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Making new HP-65/TI 59 magnetic cards out of VHS tape
11-04-2021, 12:51 PM (This post was last modified: 11-04-2021 01:03 PM by Massimo Gnerucci.)
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RE: Making new HP-65/TI 59 magnetic cards out of VHS tape
(11-04-2021 12:33 PM)KimH Wrote:  I am not 100% sure how the 65/67 works, but I do know that the cards for the 75C & 71B has a SYNC/TIMING track which is written in the production.

Yes, since they are hand pulled.
Those motor driven don't have that marking.

See Fig. 8 on page 7.

(Modified to add reference)

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RE: Making new HP-65/TI 59 magnetic cards out of VHS tape - Massimo Gnerucci - 11-04-2021 12:51 PM



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