Greg,
Are you sure you want to get rid of your SX-64 and not do 'this' to it???
http://sx64.opsys.net/
Joel
-----Original Message-----
From: G Manuel [mailto:gmanuel@gmconsulting.net]
Sent: Friday, January 03, 2003 1:00 PM
To: cctech(a)classiccmp.org
Subject: Some old computer systemsof interest
Hi Everyone,
I have a couple of old systems some of you might be interested in. The first
one is a Vector. This is an all in on unit running CPM as the OS. I only
have the system for this one.
The second is an old Commodore SX-64. For those who don't know it, it is a
small portable Commodore 64. It had a small (maybe 5" diagonal) color crt
and 5 1/4" disk drive internal. I have many additional peripherals for it
including additional 5 1/4" drive, 20MB HD, Memory expansion model (256k),
mouse, GEOS OS, HearSay 2000 (speech recognition and speech module) and lots
of software. It is in 100% working condition and has been well cared for. If
you have any questions about these or other systems please feel free to ask.
Greg Manuel
At 06:01 PM 1/1/03 -0600, you wrote:
>On Wed, 1 Jan 2003, Joe wrote:
>> At 10:51 PM 12/31/02 -0600, you wrote:
>> >On Tue, 31 Dec 2002, Joe wrote:
>> >
>> > > Does anyone know of another display that can be substituted for the
>> > > TIL 306/307? Here is a data sheet for the 306/307 in case you have a
>> > > question about it, <www.alltronics.com/download/TIL306.pdf>.
>> >
>> > I don't know of an exact replacement offhand, but I thought these were
>> > still in production?
>>
>> Are they? I think mine are about 25 years old. FWIW I went looking for
>> some at a large local surplus store and found one that I think is
>> prototype. It's built out of clear material instead of red and is marked
>> TIXL306 and is date coded 7204 (almost 31 years old!). I went through
>> several boxs and THOUSANDs of displays and only found one standard 306
>> and the one prototype.
>>
>> > How many of these displays are you looking for? I believe I still have
>> > a few in my parts bin...
>>
>> In addition to the one that I found in the store I need three of them.
>> Mine were in sockets and the dissimilar metal corrosion has eaten off at
>> least one leg off of each of mine.
>
>Oops, I have TIL311s, not the 306. I was thinking that the 311s were still
>in production. I guess the 311 with a built-in BCD controller must still
>be useful in current products.
The 306/307s also have built in BCD decoders. I've been trying to find a data sheet on the 311 so that I can see what the difference is between it and the 306/307.
>
>I'll make a note to check a couple of my local surplus dealers over the
>next few weeks. If I find any TIL306 displays, I'll pick them up. Should I
>also hunt for any 307s?
306's or 307s will work equally well. The one difference between them is that one has the decimal point to the left of the digit and the other has the dp on the right. My unit doesn't use the decimal points so either display will work fine.
>
>If all else fails, would it be possible to salvage your displays? I've
>carefully ground back ceramic and plastic on other dip components to
>attach replacement leads in the past, but it isn't a fun task...
It's possible but all the leads on them are weak and I'd probably have to eventually replace ALL the leads.
Joe
>
>-Toth
>
"Heinz Wolter" <h.wolter(a)sympatico.ca> wrote:
> I always wanted one of those systems - when I was
> in school - Natsemi was pushing those Genix/unix
> kits like crazy to all the undergrads - but they turned
> out to be seriously expensive and the early 32K parts
> were severely buggy to support a stable system.
Yes! If you get a chance to talk to someone who tried to seriously
use the 32K, ask them about National's bugs. You are almost assured
of a story.
-Frank McConnell
The 7854 calculator keyboard goes with a 7854 mainframe scope. I've never
used or seen one, but apparently the keyboard is necessary for full use of
the scope. They show up on eBay occasionally.
This page has some info and pictures of various 7000 series mainframes and
plugins:
http://www.caip.rutgers.edu/~kahrs/testeq/7000.html
>From: Patrick Finnegan <pat(a)purdueriots.com>
>Reply-To: cctalk(a)classiccmp.org
>To: cctalk(a)classiccmp.org
>Subject: New finds
>Date: Sat, 4 Jan 2003 00:19:24 -0500 (EST)
>
>Got a few new things from Purdue Salvage over winter break....
>
>3) Tektronix 7854 Waveform Calculator .. looks to be a part of something
> else, what I have is just a pad with a bunch of buttons and a cable
> with a DB-25M on the end. I'm also willing to sell this.
> $ free
>
_________________________________________________________________
The new MSN 8: smart spam protection and 2 months FREE*
http://join.msn.com/?page=features/junkmail
>From: "Sellam Ismail" <foo(a)siconic.com>
>
>On Fri, 3 Jan 2003, Dwight K. Elvey wrote:
>
>> You know I have a reader that I connect to a printer port on a PC?
>> You can borrow that any time you want.
>
>I know, but I'm on a roll. This interfacing stuff is fun :)
>
>Was there any special magic required to connect it to the parallel port or
>did you just feed the outputs into the pins of the PC port?
Hi
It depends. Not all parallel ports are created equal.
Many are bi-directional though. There are about 3 different
flavors. As I recall, I connected the parallel data out
to the data lines and ran the strobe to one of the status
input lines. There is a start and stop signal that uses
to start and stop the tape as well. I can give you a copy
of my code.
There is a web page, http://www.lvr.com/parport.htm , that
has several links to parallel port stuff. Since you are now
at the hardware level and on a roll, this is a good place
to look.
I don't recall if the two drives that you loaned me were
parallel or serial outs. I think one was a parallel though.
Dwight
>
>Sellam Ismail Vintage Computer Festival
>------------------------------------------------------------------------------
>International Man of Intrigue and Danger http://www.vintage.org
>
> * Old computing resources for business and academia at www.VintageTech.com *
>
>
If you're in a hurry, skip to the request at the end.
Good news! The travesty that was my first attempt at a new web site for
ClassicCmp.org has only a few days' worth of life still left in it. We've
been long overdue a web site that doesn't (completely) suck, and I intend to
provide one as soon as possible. I am finished with college and have become
comfortable with my new job, so I now have adequate time to make ClassicCmp
a better tool for its members and for the world's classic computer
enthusiasts in general.
The first stage will be a small set of static documents which will provide a
*consistent* view of the site's current content: mailing list info, mail
archives, and the FAQ. There will be no mention of anything under
construction. Documents will be simple, nearly text-only, XHTML-compliant,
and lynx-compliant. Expect this to be up soon.
I have written the first half of the spam-defense mechanism we discussed
several weeks ago. This half isn't the CGI program I talked about, but
instead the processor that replaces email addresses in an HTML document with
links to that CGI program. Due to popular demand, the email address info
encoded in the links is encrypted by two iterations of DES. I am currently
investigating human-verification methods to be used in the CGI program.
Expect the archives to be spam-proofed soon.
Thanks to Tothwolf the packrat, the missing months of the old list archives
have been recovered. Expect them to be up soon, as soon as I decide whether
to keep Pipermail or switch to Hypermail (what we used to use) for message
archiving. I'm leaning toward Hypermail.
Once these things are done and a decent web site is in place, I will look at
developing a much more complex, second-stage site, with a file archive, link
database, and some degree of dynamicity via PHP or similar. If you have a
suggestion, please let me know via private email.
By the way, we now have exactly 720 subscribers.
I would also like to hear (private email please) from subscribers with
comments for or against the current two-list system. Defense of the system
is welcome, as are ideas for better ways of doing it. Is it necessary?
Should we go back to one list? Should we have more than two lists? Something
else? I want _your_ opinion!
--
Jeffrey Sharp
ClassicCmp List Admin (during Jay's extended break)
Got a few new things from Purdue Salvage over winter break....
1) (OT) RS/6000 F30 .. proc but no ram, drives, I/O cards and missing
the cable to connect the hard drive bay to the motherboard.
... if anyone is interested, I would probably be willing to
sell this off.
$30
2) HP 1361D Logic Analyzer with 5 pods, and an analog probe
$ free
3) Tektronix 7854 Waveform Calculator .. looks to be a part of something
else, what I have is just a pad with a bunch of buttons and a cable
with a DB-25M on the end. I'm also willing to sell this.
$ free
Everything seems to work, as far as I can tell.
I'm also looking to get rid of a few things that I'm not really interested
in anymore, watch the next few days for more items.
BTW I'm in Lafayette, Indiana.
Pat
--
Purdue Universtiy ITAP/RCS
Information Technology at Purdue
Research Computing and Storage
http://www-rcd.cc.purdue.edu
While thinking about racks to use for mounting my PDP-11/44
components, as well as other equipment from test equipment to audio
and synth equipment, something just occured to me: why bother with
hunting down steel racks when some 2x4s and lag bolts may suffice just
as well? I was thinking that one can just run 2x4s from the basement
floor up to the heavy wooden rafters, attach them to the rafters, and
then add horizontal supports at the bottom to space the vertical 2x4s
apart properly. Any thoughts on this? I guess the museum-type
equipment purists won't like the idea, but it would be a cheap and
functional solution for many of us. :-) Has anyone else here tried
this?
Lastly, has anyone on this list tried retrofitting non-rack-mount
equipment into racks? E.g., welding (or "JB Weld"ing) rack-mount tabs
onto systems like PCs and Kaypros, as well as making rack-mountable
shelves to hold the Macintoshes, etc.? Just trying to think of ways
to save space. Stacking system on top of system, helter skelter, as
systems are added, tends to result in rather annoying, space hogging,
piles of systems after a while, making some systems difficult to get
to at times.
--
Copyright (C) 2002 R. D. Davis The difference between humans & other animals:
All Rights Reserved an unnatural belief that we're above Nature &
rdd(a)rddavis.org 410-744-4900 her other creatures, using dogma to justify such
http://www.rddavis.org beliefs and to justify much human cruelty.
> I've been looking for a Symmetric 375, but those seem to be rare
> as hen's teeth.
Definitely, and a shame as they seem to have been very nice systems.
> Why 32000s? I just like to be different I guess. :)
I was fortunate enough to pick up a couple of systems built around
the Nat Semi ICM-3216 boardset a little while back.
I keep my eyes open for other systems, but am both broke/unemployed
and time constrained these days...
--Steve.
"Glen S" <glenslick(a)hotmail.com> wrote:
> I have a copy of the manual 5955-4311 / Installation and Service Manual /
> High Performance Memory Systems. It covers the 2102E and 2102H Memory
> Controllers and the 12741A, 12746H, 12747H, 12779H, and 12780H Memory
> Modules. (But not the 12749H).
Looks like I have a December 1983 edition of this manual that also
covers the 12666H and 12749H but not the 12741A. In storage of
course. If it would be helpful, I'll try to pull it next time I'm out
there (hopefully sometime this weekend).
-Frank McConnell
