On 5/20/2012 10:31 AM, Fred Cisin wrote:
On Sun, 20 May 2012, jim s wrote:
I wonder what I could get from the assembled
group here to help try to
figure out what terminal might have been used?
Are you asking for a list of all
Navy 5 level tape equipment?
I know we won't guess from the tape, only narrow
the list with the
encoding, but I wanted something that would punch the code on the tape
as opposed to some generic lame photo. In 20 or 40 years when someone
looks at this I just don't want them to point and giggle after doing
whatever passes for google then and saying I didn't try to get it right.
I have this example of a portion of the tape decoded, and the code that
cracked it.
I took the scans which were pretty poor and compared them to the
available codes. So I could have a visual reference, I added a
character representation in the orientation of my tape image.
also had to contend with some <num> and <letter> shift punches. I
suspect this might suggest which tty it was. I've only worked with
punch equipped Teletypes of various models, which don't need such shifts
since they are 8 level. Same for the Telex machine we used which was a
Friden machine at 8 level.
I appreciate the reference to Tom Jennings. As it turns out i have an
ASR33 I acquired from him so I'll try to track down a contact and ask him.
thanks
Jim
http://i1101.photobucket.com/albums/g437/jws1971/paper-tape/page1.png
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http://en.wikipedia.org/wiki/Baudot_code
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International MSB Right mark=1 sp=0
T 01 5 | . *
<cr>02 | . *
O 03 9 | . * *
<sp>04 | . *
H 05 | . * *
N 06 | . * *
M 07 | . * * *
<lf>08
L 09 | * . *
R 0A 4 | * . *
G 0B | * . * *
I 0C 8 | * . *
P 0D 0 | * . * *
C 0E | * . * *
V 0F | * . * * *
E 10 3 | * .
Z 11 | * . *
D 12 | * . *
B 13 | * . * *
S 14 | * . *
Y 15 6 | * . * *
F 16 | * . * *
X 17 | * . * * *
A 18 | * * .
W 19 2 | * * . *
J 1A | * * . *
# 1B | * * . * *
U 1C 7 | * * . *
Q 1D 1 | * * . * *
K 1E | * * . * *
let 1F | * * . * * *