65/67/97//41 Home-made mag cards

[blackjetrock]

(09-18-2022 01:41 AM)Kostas Kritsilas Wrote:  All of the models you named use the same card type. The HP-71 and the HP-75 (if it uses cards) are different, and much harder to make, as they have embedded timing marks/tracks due to their being pulled by hand.

Has anyone made these cards? It looks like the timing tracks are recorded magnetically, is that correct?
Has anyone found a source for magnetically coated card, plastic or paper?

Andrew