In the first post I mentioned the dag was missing from the monitor, so while the tube is out, lets give the monitor some attention…
Continue reading “At&t 513 Terminal, Part II”At&t Model 513 Terminal, or Teletype 56D, or…
Talk about an identity crisis! I recently stopped by the swap meet at System Source, a computer museum just outside of Baltimore, Maryland, where I picked up this eighties masterpiece of a terminal. This…style terminal I believe is known by many monikers. This actual unit is labeled an At&t “513” on the front, and “Teletype 56D” on the back. (At&t bought Teletype Corp and often branded some of their final products with At&t nomenclature.) This unit was likely paired to an At&t Definity PBX, and simliar units could also be At&t 4425 as well as many other models (likely only minor firmware tweaks between them).
Posted on it was a sign that basically mentioned it was a “barn find”, and as such, no guarantees on it working, or ever working. As I’m a glutton for punishment, naturally I bought it. (I know the seller and he gave me a good deal on it).
Let’s see what’s inside…
Continue reading “At&t Model 513 Terminal, or Teletype 56D, or…”Teletype ASR-33..er…Anderson Jacobson ADT-233
So yeah, after a 16 hour round trip last year to acquire a Teletype ASR-33 that has since been patiently waiting for me to drum up the courage to disassemble and fix the keyboard, I recently acquired ASR-33 #2, however although this one is more or less an ASR-33, its branded as an Anderson Jacobson ADT-233, and has an interesting feature…
Continue reading “Teletype ASR-33..er…Anderson Jacobson ADT-233”Grail Acquired: Teletype Model 19
After watching a CuriousMarc’s series of videos restoring a Model 19 Teletype on Youtube, I HAD to have one. As someone who has an unexplained penchant for vintage stuff, technology, and steampunk (like?) aesthetics, this not only checks the boxes, it hammers them home!
Continue reading “Grail Acquired: Teletype Model 19”Sperry / Univac and Mapper Memorabilia
My last post mentioned that along with the Sperry Uniscope terminal, I found a bunch of Sperry, Univac, and “Mapper” ephemera (stickers, magnets, etc) around it. Apparently the previous owner was a Univac employee and worked with the “Mapper” software, which is still available today from Unisys as “BIS”.
Continue reading “Sperry / Univac and Mapper Memorabilia”Sperry Uniscope 100 Terminal Acquired
Happened upon a “barn sale” over the weekend. Lots of junk and almost left empty handed until I found a side room and spotted this…
I had no idea what it was beyond being a very vintage terminal, so I grabbed it.
Heathkit H89 Acquired!
Recently picked up a new to me Heathkit H89 computer. It actually dons the H19 tag on the back, which means this started life as an H19 terminal, and was updated to a full blown computer by adding an internal motherboard and disk system. This computer runs a Z80 and can run CP/M, H-DOS, Basic, Fortran, and likely anything else a Z80 can do. Since the monitor and keyboard are technically an internal “terminal”, its mostly limited to text and some crude graphics.
Its in great shape, and turned on and worked right away. I did give it an internal once-over to make sure things were seated good and no loose parts rattling around.
More info here: http://oldcomputers.net/heathkit-h89.html
It came with all it’s original books and disks, including Microsoft Basic, CP/M and Fortran. It does boot but it seems to be struggling with accessing the floppies, so it prob needs a good cleaning. Its actually immaculate inside and out.
One interesting part of this computer is it’s floppy system – its one of the few I have that actually uses “hard sectored” floppy disks. What this means is that it actually uses timing holes in the disks themselves to time when a track begins and ends. Unfortunately this means it takes “special” floppy disks, and normal “soft sectored” disks aren’t gonna work, and reading/writing images to floppies for this may be a challenge.
Here’s a few links to some techy info about the H89:
Floppy Format info: http://sebhc.lesbird.com/h8d.html
More info about Heathkit 8-Bit computers in general: http://sebhc.lesbird.com/
Flashfloppy Firmware Discussion: https://github.com/keirf/FlashFloppy/issues/182