[GreenKeys] [External] Which letters on tape?...

Jones, Douglas W douglas-w-jones at uiowa.edu
Sun Jun 29 23:14:44 EDT 2025


From: E. <hanyou at xsmail.com> -- Sunday, June 29, 2025 7:34 PM

> I remember that on a tape punch — in order to make one side of the tape look more obvious that it was the start of the tape.

I have no knowledge of existing conventions for this, but the Baudot sequence
A E G S A E G S
will make something resembling >> in punches on the tape.  Put this before the leader and it's almost as good as having the tape pre-printed with arrows indicating which way the tape is supposed to move.

If you're in the 7-bit world of ASR-33 land, try (for the same reason) try
Control-H Control-P $ B Control-H Control-P $ B
to get a similar >> punched.

              Doug Jones






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