HP-65 collection

[Don Shepherd]

(06-25-2014 01:59 AM)rprosperi Wrote:  

(06-25-2014 12:28 AM)Don Shepherd Wrote:  A forum member told me how to cut the corner on an existing blank card and use that to fake the copy-protection circuit and re-create the standard pac programs on the original cards, and that worked fine also. This forum is truly great.

Can you elaborate on the procedure? I've heard this a lonnnng time ago at a PPC meeting, but have frankly forgotten how it worked.

Also, (somewhere) I have some of the little card holders (like those in the photo but blank/generic) from an HHC back in the 80's; I will look for them. They are so much more refined than the 41C booklets, but less easy to use.

Sure Bob. This was from another forum member several years ago, I cut out the text and kept it with my 65 manual and eventually tried it and he was right, it worked like a champ:

You can write to protected cards easily with an "unprotect" card. Take an old card that you aren't otherwise using and cut its bottom right corner off so its right side is at a 45 degree slope to the upper right corner. Then, if you gently put that into the exit port of the card reader (the left slot), you can write to a protected (cut corner) card. The protected card will push this one out of its way as it goes through, but this cards's pointed corner will fill the gap of the protected card's cut corner, fooling the HP-65 (or 67 or 97).