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List: classiccmp
Subject: Re: Tri-Data Cartrifile parts/interfaces/tapes?
From: jim stephens via cctalk <cctalk () classiccmp ! org>
Date: 2020-06-25 20:15:50
Message-ID: ee036393-0180-9c4a-ec60-f70650800741 () jwsss ! com
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On 6/25/2020 11:18 AM, Josh Dersch via cctalk wrote:
> Hi all --
>
> I picked up a Tri-Data Cartrifile 4096 at VCF West last year and since I'm
> suddenly going to have more time on my hands, I thought it'd be fun to see
> if I can get it running again. The Cartrifile is a tape drive that uses
> cartridges containing continuous-loop 1/4" tape in various lengths, much
> like 8-track tape though in slightly different packaging and with a fixed
> head. 10ips, 600bpi. (There's a brochure on Bitsavers at
> http://www.bitsavers.org/pdf/tridata/Tri-Data_4096_Brochure_Feb69.pdf)
>
> The unit I have has a PDP-8 compatible interface, though I only have the
> cabling and rear-bulkhead for posibus systems. (My 8/I is currently
> negibus, so some work will need to be done there.)
>
> It's in pretty decent shape and I think I should be able to get it to work
> again. I also have a stack of cartridges and it remains to be seen how
> they hold up. If they're anything like 8-track tapes, the EOT marker will
> probably fall off and the tape ends will need to be reconnected as well
> :). At minimum I hope to be able to recover the data off the tapes I have.
>
> Curious if anyone out there has one of these, has any spare parts, or
> interface parts (there was at one point an Omnibus interface available, and
> having the negibus interface would be extremely handy.)
>
> Thanks as always,
> Josh
>
I have (had somewhere) two of them. Mine had I think unformatted NRZI
interfaces. I ran them on the same controller as the formatted 9 track
800bpi NRZI on my 1600 systems.
I think I had one that had a different interface, but forget the
details. I had about half a dozen of the cartridges as well. They
worked well at the time, not sure how well the media would have aged,
but I suspect similarly to any 8 track tape or 4 track audio tape if it
doesn't shed.
I'll keep an eye out, but you know my situation having moved may be a
while if ever when I see them. I think they may be optical EOT BOT,
but you may know already.
Thanks
Jim
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