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 
2 Jul
2 Jul
1:25 p.m.
Bill,
I'm not positive about the 120 having a 1802 since I've never
disassembled one but I've seen a number of websites that claimed that they
did. Search for "Soroc Terminal" on Google and you'll get plenty of hits.
Joe
At 03:06 AM 7/2/03 -0400, you wrote:
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
3 Jul
3 Jul
10:34 a.m.
I've got an IQ120, its all random logic, no microcontroller at all.
Joe wrote:
Bill,
I'm not positive about the 120 having a 1802 since I've never
disassembled one but I've seen a number of websites that claimed that they
did. Search for "Soroc Terminal" on Google and you'll get plenty of hits.
Joe
At 03:06 AM 7/2/03 -0400, you wrote:
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
5 Jul
5 Jul
2:58 a.m.
New subject: Non-interlaced, mono monitors?
I've got an unusual video board I'd like to play with...
This board usually generates NTSC interlaced video, but some came with a
crystal and jumpering option to set the board for
60 hz vertical refresh. This is the version of the hardware I have. My
documentation is not complete, but...
I'm assuming the boards generate composite video exactly like NTSC, only
non-interlaced. The resolution is 256 by 256.
Exactly what sort of monitor can be fairly easily hacked to display this
video signal?
1:52 p.m.
New subject: Non-interlaced, mono monitors?
I've got an unusual video board I'd like to
play with...
This board usually generates NTSC interlaced video, but some came with a
crystal and jumpering option to set the board for
60 hz vertical refresh. This is the version of the hardware I have. My
documentation is not complete, but...
I'm assuming the boards generate composite video exactly like NTSC, only
non-interlaced. The resolution is 256 by 256.
Exactly what sort of monitor can be fairly easily hacked to display this
video signal?
Just about any NTSC video monitor will work, no hacking required. I bet
you could find some ex-Apple II composite monitor laying around somewhere
that would work just peachy. Just don't expect razor sharp video -- NTSC
is best for MOVING pictures/gfx.
Gary Hildebrand
St. Joseph, MO
7624
days inactive
7627
days old
4 comments
4 participants
participants (4)
-
bshannon＠tiac.net -
ghldbrd＠ccp.com -
rigdonj＠cfl.rr.com -
yakowenk＠cs.unc.edu