paper tape archiving

dwight dkelvey at
Thu Jul 30 10:22:04 CDT 2020

They should be carefully unrolled while wet. It will be almost impossible to unroll them dry.
The same goes for the magnetic tape.

From: Guy Dunphy <guykd at>
Sent: Thursday, July 30, 2020 12:15 AM
To: dwight <dkelvey at>; General Discussion: On-Topic Posts <cctech at>
Subject: Re: paper tape archiving

Be glad you don't have to deal with this kind of thing:

A bunch of PDP 8 system tapes. That were literally soaking in liquid water when recovered.
Yes, that is mildew. They are nearly dried out now.
Still to be determined if they can be manually teased apart intact enough to be read.
After deciphering what they all are, from remnants of the labels and a paper list that
was with them.
Hopefully these are already online somewhere. If not, then a lot of work to recover.

The DEC mag tapes... sigh. Still not even thinking about them. Just slow drying.


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