"ajp166" <ajp166(a)bellatlantic.net> wrote:
> However... JTS was a short lived supplier is low cost IDE drives and
> were noted for high failure rates though there were the occasional
> decent one in the pack. They were also very slow compared to
> the better WD, Seagate, Quantum and Maxtor.
Don't I also remember that JTS was flogging the notion (later used by
Quantum "Bigfoot" drives) of building 5.25" hard drives well after
everyone else was making 3.5" units? The idea(s) being that all those
PC cases were being made with 5.25" drive bays that were going unused;
and 5.25" platters could have more surface area than 3.5" ones, so you
could get the same capacity with fewer heads and hence lower cost (and
almost certainly lower performance, but who pays attention to disk
drive performance at the low end?).
-Frank McConnell
In a message dated Sat, 6 Oct 2001 4:56:44 PM Eastern Daylight Time, Dave McGuire <mcguire(a)neurotica.com> writes:
> On October 6, LFessen106(a)aol.com wrote:
> > Hey Dave, can you hold onto a Quadra for me?
>
> Sure, if you can grab it before I move...end of October...
>
> -Dave
Cool! Actually I talked w/ Brian today who said he was coming up there tomorrow probably (definately this week). Anyhow, would you send it along with him? He said he'd bring it back for me earlier than I could get there to get it. BTW, I do plan on coming up to help. Just let me know when.
On Oct 7, 22:36, Philip Pemberton wrote:
> On 7 Oct 2001 1:36:56 +0100 "Iggy Drougge" <optimus(a)canit.se> said:
> > Tony mentioned teletext chips a few days ago. Don't know if those
perhaps
> are
> > only 8-colour, though. Tony?
The SAA5050 is certainly only 8-colour (plus attributes like flashing) and
as far as I know so are later teletext chips.
> I've got an SAA5050. Anyone know how to use it without the SAA5020 timing
> generator?
Take a look at the circuit diagram for a BBC micro; it uses a 6845 for
timing and an SAA5050 to generate the teletext screen mode.
http://bbc.nvg.org/mirror/www.acorn.com/ftp/documents/circuits/
> I've also got a Microvitec Cub 653 monitor. TTL input, composite sync.
How
> can I get Csync from Vsync and Hsync?
XOR them together; feed the unbuffered TTL outputs to a 74LS86 or similar,
and buffer the output with a transistor.
--
Pete Peter Turnbull
Network Manager
University of York
On Oct 7, 18:58, ajp166 wrote:
> Well sice this is not a PC centric group we may not be the best place
> for advice.
>
> However... JTS was a short lived supplier is low cost IDE drives and
> were noted for high failure rates though there were the occasional
> decent one in the pack. They were also very slow compared to
> the better WD, Seagate, Quantum and Maxtor.
They had some problems with master/slave selection as well. They made it
to the list of "Worst Models Ever" at www.driveservice.com/bestwrst.htm
with "JTS any model".
> Oh, JTS disappeared withing two years after they show up.
That's a bit of an exaggeration :-) They were around for a while before
they did the Atari deal (1996?), making drives from 1994, and went bust in
1998.
--
Pete Peter Turnbull
Network Manager
University of York
On October 7, Full SCSI wrote:
> Why are you selling the Mog Dave?
While I'm quite attached to that truck, I don't drive it nearly
enough...and frankly, I could really use the money.
-Dave
--
Dave McGuire
Laurel, MD
> > Since "they never did provide BASIC" then there was *always* "no ROM
> > BASIC." That's like stopping the machine with a message stating "no
> > printer." Why not display something understandable to a common user,
such
> > as "no bootable device?"
>
> Because INT 18h doesn't check for bootable devices. It is the entry to
> ROM BASIC. It may well be that the most common time that it is called is
> from the bootstrap after both floppy and hard disk boots have failed, but
> that doesn't mean it's the only time it can be called.
Tony, are you simply being obstinate here, or didn't you see the above
reference to "common user?" Do you think "common users" -- not to be
disrespectful to plain old computer users -- read BIOS listings???
What I mean to say is: Suzy Six-pack, who ekes out a living typing up MS
Word documents, doesn't know shit about the internals of the machine she
uses.
> Actually, one thing that really annoys me are error messages that don't
> describe the real problem, but only the most likely cause. I need to know
> waht's really going on so that I can fix it. Odd, that....
Yes, and even more odd is that you fail to see that "no bootable device" at
power-up actually does describe the problem, whereas "no ROM BASIC" does
not, since the system in question would never call INT 18h if a bootable
device were available (unless some insane programmer called it, and I
seriously doubt that you can show me a commercially available program which
does this).
Glen
0/0
From: Eric Dittman <dittman(a)dittman.net>
>The third-party controllers were most popular on the Model 1, since the
stock
>FDC was SD. There were a few third-party controllers for the Model III
and
>the early Model 4, but they weren't as popular as the 1793 was more
capable.
>The stock Model 1 FDC also had reliability problems that lead to
third-party
>data separator plug-in circuits.
Yep, the M1 data sep was the 1771 internal and that was at best terrible
and WD would tell you that. That lead to the Piggyback card to at least
add a decent data sep. The 1793 came later but was very desirable
as the 35/40track Single sided FD100 or SA400 drives were tiny storage
wise.
Allison
I realise this may not be the best forum to ask this question, but the
emulator newsgroups seem to be pretty much dead.
I'm updating an Apple ][+ emulator that I wrote back in 1994. I would
very much like to emulate a printer interface card, such as the Grappler+,
but I never owned a printer for the Apple ][+ I still have at home, so I
don't have a printer interface card that I can study.
So...I was wondering if anyone on this mailing list happens to own an
Apple ][ with a printer interface card like the Grappler+, who would be
willing to dump the ROM(s) and provide me with details of the I/O locations
used.
I realise some of you may be against distributing ROM code on the basis of
copyright (I personally feel that discontinued products don't deserve
copyright protection, though I realise the law says otherwise). If nobody
is willing to provide me with ROM code for a printer interface card, I'll
settle for a description of the I/O locations and any other information you
can give me on the operation of the printer interface card, and I'll write
my own "clean room" version of the ROM instead.
Regards,
Philip
On Oct 7, 16:50, ajp166 wrote:
> Beats me what that drive is. This is a group for hardware over 10 years
> old.
> If it is that old you likely going to be fixing it yourself.
> -----Original Message-----
> From: CByrd87043(a)aol.com <CByrd87043(a)aol.com>
> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
> Date: Sunday, October 07, 2001 3:48 PM
> Subject: Hard Drives
>
>
> >I have a Hard Drive model P1200-2af. I need to know where can I send it
> to
> >get it fix or replace. It just stop working.
It's a nothing-special 1.2GB IDE drive with a bad reputation, made by JTS.
JTS are no more, so the only likely option is to replace it with a
Seagate, WD, or whatever.
JTS were famous for, amongst other things, buying part of Atari from the
Tramiel family, laying off a lot of staff, and then selling it to Hasbro
shortly after being de-listed by the stock exchange and shortly before
going bust in 1998.
--
Pete Peter Turnbull
Network Manager
University of York
Beats me what that drive is. This is a group for hardware over 10 years
old.
If it is that old you likely going to be fixing it yourself.
Allison
-----Original Message-----
From: CByrd87043(a)aol.com <CByrd87043(a)aol.com>
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Date: Sunday, October 07, 2001 3:48 PM
Subject: Hard Drives
>I have a Hard Drive model P1200-2af. I need to know where can I send it
to
>get it fix or replace. It just stop working.
>