There have been a few versions of the utility imd2raw.c floating around
that will take Dave Dunfield's ImageDisk-created images (i.e. an .IMD file)
and make a linear binary image devoid of any metadata. This is similar to
the function of Dave's IMDU.COM program's /b switch.
I've corrected a problem with the assumption that all imd2raw.c descendants
to date have made: sectors that have a skew (i.e. not 1-1 interleaved)
weren't linearized correctly. The skewed sectors need to be written out in
"sorted" order, which is not necessarily captured/physical order. This is
easily verified by comparing output from "IMDU /b" to earlier imd2raw
outputs on any .IMD that has a sector skew that isn't 1, 2, 3 [...].
It's up on github here:
https://github.com/RetroFloppy/imd2raw
Hello,
I'm an employee with the National radio astronomy observatory here in Socorro New Mexico.
As part of our NGVLA upgrades, we are seeking to get rid of old data tapes from the tape reel days of Computing. These contain things such as the boot loaders, OS, specific collection programs and antenna movement programs.
I personally would hate to see these just wind up in the literal dumpster and would like to see them sent out to a museum or an archiving body that can preserve them and keep them safe as a dynamic part of history.
If anyone is interested or knows someone who would be interested in the VLAs data tape library please let me know.
V/R
Danielle Werts
Front end engineer
VLA Socorro New Mexico
Time to dispose of some more of my stuff so it doesn't
end up in the trash when my widow has to clear the house.
Any interest in BA356-SBs? All with disks in them. And
I have a decent stack of used RZs in caddies. I even still
have 11 RZ28's still in the static bags. Would have to be
someone close enough to pick them up here in the Poconos but
I have seen a lot of postings from people in Eastern PA and
north and middle NJ.
Is it worth my taking the time to count up exactly what I
have or would no one be interested in making an offer.
They will not be going on eBay.
Just for information, I have used these with PDP-11's
with 3rd party SCSI modules, PC's with SCSI Cards and
Ersatz-11 and even a Tandy Color Computer with a TC^3
SCSI card and NitrOS9.
bill
Hi there,
I need a power supply for my PDP8F computer.
It is missing.
The PDP8F 19" chassis box came in 3 different depths,
600 mm (PSU front to back)
370 mm (PSU across the back)
300 mm (PSU front to back)
I need the shallow one, the 300 mm PSU front to back.
Do you have one available, or know where I can get one please.
Even if it is dead!
regards
ray
I'm looking for an HP 9000 Visualize workstation, like a B160L or B180L+.
I'll be attending VCF East in a few weeks so might find one there.
Has anyone used Cypress technology out of Clearwater, FL? It seems they provide a nice, fully configured to spec turnkey solution, but there's no doubt they charge for it.
http://www.cypress-tech.com/
Any better HP-specific forums or references would be appreciated!
Thanks
I know this is a real long shot but is there any chance someone
has a copy of the original distribution of the Amoeba OS from
the University in the Netherlands? Searching the web finds only
the current version which runs on X86. I am looking for the
original which also ran on Sparc and (of the most interest to
me) the VAX.
Remember when they said now that we had the web nothing would
ever be lost again? :-(
bill
Clearly all or virtually all chineseum, correct?
That being the case, um, what type.of.quality can be expected? Some are fairly cheap. I guess thenworld isn't to be expected.
MTM Scientific (Clinton, MI) offered modern redrawn IBM PC 5150 base board
and a Full Kit, at one time.
https://www.mtmscientific.com/pc-retro.html
While he is no longer selling separate blank 5150 boards,
you could inquire about Gerbers.
greg
w9gb
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
>
