here is another pic of when we ran 2000 system long ago!
----- Original Message -----
From: "Bob Shannon" <bshannon_at_tiac.net>
To: <cctalk_at_classiccmp.org>
Sent: Sunday, July 13, 2003 8:54 AM
Subject: Re: IMSAI 8080 Classic Microcomputer System
> Mail List wrote:
>
> > IMSAI 8080 Classic Microcomputer System
> >
> > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2741173742
> >
> I'll go one better than this...
>
> I'm going to sell my Imsai 8080, but I don't want to ship it. I'd
> prefer a 'local' buyer to come see the machine and carry it away
> after verifying it's operational, etc. This Imsai is located in central
> Massachusetts, about 1 1/2 hour west of Boston.
>
> This is not an eBay sale. This is a machine that needs to go to a 'good
> home', like a list member.
>
> The machine...
>
> Is a stock Imsai 8080 with its original CPU (C8080A in the gold on white
> package). It is tested and operational.
> Cosmetic condition is very good, with only minor scratches to the top
> cover. All switches are good, and it has a full
> (22-slot?) set of backplanes installed.
>
> The memory...
>
> Currently there is 40K of (working) SRAM installed in the following
> configuration:
>
> Two 4K byte SSM (Solid State Music) RAM boards with gold on white
> ceramic 2102's (soldered in).
> One 8K Ithaca Audio 1A 1110 Rev B RAM board.
> One 8K Ithaca Audio RAM board with no revision markings, socketed RAM
chips.
> One DRC 8K RAM board, no model or revision markings, socketed RAM chips.
> Two PTCO 4KRA RAM boards (soldered in).
> One S-100 extender board.
>
> The I/O boards...
>
> One Tarbell 1011D FDC.
> One SSM IO-4 board, 2 serial ports, 2 parallel input ports, 2 parallel
> output ports.
>
> Extra stuff not installed in the machine (untested)...
>
> One Canada Peripherals CL2400 Real Time Clock.
> One ThinkerToys Disk Jockey 1.
> One Compuprisim color video display board (16K DRAM).
> Three Solid State Music audio synthesizer boards.
>
> Known non-functional memory boards...
>
> One 8K SRAM board, marked "F. Duston 1977".
> Two PTCO 4K SRAM boards.
> One Vector 8800V prototyping board, unused.
>
> Peripherals and Software...
>
> Two Sugart 8-inch floppy disk drives in an external chassis with power
> supply.
>
> Several boxes of 8-inch floppy disks with CP/M 1.4 and assorted
> software. While the CP/M disks are included
> this machine IS NOT running CP/M! The reason being, when I got the
> machine (from the original builder) the
> I/O board had been removed, and the DIP switch settings changed. I
> don't know the correct configuration settings
> for the BIOS, and I don't currently have enough memory installed to boot
> all of the CP/M builds (48K being the
> most common label on the system disks).
>
> Documentation...
>
> I beleive that all the documentation is present. Many manuals for the
> Imsai chassis, as well as for the various memory
> and I/O boards are present.
>
> Testing performed...
>
> I have run this Imsai and verified the CPU and memory are operational.
> I have also entered the floppy disk test programs
> from the Tarbell controller manual and verfied its ability to read and
> write sectors to drive 0. Also the Tarbell bootstrap
> works correctly.
>
> I have also written simple test routines to send and receive serial data
> from the console serial port. In short, this thing works
> just fine.
>
> Terms and Conditions...
>
> Physically come and see the machine and documentation, and if its state
> is acceptable, pay cash and carry it away. I'll supply
> my own box of tissues and try not to cry uncontrollably as you drive
> away. Once the machine is accepted, there is no warranty
> and I'm not really able to help the buyer get this machine running CP/M.
>
> The Machine's history...
>
> This Imsai was built by a former co-worker. He used it to learn
> programming, experiment with electronic music, and to
> keep records for his bowling league (from looking at his disk labels
> anyway). The machine was placed into storage when
> he went off to college (around the time of the modern PC's
> introduction). On his return, the machine was well behind the
> state of the art, and it never returned to service.
>
> The machine came to me directly from the closet of his parents' home.
> As I was bringing the machine up, it suffered a failure
> of a bridge rectifier diode, and was repaired with new diodes with a
> more appropriate PIV rating for the application. This
> repair is not visible. All the power supply capacitors are original,
> and meet their capacitance and leakage specs.
>
> With a rather low number of total operational hours, the interior of the
> machine is much much cleaner than would be expected
> of this vintage.
>
> I've had the machine for the last 5 years.
>
> Reason for Sale...
>
> I've wanted an Imsai since reading the ads in Popular Electronics back
> when I was in Jr. High School. Several years ago I got
> this machine from its original builder (who did a very reasonable job).
> In the years that I've owned the machine, I have not found
> or made the time to get this machine into its proper state, and I'm
> failing to do it justice. Much of my classic computer time is
> going into my HP machines, and my Imlac as well.
>
> I just have not found the time to conserve this machine properly, I lack
> the low-level CP/M knowledge needed to build or tweak
> the existing O/S into a working state, nor do I have another CP/M system
> to build a CP/M 2.2 disk for it.
>
> So in the painful process of focusing my collection and classic
> computing efforts on my HP 1000's (and Imlac), I'm going to part
> with my treasured Imsai.
>
> Now then, this leaves only one more detail...
>
> The Price...
>
> $1,250.00 USD. Cash and carry. Location is Leominster MA.
>
> Good homes only need apply. Here's your chance to get a 'complete'
> Imsai system for the price some CPU chassis
> go for without drives and extras. Skip the eBay rat-race of last minute
> sniping and get that instant gratification of a
> simple, direct purchase!
>
> Got Blinkenlights? If not, buy a real classic.
>
> If this is the Imsai for you, please email me off list at:
>
> bshannon_at_tiac.net
[demime 1.01a removed an attachment of type image/jpeg which had a name of hp2000_1.jpg]
Received on Sun Jul 13 2003 - 13:36:00 BST