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First manufactured by HP in 1979.

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Need Help With HP 41C Calculator Repair

Does anyone know where I might be able to get an old HP 41C Calculator repaired or where I might find information on repairing it myself. Hewlett Packard quit making these probably 20 or so years ago. I have had this one since somewhere around 1980 and it has worked until about 6 or 7 years ago. Since it quit working I have not been able to locate anyone that repairs them. Any help would be very much appreciated.

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did you look at and ?

there are some informations about this device - including repair stuff

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Hi markus--not much info at the first site but I think you may have gold on the second. Including the URL. +1 Ralph


hi ralph, i found some nice stuff on the first one

there is a repair section: and in the library i've seen many hp internals, like service manuals and schematics.


Hi, OK I see what you are talking about. What stopped me was the login requirement. I don't like to do that unless I'm going to be using the site regularly. Ralph


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yes, International Calculator & Computer, in Winter Park FL at 2431 Aloma Av repairs them - since the eighties.

website, email:, phone number 407.671.1991.

His name is Don ORourke

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