wiki:HpCalculatorSim

This is a retro-tech implementation of the classic HP-25 calculator. I love the HP-25, and wanted to create a larger-than-life (literally) recreation. Using the original chips is out of the question, so I've chosen to use a Z80, which was introduced at about the same time (1976 vs 1975 for the HP-25). I started with some inspiration from Eric Smith's excellent nonpareil simulator and the equally excellent reverse-engineering done by Jacques Laporte (R.I.P.).

Events

HpCalcBuildLog

Hardware

http://ohm.bu.edu/~hazen/HPCalc/retro/case1_sm.png http://ohm.bu.edu/~hazen/HPCalc/retro/kb_pcb_gerber.jpg http://ohm.bu.edu/~hazen/HPCalc/retro/cpu_pcb_gerber.jpg

References

Last modified 2 years ago Last modified on Aug 15, 2020, 10:04:21 AM