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Restoring your HP65

 

 

Ignacio Sánchez brought to my attention the Australian company Teenix. They provide replacement board for the HP55, HP65 and HP67 calculators. If you have a broken HP67 calculato, your best bet is to call Teenix and get a board for the calculator. It is a direct drop-in change that will revitalize your calculator. Think about, for example, continuous memory!

I will copy from Teenix's website the feautres of the replacement cards:

  • Drop in replacement for the original CPU boards
  • No soldering required 
  • Runs original HP microcode
  • Supports original features of the magnetic card reader*
  • Programmable option to bypass the card write protection*
  • Bluetooth connectivity
  • Companion Windows application
  • Has internal memory storage for up to 810 program cards (HP-55 100 programs)
  • Supports up to 100 user defined messages that can be displayed from a running program*
  • HP-55 has ability to fine tune timer
  • Can store and recall calculator state
  • Supports a memory dump to the CCE33 Emulator
  • CPU board can be reflashed with program updates - Note: Requires an external adaptor

Note: These CPU boards will not fix problems with the display, keyboard or card reader components, however
if the card reader has failed, you can save and recall programs using internal storage memory.

Teenix also maintains and provides diverse software emulators for said classic calculators: MultiCalc.zip

As I have a Mac I (and I am overflown with repairs), I have not yet tested the emulator, but it covers apparently all the classic models. Scroll down in the main page to see what we're talking about: you will stay for a long, long time in the website!

 

 

 

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