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Mystery HP-67 cable



#6

Any idea what this mystery cable is attached to an HP-67?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3030204832&category=11713


#7

Hi, Patrick;

I'd not be surprised if the pins are connected to the card reader. I cannot see how many pins are available at the cable end (barely shown) but this would be the easiest way to load and retrieve programs to/from an external source: through the reader's circuits.

I remember when working as a telecom technitian whe a computer was connected to an ESK 10000 command unit (Siemens Switching Network) in order to automate the "analog" equipment. A complete daugtherboard was needed to convert computer data into comands and vice-versa.

Have anyone heard about such possibility? The HP97S has a specially developed data collector, I know, but I wonder if using card reader's input/output would also be possible.

Just a 1ยข "guess".
Lluiz C. Vieira - Brazil

Edited: 12 June 2003, 10:59 a.m.

#8

It is almost certainly an interface to an external printer or a reader for the blind. There were a couple of articles printed at the time talking about these interfaces.


#9

Hi, David;

would this output be an on-line, LED display "tracker" or it would respond to the standard HP97-equivalent "printing" functions? In any case, this is what I call "cool!"

I am curious because it leads me to think that the HP67 was not only able to "blink" the display with "to ptint" data but also could generate the equivalent HP97 printing signals. I used to think that part of the software was dedicated and different to each model, now I'm wondering if the HP67 had extra O.S. routines. Am I doing a bad analysis? Do you have any additional information?

This is amazingly weird!

Luiz C. Vieira - Brazil


#10

They spliced into the LED display driver signals. I think the PPC journal had an article on an HP65 printer mod. I remember seeing an HP67 converted to drive a Braille pin driver for the blind.


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