All — I haven’t posted to this list in the recent past, mostly posting to VCF or the S100 group. But, I’m trying to cast my net wide looking for some specific things for a project I’m working on.
I’ve done recreations/clones of two Lomas S100 boards – the Color Magic and the Thunder 186 (https://github.com/RichCini/LomasBoards). This set creates a two-board computer that can run unmodified PC-DOS. While it’s PC-compatible, it’s compatible in the Tandy 2000 kind of way. I started work on the Color Magic about 2 years ago, pending reversing the PALs, which happened this year. The Thunder 186 was much easier to recreate, and thus was done in a few months. What this system currently lacks is a mass storage option. Lomas offered a SCSI board (which added an RTC and 4 serial ports), but copies of the manual and schematics aren’t known to exist on the Internet. There’s also a great alternative, the Lifeboat SCSI (for the Z-100 machines), but I haven’t been able to locate the software drivers or firmware for it (I have a manual which has the schematic and PAL equations). Finally, I can almost get Windows 1.0 running on this setup, but it needs custom drivers. I have the drivers from the Tandy 2000 (aka, the "Tandy 2000 MS-Windows Pre-Installation Disk") which don’t work as-is but I believe could with modifications. I posted to the Tandy Discord server but if anyone should know of the existence of these sources, please let me know. Thanks! Rich -- Rich Cini http://cini.classiccmp.org
