[GreenKeys] 6 bit Teletype reperf

dmm at lemur.com dmm at lemur.com
Tue Dec 3 10:16:13 EST 2019


A report, a question, and some photos:

The 6-bit Teletype(setter) Reperforator listed on ebay is now safely
in my car (which is in my garage - that's the amazing thing :-)
Rather than risking shipping, I just drove down to get it; it was
only 275 miles from me.

This is a "bare" unit without its cover.  Here's a photo
of a different TTS Reperforator with its cover (and an external tape reel
and its table):

<http://www.galleyrack.com/temp/tts-reperforator-loft.jpg>


My question has to do with something that Duncan said when he 
identified the ebay unit.  I'm sure that I must be misunderstanding
something.  He wrote:

>It typically sat on a little dolly under the M19 table

Does this refer to the regular 5-level TTY reperforator, or to
the 6-level TTS unit?  

I am *presuming* that it refers to the 5-level TTY reperf, because
to the best of my knowledge neither TTY nor Fairchild ever made
anything like a 6-level version of the Model 15 or Model 19 setup.
Or am I wrong?  Did they?
A TTS perforator requires additional counting equipment to handle
set (character width) and spaceband expansion, and a way of indicating 
line length ranges to the operator.


Just because it's easy, here's a lineup of the rest of the office-side 
components of a Teletype-vintage (vs. Fairchild or later) TTS system 
(that is, less the linecaster Operating Unit):

An ex-AP Model 20 printer:
<http://www.galleyrack.com/temp/tts-model-20-printer-loft.jpg>

A Standard Perforator:
<http://www.galleyrack.com/temp/tts-standard-perforator-loft.jpg>

A 6-level Transmitter-Distributor (sitting on an unrelated typewriter stand):
<http://www.galleyrack.com/temp/tts-transmitter-distributor-loft.jpg>

A Multiface Perforator:
<http://www.galleyrack.com/temp/tts-multiface-perforator-loft.jpg>

(Sitting on the Multiface Perforator are two instances (one wrapped)
of the rarest part of the system:  the counting magazines for the
Multiface Perforator.  These seem always to have been removed and lost.
The two in the picture were a gift from a friend in Belgium
who acquired them accidentally with unrelated equipment.)


My thanks to the list for bringing this TTS Reperf. to my attention.
6-level equipment in any form is scarce.

Regards,
David M.
===
Dr. David M. MacMillan - dmm at lemur.com 

   The first rule of intelligent tinkering is to save all the parts.
       - Paul Ehrlich (1854-1915); Aldo Leopold

www.CircuitousRoot.com   *  www.Lemur.com





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