[GreenKeys] OT - Prepare to get your mind blown - you think Teletypes are complicated?

Joe Clanin macbax1 at gmail.com
Tue Feb 2 00:45:54 EST 2021


For anyone following along on this thread, the

>6 bit machine that looked like the model 15

was probably something along the lines of the machine pictured in the
attached photo of my Model 20 RO. Check out the extra bellcrank! Bill
Buzbee's machine is also an excellent example:
http://www.baudot.net/teletype/M20.htm . Mine was an AP machine at a small
town newspaper in South Dakota.

-Joe

On Mon, Feb 1, 2021 at 11:36 PM Harold Hallikainen <harold at w6iwi.org> wrote:

>
> > The Linotype was invented in 1884, so it pre-dates Teletypes by several
> > decades.  These made a Teletype look simple.  A friend sent me a link
> to
> > this film documentary that was made in the 1950s and later converted to
> > video and uploaded to YouTube.  It takes 35 minutes, and the video
> > quality is not all that great, but is well worth watching.  Note the
> > Teletype connection near the end...
> >
> > https://youtu.be/EzilaRwoMus
> >
> > Enjoy
> >
> > --
> > 73
> > -------------------------------------
> > Jim Walls - K6CCC
> > jim at k6ccc.org
> > Ofc:  818-548-4804
> > http://members.dslextreme.com/users/k6ccc/
> > AMSAT Member 32537 - WSWSS Member 395
> >
>
> Will definitely look at that! There is a film from last year at
> https://linotypefilm.com/ that is also impressive.
>
> My college newspaper had a Linotype. Wire service copy came in on a 6 bit
> machine that looked like the model 15. They also perforated tape as the
> copy came in. I always thought it was clever that the start of each story
> printed overtyped garbage on the printer but showed up as a dot matrix
> story number on the perforated tape. An operator could quickly scroll
> through the tape looking for the desired story number, tear it off, and
> take it to the Linotype.
>
> The school newspaper did an interesting process with the Linotype. The
> lead lines of type were put in a proof press and a single copy of the
> column of text was pulled. This was then pasted up on the page layout. The
> page layout was then photographed and an offset plate burned from that.
> The newspaper was then printed offset.
>
> The Linotype room also had a couple "modern" electronic typesetting
> machines. One of these had a loop of film on a drum. It had each character
> on the film. As the drum rotated, a strobe would flash when the desired
> character was in position, exposing the output film with that character.
> The output film would move and the next character would be flashed.
>
> The other modern electronic typesetter used a square film matrix. A series
> of mirrors, each with two positions, would flip back and forth based on
> the binary code for the character. This would complete a path from the
> desired character on the matrix film to the output film, and a strobe
> would flash.
>
> Amazing stuff!
>
> Harold
> https://w6iwi.org
>
>
>
> --
> FCC Rules Updated Daily at http://www.hallikainen.com
> Not sent from an iPhone.
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