Re: HP-67 <-->TI-59 card reader repair Message #4 Posted by Michael Meyer on 2 Feb 2003, 5:47 p.m., in response to message #3 by David Smith
Actually, I've repaired many many 59 card readers. Not too tricky. The SR-52's are much harder, but also can be done. Briefly, I unsolder and removed the motor assemblies, glue a rubber plumbing washer to the shaft, power the motor externally to spin the washer, and then use a dremel grinding wheel to grind to the perfect size. Can take a little trial and error, but since the cards can be inserted and tested without the reader in the calc, it's not too difficult. Mine come out quite reliable; at least as good as new.
I hope nobody minds me posting this here... a lot of us collectors collect TI's, too, if for no other reason but to have the machines that competed with the HP.
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