Manual for Documation TM200 punched card reader

Warner Losh imp at
Sat Sep 22 23:07:12 CDT 2018

On Sat, Sep 22, 2018, 9:53 PM Ethan Dicks via cctalk <cctalk at>

> On Sat, Sep 22, 2018 at 10:34 AM, Guy Dunphy via cctalk
> <cctalk at> wrote:
> > By coincidence, today I started evaluation of a punched/optical card
> reader.
> > Model TM200, made by Documation Inc.
> >
> > Pics here:
> >
> > The immediately obvious problems:
> > * Mains input connector is one of those old round locking type. Not sure
> if I have any of these.
> I have an M200 and I just had to look up in the docs (on bitsavers)
> that my unit requires a Hubbel
> 7484 for the power cable.  Yours is different but it's likely to be
> some sort of Hubbel product.
> > * Hose from vacuum pump to pickup heel is hardened. Needs replacement.
> > * Plastic elbow fitting for vacuum to pickup heel is broken in half.
> Make new one.
> > * Plastic mount for status display lights is cracking around brass nut
> inserts.
> > * Four rubber transport rollers have de-vulcanised, melted, and flowed
> gunk. Urrgh, what a mess.
> Hmm... I probably need to look into mine for similar things.
> > * Ouch, that interface connector.
> Fortunately, my M200 came with a factory add-on board that's an RS-232
> interface to the upstream host.
> > I wonder where I'm going to find some card stacks for testing it? If I
> get that far.
> An old co-worker buddy of mine gave me a box of his punchcards when he
> was in school in 1970.  He's really on me to read them.  I don't want
> to put his in first and have roller goo or something else ruin them so
> I have a bit of exploration to do.

How many cards are in the deck?

If it's not a lot, you can carefully number the cards in pencil, then run
them through a document scanner... though the OCR process might be a


I'll be interested to hear how your saga unfolds because I'm expecting
> all of that and more on mine.
> -ethan

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