By coincidence, today I started evaluation of a punched/optical card reader.
Model TM200, made by Documation Inc.
Naturally I have zero information on it so far.
Does anyone know where I'd find a service manual or schematics?
Pics here:
http://everist.org/pics/TM200/
It will get a writeup at
http://everist.org/NobLog/ if it seems to be a feasible
restoration.
The immediately obvious problems:
* Mains input connector is one of those old round locking type. Not sure if I have any of
these.
* 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.
* Ouch, that interface connector.
I wonder where I'm going to find some card stacks for testing it? If I get that far.
Guy
At 07:13 AM 21/09/2018 -0700, you wrote:
Mr. Hollerith's house is available.
https://www.wsj.com/articles/forgotten-tech-pioneers-d-c-estate-asks-almost-
19-million-1537456578?emailToken=bb675bfcb9f6274f6e8c1b05ae28f2344xumjbywJXs
AwzIJYvBg3RJlRIZHZMV6ZNib7ahvK98qrcXxNgBADqPZCBCTTSWKSViH7isyQ4Ra78fLGOUMQtm
bpNzGJ7UynZ+6QLN+6DJX7vdRFal288hJJHrIqDHw