-----Original Message-----
From: John Wilson <wilson(a)dbit.dbit.com>
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Date: Friday, June 16, 2000 8:14 PM
Subject: Re: Apple III (was: Apple III motherboard)
>
>Was the /// the machine whose user manual suggested that you should drop
the
>entire computer on a desk from a height of several inches before powering
it
>on the first time, to give all the internal connectors a chance to chew
>through the oxide? Wild...
>
Given the weight of a ///, you might fix the computer, but you'll damage
the desk! It wasn't just the first time, IIRC. The ///s also had
notoriously bad sockets, and lousy cooling, so the chips had a tendency to
wiggle out over time. So you might have had to repeat the Apple drop every
six months or so.
Any other examples of semi-official fixes like this one? The only other one
that comes to mind is the infamous "Atari ST twist", where you grasped both
sides of the case firmly, and twisted the ends in opposite directions. The
flexing of the motherboard supposedly reseated a chip that frequently came
loose, without, of course, requiring you to open the case, and thereby void
your warranty.
Madness!
Mark.
>anybody out here has the KXT11-AB Manual ?
>
>Any documentation about the T11 chip ?
I've got the KXT11-CA book on microfiche. Is that close enough?
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
In a message dated 6/17/00 9:25:28 PM Eastern Daylight Time,
eric(a)brouhaha.com writes:
> > Hmm, that actually sounds a bit familiar. I kind of think I vaguely
> remember
> > reading magazine articles in the early 80s about the /// being
> discontinued
> > and then re-introduced in "new & improved" form. But I wouldn't know...
>
> The Apple ///+. Very short product life.
>
> > Was the /// the machine whose user manual suggested that you should drop
> the
> > entire computer on a desk from a height of several inches before
powering
> it
> > on the first time, to give all the internal connectors a chance to chew
> > through the oxide? Wild...
>
> Not in the user manual, but some people did it. The problem was that Apple
> used bargain-basement DIP sockets on the early machines. In shipping the
> chips would work loose. Back then there shouldn't yet have been too much
> trouble with oxidation, but there certainly is now. The "correct" fix is
> obviously to open it up and reseat the ICs.
not only that, but the memory board is mounted above the main board on metal
standoffs with no other support. (at least on the 256k /// i had) Over the
years, that board had become permanetly warped due to sagging in the middle
and the attachment screws being overtorqued.
DB Young ICQ: 29427634
hurry, hurry, step right up! see the computers you used as a kid!
http://members.aol.com/suprdave/classiccmp/museum.htm
> Speaking of searches, I have been searching and searching
> for an Apple III motherboard. Mein ist kaput, I am afraid.
> Anyone have a spare they would like to part with?
Louis-
Not meaning to be rude, but even when they work, an
Apple /// is kaput.
Are you aware of how buggy those things were? Did you
ever do any extensive programming for one?
Again, sorry, I truly mean no offense, but I grew to
loathe Apple for making this machine, and it's a wonder
that I was able to overcome that loathing and buy a Mac.
-doug quebbeman
ard(a)p850ug1.demon.co.uk (Tony Duell) wrote:
> Seriously, unless there are very good reasons not to, people who send me
> HTML mail get ignored (especially if they're asking me for help). And
> this will continue.
Tony's getting close to the point here: when you post to a mailing
list or a newsgroup, you're writing for an audience. If you want your
message to be read, you should make it easy for that audience to read
the message. Else you run the risk that your audience will not
bother, there being 72 other unread messages in the classiccmp in-box
this morning.
If what you're going on about isn't obvious to me somewhere in the
first screenful or two, I'm going to hit the 'n' key and move along.
Putting something relevant in the Subject: header can help me make a
more informed decision. So can trimming quoted text to just the
relevant portions: if I see a couple or three screenfuls of quoting,
or can't tell whether I'm seeing quoted or original text, I begin to
wonder whether it's worth looking further for something new. Same if
I can't find the text for all the markup tags.
-Frank McConnell
CC to CLASSICCMP and port-VAX...
Hi, folks,
As of last weekend, when I was at RE-PC, I noticed that the VAXStation VLC
pile still seemed to be the same height. My guess is that the initial
asking price was high enough to scare people off.
Well, let me put it this way. Mark (one of RE-PC's owners) probably needs
the floor space a lot more than the VAXen, so make an offer on a VLC while
they're still there! I suggest starting at $20-$25 plus shipping.
Since the VLC pile hadn't moved, I'm willing to bet that the 4000/90 is
still at the bottom of it.
If you want to get in on this, give Mark Dabek a call (206-575-8737), tell
him I referred you, and go from there.
Thanks much.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"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..."
Oh, BTW, I almost forgot... I have a couple of books up on Haggle under
'Antique Computers.' One of them is an HP binder with a few CE manuals in
it that cover, among other things, the 7000-series disk drives, and the
other is a DEC book: "Programming in VAX-11 C".
The H19 terminal is still there, no bids yet, and there's also a
head-mounted display for PCs made by Reflection Technology (it's dated from
around 1989, so it meets the ten-year rule).
Thanks much.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho, Blue Feather Technologies
http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com
Amateur Radio: WD6EOS since Dec. '77
"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..."
>Here's something for the Commodore fans (same page). >I've never heard of
>this one before:
>
>CBM 16-bitter. The BX256 is a multiprocessor system >using a 6509 and 8088
>with an optional Z80, 256K of >internal RAM expandable to 640K externally,
>40K of ROM, >and interfaces for IEEE-488, RS232, CBM cassette, 8-bit >user
>port, and a carthridge slot. The green phosphor >video monitor has
>80-columns of 25 lines and has >tilt/swivel controls. The detachable
>94-key keyboard >includes a separate numeric keypad featuring a
>double->zero key, clear entry key, and a double-size enter key >for ease of
>use. The keyboard also has 10 user->definable keys. A built-in 6581 CPU
>allows a full 3->voice, 9-octave music synthesizer having an output for >an
>external audio system. A dual disk drive is built in >as is a realtime
>clock. Software includes BASIC 4.0, >with options of CP/M, CP/M-86, and
>UCSD Pascal. The >BX256 micro processor system supportsd all CBM
> >peripherals.
>Planned price is $2995. Address: Commodore Business >Machines Inc., The
>Meadows, 487 Devon Park Drive, Wayne, >PA 19087.
I hate to bust your bubble, but this machine was never released. The machine
has a CBM tape port, but the ROM has no driving code for it. Commodore's
6509-based machines were never popular to begin with & cost way to much to
manufacture, also, C= executives noticed how well the '64 was selling, and,
well, you can figure out what happened after that (wither 6509).
____________________________________________________________
David Vohs, Digital Archaeologist & Computer Historian.
Home page: http://www.geocities.com/netsurfer_x1/
Computer Collection:
"Triumph": Commodore 64C, 1802, 1541, FSD-1, GeoRAM 512, MPS-801.
"Leela": Macintosh 128 (Plus upgrade), Nova SCSI HDD, Imagewriter II.
"Delorean": TI-99/4A, TI Speech Synthesizer.
"Monolith": Apple Macintosh Portable.
"Spectrum": Tandy Color Computer 3.
"Boombox": Sharp PC-7000.
____________________________________________________________
________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
Greetings,
Can somene kindly tell me how to lock/unlock the heads on a CDC model
PA5N1F15 9" hard drive? I don't see anything that looks like a way to
look/unlock the drive when I examine it; do the heads lock/unlock
automagically?
BTW, according to the label, this is an FSD drive - is this
the type of interface, or do I actually have an SMD drive? Wow,
this is one heavy, and beautiful drive... looks like a cast-iron
housing too!
Since the date on the label is 1985 (or 86? I don't recall at the
moment), and the HDA media defect information sheet is dated 1998, it
looks like I've may have a relatively new drive assembly! :-)
--
R. D. Davis
rdd(a)perqlogic.com
http://www.perqlogic.com/rdd
410-744-4900
