[GreenKeys] Restored AN/FGC-25 Teletype Set Demos

Wed Jun 24 10:22:40 EDT 2015

Hi:

Dave here from the CommCenter-1 Group. Great work on restoring that  
AN/FGC-25!!
It is nice to see at least one has survived over the years, especially when 
 you consider
that the Army alone had thousands of them. I worked in CommCenters during  
the
1960s, 70s and 80s, and these were standard-issue machines in  
fixed-stations.

There were several ways in which they were employed:

a. as Off Line machines for preparing messages for transmission, or what we 
 called
the "local repunch" configuration (the patch board inside the TT-178/179  
determined
the machine's operational characteristics). When operated in this manner,  
it operated
much like your demo indicated.

In this configuration, the AN/FGC-25 could also be operated as a  
Half-Duplex
machine.

b. Full-Duplex On Line. Usually this permitted the keyboard and the TD to  
be 
operating on the Send side, while the printer and perforator worked on the  
Receive
side. It was common practice to run both the printer and perforator  for 
incoming
traffic (we always made tapes of incoming). This was necessary because  some
CommCenters had to further relay traffic to tribs.

c. In later years, an during the AUTODIN era, most AN/FGC-25s  were heavily 
rebuilt
and modified along with heavy TEMPESTing. This included the removal of  most
of the electricals inside the TT-178/179s, making the printer's keyboard  
inoperative
and essentially turning the 25 into a dumb terminal machine. They also  
received
larger motors made by Bendix, and all such modified machines were changed  
to
operate at 100 wpm. With all the new mods, they were renomenclatured  as
AN/FGC-161s. Such AUTODIN installations were referred to as Mode V  
stations.

Hope this helps. Thanks for saving a great machine!

Dave
CommCenter-1
----------------------------------------------------------------------------
------------------------------------------------------------

In a message dated 6/21/2015 2:33:26 P.M. Eastern Daylight Time,  
greenkeys at mailman.qth.net writes:

Hello,
This is my first post so not sure if this will work  right. I am responding 
to a message (appended after my message below), that  was posted about 5 
years ago. I hope this will be of interest to someone. I  hope 
Dave/CommCenter-1 is still around?

In 1977-78 I acquired and  restored an AN/FGC-25 teletype set. This past 
year I pulled it out of storage  and restored it to operation. I recently 
posted these demonstration  videos;

Episode 1   http://www.zippcast.com/video/a73d8b3f9842714ee97
Episode 2   http://www.zippcast.com/video/a722081e609549512fa
Episode 3   http://www.zippcast.com/video/bee7e30fdfdb47e24da
Episode 4   http://www.zippcast.com/video/31acf5aa666f99256a9
Demo of Reading TTY Paper  Tape into Win7 PC  
http://www.zippcast.com/video/8a0f40e3806bff93b64

-End of my  Message-
----------------------------------------------------------------------------
-------------------------
The  following message  was posted on this forum in 2010;

[GreenKeys]  FW: Save a Kleinschmidt AN/FGC-25X (ASR teletype)
Thomas Kleinschmidt  tomkleinschmidt at comcast.net
Fri Sep 24 07:26:32 EDT 2010

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FYI
From: NNN7DXB at aol.com [mailto:NNN7DXB at aol.com]  
Sent: Thursday, September 23, 2010 10:15 PM
To: duncanancy at  earthlink.net; gil at baudot.net; biggrod at wowway.com;
tomkleinschmidt at  comcast.net
Subject: Save a Kleinschmidt AN/FGC-25X (ASR  teletype)
All:

Some new contact info at Tobyhanna Army Depot, if  anyone is 
still interested. I had (earlier) queried them about possibly  obtaining
a Kleinschmidt AN/FGC-25X teletype machine, since they had  recently
unloaded about 40 tons of them for destruction. I was seeking  one
for my den as a souvenir or keep sake (i.e. room decoration) if  the
price was affordable and if any were still available.

My request  has not yet been acted upon but they did send me a survey(!).
There is  other contact info in the email in case anyon else wants to
bug them for a  machine (or two) before they are all gone. If you will
recall, about 40  tons of new (and used) 25Xs were slated for disposition
to DoD civilian  auctioneers (scrappers).

As a matter of interest, few 25Xs have been  preserved and even fewer
are in the hands of collectors, compared to Model  28s, 15s, 33s, etc.

Good  luck,

Dave
CommCenter-1

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