Next Repair Workshop Oct. 4 & 5
There is someone looking to make 8" disks from images that he has. He recently acquired a fully functional IBM 5110-3 (or 5120) with dual 8-inch disk drives. He found the image files to make 6 disks with various applications for this computer. Is there someone that can make the disk images for him and bring to the repair workshop? Thanks! Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey@vcfed.org
Hello! You mean 5&6 dates, not 4&5, the fourth is a Friday. And I am busy that weekend. Otherwise I'd give anything to be there to see this amazing machine working. ----- Gregg C Levine gregg.drwho8@gmail.com "This signature was present when the impossible happened 23 years ago, twice." On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote:
There is someone looking to make 8" disks from images that he has. He recently acquired a fully functional IBM 5110-3 (or 5120) with dual 8-inch disk drives. He found the image files to make 6 disks with various applications for this computer.
Is there someone that can make the disk images for him and bring to the repair workshop?
Thanks!
Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey@vcfed.org
Yes. Thanks. Sorry for the mixup! Repair workshop is October 5 & 6! On Mon, Sep 16, 2024 at 11:50 PM Gregg Levine <gregg.drwho8@gmail.com> wrote:
Hello! You mean 5&6 dates, not 4&5, the fourth is a Friday. And I am busy that weekend. Otherwise I'd give anything to be there to see this amazing machine working. ----- Gregg C Levine gregg.drwho8@gmail.com "This signature was present when the impossible happened 23 years ago, twice."
On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote:
There is someone looking to make 8" disks from images that he has. He recently acquired a fully functional IBM 5110-3 (or 5120) with dual
8-inch
disk drives. He found the image files to make 6 disks with various applications for this computer.
Is there someone that can make the disk images for him and bring to the repair workshop?
Thanks!
Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey@vcfed.org
I used a Greaseweazle to both successfully image and recreate 8" disks for an OSI computer a couple years ago. Since it's flux based, as long at the track spacing for the 5110 disks are the same as conventional 8" disks, then it can theoretically be done using a Greaseweazle setup. I always bring my Greaseweazle kit with me to Workshops, so I expect to have mine available at the next one. I would like to see what the image files are. If the images are pure flux, then I won't need to do much preparation to try and create a disk from those images. The Greaseweazle software recognizes quite a few popular (and uncommon) disk formats, and can recreate the flux transitions on the fly as it writes the data out to the track. The only caveat is, having a 5110 available to test out the disks. Greaseweazle works with flux resolutions down to 25ns, so that might not be an issue, but it would be nice to test them right away. Jeff Salzman On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
There is someone looking to make 8" disks from images that he has. He recently acquired a fully functional IBM 5110-3 (or 5120) with dual 8-inch disk drives. He found the image files to make 6 disks with various applications for this computer.
Is there someone that can make the disk images for him and bring to the repair workshop?
Thanks!
Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey@vcfed.org
https://forum.vcfed.org/index.php?threads/does-anyone-have-a-working-8-inch-... took quick look at zip and files had extension imd so should be pretty standard. Life got complicated so didn't go any further. -------- Original message --------From: Jeff S via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Date: 9/17/24 11:05 AM (GMT-05:00) To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Cc: Jeff S <jsalzman@gmail.com> Subject: Re: [vcf-midatlantic] Next Repair Workshop Oct. 4 & 5 I used a Greaseweazle to both successfully image and recreate 8" disks foran OSI computer a couple years ago. Since it's flux based, as long at thetrack spacing for the 5110 disks are the same as conventional 8" disks,then it can theoretically be done using a Greaseweazle setup. I alwaysbring my Greaseweazle kit with me to Workshops, so I expect to have mineavailable at the next one.I would like to see what the image files are. If the images are pure flux,then I won't need to do much preparation to try and create a disk fromthose images. The Greaseweazle software recognizes quite a few popular (anduncommon) disk formats, and can recreate the flux transitions on the fly asit writes the data out to the track. The only caveat is, having a 5110available to test out the disks. Greaseweazle works with flux resolutionsdown to 25ns, so that might not be an issue, but it would be nice to testthem right away.Jeff SalzmanOn Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote:> There is someone looking to make 8" disks from images that he has. He> recently acquired a fully functional IBM 5110-3 (or 5120) with dual 8-inch> disk drives. He found the image files to make 6 disks with various> applications for this computer.>> Is there someone that can make the disk images for him and bring to the> repair workshop?>> Thanks!>> Jeff Brace> VCF National Board Member Chairman & Vice President> Vintage Computer Festival East Showrunner> VCF Mid-Atlantic Event Manager> Vintage Computer Federation is a 501c3 charity> https://vcfed.org/ <http://www.vcfed.org/>> jeffrey@vcfed.org>
I looked at the IMD files in HxCFloppy emulator. They are decoded as 77 tracks (probably a forced overread for that 77th track), double-sided, 15 sectors per track. I see a lot of binary data, but there are a few decodable sequences in some sectors that show portions of the alphabet, in sequence, in capital and lowercase letters. This may indicate that the decoded image data is correct. I've always found that if I can read a disk image cleanly in HxC Floppy Emulator, I can generally use it in Greaseweazle to write out to a disk. But ultimately, it's up the actual machine the disk is made for that will decide in the process works. On Tue, Sep 17, 2024 at 11:17 AM djg <djg@pdp8online.com> wrote:
https://forum.vcfed.org/index.php?threads/does-anyone-have-a-working-8-inch-...
I took quick look at zip and files had extension imd so should be pretty standard. Life got complicated so didn't go any further.
-------- Original message -------- From: Jeff S via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Date: 9/17/24 11:05 AM (GMT-05:00) To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Cc: Jeff S <jsalzman@gmail.com> Subject: Re: [vcf-midatlantic] Next Repair Workshop Oct. 4 & 5
I used a Greaseweazle to both successfully image and recreate 8" disks for an OSI computer a couple years ago. Since it's flux based, as long at the track spacing for the 5110 disks are the same as conventional 8" disks, then it can theoretically be done using a Greaseweazle setup. I always bring my Greaseweazle kit with me to Workshops, so I expect to have mine available at the next one.
I would like to see what the image files are. If the images are pure flux, then I won't need to do much preparation to try and create a disk from those images. The Greaseweazle software recognizes quite a few popular (and uncommon) disk formats, and can recreate the flux transitions on the fly as it writes the data out to the track. The only caveat is, having a 5110 available to test out the disks. Greaseweazle works with flux resolutions down to 25ns, so that might not be an issue, but it would be nice to test them right away.
Jeff Salzman
On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
There is someone looking to make 8" disks from images that he has. He recently acquired a fully functional IBM 5110-3 (or 5120) with dual 8-inch disk drives. He found the image files to make 6 disks with various applications for this computer.
Is there someone that can make the disk images for him and bring to the repair workshop?
Thanks!
Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey@vcfed.org
On Tue, Sep 17, 2024 at 11:51 AM Jeff S via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
I looked at the IMD files in HxCFloppy emulator. They are decoded as 77 tracks (probably a forced overread for that 77th track), double-sided, 15 sectors per track. I see a lot of binary data, but there are a few decodable sequences in some sectors that show portions of the alphabet, in sequence, in capital and lowercase letters. This may indicate that the decoded image data is correct. I've always found that if I can read a disk image cleanly in HxC Floppy Emulator, I can generally use it in Greaseweazle to write out to a disk. But ultimately, it's up the actual machine the disk is made for that will decide in the process works.
So do you think that you can decode the images and copy them to 8" floppies?
On Tue, Sep 17, 2024 at 11:17 AM djg <djg@pdp8online.com> wrote:
https://forum.vcfed.org/index.php?threads/does-anyone-have-a-working-8-inch-...
I took quick look at zip and files had extension imd so should be pretty standard. Life got complicated so didn't go any further.
-------- Original message -------- From: Jeff S via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Date: 9/17/24 11:05 AM (GMT-05:00) To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Cc: Jeff S <jsalzman@gmail.com> Subject: Re: [vcf-midatlantic] Next Repair Workshop Oct. 4 & 5
I used a Greaseweazle to both successfully image and recreate 8" disks
for
an OSI computer a couple years ago. Since it's flux based, as long at the track spacing for the 5110 disks are the same as conventional 8" disks, then it can theoretically be done using a Greaseweazle setup. I always bring my Greaseweazle kit with me to Workshops, so I expect to have mine available at the next one.
I would like to see what the image files are. If the images are pure flux, then I won't need to do much preparation to try and create a disk from those images. The Greaseweazle software recognizes quite a few popular (and uncommon) disk formats, and can recreate the flux transitions on the fly as it writes the data out to the track. The only caveat is, having a 5110 available to test out the disks. Greaseweazle works with flux resolutions down to 25ns, so that might not be an issue, but it would be nice to test them right away.
Jeff Salzman
On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
There is someone looking to make 8" disks from images that he has. He recently acquired a fully functional IBM 5110-3 (or 5120) with dual 8-inch disk drives. He found the image files to make 6 disks with various applications for this computer.
Is there someone that can make the disk images for him and bring to the repair workshop?
Thanks!
Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey@vcfed.org
Wouldn't need to be decoded at all. Greaseweazle accepts the disk image format, then uses the data in the image file to create the equivalent flux on the fly as it writes to a disk. On Tue, Sep 17, 2024, 4:56 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
On Tue, Sep 17, 2024 at 11:51 AM Jeff S via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
I looked at the IMD files in HxCFloppy emulator. They are decoded as 77 tracks (probably a forced overread for that 77th track), double-sided, 15 sectors per track. I see a lot of binary data, but there are a few decodable sequences in some sectors that show portions of the alphabet, in sequence, in capital and lowercase letters. This may indicate that the decoded image data is correct. I've always found that if I can read a disk image cleanly in HxC Floppy Emulator, I can generally use it in Greaseweazle to write out to a disk. But ultimately, it's up the actual machine the disk is made for that will decide in the process works.
So do you think that you can decode the images and copy them to 8" floppies?
On Tue, Sep 17, 2024 at 11:17 AM djg <djg@pdp8online.com> wrote:
https://forum.vcfed.org/index.php?threads/does-anyone-have-a-working-8-inch-...
I took quick look at zip and files had extension imd so should be pretty standard. Life got complicated so didn't go any further.
-------- Original message -------- From: Jeff S via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Date: 9/17/24 11:05 AM (GMT-05:00) To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Cc: Jeff S <jsalzman@gmail.com> Subject: Re: [vcf-midatlantic] Next Repair Workshop Oct. 4 & 5
I used a Greaseweazle to both successfully image and recreate 8" disks
for
an OSI computer a couple years ago. Since it's flux based, as long at the track spacing for the 5110 disks are the same as conventional 8" disks, then it can theoretically be done using a Greaseweazle setup. I always bring my Greaseweazle kit with me to Workshops, so I expect to have mine available at the next one.
I would like to see what the image files are. If the images are pure flux, then I won't need to do much preparation to try and create a disk from those images. The Greaseweazle software recognizes quite a few popular (and uncommon) disk formats, and can recreate the flux transitions on the fly as it writes the data out to the track. The only caveat is, having a 5110 available to test out the disks. Greaseweazle works with flux resolutions down to 25ns, so that might not be an issue, but it would be nice to test them right away.
Jeff Salzman
On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
There is someone looking to make 8" disks from images that he has. He recently acquired a fully functional IBM 5110-3 (or 5120) with dual 8-inch disk drives. He found the image files to make 6 disks with various applications for this computer.
Is there someone that can make the disk images for him and bring to the repair workshop?
Thanks!
Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey@vcfed.org
Ah, I see. So should I tell the guy that you will make the floppies for him and will bring them to the next repair workshop? On Tue, Sep 17, 2024 at 6:52 PM Jeff S <jsalzman@gmail.com> wrote:
Wouldn't need to be decoded at all. Greaseweazle accepts the disk image format, then uses the data in the image file to create the equivalent flux on the fly as it writes to a disk.
On Tue, Sep 17, 2024, 4:56 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
On Tue, Sep 17, 2024 at 11:51 AM Jeff S via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
I looked at the IMD files in HxCFloppy emulator. They are decoded as 77 tracks (probably a forced overread for that 77th track), double-sided, 15 sectors per track. I see a lot of binary data, but there are a few decodable sequences in some sectors that show portions of the alphabet, in sequence, in capital and lowercase letters. This may indicate that the decoded image data is correct. I've always found that if I can read a disk image cleanly in HxC Floppy Emulator, I can generally use it in Greaseweazle to write out to a disk. But ultimately, it's up the actual machine the disk is made for that will decide in the process works.
So do you think that you can decode the images and copy them to 8" floppies?
On Tue, Sep 17, 2024 at 11:17 AM djg <djg@pdp8online.com> wrote:
https://forum.vcfed.org/index.php?threads/does-anyone-have-a-working-8-inch-...
I took quick look at zip and files had extension imd so should be
pretty
standard. Life got complicated so didn't go any further.
-------- Original message -------- From: Jeff S via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Date: 9/17/24 11:05 AM (GMT-05:00) To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Cc: Jeff S <jsalzman@gmail.com> Subject: Re: [vcf-midatlantic] Next Repair Workshop Oct. 4 & 5
I used a Greaseweazle to both successfully image and recreate 8" disks for an OSI computer a couple years ago. Since it's flux based, as long at the track spacing for the 5110 disks are the same as conventional 8" disks, then it can theoretically be done using a Greaseweazle setup. I always bring my Greaseweazle kit with me to Workshops, so I expect to have mine available at the next one.
I would like to see what the image files are. If the images are pure flux, then I won't need to do much preparation to try and create a disk from those images. The Greaseweazle software recognizes quite a few popular (and uncommon) disk formats, and can recreate the flux transitions on the fly as it writes the data out to the track. The only caveat is, having a 5110 available to test out the disks. Greaseweazle works with flux resolutions down to 25ns, so that might not be an issue, but it would be nice to test them right away.
Jeff Salzman
On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
There is someone looking to make 8" disks from images that he has. He recently acquired a fully functional IBM 5110-3 (or 5120) with dual 8-inch disk drives. He found the image files to make 6 disks with various applications for this computer.
Is there someone that can make the disk images for him and bring to the repair workshop?
Thanks!
Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey@vcfed.org
I can certainly attempt to. I will probably need an 8" drive, data cable, and suitable power supply for the drive. An 8" external drive from the warehouse might have the power supply built-in and an appropriate data cable. The only caveat is being able to test the disk on real hardware. As mentioned before, I was successful with this operation on OSI disks already. On Tue, Sep 17, 2024, 6:59 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
Ah, I see. So should I tell the guy that you will make the floppies for him and will bring them to the next repair workshop?
On Tue, Sep 17, 2024 at 6:52 PM Jeff S <jsalzman@gmail.com> wrote:
Wouldn't need to be decoded at all. Greaseweazle accepts the disk image format, then uses the data in the image file to create the equivalent flux on the fly as it writes to a disk.
On Tue, Sep 17, 2024, 4:56 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
On Tue, Sep 17, 2024 at 11:51 AM Jeff S via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
I looked at the IMD files in HxCFloppy emulator. They are decoded as 77 tracks (probably a forced overread for that 77th track), double-sided, 15 sectors per track. I see a lot of binary data, but there are a few decodable sequences in some sectors that show portions of the alphabet, in sequence, in capital and lowercase letters. This may indicate that the decoded image data is correct. I've always found that if I can read a disk image cleanly in HxC Floppy Emulator, I can generally use it in Greaseweazle to write out to a disk. But ultimately, it's up the actual machine the disk is made for that will decide in the process works.
So do you think that you can decode the images and copy them to 8" floppies?
On Tue, Sep 17, 2024 at 11:17 AM djg <djg@pdp8online.com> wrote:
https://forum.vcfed.org/index.php?threads/does-anyone-have-a-working-8-inch-...
I took quick look at zip and files had extension imd so should be
pretty
standard. Life got complicated so didn't go any further.
-------- Original message -------- From: Jeff S via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Date: 9/17/24 11:05 AM (GMT-05:00) To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Cc: Jeff S <jsalzman@gmail.com> Subject: Re: [vcf-midatlantic] Next Repair Workshop Oct. 4 & 5
I used a Greaseweazle to both successfully image and recreate 8" disks for an OSI computer a couple years ago. Since it's flux based, as long at the track spacing for the 5110 disks are the same as conventional 8" disks, then it can theoretically be done using a Greaseweazle setup. I always bring my Greaseweazle kit with me to Workshops, so I expect to have mine available at the next one.
I would like to see what the image files are. If the images are pure flux, then I won't need to do much preparation to try and create a disk from those images. The Greaseweazle software recognizes quite a few popular (and uncommon) disk formats, and can recreate the flux transitions on the fly as it writes the data out to the track. The only caveat is, having a 5110 available to test out the disks. Greaseweazle works with flux resolutions down to 25ns, so that might not be an issue, but it would be nice to test them right away.
Jeff Salzman
On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
There is someone looking to make 8" disks from images that he has. He recently acquired a fully functional IBM 5110-3 (or 5120) with dual 8-inch disk drives. He found the image files to make 6 disks with various applications for this computer.
Is there someone that can make the disk images for him and bring to the repair workshop?
Thanks!
Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey@vcfed.org
On Tue, Sep 17, 2024 at 7:03 PM Jeff S <jsalzman@gmail.com> wrote:
I can certainly attempt to. I will probably need an 8" drive, data cable, and suitable power supply for the drive.
An 8" external drive from the warehouse might have the power supply built-in and an appropriate data cable.
The only caveat is being able to test the disk on real hardware. As mentioned before, I was successful with this operation on OSI disks already.
OK. Let's take this offline and see if we can consult with Thomas to see what we have in the warehouse.
On Tue, Sep 17, 2024, 6:59 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
Ah, I see. So should I tell the guy that you will make the floppies for him and will bring them to the next repair workshop?
On Tue, Sep 17, 2024 at 6:52 PM Jeff S <jsalzman@gmail.com> wrote:
Wouldn't need to be decoded at all. Greaseweazle accepts the disk image format, then uses the data in the image file to create the equivalent flux on the fly as it writes to a disk.
On Tue, Sep 17, 2024, 4:56 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
On Tue, Sep 17, 2024 at 11:51 AM Jeff S via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
I looked at the IMD files in HxCFloppy emulator. They are decoded as 77 tracks (probably a forced overread for that 77th track), double-sided, 15 sectors per track. I see a lot of binary data, but there are a few decodable sequences in some sectors that show portions of the alphabet, in sequence, in capital and lowercase letters. This may indicate that the decoded image data is correct. I've always found that if I can read a disk image cleanly in HxC Floppy Emulator, I can generally use it in Greaseweazle to write out to a disk. But ultimately, it's up the actual machine the disk is made for that will decide in the process works.
So do you think that you can decode the images and copy them to 8" floppies?
On Tue, Sep 17, 2024 at 11:17 AM djg <djg@pdp8online.com> wrote:
https://forum.vcfed.org/index.php?threads/does-anyone-have-a-working-8-inch-...
I took quick look at zip and files had extension imd so should be
pretty
standard. Life got complicated so didn't go any further.
-------- Original message -------- From: Jeff S via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Date: 9/17/24 11:05 AM (GMT-05:00) To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Cc: Jeff S <jsalzman@gmail.com> Subject: Re: [vcf-midatlantic] Next Repair Workshop Oct. 4 & 5
I used a Greaseweazle to both successfully image and recreate 8" disks for an OSI computer a couple years ago. Since it's flux based, as long at the track spacing for the 5110 disks are the same as conventional 8" disks, then it can theoretically be done using a Greaseweazle setup. I always bring my Greaseweazle kit with me to Workshops, so I expect to have mine available at the next one.
I would like to see what the image files are. If the images are pure flux, then I won't need to do much preparation to try and create a disk from those images. The Greaseweazle software recognizes quite a few popular (and uncommon) disk formats, and can recreate the flux transitions on the fly as it writes the data out to the track. The only caveat is, having a 5110 available to test out the disks. Greaseweazle works with flux resolutions down to 25ns, so that might not be an issue, but it would be nice to test them right away.
Jeff Salzman
On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
> There is someone looking to make 8" disks from images that he has. He > recently acquired a fully functional IBM 5110-3 (or 5120) with dual 8-inch > disk drives. He found the image files to make 6 disks with various > applications for this computer. > > Is there someone that can make the disk images for him and bring to the > repair workshop? > > Thanks! > > Jeff Brace > VCF National Board Member Chairman & Vice President > Vintage Computer Festival East Showrunner > VCF Mid-Atlantic Event Manager > Vintage Computer Federation is a 501c3 charity > https://vcfed.org/ <http://www.vcfed.org/> > jeffrey@vcfed.org >
I would like to see us use the time to expand our greaseweazle to have an 8" drive hooked up and then give the imaging a try. I'd recommend the whole computer setup arrive so we can test the copies- assuming that all works, if not, do a restoration in parallel with the weazle 8" augmentation. Someone has my 8" drive floppy cable adapter interface... Ian? Thomas? -DC On 9/17/2024 10:21 PM, Jeffrey Brace via vcf-midatlantic wrote:
On Tue, Sep 17, 2024 at 7:03 PM Jeff S <jsalzman@gmail.com> wrote:
I can certainly attempt to. I will probably need an 8" drive, data cable, and suitable power supply for the drive.
An 8" external drive from the warehouse might have the power supply built-in and an appropriate data cable.
The only caveat is being able to test the disk on real hardware. As mentioned before, I was successful with this operation on OSI disks already.
OK. Let's take this offline and see if we can consult with Thomas to see what we have in the warehouse.
On Tue, Sep 17, 2024, 6:59 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
Ah, I see. So should I tell the guy that you will make the floppies for him and will bring them to the next repair workshop?
On Tue, Sep 17, 2024 at 6:52 PM Jeff S <jsalzman@gmail.com> wrote:
Wouldn't need to be decoded at all. Greaseweazle accepts the disk image format, then uses the data in the image file to create the equivalent flux on the fly as it writes to a disk.
On Tue, Sep 17, 2024, 4:56 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
On Tue, Sep 17, 2024 at 11:51 AM Jeff S via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
I looked at the IMD files in HxCFloppy emulator. They are decoded as 77 tracks (probably a forced overread for that 77th track), double-sided, 15 sectors per track. I see a lot of binary data, but there are a few decodable sequences in some sectors that show portions of the alphabet, in sequence, in capital and lowercase letters. This may indicate that the decoded image data is correct. I've always found that if I can read a disk image cleanly in HxC Floppy Emulator, I can generally use it in Greaseweazle to write out to a disk. But ultimately, it's up the actual machine the disk is made for that will decide in the process works.
So do you think that you can decode the images and copy them to 8" floppies?
On Tue, Sep 17, 2024 at 11:17 AM djg <djg@pdp8online.com> wrote:
> > https://forum.vcfed.org/index.php?threads/does-anyone-have-a-working-8-inch-... > > I took quick look at zip and files had extension imd so should be pretty > standard. Life got complicated so didn't go any further. > > -------- Original message -------- > From: Jeff S via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> > Date: 9/17/24 11:05 AM (GMT-05:00) > To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> > Cc: Jeff S <jsalzman@gmail.com> > Subject: Re: [vcf-midatlantic] Next Repair Workshop Oct. 4 & 5 > > I used a Greaseweazle to both successfully image and recreate 8" disks for > an OSI computer a couple years ago. Since it's flux based, as long at the > track spacing for the 5110 disks are the same as conventional 8" disks, > then it can theoretically be done using a Greaseweazle setup. I always > bring my Greaseweazle kit with me to Workshops, so I expect to have mine > available at the next one. > > I would like to see what the image files are. If the images are pure flux, > then I won't need to do much preparation to try and create a disk from > those images. The Greaseweazle software recognizes quite a few popular (and > uncommon) disk formats, and can recreate the flux transitions on the fly as > it writes the data out to the track. The only caveat is, having a 5110 > available to test out the disks. Greaseweazle works with flux resolutions > down to 25ns, so that might not be an issue, but it would be nice to test > them right away. > > Jeff Salzman > > On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic < > vcf-midatlantic@lists.vcfed.org> wrote: > >> There is someone looking to make 8" disks from images that he has. He >> recently acquired a fully functional IBM 5110-3 (or 5120) with dual > 8-inch >> disk drives. He found the image files to make 6 disks with various >> applications for this computer. >> >> Is there someone that can make the disk images for him and bring to the >> repair workshop? >> >> Thanks! >> >> Jeff Brace >> VCF National Board Member Chairman & Vice President >> Vintage Computer Festival East Showrunner >> VCF Mid-Atlantic Event Manager >> Vintage Computer Federation is a 501c3 charity >> https://vcfed.org/ <http://www.vcfed.org/> >> jeffrey@vcfed.org >> >
-- Douglas Crawford VCF Mid-Atlantic Museum Mgr InfoAge Science & History Museums 2201 Marconi Road Wall, NJ 07719
Doug I have it. On Sat, Sep 21, 2024 at 5:00 PM Douglas Crawford via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
I would like to see us use the time to expand our greaseweazle to have an 8" drive hooked up and then give the imaging a try. I'd recommend the whole computer setup arrive so we can test the copies- assuming that all works, if not, do a restoration in parallel with the weazle 8" augmentation. Someone has my 8" drive floppy cable adapter interface... Ian? Thomas? -DC
On 9/17/2024 10:21 PM, Jeffrey Brace via vcf-midatlantic wrote:
On Tue, Sep 17, 2024 at 7:03 PM Jeff S <jsalzman@gmail.com> wrote:
I can certainly attempt to. I will probably need an 8" drive, data cable, and suitable power supply for the drive.
An 8" external drive from the warehouse might have the power supply built-in and an appropriate data cable.
The only caveat is being able to test the disk on real hardware. As mentioned before, I was successful with this operation on OSI disks already.
OK. Let's take this offline and see if we can consult with Thomas to see what we have in the warehouse.
On Tue, Sep 17, 2024, 6:59 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
Ah, I see. So should I tell the guy that you will make the floppies for him and will bring them to the next repair workshop?
On Tue, Sep 17, 2024 at 6:52 PM Jeff S <jsalzman@gmail.com> wrote:
Wouldn't need to be decoded at all. Greaseweazle accepts the disk
image
format, then uses the data in the image file to create the equivalent flux on the fly as it writes to a disk.
On Tue, Sep 17, 2024, 4:56 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
On Tue, Sep 17, 2024 at 11:51 AM Jeff S via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
> I looked at the IMD files in HxCFloppy emulator. They are decoded as 77 > tracks (probably a forced overread for that 77th track), double-sided, > 15 > sectors per track. I see a lot of binary data, but there are a few > decodable sequences in some sectors that show portions of the > alphabet, in > sequence, in capital and lowercase letters. This may indicate that the > decoded image data is correct. I've always found that if I can read a > disk > image cleanly in HxC Floppy Emulator, I can generally use it in > Greaseweazle to write out to a disk. But ultimately, it's up the actual > machine the disk is made for that will decide in the process works. >
So do you think that you can decode the images and copy them to 8" floppies?
> > On Tue, Sep 17, 2024 at 11:17 AM djg <djg@pdp8online.com> wrote: > >> >> > https://forum.vcfed.org/index.php?threads/does-anyone-have-a-working-8-inch-... >> >> I took quick look at zip and files had extension imd so should be > pretty >> standard. Life got complicated so didn't go any further. >> >> -------- Original message -------- >> From: Jeff S via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> >> Date: 9/17/24 11:05 AM (GMT-05:00) >> To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> >> Cc: Jeff S <jsalzman@gmail.com> >> Subject: Re: [vcf-midatlantic] Next Repair Workshop Oct. 4 & 5 >> >> I used a Greaseweazle to both successfully image and recreate 8" > disks for >> an OSI computer a couple years ago. Since it's flux based, as long > at the >> track spacing for the 5110 disks are the same as conventional 8" > disks, >> then it can theoretically be done using a Greaseweazle setup. I > always >> bring my Greaseweazle kit with me to Workshops, so I expect to have > mine >> available at the next one. >> >> I would like to see what the image files are. If the images are pure > flux, >> then I won't need to do much preparation to try and create a disk > from >> those images. The Greaseweazle software recognizes quite a few > popular (and >> uncommon) disk formats, and can recreate the flux transitions on the > fly as >> it writes the data out to the track. The only caveat is, having a > 5110 >> available to test out the disks. Greaseweazle works with flux > resolutions >> down to 25ns, so that might not be an issue, but it would be nice to > test >> them right away. >> >> Jeff Salzman >> >> On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic < >> vcf-midatlantic@lists.vcfed.org> wrote: >> >>> There is someone looking to make 8" disks from images that he has. > He >>> recently acquired a fully functional IBM 5110-3 (or 5120) with dual >> 8-inch >>> disk drives. He found the image files to make 6 disks with various >>> applications for this computer. >>> >>> Is there someone that can make the disk images for him and bring > to the >>> repair workshop? >>> >>> Thanks! >>> >>> Jeff Brace >>> VCF National Board Member Chairman & Vice President >>> Vintage Computer Festival East Showrunner >>> VCF Mid-Atlantic Event Manager >>> Vintage Computer Federation is a 501c3 charity >>> https://vcfed.org/ <http://www.vcfed.org/> >>> jeffrey@vcfed.org >>> >> >
-- Douglas Crawford VCF Mid-Atlantic Museum Mgr InfoAge Science & History Museums 2201 Marconi Road Wall, NJ 07719
-- Bart Hirst "This signature will now be eaten up and spit out by Velociraptors."
So just a quick question From the dates it seems that there is not going to be any work shop during the day of the swap meet correct? Sent from: My extremely complicated, hand held electronic device.
On Sep 21, 2024, at 9:06 PM, Bart Hirst via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote:
Doug I have it.
On Sat, Sep 21, 2024 at 5:00 PM Douglas Crawford via vcf-midatlantic < vcf-midatlantic@lists.vcfed.org> wrote:
I would like to see us use the time to expand our greaseweazle to have an 8" drive hooked up and then give the imaging a try. I'd recommend the whole computer setup arrive so we can test the copies- assuming that all works, if not, do a restoration in parallel with the weazle 8" augmentation. Someone has my 8" drive floppy cable adapter interface... Ian? Thomas? -DC
On 9/17/2024 10:21 PM, Jeffrey Brace via vcf-midatlantic wrote:
On Tue, Sep 17, 2024 at 7:03 PM Jeff S <jsalzman@gmail.com> wrote:
I can certainly attempt to. I will probably need an 8" drive, data cable, and suitable power supply for the drive.
An 8" external drive from the warehouse might have the power supply built-in and an appropriate data cable.
The only caveat is being able to test the disk on real hardware. As mentioned before, I was successful with this operation on OSI disks already.
OK. Let's take this offline and see if we can consult with Thomas to see what we have in the warehouse.
On Tue, Sep 17, 2024, 6:59 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
Ah, I see. So should I tell the guy that you will make the floppies for him and will bring them to the next repair workshop?
On Tue, Sep 17, 2024 at 6:52 PM Jeff S <jsalzman@gmail.com> wrote:
Wouldn't need to be decoded at all. Greaseweazle accepts the disk
image
format, then uses the data in the image file to create the equivalent flux on the fly as it writes to a disk.
On Tue, Sep 17, 2024, 4:56 PM Jeffrey Brace <jeffrey@vcfed.org> wrote:
> On Tue, Sep 17, 2024 at 11:51 AM Jeff S via vcf-midatlantic < > vcf-midatlantic@lists.vcfed.org> wrote: > >> I looked at the IMD files in HxCFloppy emulator. They are decoded as 77 >> tracks (probably a forced overread for that 77th track), double-sided, >> 15 >> sectors per track. I see a lot of binary data, but there are a few >> decodable sequences in some sectors that show portions of the >> alphabet, in >> sequence, in capital and lowercase letters. This may indicate that the >> decoded image data is correct. I've always found that if I can read a >> disk >> image cleanly in HxC Floppy Emulator, I can generally use it in >> Greaseweazle to write out to a disk. But ultimately, it's up the actual >> machine the disk is made for that will decide in the process works. >> > > So do you think that you can decode the images and copy them to 8" > floppies? > > >> >> On Tue, Sep 17, 2024 at 11:17 AM djg <djg@pdp8online.com> wrote: >> >>> >>> >> https://forum.vcfed.org/index.php?threads/does-anyone-have-a-working-8-inch-... >>> >>> I took quick look at zip and files had extension imd so should be >> pretty >>> standard. Life got complicated so didn't go any further. >>> >>> -------- Original message -------- >>> From: Jeff S via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> >>> Date: 9/17/24 11:05 AM (GMT-05:00) >>> To: vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> >>> Cc: Jeff S <jsalzman@gmail.com> >>> Subject: Re: [vcf-midatlantic] Next Repair Workshop Oct. 4 & 5 >>> >>> I used a Greaseweazle to both successfully image and recreate 8" >> disks for >>> an OSI computer a couple years ago. Since it's flux based, as long >> at the >>> track spacing for the 5110 disks are the same as conventional 8" >> disks, >>> then it can theoretically be done using a Greaseweazle setup. I >> always >>> bring my Greaseweazle kit with me to Workshops, so I expect to have >> mine >>> available at the next one. >>> >>> I would like to see what the image files are. If the images are pure >> flux, >>> then I won't need to do much preparation to try and create a disk >> from >>> those images. The Greaseweazle software recognizes quite a few >> popular (and >>> uncommon) disk formats, and can recreate the flux transitions on the >> fly as >>> it writes the data out to the track. The only caveat is, having a >> 5110 >>> available to test out the disks. Greaseweazle works with flux >> resolutions >>> down to 25ns, so that might not be an issue, but it would be nice to >> test >>> them right away. >>> >>> Jeff Salzman >>> >>> On Mon, Sep 16, 2024 at 11:36 PM Jeffrey Brace via vcf-midatlantic < >>> vcf-midatlantic@lists.vcfed.org> wrote: >>> >>>> There is someone looking to make 8" disks from images that he has. >> He >>>> recently acquired a fully functional IBM 5110-3 (or 5120) with dual >>> 8-inch >>>> disk drives. He found the image files to make 6 disks with various >>>> applications for this computer. >>>> >>>> Is there someone that can make the disk images for him and bring >> to the >>>> repair workshop? >>>> >>>> Thanks! >>>> >>>> Jeff Brace >>>> VCF National Board Member Chairman & Vice President >>>> Vintage Computer Festival East Showrunner >>>> VCF Mid-Atlantic Event Manager >>>> Vintage Computer Federation is a 501c3 charity >>>> https://vcfed.org/ <http://www.vcfed.org/> >>>> jeffrey@vcfed.org >>>> >>> >> >
-- Douglas Crawford VCF Mid-Atlantic Museum Mgr InfoAge Science & History Museums 2201 Marconi Road Wall, NJ 07719
-- Bart Hirst "This signature will now be eaten up and spit out by Velociraptors."
participants (7)
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Bart Hirst -
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Douglas Crawford -
Gregg Levine -
Jeff S -
Jeffrey Brace -
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