Polymorphic System88 disk

[dwight elvey]

> From: frustum at pacbell.net
>
> dwight elvey wrote:
>> Hi All
>> I thought I'd talk about some of the fun I've been having
>> to recover images from some disk.
>> The disk are 5.25 double density, hard sectored.
>> I started with a controller designed for the Polymorphic machine
>> but for double density 8 inch disk.
> ... [ interesting war story snipped ] ...
>
> Dwight,
>
> I've gone through a similar amount of work to recover data off of some
> disks, only to find in the end that the disks contained nothing but back
> up copies of dental records or some such, while I had been hoping to
> find treasure.
>
> Here's to hoping you turn up some interesting bytes. (clink!)

Hi Jim
 Unless someone wrote over all these disk, they should be interesting.
These are archive disk from Polymorphic. I hope that they also contain
the code or source for the 5.25 controller. They may have, at least, the
binaries.
 I have to rig up my 8 inch setup as well. There are just a few 8 inch
disk with the source code for the BASIC they wrote.
 Most of the 5.25s seem have the text for the manuals they wrote. Too bad
they didn't put the graphic parts on disk as well. I've already dumped
images of the SSSD disk. These had copies of the manuals as well,
without the pictures. They did graphics with cut and paste then.
 Dental records would be a real let down.
 One thing I've been careful with is to remove the wire to the write
gate on the disk. With all the fiddling with the software, I wanted to
make sure I didn't accidentally write to the disk.
 It has been a long process, mainly because I've had to balance familly
time with the occational hour or so of experimentation. Each time something
didn't work, it'd take days to weeks before I could spend more time
on the problems.
 I destroyed two 2716s on the project. I think I stuck them in the programmer
upside down. This required another trip to the surplus shop for more spares.
Every time I do significant EPROM work, I think about building a ROM emulator.
Dwight

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