[GreenKeys] Printing punched tape on my model 15 is FIXED!!!

Nico de Jong nico at farumdata.dk
Tue Apr 26 06:17:31 EDT 2011



> Derek Cohn/WB0TUA wrote:
>>  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.
>
> I recall that Telex operators were always trained to end lines with CR
> LF LTRS LTRS LTRS. ie Three letter shifts.
>
That is correct, more or less. Most of us (Telegraph Office, Dutch PTT, The 
Hague),  sent CR, LF, CR, LTRS, LTRS, but all for the same reason : to give 
the printbasket (or whatever syxtem was used) time to return to its home 
position.

This gives me the opportunity to mention ZCZC NNNN, which some of you have 
trouble using correctly.
ZCZC was used in the start of the tape/telegram-, and NNNN at the end. This 
is because this makes it very easy to see where a telegram stops, and the 
next starts, as NNNN gives 4x2 holes in the center of the tape. Z gives the 
two outmost holes, and C the 3 holes in the center. This gives a very 
distrinctive pattern.
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