Thanks Jason,
Sorry for delay in replying but I have been away. I actually have one of
those. They are ok except that they come with sticky patches, except that
the patches are no longer sticky....
... the person who owns the tapes wants to read the data. The current scheme
is to scan them into jpegs, and then use image recognition to extract the
data. This has been done for punched cards before but not paper tape.
Dave Wade
> -----Original Message-----
> From: Museums Computer Group [mailto:[log in to unmask]] On Behalf
> Of Jason
> Sent: 25 January 2016 15:20
> To: [log in to unmask]
> Subject: Re: Restoring Old Paper Tape (With punched holes)
>
> There's a machine for repairing small damaged sections here.
>
> http://www.cryptomuseum.com/telex/repair/
>
>
> on 22/01/2016 20:19, Dave G4UGM at [log in to unmask] wrote:
>
> > I received this on another list. Is this in scope for this list. Any
> > thoughts folks please?
> >
> > I'm tossing this out here as a conversation-starter more than a
> > request for help, although I may end up putting the knowledge to use.
> > Today I received a set of original HP paper tapes for the 2115a
> > machine. I don't know if they've been archived or not - there are
> > dozens of HP tapes on bitsavers and I'll have to make a P/N list and
> > compare them. The real problem is they're in horrible shape. Decades
> > of basement moisture and likely a few critters have turned them
> blackened, moldy and stuck together.
> >
> > So, what to do? How to get to the data without a bio-hazardous
> > payload along for the ride? My thoughts go toward sunlight and/or U/V
> > light (like a hair salon sanitizer,) rubber gloves and a mask,
> > isopropyl alcohol, careful picking apart of layers, etc. I'd think
> > one thing in our favor is that holes in paper are going to be easier
> > to read than ink on paper. So Part 1 is getting them into readable
> > condition, with part 2 being the actual reading.
> >
> > Any experience out there?
> >
> > -j
> >
> >
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