Soroc was: new finds

From: Bill Yakowenko <yakowenk_at_cs.unc.edu>
Date: Wed Jul 2 19:24:40 2003

Hey Joe,

How sure are you about IQ-120's having 1802's? ISTR doing a class project on
that, studied the schematics (wish I had those now!), and concluded that
the design was very much like a microcoded CPU - some PAL or PGA controlling
register transfers, with a state register acting as a kind of micro-program
counter... Now I wonder if that was some other terminal. It was 20 years
ago, and my memory aint what it used to be.

I may be interested in that IQ-130; I'll e-mail you off-list. My IQ-135 is
actually in pieces (courtesy of UPS ten years ago). But there's a happy ending:
I've found somebody with an ailing IQ-135 that needs parts. I'm packing it up
for shipping now.

        Bill.


On 29 Jun 2003, Joe <rigdonj_at_cfl.rr.com> wrote:
> Hi Bill,
>
> I THOUGHT it had an 1802 until I took it apart for cleaning/checking.
> Then I found out that it had one of those "RARE" NEC Z-80s :-/ It turns
> out that this is a model 130 and not a model 120. The 120s did use 1802s.
> This one also has the 1602 USART. I searched E-bay and didn't find anything
> related to Soroc. I searched the net and found quite a few hits for the
> model 120 and only one hit for the 130 and that was a message that Erik K.
> posted few weeks ago. I didn't see anything for a 135 but I did see a
> mention of a model 140.
>
> > The one sitting next to me here (an IQ-135) definitely has a z80.
>
> Do you need a 130 to go with it? This one is interesting but I don't
> have room for things like this.
>
> Joe
Received on Wed Jul 02 2003 - 19:24:40 BST