[GreenKeys] paper tape variants

[Michael O'Day]

I preferred the fan fold w/ mylar center. I had several plastic parts boxes full of test routines on tape, and the mylar held up better, especially when the mechanical readers were slightly out of adjustment, and they would punch extra holes in the yellow plain paper tapes, or simply tear them in two along the sprocket holes. I must admit I don't recall seeing the oiled type.

Mike - N9ODM



--- On Wed, 8/12/09, John Nagle <nagle at animats.com> wrote:

From: John Nagle <nagle at animats.com>
Subject: Re: [GreenKeys] paper tape variants
To: greenkeys at mailman.qth.net
Date: Wednesday, August 12, 2009, 10:48 AM

> yes, there really was "other" than just yellow (or buff)
> colored tape during the heyday of the teletype machine.

      5-channel tape tended to come in yellow, but 6, 6, and 8
channel tape came in other forms.

      Black tape was for photoelectric readers.  Flexowriters
used 6-channel tape, usually pink fanfold.  Burroughs used
7-channel tape, on 8-channel stock.  Both oiled and unoiled
variants were used.

     There was also metalized Mylar tape, a material like Tyvek, used
for long wear in endless loop applications like early numerical
controlled machine tools.  This was hard on punches but lasted longer
in readers.

                John Nagle



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