On the cover of the kilobaud article "Floppy Disks...What's the real story" from March 1977 there is a PerSci 1070 floppy controller. b
On Fri, Jun 26, 2015 at 7:11 AM, Santo Nucifora <santo.nucif...@gmail.com> wrote: > Last night I was able to read the EPROMs on the second of the two Persci > cards and embedded in the code was the string "ERSCI 1170 V F.2-5". I'm > strongly suspecting it's proof that both cards make up a PerSci 1170 > controller :) I have the four 2716 EPROMS dumped in the files area of my > site at http://vintagecomputer.ca/files-area/ . If someone would like to > disassemble them, I'd love to find out more. If there is a tool I can use, > please let me know. I was not able to read the 2708 on the first card at > this point. > > If anyone has any information on the Persci 1170 controller, I'd love to > know if any additional software is required to run it or if I can jump to a > specific address to run it. I do NOT have any disks for this. > > It appears to be an uncommon drive so any information at all would be much > appreciated. > > Santo > > On Wed, Jun 24, 2015 at 7:59 PM, Santo Nucifora <santo.nucif...@gmail.com> > wrote: > > > Hello, > > > > I recently acquired a Persci 2142 dual disk drive with two S-100 > > controller cards. The 2142 is a Persci slim-line case that fits the > > internal Persci 299 drives but also included were to Persci S-100 cards. > > The only thing that makes sense is that one or both of these are the > Persci > > 1170 controller card (set) but I have not been able to find a picture of > > such a card anywhere. There is an 1170 card picture at the Computer > > History Museum but it suspiciously looks like a Vector S-100 prototype > > board with components on it (and not the right amount compare to my > > cards). That page is here: > > http://www.computerhistory.org/collections/catalog/102712583 > > > > I have pictures in my latest post of the front and back of both cards > > along with the Persci 299 drive mechanism and the complete 2142 unit. If > > anyone knows what a Persci 1170 controller looks like, I'd love to know > if > > that's what I have. Is it both cards? I am assuming so because there's > a > > marketing brochure out there with a description of the 1170 controller > and > > the Z80 CPU, as described, is on the second card (not the main card) as > is > > the memory. > > > > Pictures of what I have are here: > > > http://vintagecomputer.ca/persci-drive-is-a-299-what-are-the-controller-boards/ > > > > I can try to read the EPROMS on the second board (they are B2716s) but > the > > first board has a 2708 and I've nothing that will read it. Maybe that > will > > give a clue? I would assume that's where Persci DOS is? > > > > I will be taking the 299 drive mechanism apart and refurbishing this > drive > > as I did the Persci 270 in my Processor Technology Helios II (big thanks > to > > Martin Eberhard for his awesome guide and his help!). Hopefully it's > close > > enough to the 299 that the guide will still be useful. I have yet to > check > > if the glass gauge is intact in this drive or all of this will be for > > nothing. I'll do that when I take it apart. Should be a fun project. > > > > If you have any info, please let me know. It would be much appreciated. > > Santo > > >
