We had lots of Model 43 TTYs at Bell Labs in Holmdel.  The print was beautiful, the keyboards had a terrific feel, and could be hefted and moved by a single person.  

And then glass terminals with Emacs came into prominence and the 43s (most often used with Unix ed, a line oriented text editing program) were put in a bin that the porters wheeled away, likely to the mechanical graveyard.  And I didn't even rescue one of them.  I had moved on to Emacs.

I still cry myself to sleep some nights when I think about that, 40+ years later.

Paul, ad7i

On Thu, Jul 10, 2025 at 8:01 PM Harold Hallikainen via GreenKeys <greenkeys@mailman.qth.net> wrote:


On Thu, July 10, 2025 4:44 pm, Nick England wrote:
> 7x9
> https://www.navy-radio.com/tty/ugc136/ugc136-ad-1.jpg

That looks pretty good! I assume there is no lower case (as I recall,
these can do ASCII or Baudot). I think the Teletype model 43 looked a bit
better (and included lower case with descenders). Some model 43 output is
at https://bh.hallikainen.org/uploads/HfDrc190.pdf#page=14 .

 I've done a lot of projects using Unifont (
https://en.wikipedia.org/wiki/GNU_Unifont ) that uses either an 8x16 or a
16x16 bitmap for each glyph. In products I designed (before retiring a
few years ago), I included the first 65,535 Unix code points. That covers
upper and lower case ASCII plus a lot of glyphs for Japanese, Chinese,
Korean, Arabic, etc. In thos products, I wrote code that converted UTF-8
to 16 bit characters which then indexed into a 1 MB SPI flash to get the
bitmap. In the DSP TU, I used just the ASCII range (all glyphs 8x16) to
drive the display for the menus.

All fun stuff!

Harold



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