At 01:15 AM 2/15/98 -0500, you wrote:
>Does anyone know how well LCDs hold up against time (provided, of course,
>that they are not cracked!)?
I had a Zenith Supersport XT laptop with CGA LCD in here a while back.
Display looked fine to me. I've never heard of LCDs going bad like a
monitor does. My LCD watch has been going strong for about the last 7
years, but I realize the design is alot simpler.
-John Higginbotham-
-limbo.netpath.net-
Any interest? If so, deal with Rag directly...
William Donzelli
william(a)ans.net
---------- Forwarded message ----------
Date: Sat, 14 Feb 1998 14:18:38 +0100
From: Ragnar Otterstad <otterstad(a)inet.uni2.dk>
To: William Donzelli <william(a)ans.net>
Subject: Re: FS Early computer
----------
> nixi-tubes so I guess it qualifies for this reflector.
> > >
> > > Somebody collecting early computers ? I have a late 1970s desktop
> > computer
> > > made in Silicon Valley
> > > with nixi display, a unique tape drive build in.
>
> Who made it, and what model is it?
California technology International, Santa Clara, CA
Model 1032A
I could probably point you towards
> someone that might want it (I belong to the ClassiComp list as well as
> BA).
>
> William Donzelli
> william(a)ans.net
>
<>When I heard the description, I assumed it was a standalone box you coul
<>connect a floppy to, and test every function on the floppy, maybe use it
<>a burn-in test or something like that.
<
< It could be used for that but I have always used them for testing and
<aligning drives. It only directly tests the positioning system not the
<read or write systems. However you can look at the data pattern with a
<scope if you use a formatted disk. In fact, that's exactly what you do
<when you align the heads. You use a specially formatted disk called an
<alignment disk and you position the drive heads to a location between tw
<special tracks of data and you mechanically adjust the head so that both
<track siganls are equal.
The Shugart unit and also one I made could proveide basic write data
patterns for checking the write logic and also seeing if the basic read
logic works and dince the pattern is a stable one the quality of the
read data.
The common checks was track 00/01 repeating for track 0 detector. Also
displaying the state of the write protect led, index led and allowed
testing of the motor on, drive select and drive select led.
The media(diskette) usually used with it allowed checking index position,
read amp balance and gain, thresholds, and track alignment.
Allison
Just a thought To Whom It Concerns:
Since I'm a publisher with a pretty good set up here for both paper and
electronic publishing. I'd like to offer anyone who desires such
services as creation of PDF files, typesetting, editing or organizing
any documents to contact me.
I can usually do most straight forward things like create PDF from ascii
text in a couple of minutes. Editing, formatting, whathave you, takes
more time.
I'm not interested in charging for this, unless you are trying to make
some money on a project and need an editor/publisher. Regardless, I
don't mind helping out.
If you need a hand with anything, please contact me through the list or
personally at:
mallison(a)konnections.com
We've started a web page for documents that's still in its infancy at:
http://www.konnections.com/bebooks/catalog.htm
Our goal is to put every living available document there... might be
ambitious. I'll be happy to post documents there as a service if you
need a place.
Thanks,
-Mike Allison
At 10:09 PM 2/13/98 -0500, you wrote:
>I've never HEARD of a disk exerciser.
>
>What on earth is one for? Pushups? Situps?
When I heard the description, I assumed it was a standalone box you could
connect a floppy to, and test every function on the floppy, maybe use it as
a burn-in test or something like that.
-John Higginbotham-
-limbo.netpath.net-
>
>Are modes 8,9,10 things like 320*200 in 16 colours?
>
>Remember the CGA monitor can display 16 colours (there are 4 TTL-level
>digital input lines). The original CGA card didn't have enough memory (or
>the right logic) to do anything more than 2 colours at 320*200, although
>the monitor would have been capable of it. The PC-jr did have enough
>memory for this.
An old reference I have says:
mode 8 is 160X200 16 colors
mode 9 is 320X200 16 colors
mode 10 is 640X200 4 colors
My PC JX monitor has a 16 pin connector, same shape as a games port.
Hans
In a message dated 98-02-14 21:03:44 EST, you write:
<< For an external drive. The one I have in the garage is IBM# 4869
(360KB). I've seen a 720KB 3.5" version but don't know its' #. >>
the 4869 is the big external ps2 floppy drive, usually with a 360k drive
hiding inside. am i correct any floppy controller with the external connector
can run this drive?
david
>> Another lucky find - a Memotech MTX500 for $2. :) Beautiful computer -
>> aluminium case, nice looking external power supply, and black.
>
>Wouldn't that be MTX512?
No. It seems that the 512 was the 64k version of the 500 - the 500 was
32k and thus slightly cheaper.
Adam.
OK, here we go. LOCAL PICKUP ONLY in Kent, WA (near Seattle). There's no
flaming way I'm shipping this thing unless someone wants to pay the freight
up front. ;-)
What I've got is a Century Data M315-1 SMD disk drive. 14" platters, God
only knows what capacity it is. It seems to power up and spin up OK, is
noisy as blazes, has a HUGE linear voice-coil head positioner, and that's
about all I know (or want to know) about it.
I'll happily hand this beast, along with its rack mounting rails, over to
the first happy vic... uhh, 'volunteer' to speak up and say they'll come
get it.
Any takers? If not, and I can't get any from comp.sys.dec, I'll have no
choice but to tear out the useful parts and scrap the rest.
Drop me a note, please. I hate to scrap anything, but I need the room! I'd
far rather give the beast to someone who can use it.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272)
(Hamateur: WD6EOS) (E-mail: kyrrin2(a)wizards.net)
http://www.wizards.net/technoid
"Our science can only describe an object, event, or living thing in our own
human terms. It cannot, in any way, define any of them..."
