[GreenKeys] Kleinschmidt FN-52/GGC restauration

Sun Nov 11 11:06:50 EST 2018



    "Old ideas die hard"
Now that I think about it, the TMs used the term "TD "
Duncan K2OEQ 
Sent from my Kleinschmidt TT-4/TG.The US Army's first portable digital communications device, 1950-1980.

    
------ Original message------From: Steve GarrisonDate: Sun, Nov 11, 2018 05:48To: Duncan Brown;Cc: greenkeys at mailman.qth.net;Subject:Re: [GreenKeys] Kleinschmidt FN-52/GGC restaurationI'm sure you Army ground pounders will take issue with us AF wienies, but we still referred to the Kleinschmidt tape readers as "TD's." 😁Steve G./N4TTYSent from my iPhone> On Nov 10, 2018, at 10:15 PM, Duncan Brown  wrote:> > Nick,> > First, the official nomenclature of the unit is the "TT-76/FG", major component of the AN/GGC-3.  This was the standard tape machine for the US Army from c1952 - c1990. There may be a "TT-76" label under the paper holder.> > This unit was its own table (which is where the FN-52 label comes from), with legs that screwed into the base. Later units (TT-76A, TT-76B, TT76C) did not have the legs and also had different electrical connectors. Most of the mechanics were the same, however.> > The original manual is TM 11-2225. Then they changed the numbering system and the newer manual is TM 11-5815-238-xx, where xx=12 for operator's manual; xx=35 for maintenance manual. If you don't have a manual, they can be downloaded at http://rattrig.com/manuals/tm's.htm. Look around that site to see how these machines were used by the US Army.> > These units are fairly easy to work on, as most everything is out in the open. Note that the reperf requires 7/8" paper tape; it prints on the wide edge. But the Tape Reader (no "Transmitter Distributors"  in Kleinschmidt equipment!) will take the narrower, 11/32" tape.> > One thing to look out for is that the selector magnet uses a DC current bias (instead of a spring) which makes the Red Receive cord polarity sensitive..> > With the power on, but motor off, and the Selector sw in position 3 "Local Repunch", press a key and turn the motor by hand (CW - I think) and you should see the machine do its thing.> > Give it a good cleaning & lubricate all the felt clutches and it should be good to go!> > Have fun,> > Duncan, K2OEQ> USASA    31J30> > >> On 11/10/2018 10:54, Nick wrote:>> I aquired this machine a few months back and I am ready to bring this little marvel back to life. Never worked on one of those before and I am wondering if you guys know what to watch out for - anything special, difficult, tricky, sensitive, headache creating, etc ?>> >> In my workshop as I type to figure things out. Attached are a few pics.>> >> Nick  -  N0NCQ>> >> >> >> Sent from my T-Mobile 4G LTE Device>> >> ______________________________________________________________>> GreenKeys mailing list>> Home: http://mailman.qth.net/mailman/listinfo/greenkeys>> Help: http://mailman.qth.net/mmfaq.htm>> Post: mailto:GreenKeys at mailman.qth.net>> >> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html>> >> This list hosted by: http://www.qsl.net>> Please help support this email list: http://www.qsl.net/donate.html> > ______________________________________________________________> GreenKeys mailing list> Home: http://mailman.qth.net/mailman/listinfo/greenkeys> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:GreenKeys at mailman.qth.net> > 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html> > This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html
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