TRS-80 Disk/Video Interface?

From: James L. Rice <jrice_at_texoma.net>
Date: Mon Aug 25 07:47:26 1997

Roger Merchberger wrote:

> Whilst in a self-induced trance, Marvin happened to blather:
>
> >I was at one of the local thrift stores (a once a month or so
> experience)
> >and found a Radio Shack TRS-80 Disk/Video Interface unit for $0.90
> with
> >manual. Apparently it was marked down from about $3.95 or so to get
> it gone
> >and I was more than happy to help out at that price even not knowing
> what it
> >was. After reading the manual, I still don't know but it talks about
> the
> >portable computer and I see one reference to a model 100. Anyone
> have more
> >information on this thing as far as what it attaches to? The model
> 100 is
> >obvious but since it talks about the connecting it to the Portable
> Computer,
> >are there others this thing might work with? Also since it didn't
> come with
> >a floppy disk, is this just a standard TRS-DOS or is there something
> special
> >about it? Finally, it is missing the connecting cable and does
> anyone have
> >the pinout for it or know where I might find it on-line? Thanks!
>
> Ohhhh... nice buy! They wouldn't happen to have 3 more at that price,
> would
> they??? ;-)
>
> The DVI as it was shortened to would give 180K floppy (40 track, SSDD,
>
> 18SPT) storage and 40x24 & 80x24 VT-52 compatible screen capability to
> a
> Tandy 100, 102 (later, lighter, redesigned 100), or the Tandy 200
> (which I
> own).
>
> [[ Editor's note: Obviously, you need one of the above-mentioned
> portables
> to make use of the DVI... ]]
>
> It needs a special cable that I have seen for sale on comp.sys.tandy,
> and
> at the for-sale listing at:
>
> http://www.value.net/cgi-bin/cgiwrap/~thedock/c100sale.pl
>
> [[ Editor's note: this is a cgi-program accessable from the "For Sale"
> link
> at:
> http://www.the-dock.com/club100.html
> They also have a wanted listing and a guestbook! ]]
>
> It *does* require a boot floppy disk, I believe these are still
> available
> at Radio Shack for a few $$$ apiece (at least in the US... not sure
> about
> other countries) I have a boot disk for the DVI that boots the Model
> 100 --
> too bad it doesn't seem to work with my T200. :-(
>
> I do have the pinouts for the cable, but the connection to the M100
> was a
> specially wired 40-pin DIP cable, that I've heard is mongo-painful to
> try
> to build yourself (and, of course, RS doesn't stock those IIRC). The
> cable
> for the T200/T102 is easier to build with 40-pin IDC connectors and
> ribbon
> cable (I successfully converted an IBM-PC Clone IDE data cable)
>
> If you wish more information on this or most anything else from the
> "Model
> 'T'" world, just let me know.
>
> "Merch"
> --
> Roger Merchberger | If at first you don't succeed,
> Programmer, NorthernWay | nuclear warhead disarmament should *not*
> zmerch_at_northernway.net | be your first career choice.

   As of last week, RS said they could no longer supply the boot disk
fot the DVI. I tried to order one from RSU and while the order went
through at the store, I recieved a letter from RS stating that the DVI
boot disk is no longer available.
Received on Mon Aug 25 1997 - 07:47:26 BST

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:30:24 BST