[GreenKeys] Kleinschmidt TT-4

[Duncanancy]

David,The TT-4 is a much better choice for a military vehicle!The newer TM 11-5815-206 series of manuals is available on line.More later, have fun,Duncan K2OEQSent from my Kleinschmidt TT-4/TG, the US Army's first portable digital communications device, 1950-1980
-------- Original message --------From: David S via GreenKeys <greenkeys at mailman.qth.net> Date: 3/30/26  22:00  (GMT-05:00) To: greenkeys at mailman.qth.net Subject: [GreenKeys] Kleinschmidt TT-4 I have a Model 28 wall mount that fits in my military truck, but is 100wpm and not really usable on the air.  Will be a great demo piece for shows and such, and if nothing else it IS a printer.I have a Model 28 floor mount that does not fit in the truck (it would fit in a strict sense, but not really be practical with the features it has), but I am working on getting it on the air from my home office, struggling with the terminal units though.My real goal has been to get an on air capable Army Signal Corps model of some sort to use at events and Parks on the Air.  I finally managed to get my hands on a beautiful Kleinschmidt TT-4 machine and I really couldn't be happier.  It will fit perfectly in my setup.I found a really nice copy of TM 11-2234 at a bookstore in southern CA, and have been reading through it.  I am getting it cleaned up, it appears to have been travel locked a long time ago, and it has some very aged grease in it.  It was stored beautifully though.  Very minor corrosion here and there but it is cleaning nicely.  Pictures are with covers removed, but the machine windowed cover and weather cover are both also in good shape.Its tuning fork was missing but I (fortunately) found one on ebay for a reasonable price.  Reading the TM, and seeing this on the deramp youtube video on the tuning fork procedure, it is a fascinating method of setting spin speed.Any tips on getting this TT-4 connected and running?I am not there yet, but I have the deramp interface board adapted to the Model 28, would this be appropriate to drive this TTY, or is it expecting more of the current loop signal a model 15 would be getting?  I have an iRL FSK-1000, but it wont drive the Model 28s, either it isnt working or I am doing something wrong.  Ran though the manual on the iRL a couple of times and haven't cracked that code yet.The only references I see is a handful of youtube vids from gregga1973 and Marks tech channel, not nearly as extensive a reference set as the Model 28.Looking forward to not only getting this TT-4 running, but on the air______________________________________________________________GreenKeys mailing listHome: http://mailman.qth.net/mailman/listinfo/greenkeysHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:GreenKeys at mailman.qth.net>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch>>> 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.htmlThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to duncanancy at earthlink.net
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