2 Jul
2003
2 Jul
'03
12:24 p.m.
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(a)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