Hey HP experts and enthusiasts

From: Russ Blakeman <rhblake_at_bbtel.com>
Date: Mon Jul 13 20:28:57 1998

Some of what you wrote I understand especially IEEE 488, which I knew to be
HP-IB after working with HP 1000's and support equipment for testing air
launched cruise missiles. The specific HP model stuff is greek to me and I
haven't opened them (and probably won't) as I have no equipment to test them.
Someone has expressed an interest in the 2 units so we'll see how that goes.
Appreciate the information, helps greatly as well as backsup the previous info
I was sent.

Tony Duell wrote:

> >
> > I have two box type units labeled as an HP9123D that appear to have two
> > 3.5" type removable (floppy?) drives in each, with an HPIB bus connector
> > and a cable with a 5 pin DIN on the end. It also states that it's for
> > use only with the HP45849A. They're both complete and like new but I
> > have no equipment to test them with. I know HP stuff is expensive even
> > when used and these aren't all that old by their looks and styling so
> > they should make some HP owner very happy. I have no use for them but
> > yet I would hate to dismantle them or dump them.
> >
> > Anyone know what these are exactly and would anyone be interested in the
> > wo of them, maybe a trade or something?
> This is the floppy drive for the HP150-II (aka Touchscreen II) machine.
> Inside there's a controller board containing (I believe) a 6809
> processor, HPIB chip, floppy controller, etc and a pair of Sony
> double-sided floppy drives.
> The 24 pin connector is HPIB (aka IEEE488), and it uses the SS/80 command
> set, I think. The 5 pin DIN plug is the power input (ground, +5V, +12V)
> from the HP150-II power supply. I've got the pinouts if anyone wants to
> try it with another HP machine.
> Logically it acts the same as a 9122, I think. Electronically the
> circuitry is quite different.
> -tony

 Russ Blakeman
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Received on Mon Jul 13 1998 - 20:28:57 BST

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