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HP Forums / HP Calculators (and very old HP Computers) / General Forum v / HP75C I/O Rom Essential for HP-IL?

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HP75C I/O Rom Essential for HP-IL?
09-09-2020, 12:09 PM (This post was last modified: 09-09-2020 12:10 PM by pamphonica.)
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pamphonica Offline
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HP75C I/O Rom Essential for HP-IL?
I've finally got my HP71B working well through an HP82169A HP-IL/HPIB interface to some testgear. Thank you Martin Hepperle for the 3D-printable connector designs so I now have enough cables!

I was wondering about doing the same on an HP75C, which does have HP-IL hardware built-in. But can I do anything with HP-IL without the I/O Rom? If not, that may make the project rather pricy! HP75Cs without ROMs are quite cheap. But I/O ROMs are rare.

(BTW if anyone in UK/Europe does have a suitable HP75C with I/O ROM for sale at a reasonable price, please contact me.)

Thanks
Jeremy
Jeremy. HP restorer/collector/user. HP85/86/87 and HP41/71/75. HPIB and HP-IL testgear and peripherals.
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HP75C I/O Rom Essential for HP-IL? - pamphonica - 09-09-2020 12:09 PM



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