Free punched card deck machine, suitable to make reader and punch

Carl Claunch carlclaunch51 at gmail.com
Sun Jul 4 15:11:36 CDT 2021


The machine is 41" wide, 22" deep and 22" high.

Total guess is 200 pounds, might be a bit less.

I have a hydraulic lift cart that can be used to roll it to a car and lift
it to the bed height, but someone has to be able to lift it up onto the
cart and then off the cart at its final destination assuming we bring the
cart to its new home.

Carl

On Sun, Jul 4, 2021 at 12:50 PM Curious Marc <curiousmarc3 at gmail.com> wrote:

> Carl how big and heavy is it? I thought it was way bigger. I might take
> it. Someone will have to help load/unload in the car due to my injured
> back...
> Marc
>
> > On Jul 4, 2021, at 10:29 AM, Carl Claunch via cctech <
> cctech at classiccmp.org> wrote:
> >
> > I bought this years ago for a planned project to create a card reader
> and
> > card punch for a mainframe replica, using this machine that was designed
> to
> > reproduce decks of punched cards. It is very heavy and sturdy.
> >
> > It has two input hoppers and two stackers, one for the source cards and
> one
> > for the punched copies. The punched head is cooled by ammonia gas,
> > indicating that it was designed to operate at a healthy rate of cards per
> > minute if it needed that kind of cooling. A keypunch, by comparison can
> > punch cards at about 20 cpm with no need for cooling, so I estimate this
> > could run at hundreds of CPM.
> >
> > This is ideal for a hobbyist would would convert it so that it reads
> cards
> > into some kind of mini, mainframe or other computer device, with the
> other
> > side able to punch contents from the same computer onto blank cards. This
> > works with the standard IBM '5081' style 80 column punched cards.
> >
> > I am moving in 12 days and would need to send this to the scrap yard if
> > someone isn't interested. I can hold it here until July 12th or 13th
> > latest. You will need to bring help to move it as it weighs a few hundred
> > pounds.
> >
> > Pictures at -
> >
> https://sfbay.craigslist.org/pen/sys/d/los-altos-free-punched-card-reader-punch/7346150919.html
>


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