The thing that struck me when I initially got involved with Fred Vecoven to test the FreHD was the potential for the device to be used on machines other than the TRS-80.
The FreHD emulates a WD1010 Hard Disk controller + Hard Disk combination. Western Digital Hard Disk controllers were fairly common in the early 80's with many available as after market additions for the Z80 + CP/M machines of the day. I definitely recommend reading the archives of "The Computer Journal" and "Micro Cornucopia" to get a feel for how this hardware used.
I have an interest in early 80's business machines so in addition to the TRS-80's I have a Kaypro 4/83 (81-240-n) that I picked up in early 2013 on the local auction site. The Kaypro worked fine after the standard power supply capacitor replacement and as the TRS-80 side of the FreHD development wound down I started wondering if the FreHD could be made to work with the Kaypro......
See the Project Pages..
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