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  • HP15c
  • HP41
  • HP Prime
  • HP12c
  • Calculators
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  • Repair
  • Offers
  • Resources
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2024 Entries

  • Finance Pac
  • Some battery consumption considerations
  • VoyagerSave for the HP12c?
  • Overlays are here!
  • VoyagerSave Source code
  • More pacs ?
  • New repair method for HP41
  • The HP16c Computer Scientist
  • Overlays for the Aviation Software pac for the HP15c CE
  • Aviation software pac by Geoff Quickfall
  • A rendering of the Aviation overlay
  • A new Open Source Calculator Project!!
  • New website!
  • A new video: how to get a HP16c out of your HP15c Collector's Edition
  • Compiling program sets for HP15c
  • Testing new repair method for HP41c lower posts
  • A request for HP15c heavy users
  • Some clarifications about the HP15c CE
  • A Small Teaser
  • Interfacing with your HP15c CE
  • The innards of a HP15c CE
  • Continuation of "New glue..."
  • Next developments for the HP15c CE
  • Cable VI - what you can do with it!
  • Cable Vb
  • Cable Va
  • Cable IV
  • Battery door for the back door hp19bII
  • Cable III
  • Possible Enhancements to the HP15c CE firmware?
  • Why HP15c CE Enhanced?
  • Reprogramming cable news
  • The function key trick when programming the HP15c
  • The HP15c and HP16c in HP Journal of May 1983 - TheCalculatorStore
  • More about the reprogramming cable
  • Cable for HP15c CE reprogramming
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