CHM's "Revolution: The first 2000 years" is now online at
http://www.computerhistory.org/revolution/.
I know several cctalk'ers served as history advisers and/or loaned
artifacts. For my part, I advised on the mobile/portable exhibit.
(They said our individual names will be added during version 2 in a few
weeks or months from now.)
Bill Sudbrink wrote:
> Ah! There I would disagree. The case is not in half bad shape. If you
> have Superboard you would like to mount, it could be just the thing for
> you. That said, I think around $100 US is about the top of its value.
I had to google (I'm not at all familiar with OSI stuff), but it seems that
the keyboard is integral to the Superboard, right? So you'd basically be
paying for a bit of bent metal, wooden (?) sides and a PSU - and it's a bit
of bent metal which needs sanding down and repainting, at that (and I've no
idea if those decals come off easily!).
Considering it's $22 in shipping... anything seems like a lot to me :-)
cheers
Jules
Bill Sudbrink wrote:
> I would suggest that you look closely at the enlarged version
> of the third photograph. The case does not appear to contain
> a full "Superboard" OSI 600 board. I'm not sure what this thing
> is, but it is not a normal C1P. In the fifth photo, I think you
> can see the cable header for the video and cassette I/O hanging
> loose inside the case.
Oh come on, this is ebay... that just makes it extra-rare and worth twice
the price ;-)
In article <005101cbefcd$82d6f210$8884d630$@sudbrink at verizon.net>,
"Bill Sudbrink" <wh.sudbrink at verizon.net> writes:
> like to mount, it could be just the thing for you. That said, I think
> around $100 US is about the top of its value.
I disagree, based on the ebay selling prices of previous OSI
Challenger product.
Remember, the "value" of something is always in the eye of the seller,
not what you think its worth.
Famous works of art are worth millions of dollars because someone is
willing to pay millions of dollars for them at auction. Its not the
consensus of the dealers or critics that sets the price.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/>
Legalize Adulthood! <http://legalizeadulthood.wordpress.com>
--- On Tue, 3/29/11, Bill Sudbrink <wh.sudbrink at verizon.net> wrote:
> To anyone who might be considering
> bidding on this lot:
>
> http://cgi.ebay.com/OSI-Ohio-Scientific-Challenger-1P-/160565653395?pt=LH_De
> faultDomain_0&hash=item2562756f93
>
> I would suggest that you look closely at the enlarged
> version
> of the third photograph. The case does not appear to
> contain
> a full "Superboard" OSI 600 board. I'm not sure what
> this thing
> is, but it is not a normal C1P. In the fifth photo, I
> think you
> can see the cable header for the video and cassette I/O
> hanging
> loose inside the case.
Hehe. And in the second photo, you can spot a foam packing peanut hiding inside the case...
I love the fact that he says all the keys "seem to work", but yet the machine is "untested". So, what, they go down when pressed and come back up? How does that imply "working?".
I can just see a similar exchange:
"So - this car works?"
"Oh, yes, you put the key in and it turns great!"
"But, does it start?"
"Oh, I don't know, I didn't put gas in it"
"Well, what's the engine look like? Did you look under the hood?"
"Cars don't open, silly."
-Ian
Hi, Nathan --
> 1. Will there be day passes for those who won't or can't spend an entire week?
Email kfest-help at kfest.org and something can likely be arranged.
> 2. If #1 is true, will we be able to see daily schedules prior so we can pick which days are most interested to us?
We do post our session schedule online, but usually not until sometime in July. There's a general schedule on the first page of the registration form:
http://www.kansasfest.org/wp-content/uploads/kfest2011-register.pdf
-Ken
I got an Apple Powerbook 170 (68030) from ebay a week ago and today I got a power brick to test it out. The seller said it was dead when he tried to power it (with what power brick and voltage I don't know). I tried it with a 7.5V 2A Sony power brick with the correct end and got nothing (tried it with the main battery removed). Took the unit apart and checked the main fuse and it is ok. The only thing I can see damaged are two power mosfets on the bottom of the board that melted into the bottom plastics (solder on the parts is discolored and one of the legs to ground reads 148 Ohms resistance on both units).
The parts are both IRFR9020 (labeled as Q41 and Q43 on the motherboard)
https://picasaweb.google.com/107784270771159898725/Broken#55896559704001329… <== shows location
http://pdf1.alldatasheet.com/datasheet-pdf/view/115896/IRF/IRFR9020.html <== data sheet
Nothing else seems physically blown so I wonder if just swapping those parts out will fix it? Since I don't see the exact International Rectifier part number on ebay what else can I substitute for it? For example we have this part on ebay:
http://cgi.ebay.com/Lot-3-P-Channel-Power-MOSFET-15A-60V-0-15Ohm-SMT-SMD-/1… but I don't know how important the Rds Ohm factor is.
I have read that Apple original power brick had issues that would blow the surface mount fuse, but no idea what might have caused these chips to overheat so much (over voltage??). Any old Mac laptop people on this list know?
Thanks
TZ
I just came across an 8086 S100 CPU board from Seattle Computer Products
and I started thinking... How much trouble would it be to use this board
to come up with an IBM 5150 work-alike? What sort of custom boards would
need to be made?
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
Hello all,
I know someone who wants to recover data from one of these 10MB disk packs. They have no drive, no RLV12 controller and (unsurprisingly) no PDP-11.
I haven?t seen the disk pack in question so I have absolutely no idea of the condition although I am led to believe it has been looked after, stored properly and doesn?t have a crash...! Of course the pack owner has no idea of the data they?re after (whether it be ASCII, EBCDIC, binary etc..) so that?s another unknown quantity!
Is there anyone here who is able to assist with this? Maybe initially to produce a binary image of the disk for further exploration? If yes, (how much) would you charge for this service?
Many thanks
Robin
