[GreenKeys] Printing punched tape on my model 15 is FIXED!!!
Derek Cohn/WB0TUA
vibroplex at mindspring.com
Tue Apr 26 00:57:40 EDT 2011
Hi Guys,
Thanks to the members of the list, my problem is solved. Unfortunately, the problem was between my ears.
I did another test and ran the output of ITTY to my Model 15 and got perfect printing....here is the sample:
http://www.mindspring.com/~vibroplex/tty_problem4.jpg
That narrowed the problem down to tape that I was punching and playing back myself. I got two good suggestions from the greenkeys members:
1) Rice gave me three suggestions for making adjustments that affect the printing of the first column.
2) Don House pointed out that the "fox box" generates a CR-LF-LTRS at the end of each line and that my TD must not be sending the LTRS correctly and the LTRS is required to seat the carriage properly. Well, the reason that the TD was not sending the LTRS character correctly is because I was not typing it! I was just doing CR-LF and then typing on my merry way.
Being a lazy bum, I decided to check out Don's suggestion before trying to adjust my machine ad potentially make things far worse. I typed another paragraph of info (complete with more typos) but hit LTRS after CR-LF. I played the tape back 3 times and could not get the problem to reoccur. Here is what it looks like now:
http://www.mindspring.com/~vibroplex/tty_fixed.jpg
Now, I just need to figure out how to type my Morse Day welcome message without typos.
By the way, to those of you reading this message from overseas...I know that Morse's contribution to the telegraph is widely thought to have been exaggerated and that the experiments of Joseph Henry were likely more responsible for the invention. Also, the "Morse" code is thought my many scholars to have been the invention of Alfred Vail, Morse's assistant. All this is way too complicated to communicate to the visitors who are coming to the Wabash depot in Ferguson, MO for Morse Day and want to watch things go click and clack.
I am very grateful to Rice and Don for their suggestions and I think I'm back on track!
73,
Derek
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