Anyone in the Toronto area interested in a late model Cromemco or two?
300/400/420s I think, some manuals & spare cards also available, almost
free. Can find out more detail if anyone's interested.
Pickup only within next two weeks or so; contact me off-list.
mike
I picked this up a while back but just got around to checking it today.
It looks brand new!! The power cord has never been unfolded or had it's tie
strap cut off and the paper for the printer is still sealed in heat shrink
plastic. The case, CRT and keyboard are all immaculate and the plastic is
nice and white not faded to a dirty yellow/brown. The only flaw that I
could find is that something caused the carrying case to rub on the bottom
of the case and it wore away some of the paint on the bottom of the
computer. It even has both manuals with it. BUT all of the original disks
are missing. Does anyone have copies of the disks for this thing? I'd LIKE
to have originals but I'll settle for copies. I did boot it today with a PC
DOS 3.1 disk and it worked flawlessly. It has been upgraded to 512k and a
second 360k drive has been added.
Joe
>> Work out the force on the faceplate due to air pressure (which
>> you can assume is 14 pounds per square inch). It's pretty large
>> for TV-sized CRTs!
> Several tonnes even on little ones 14"-20", even MORE on 36" CRT.
Just over 1200lbs for a 14" and just _under_ 4T for a 36"
Lee.
.
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> All I know is NOT to throw the PCB in the dishwasher. :)
Why not? Dishwashing won't hurt a PCB, how do you think they
get cleaned after soldering?
Lee.
.
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I'll be in NY, NY in the Brooklyn area starting tomorrow night very late
(my flight gets in around midnight) and possibly through until Friday
morning. I'm consulting on a movie shoot involving an ASR32.
I'm not sure what my schedule will be, but if anyone wants to meet up (if
I have time) then please contact me privately.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
>From: "Ethan Dicks" <ethan.dicks at gmail.com>
>
>On 10/4/05, Chuck Guzis <cclist at sydex.com> wrote:
>> Looking very carefully at the photos of these contacts, I believe they're
simple tinplate. This would fit with the inexpensive phenolic PC board material
being used.
>
>I have an Odyssey - the cards are indeed simple tinplate over copper
>on uber-cheap phenolic board. What you see is what you get. No
>camera tricks here.
>
>-ethan
>
>
Hi
I will repeat again. Coat with DC#4.
I'm beginning to sound like a broken record. It works
with tinplate over copper. It even works with bare copper.
As long as the surface is cleaned first of salts and such,
it will protect for years.
Dwight
>From: "der Mouse" <mouse at rodents.montreal.qc.ca>
>
>> I'll never seen anything horrendous in so far as implosions. I used
>> to service Mac's "back in the day" and had to replace a few CRT's on
>> the original Macs. Apple would send the replacement monitor in a box
>> and inside was another box that you placed the whole mac inside of,
>> you'd follow the standard discharge and then purposely snap the tip
>> of the neck off the back of the monitor before closing up the box and
>> disposing of it, it was a scary moment the first time, but just a
>> quick zip of air and it was done, never had anything happen, did a
>> few dozen monitor replacements and disposals.
>
>Yeah, a small crack in a not-particularly-stressed part of the tube is
>rather unlikely to produce spectacular implosions. (The evacuation
>pinch-off is about as unstressed a part of the tube as it gets.)
>
>I remember, as a kid, going to the village dump. There were usually
>some dead TVs with the cases gone, and I'd throw a rock into the CRTs
>from as far away as I could throw rocks (even then I'd heard of CRT
>implosion danger). Never seemed to be much more dramatic than a glass
>vessel of similar size and shape with no pressure differential, but of
>course I was rather far away. It also could be that a thrown rock is
>not the sort of stress that produces implosion failures.
>
Hi
It usually takes a break such that the gun assembly goes
into the tube. This requires that it has a ring fracture
somewhere in front of the yoke. The assembly is then pulled
by 14.5 lbs towards the front screen. While some vacuum is
lost, as the gun is excelerating, if the diameter of the
assembly of gun and glass is large enough, it will be moving
quite fast before much vacuum is lost.
Assume that the break is such that a 12 inch diameter chunk,
including the neck breaks. Imaging that piece being pushed by
about 1800 lbs of force. How fast would you expect it to be
moving?
Not likely to break this way in most cases. It really depends
on stress, scratches and luck.
Dwight
Yet another IMSAI 8080 has been listed on the VCM. The last one went for
a really good price at $990, but this one is listed for $850 as a straight
sale!
http://www.vintagecomputermarketplace.com/view.cfm?ad=2023
I'd say that's at least a couple hundred bucks under current market value.
Get it while you can...
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
