[GreenKeys] US Army TM 11-2215 (Model 15 Service) online

dmm at lemur.com dmm at lemur.com
Mon Apr 5 23:22:47 EDT 2010


I've just scanned US Army TM 11-2215, "Teletypewriters TT-5/FG and TT-6/FG"
(which in civilian terms means a Model 15 service manual).  It's the June
1951 edition, with Changes No. 1.  I don't recall seeing this one in any 
of the several good archives sites of Teletype material (though I may have
missed it, of course), so I thought I'd put a copy online.  See:

http://www.circuitousroot.com/artifice/telegraphy/temp-telegraphy-pdfs.html

On the positive side, it's a fascinating document - Model 15 operation,
routine maintenance, and fairly detailed service; also sections on
how to unpack one from the Army's rather good crating, and how to
crate one up for shipment.

The negatives all have to do with current practical limitations.

First, these files are rather big.  They total 358 Megabytes,
and even divided into nine unequal sections the largest is still
111 Meg.  (I should probably break it down further.)  I scanned at
600dpi but then reduced in software to an effective 120 dpi.
This means that the results are about as low-resolution as possible
while still being readable.  The basic problem is inherent in the
document - with change notes, it comes to over 400 pages.

If people would like, I could generate a higher-resolution version
more suitable for printing (though it would probably exceed a Gigabyte
and would have to circulate on physical media).

Also, if there are particular images in this low-res version which
need to be seen in greater detail, let me know and I'd be happy to
do individual images at higher resolution.

Second, I didn't clean up each page manually - these are views 
straight off the scanner.  Cleanup would have taken too long,
so I opted for greater information and lesser aesthetics.  My friends
in the graphic arts would no doubt be appalled :-)

If anyone has a need for the original scans, just ask.  I'd have to
mail them on DVD, as they total about 7.2 Gig, but I'd be happy to
have them distributed widely.  Also, if any of the several folks
who have archives of TTY documents wish to add this to their 
archives, please do!

Finally, if you're on narrowband, the one file to get would be the
last one, Part 9.  It is the fold-out drawing of the wiring diagram
for a Model 15 Typing Unit, Keyboard, Base, and Relay (scanned in
three parts and stitched back together manually).  It's only 600K or so.

Anyway, I hope that this document is useful.  I'm having fun with it.

Regards,
David M.
===
Dr. David M. MacMillan * dmm at lemur.com * www.lemur.com & www.CircuitousRoot.com

   First do no harm. (Primum non nocere.)
       - possibly Galen; see also Hippocrates (Epidemics, Bk. I, Sect. XI.)
   The first rule of intelligent tinkering is to save all the parts.
       - Paul Ehrlich (1854-1915); Aldo Leopold




More information about the GreenKeys mailing list