[cctalk] Re: Rainbow 100 and Univation Hard Disk

Thanks, Warner! A couple of things - #1 my Rainbow actually turns out to be a 100B after all. I just assumed it was the A model, but on closer inspection I'm wrong. It's a 100B2 and even has the hard disk boot option ("W") on the menu. Doesn't work, of course - it just complains that the drive is not ready. So this machine could support the DEC hard drive controller, but apparently whoever bought it originally didn't want that. I notice that your github has a UNIV211.BIN and a PATCH.211, where as my Univation diskette has UNIV205 and PATCH.205. Is that by any chance the MSDOS version? V2.05 or v2.11? Since I have a 100B I should be able to run MSDOS 3.11 if I can find a copy of the Rainbow version; do you know if there was ever a UNIV311.BIN, etc? Univation did a nice job on the modification. The half height hard drive and an auxiliary daughter card (which I assume is the SASI to MFM adapter you mentioned) fit nicely in an all around metal enclosure the size of a full height drive. The drive itself is 20Mb and I wonder if it's a plain old ST-225, but I haven't tried to disassemble the enclosure yet to find out. It's still working, so I'm reluctant to mess with it. If you can put up the scans of your manuals somewhere, I'd appreciate it. And thanks again!