13 Jan
2014
13 Jan
'14
3:45 p.m.
On Jan 10, 2014, at 7:32 AM, ARD wrote:
Would they? I thougth the card slots were in the bottom case of the TI59,
which means this could have been swapped over too. The result would eb
aTI59 somewhere with no card slot.
The logic board would have to be changed too, the card reader IC and the
324 op=amp (read amplifiers) is only on the TI59 board, and IRIC the TI58
doesn't even have the pads for them.
In other words, all that was left of the original TI58 was the top case
and keys :-)
But you could not add a card reader to
a TI58 to make it into a TI59 (and I always thought it was a pity there
was no TI59-C).
Agreed on the TI59-C!
A friend of mine who owned a TI-58 ordered a TI-59, decided it was not
suitable, and returned it. Somehow his TI-58 was subsequently able to
read magnetic strips. I assume somewhere down the line, someone came to
be in the possession of a TI-59-shaped m ag card piggy bank?
Right, there was no official way to add a card reader? :-).
You couldn't even buy the card reader module as a spare part and fit it
in, as I said the logic PCB was totally different..
Of coure the HP41 could _later_ be expanded with
the extended memory
modules, but those were not avaialble when the machine first came out. So
you would probably not have considered those.
Had I paid much attention to the four ports on top of the machine, I
might have. But you are right. Incidentalyl, never try to
print non-normalised numbers on an HP97. The print routine gets confused
ans leaves the pritnhead turend on for too long. The result is a
burnt-out head.
!! Good to know. Thank you! Pretty sure my Dad had use of an HP-97 at
one point, but I think it has long since gone back to the university. The TI59 uses a BP1A battery pack which is 3 AA
NiCd's in a plastic
housing. No other internal electronics.
The pack I have, so I can probably get the plastic housing open. Are
they plain AA ni-cads, or do I need to order cells with solder tabs?
Never mind, I?ll find out when I get there.