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Old HP Forum Archives

Threads

  1. HP-15C Silver Anniversary! (Op-codes, synthetic matrices) (8 Replies)
  2. Resources used by the HP-IL ISA card (1 Reply)
  3. Battery Doors for Classic Series (4 Replies)
  4. Surprisingly usefal Calc Stand (8 Replies)
  5. Letter to the Editor of Datafile (23 Replies)
  6. welding tabs onto lithium batteries in san jose (2 Replies)
  7. comparing early flex circuit vs late rigid circuit series30 calculators (2 Replies)
  8. HP 50g stack control (3 Replies)
  9. Stack enhancement program (0 Replies)
  10. Two NCEES committees endorse HP-33S (4 Replies)
  11. HP-28 Annunciators (1 Reply)
  12. A Third Order Complex Linear Equation Solver for the hp 33s (4 Replies)
  13. Another Collection (1 Reply)
  14. HP-calc fans in Madrid ? (4 Replies)
  15. Short & Sweet Math Challenge #19: Surprise ! [LONG] (86 Replies)
  16. TI-Nspire available... (8 Replies)
  17. Where to get crystal for an HP-45? (3 Replies)
  18. HP 50g DMS (6 Replies)
  19. HP35s is back (49 Replies)
  20. HP-41 RaceTrack Module (1 Reply)
  21. HP41CV Dead (4 Replies)
  22. Hp-46 printer problem (1 Reply)
  23. EMU71 text file via DOSLINK (1 Reply)
  24. On / Off topic (15 Replies)
  25. HP 50g (1 Reply)
  26. HP-41: a M-code question (8 Replies)
  27. Porting HP41CX programs (3 Replies)
  28. feeling old.... (22 Replies)
  29. Let's play with a 3D model of HP-41C (7 Replies)
  30. Thinning out the harmonic series even more. (3 Replies)
  31. New HP42S (6 Replies)
  32. For Allen RE: New 42S (0 Replies)
  33. Extended Complex Number Calculations in SysRPL (2 Replies)
  34. Norm - Red LED's - and His 34C (3 Replies)
  35. Red light left of display on Spice (32E) (8 Replies)
  36. Opening up a 32E (10 Replies)
  37. A Serious Scientific Instrument Revisited (4 Replies)
  38. revisted: the 4 banger+ (27 Replies)
  39. 12C Question (4 Replies)
  40. From the HP-41C to the HP-48GX and a Broken 97 (1 Reply)
  41. Balky 34c On/Off switch (2 Replies)
  42. New 17bII+? (4 Replies)
  43. Inefficient Market Theory for the HP collector (4 Replies)
  44. HP-29C Quick Reference Guide (5 Replies)
  45. Why not making new 97? (27 Replies)
  46. How to speak the problem? (19 Replies)
  47. My HP-35 has a 1 second counter mode!!! (5 Replies)
  48. (O.T.) Two versions of the Durabrand 828 (2 Replies)
  49. Reconditioning a 42S keyboard and bezel (4 Replies)
  50. 50g - lower serial port bit rates (3 Replies)
  51. EMU41 2.4 ALPHA issue (3 Replies)
  52. 80 col video interface to PC LCD Monitor (6 Replies)
  53. Brightness display HP65 (2 Replies)
  54. HP 41 Keyboard Overlay (2 Replies)
  55. data sheets for Sunplus microcontrollers? (11 Replies)
  56. HP 35c "Classic" Red Dot Anniversary Edition (19 Replies)
  57. How will the 35S affect the value of your collection? (13 Replies)
  58. rpn stack drop (38 Replies)
  59. 42S - Won't turn on (0 Replies)
  60. HP Calculator Video (3 Replies)
  61. Comparing data sheets - 33s and 35s (6 Replies)
  62. More brochures on the HHC2007 website! (6 Replies)
  63. Remember When.... (18 Replies)
  64. HP50G (4 Replies)
  65. Barcode printing for HP41CX on HP2671G thermal printer (0 Replies)
  66. HP 41C premature turn off (3 Replies)
  67. HP 48 GX (6 Replies)
  68. HP-41CX at HP Virtual Museum (2 Replies)
  69. HP 67 Emulator (2 Replies)
  70. HHC2007 website updated with a surprise! (19 Replies)
  71. Seeking Some RPL Tutelage (30 Replies)
  72. Help! Need PDF for new 35s! (5 Replies)
  73. HP-10S on sale already? (14 Replies)
  74. 11C Serial Number 2900A (1 Reply)
  75. What to start a collection with (35 Replies)
  76. Integration function on the 50g? (9 Replies)
  77. HP-32Sii purchased from Ebay not working (11 Replies)
  78. 50G--the accumulated experience to date? (30 Replies)
  79. HP 35S site withdrawn (9 Replies)
  80. HP35 with "The Bug" - latest s/n and version? (3 Replies)
  81. 50g Connectivity Issues (7 Replies)
  82. HP-42S I/O (8 Replies)
  83. HP-41 CV Repair/Battery Contacts (1 Reply)
  84. Paypal problem (11 Replies)
  85. HP-91, HP-97 Printer Service - common issues (8 Replies)
  86. Pr Error HP-34C (4 Replies)
  87. HP-25C Battery Pack (1 Reply)
  88. HP 35 S with coloured Keys (8 Replies)
  89. Timer with splits (2 Replies)
  90. Complex number on HP 35s (6 Replies)
  91. My Ideal Calculator is Impossible (2 Replies)
  92. Displaying part of my collection at the San Diego County Fair (2 Replies)
  93. Yet another HP35S question (23 Replies)
  94. stop moving the keys (4 Replies)
  95. My thinkings about HP35s keyboard layout and main capabilities (0 Replies)
  96. Mercy!! who will send me the PDF about the comming 35S? (4 Replies)
  97. NoVRAM Module (3 Replies)
  98. A Serious Scientific Instrument (82 Replies)
  99. User RPL speed (6 Replies)
  100. HP-34C Intermittent Display (6 Replies)