On Tue, Jul 20, 2021 at 4:06 PM Jay Jaeger via cctalk
<cctalk at
classiccmp.org <mailto:cctalk at classiccmp.org>> wrote:
On 7/20/2021 6:59 AM, Eric Moore wrote:
? ? ? >> 11) ESDI disk emulator
? ? ? >
? ? ? > I am not aware of any such beasties in the wild.? MFM,
yes, but I
? ? ?haven't seen ESDI.? ?I would love for
such a thing to exist,
? ? ?thinking of my Apollo, 3B2 and IBM RT/PC workstations.
? ? ?I?d also love to have one of these, preferably using SD or CF
? ? ?cards.? The Webster WQESD/04 card is a fantastic card, it?s only
? ? ?downfall is that it works with ESDI drives, rather than SCSI, and
? ? ?they?re big and loud. :-)
? ? ?Zane
http://www.datexdsm.com/ESDI.php <http://www.datexdsm.com/ESDI.php>
<http://www.datexdsm.com/ESDI.php
<http://www.datexdsm.com/ESDI.php>> is
what I was thinking of. There are a couple other
commercial
models out
there on offer, no one seems to have one though
in the discord or
apparently here :)
-Eric
I fear these, as well as those shown on one or two other websites, are
vapor-ware.? The MFM emulators all seem out of stock, the ESDI emulator
(DWX750) "documentation" is not even a page - just a "blurb".
I had a similar experience with a set of emulators made by Arraid -- LCM
inquired about one of their SMD emulators
(
https://www.arraid.com/data-storage-products/product/aem-1.html
<https://www.arraid.com/data-storage-products/product/aem-1.html>) and
the response we got was "we can no longer source the parts to
manufacture these, we have a few remaining in stock that we will sell
for $10,000 a piece."? We did not purchase one.
I suspect that even if you could find someone to sell you one of these
emulators, they would be extremely expensive.? I have never seen one for
sale on the used market.? If you find one, consider yourself lucky.? If
anyone *DOES* have one of these SMD emulators and wants to find a new
home for it, do drop me a line.
- Josh
JRJ
For SMD, this patent may have been a bit of a stumbling block at one
time, though if it was approved, it would have expired long ago.