Just out of curiosity, what are you using this board for? The IBM 5150
uses at least three different mother boards, 16K, 256k, and I *think*
512K soldered in RAM. Each is expandable to 640K with 3rd sourced RAM
boards.
I should have (somewhere) at least one of each. I also have several 5150
complete units including keyboard (not so sure about the monitors.)
Marvin
> Message: 3
> Date: Fri, 29 Mar 2024 20:04:52 +0000
> From: Just Kant <kantexplain(a)protonmail.com>
> Subject: [cctalk] Re: need a 5150 motherboard
> To: "General Discussion: On-Topic and Off-Topic Posts"
> <cctalk(a)classiccmp.org>
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>
> If you're willing to ship, I'll offer 30$ total. But it has to be IBM.
>
> Sent with Proton Mail secure email.
>
> I have one at Kennett Classic for sale, I think it's $20. I believe it's
> an original IBM, but it may be a close clone. Untested.
> b
>
The board itself, including the traces, has to be in good shape. Don' t care about it's functionality, or even if chips are missing. An actual IBM product, regardless of revision. Might consider an entire 5150 box. NJ.
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On 3/28/2024 7:29 PM, Alexander Schreiber via cctalk wrote:
> On Thu, Mar 28, 2024 at 05:02:10PM +0000, Alessandro Mazzini via cctalk wrote:
>> Sorry if I intrude... now is no more possible to obtain hobbyist licenses for vms ??
>
> Not for OpenVMS/VAX, that stopped more than a year ago. IIRC you _can_
> get something like[1] it for OpenVMS/amd64 from VMS Software.
>
> The only legal[0] workaround for VMS on VAX is to go back all the way
> before LMF was introduced which IIRC means running VMS 4.4 and nothing
> newer.
>
> Sad and mildly irritating, but nothing we can do about it.
>
> Kind regards,
> Alex.
>
> [0] Personal opinion. Worth every cent you paid for it. I'm not a lawyer
> and I never played one on TV. Void were prohibited. Caveat emptor.
> [1] Last time I checked, there was a time limited "educational purposes"
> virtual machine image one could download and run with the appropriate
> hypervisor software.
^^^^^^
That is going away, too.
bill
On 3/28/2024 1:25 PM, Paul Koning via cctalk wrote:
>
>
>> On Mar 28, 2024, at 1:02 PM, Alessandro Mazzini via cctalk <cctalk(a)classiccmp.org> wrote:
>>
>> Sorry if I intrude... now is no more possible to obtain hobbyist licenses for vms ??
>
> You can still get one for OpenVMS/x86.
>
As of the past few days, that may not be the case anymore.
bill
All,
I'm looking for a Cromemco System Zero, doesn't matter if it's empty or not. Please contact me off-list if you have one to sell/trade or know of one!
Thanks,
Jonathan
On 3/26/2024 9:15 AM, Paul Koning wrote:
>
>
>> On Mar 26, 2024, at 8:57 AM, Bill Gunshannon via cctalk <cctalk(a)classiccmp.org> wrote:
>>
>>
>>
>> On 3/25/2024 9:51 PM, Henry Bent wrote:
>>> On Mon, 25 Mar 2024 at 20:14, Bill Gunshannon via cctalk <cctalk(a)classiccmp.org <mailto:cctalk@classiccmp.org>> wrote:
>>> Oops. I guess the fingers work as good as the memory. Sorry
>>> about that. I've got about 20 of them. I know they haven't
>>> been used since they were taken out of the VAX Cluster I ran
>>> at the University. Nothing I have used the SB boxes with since
>>> then would know what to do with 9GB of disk space. :-)
>>> But, if needed I could probably test them on a PC I have with
>>> an Adaptec SCSI in it. It's intended for Ersatz-11 but I expect
>>> does could use a disk that big. Too bad there's no way to read
>>> them. Might be some interesting stuff left behind by the VAX.
>>> Why is there no way to read them? If you have a PC with a SCSI card you can easily boot into the Linux or BSD distro of your choice and make a dd (or ddrescue) image of the entire drive, which could then be accessed by whatever means.
>>
>>
>> These disks were part of a really large RAID array in a SAN connected to
>> the VAX cluster. There is no way of reconstructing it and so no way to
>> extract usable information.
>>
>> bill
>
> Do you have just part of the RAID set, or enough disks to make a complete one?
Don't know, but doubt it. Some of the disks have probably been used
for other purposes since the VAXen went away more than 20 years ago.
> If the latter then it's a matter of reverse engineering the RAID layout,
> which is likely to be doable.
While possible, I think hardly likely. I don't even remember what the
appliance was. Something DECish.
bill
I have often wondered about the people we find in the various
DEC Processor (and other) books. Were they models in staged
photo-sessions or were these candid shots from DEC facilities
and if so, can anyone identify who they might be.
Looking thru some of the books again I came across an interesting
photo on page 42 of the 1981 pdp11 processor handbook / pdp11 04
24 34a 44 70. If you take a magnifier to the picture you will
find the system presented in that photo is not a pdp11 but a VAX. :-)
I wonder what other DEC systems are contained in these photos?
bill
I just got a pdp-11 to boot and it seems to have rt-11 installed. How do I do an orderly shutdown? Google has info on simh but this ain't that.
Thanks!
73 Eugene w2hx
I'm trying to build some prototype Tomy Tutor cartridges of my own but I'm all
thumbs in KiCad, and while prefab ones exist that I can just add an EPROM to,
they're in ExpressPCB and PCBWay wants Gerbers. This Mac won't run ExpressPCB,
or at least not in a way that wouldn't involve a significant expenditure.
Is someone out there with a copy of ExpressPCB willing to convert these to
Gerbers I can upload? They're quite small so it should be a simple task. If so,
please contact me off-list with many thanks!
--
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser(a)floodgap.com
-- E pluribus Unix ------------------------------------------------------------
