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jay · (This post was last modified: 09-20-2016 02:57 AM by jay.)

Thanks for the tips, everyone. A nice person from HP's forums has provided instructions, and has offered to send me some data quality tape. Here's the link to the thread for those interested:

http://h30434.www3.hp.com/t5/Calculators...-p/5596928

Dave, I would appreciate some real cards. I would still like to try making my own, but it would be good to have some real ones as reference. I don't know of anyone in Canada that could send me some, unless that someone is reading this thread. I could send you some money via PayPal to cover the cost of postage and your time.

Thanks again for your help.

(09-20-2016 01:55 AM)Dave Frederickson Wrote:
(09-19-2016 02:19 AM)jay Wrote: Does anyone have any experience with making magnetic cards? I'm restoring an HP 65 that didn't come with any cards, and would like to test the card reader to make sure it works before spending any money on OEM cards.

I'd question the validity of a test using a homemade card. Duplicating the magnetic characteristics of a mag card is probably not easy. Better to find someone who could send you a few cards. If no one in Canada can help you out, let me know and I'll send you a some.

Dave