
  51. programming a piecewise function on the 48 G (4 Replies)
  52. Does the death of the lead storage battery mean the whole death of 9114B 3-1/2 Disc Drive? (6 Replies)
  53. HP-110+ HP-41CV (3 Replies)
  54. HP98xx Emulators? (5 Replies)
  55. Short & Sweet Math Challenges for HP fans #4 [LONG!] (6 Replies)
  56. broken 'speaker' HP41C (6 Replies)
  57. HP-25: battery problems (3 Replies)
  58. Another MoHP pic in eBay, with a twist !! (2 Replies)
  59. 9826 hard disc (0 Replies)
  60. HP41 Card Reader problem (6 Replies)
  61. AWESOME new pictures, Dave! (23 Replies)
  62. HP 85 drive belts (1 Reply)
  63. HP 32S Manual (5 Replies)
  64. Programming trouble (12 Replies)
  65. Bearing to sunrise & sunset. (2 Replies)
  66. HP Jornada 540 battery (0 Replies)
  67. Re: 42S display background matrix - Can it be "deleted"? (4 Replies)
  68. HP-IL/RS232 made by "Firmware Specialists" (2 Replies)
  69. 32SII (4 Replies)
  70. HP KeyWand HBKW-1220? (0 Replies)
  71. HP-25: More common problems? (4 Replies)
  72. hp9121 3 1/2 inch dual floppy drive (9 Replies)
  73. HP 27 manual (1 Reply)
  74. Re: "99 digits of Pi"; BONUS: A 32sII, HP, Carly rant (3 Replies)
  75. HP-25 display weirdness (0 Replies)
  76. shorting HP-41 cont. memory capacitor (8 Replies)
  77. Is there an excellent compiler for HP-71B? (1 Reply)
  78. Flag -102 on HP-49G. (2 Replies)
  79. using an 82164 to transfer data between a 41 and a PC (2 Replies)
  80. Contacting HP ... (21 Replies)
  81. Katie: Questions Re. your "99 digits of Pi" article (9 Replies)
  82. High-end HP calcs discontinued? (6 Replies)
  83. 42S display background matrix - Can it be "deleted"? (8 Replies)
  84. Repair of a HP-97 printer (2 Replies)
  85. To revive a HP-97 (1 Reply)
  86. Re: 42S display background matrix - Can it be "deleted"? (0 Replies)
  87. HP-41 Card Redera ROM Versions (6 Replies)
  88. A big capacity extended memory for HP-71B (0 Replies)
  89. HP 91 (1 Reply)
  90. Bode Plot (1 Reply)
  91. Capacitor lifetimes (3 Replies)
  92. Lubing slide switches on LED models? (Spice, Woodstock, Classic, etc.) (4 Replies)
  93. possible online source of HP calculators (2 Replies)
  94. HP-41 Module Museum (I am working on it) (3 Replies)
  95. connecting an hp41 to an hp75 with hp-il (4 Replies)
  96. HP28S hardware hacking help? (3 Replies)
  97. a lot more on handheld case screws (0 Replies)
  98. Unable to clear HP-41cv MEMORY LOST error (3 Replies)
  99. despite the likelihood of more squishy keys (13 Replies)
  100. HP 10, 11, 12, etc. C series. (3 Replies)