Re: [M100] DVI replacement floppy drive
you can get drive solutions pretty readily that do just that, so 2 3.5 inch floppy drives can fit mechanically into a single 5.25 drive bay. Slim server floppies are like that. I used those to mount 2 3.5 floppies in a dead TPDD case for use with Color computer. It turned out pretty well! On Tue, Jul 7, 2020 at 6:23 PM Mike Stein wrote: > Just another thought: > > If you were up to making some custom cables and mounting brackets one > possible solution to your dilemma might be to squeeze two 1/4 height 3.5" > floppy drives into a single 'normal' 3.5" half height bracket, freeing the > other bay for the 5 1/4" drive, with a switch to select 3.5 or 5.25. > > Might just try that myself... ;-) > > m > > - Original Message - > From: "Greg Swallow" > To: "Mike Stein" > Sent: Tuesday, July 07, 2020 8:33 AM > Subject: Re: [M100] DVI replacement floppy drive > > > > They work, but not as 1.44mb drives. Not even 720k or double-sided. That > would require hardware changes/additions. > > > > Since later drives support formatting to former technology, I thought it > would be worth a try. I made sure the drives had jumper blocks for drive > select. My DVI came with the standard 5.25" drive zero and M100 boot > diskette. The first 3.5" went in as drive 1. Formatting worked fine to 180k > on 3.5 diskettes. So, installed another 3.5 as drive zero. Booted from the > 5.25" to 3.5" Backup System diskette and we were in business. Also have a > CCR-81 on the DVI Model 100 and connected it to a desktop/TPDD (mComm). > Only problem would be moving software from 5.25" to 3.5" now. I would have > to open up the DVI and swap a drive for the task. > > > > God Bless, > > > > GregS <>< > > > > Jul 7, 2020 4:32:30 AM Mike Stein : > > > >> ...or maybe even: > >> > >> [cid:36B70691E5714CCE9CDEA74985899B30@310e2] > >> > >>> - Original Message - > >>> > >>> From: James Zeun[james.z...@gmail.com] > >>> > >>> To: M100 Mailing List[m...@bitchin100.com] > >>> > >>> Sent: Friday, July 03, 2020 7:31 PM > >>> > >>> Subject: Re: [M100] DVI replacement floppy drive > >>> > >>> Wait, you actually have 3.5" floppy drives working on the DVI? > >>> > >>> Would not have expected that > >>> > >>> On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: > >>> > >>>> James: > >>>> > >>>> I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes > of old 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't > get 1.44mb or double sided, but I have plenty of media. > >>>> > >>>> GregS <>< > >>>> > >>>> Jul 3, 2020 2:53:53 PM james.z...@gmail.com: > >>>> > >>>>> Would a 180kb floppy drive work in the DVI? > >>>>> > >>>>> Sent from my iPad > >>>>> > >>> > > >
Re: [M100] DVI replacement floppy drive
Just another thought: If you were up to making some custom cables and mounting brackets one possible solution to your dilemma might be to squeeze two 1/4 height 3.5" floppy drives into a single 'normal' 3.5" half height bracket, freeing the other bay for the 5 1/4" drive, with a switch to select 3.5 or 5.25. Might just try that myself... ;-) m - Original Message - From: "Greg Swallow" To: "Mike Stein" Sent: Tuesday, July 07, 2020 8:33 AM Subject: Re: [M100] DVI replacement floppy drive > They work, but not as 1.44mb drives. Not even 720k or double-sided. That > would require hardware changes/additions. > > Since later drives support formatting to former technology, I thought it > would be worth a try. I made sure the drives had jumper blocks for drive > select. My DVI came with the standard 5.25" drive zero and M100 boot > diskette. The first 3.5" went in as drive 1. Formatting worked fine to 180k > on 3.5 diskettes. So, installed another 3.5 as drive zero. Booted from the > 5.25" to 3.5" Backup System diskette and we were in business. Also have a > CCR-81 on the DVI Model 100 and connected it to a desktop/TPDD (mComm). Only > problem would be moving software from 5.25" to 3.5" now. I would have to open > up the DVI and swap a drive for the task. > > God Bless, > > GregS <>< > > Jul 7, 2020 4:32:30 AM Mike Stein : > >> ...or maybe even: >> >> [cid:36B70691E5714CCE9CDEA74985899B30@310e2] >> >>> - Original Message - >>> >>> From: James Zeun[james.z...@gmail.com] >>> >>> To: M100 Mailing List[m...@bitchin100.com] >>> >>> Sent: Friday, July 03, 2020 7:31 PM >>> >>> Subject: Re: [M100] DVI replacement floppy drive >>> >>> Wait, you actually have 3.5" floppy drives working on the DVI? >>> >>> Would not have expected that >>> >>> On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: >>> >>>> James: >>>> >>>> I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old >>>> 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get >>>> 1.44mb or double sided, but I have plenty of media. >>>> >>>> GregS <>< >>>> >>>> Jul 3, 2020 2:53:53 PM james.z...@gmail.com: >>>> >>>>> Would a 180kb floppy drive work in the DVI? >>>>> >>>>> Sent from my iPad >>>>> >>> >
Re: [M100] DVI replacement floppy drive
Well, as I said it was meant more as a 'wouldn't this be nice' picture, not one
of an actual fully functional configuration; still, it wouldn't be impossible...
As an OT aside; one of the things on my list is the opposite challenge, namely
to modify the speed of the 3.5" drive from 300rpm to 360, the same as the 5
1/4" HD drive.
In the S100 world and elsewhere many systems used 8" drives, which are becoming
scarce and expensive (as are the diskettes); as it happens both 5 1/4" and 3.5"
HD drives are fully compatible with the 8" formats except for the lower speed
of the 3.5" drives.
Some 3.5" drives have jumpers to change to 360 rpm and many of us do use them
as replacements for 8" drives, but AFAIK none of the dual 3.5/5.25" HD combo
drives have that jumper option.
m
- Original Message -
From: Chris Fezzler
To: m...@bitchin100.com
Sent: Tuesday, July 07, 2020 3:14 PM
Subject: Re: [M100] DVI replacement floppy drive
Nice setup there!
On Tuesday, July 7, 2020, 07:29:28 AM EDT, Mike Stein
wrote:
...or maybe even:
- Original Message -
From: James Zeun
To: M100 Mailing List
Sent: Friday, July 03, 2020 7:31 PM
Subject: Re: [M100] DVI replacement floppy drive
Wait, you actually have 3.5" floppy drives working on the DVI?
Would not have expected that
On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote:
James:
I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of
old 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get
1.44mb or double sided, but I have plenty of media.
GregS <><
Jul 3, 2020 2:53:53 PM james.z...@gmail.com:
> Would a 180kb floppy drive work in the DVI?
>
> Sent from my iPad
>
--
Re: [M100] DVI replacement floppy drive
Yup; should be fine. I don't recall what the DVI came with, it might even have been a Chinon drive. I replaced mine with two matching 'normal' 360K drives way back when; the only issue IIRC when replacing one drive was that the interface connector was on the opposite edge and the cable didn't quite reach across. m - Original Message - From: James Zeun To: M100 Mailing List Sent: Tuesday, July 07, 2020 4:12 PM Subject: Re: [M100] DVI replacement floppy drive The replacement drive I've bought was this https://www.ebay.co.uk/itm/224046494179 My understanding was the stock drive in the DVI where 180k On Tue, 7 Jul 2020, 8:15 pm Chris Fezzler, wrote: Nice setup there! On Tuesday, July 7, 2020, 07:29:28 AM EDT, Mike Stein wrote: ...or maybe even: - Original Message - From: James Zeun To: M100 Mailing List Sent: Friday, July 03, 2020 7:31 PM Subject: Re: [M100] DVI replacement floppy drive Wait, you actually have 3.5" floppy drives working on the DVI? Would not have expected that On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: James: I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get 1.44mb or double sided, but I have plenty of media. GregS <>< Jul 3, 2020 2:53:53 PM james.z...@gmail.com: > Would a 180kb floppy drive work in the DVI? > > Sent from my iPad >
Re: [M100] DVI replacement floppy drive
The replacement drive I've bought was this https://www.ebay.co.uk/itm/224046494179 My understanding was the stock drive in the DVI where 180k On Tue, 7 Jul 2020, 8:15 pm Chris Fezzler, wrote: > Nice setup there! > > On Tuesday, July 7, 2020, 07:29:28 AM EDT, Mike Stein > wrote: > > > ...or maybe even: > > > - Original Message - > *From:* James Zeun > *To:* M100 Mailing List > *Sent:* Friday, July 03, 2020 7:31 PM > *Subject:* Re: [M100] DVI replacement floppy drive > > Wait, you actually have 3.5" floppy drives working on the DVI? > > Would not have expected that > > On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: > > James: > > I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old > 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get > 1.44mb or double sided, but I have plenty of media. > > GregS <>< > > Jul 3, 2020 2:53:53 PM james.z...@gmail.com: > > > Would a 180kb floppy drive work in the DVI? > > > > Sent from my iPad > > > >
Re: [M100] DVI replacement floppy drive
Nice setup there! On Tuesday, July 7, 2020, 07:29:28 AM EDT, Mike Stein wrote: ...or maybe even: - Original Message - From: James Zeun To: M100 Mailing List Sent: Friday, July 03, 2020 7:31 PM Subject: Re: [M100] DVI replacement floppy drive Wait, you actually have 3.5" floppy drives working on the DVI? Would not have expected that On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: James: I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get 1.44mb or double sided, but I have plenty of media. GregS <>< Jul 3, 2020 2:53:53 PM james.z...@gmail.com: > Would a 180kb floppy drive work in the DVI? > > Sent from my iPad >
Re: [M100] DVI replacement floppy drive
Sorry; the 4-drive picture was not meant entirely seriously since no matter what the DVI only provides for two drives; the 5 1/4" drive does indeed normally spin at 360rpm instead of 300 but since we're talking about non-standard formats anyway that shouldn't necessarily matter. Looks cool though ;-) You won't be able to read anything other than 180K 5 1/4"DD format diskettes on other drives; no different than trying to read your 3.5"HD diskettes on another drive. The point in reply to James was that if you don't mind being incompatible with the rest of the world then it doesn't much matter what disk drive/diskettes you use although no matter what you'll still only have 180K per (normally only one) side. To remain compatible you'll need a 5 1/4" 40 track DD drive (usually called 360K) No, without some modifications it would not solve your issue of requiring an external 5 1/4 drive to read DVI-format diskettes in your dual 3.5" system; sorry if I implied that. The main issue would actually be that the 5 1/4"HD drive would have to double-step; drive speed and density might be modifiable. We had a discussion about different drives a few years back which is where I originally posted these pictures, and we actually did try some of the various drive combinations. m - Original Message - From: Gregory McGill To: m...@bitchin100.com Sent: Tuesday, July 07, 2020 11:17 AM Subject: Re: [M100] DVI replacement floppy drive no that is a high density drive without any real configuration abilities.. it is hard wired for d0 d1 internally AND they are at a different spindle speed than a single/double density drive so you wont be able to read disks with it written on other drives and vice versa On Tue, Jul 7, 2020 at 4:29 AM Mike Stein wrote: ...or maybe even: - Original Message - From: James Zeun To: M100 Mailing List Sent: Friday, July 03, 2020 7:31 PM Subject: Re: [M100] DVI replacement floppy drive Wait, you actually have 3.5" floppy drives working on the DVI? Would not have expected that On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: James: I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get 1.44mb or double sided, but I have plenty of media. GregS <>< Jul 3, 2020 2:53:53 PM james.z...@gmail.com: > Would a 180kb floppy drive work in the DVI? > > Sent from my iPad >
Re: [M100] DVI replacement floppy drive
no that is a high density drive without any real configuration abilities.. it is hard wired for d0 d1 internally AND they are at a different spindle speed than a single/double density drive so you wont be able to read disks with it written on other drives and vice versa On Tue, Jul 7, 2020 at 4:29 AM Mike Stein wrote: > ...or maybe even: > > > - Original Message - > *From:* James Zeun > *To:* M100 Mailing List > *Sent:* Friday, July 03, 2020 7:31 PM > *Subject:* Re: [M100] DVI replacement floppy drive > > Wait, you actually have 3.5" floppy drives working on the DVI? > > Would not have expected that > > On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: > >> James: >> >> I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of >> old 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get >> 1.44mb or double sided, but I have plenty of media. >> >> GregS <>< >> >> Jul 3, 2020 2:53:53 PM james.z...@gmail.com: >> >> > Would a 180kb floppy drive work in the DVI? >> > >> > Sent from my iPad >> > >> >
Re: [M100] DVI replacement floppy drive
In general terms as long as a floppy drive can handle the density and has enough tracks it doesn't care about the disk format any more than a cassette player cares about the kind of music; that is mainly determined by the controller, the software and the diskette type (DD vs. HD). Technically, a 1.44MB drive (capable of 80 tracks of 18 sectors) should be able to read and write almost any format. The only useful hardware addition would be a switch to manually select either side of a double-sided drive/diskette, doubling the capacity at the cost of some inconvenience. m - Original Message - From: "Greg Swallow" To: "Mike Stein" Sent: Tuesday, July 07, 2020 8:33 AM Subject: Re: [M100] DVI replacement floppy drive > They work, but not as 1.44mb drives. Not even 720k or double-sided. That > would require hardware changes/additions. > > Since later drives support formatting to former technology, I thought it > would be worth a try. I made sure the drives had jumper blocks for drive > select. My DVI came with the standard 5.25" drive zero and M100 boot > diskette. The first 3.5" went in as drive 1. Formatting worked fine to 180k > on 3.5 diskettes. So, installed another 3.5 as drive zero. Booted from the > 5.25" to 3.5" Backup System diskette and we were in business. Also have a > CCR-81 on the DVI Model 100 and connected it to a desktop/TPDD (mComm). Only > problem would be moving software from 5.25" to 3.5" now. I would have to open > up the DVI and swap a drive for the task. > > God Bless, > > GregS <>< > > Jul 7, 2020 4:32:30 AM Mike Stein : > >> ...or maybe even: >> >> [cid:36B70691E5714CCE9CDEA74985899B30@310e2] >> >>> - Original Message - >>> >>> From: James Zeun[james.z...@gmail.com] >>> >>> To: M100 Mailing List[m...@bitchin100.com] >>> >>> Sent: Friday, July 03, 2020 7:31 PM >>> >>> Subject: Re: [M100] DVI replacement floppy drive >>> >>> Wait, you actually have 3.5" floppy drives working on the DVI? >>> >>> Would not have expected that >>> >>> On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: >>> >>>> James: >>>> >>>> I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old >>>> 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get >>>> 1.44mb or double sided, but I have plenty of media. >>>> >>>> GregS <>< >>>> >>>> Jul 3, 2020 2:53:53 PM james.z...@gmail.com: >>>> >>>>> Would a 180kb floppy drive work in the DVI? >>>>> >>>>> Sent from my iPad >>>>> >>> >
Re: [M100] DVI replacement floppy drive
They work, but not as 1.44mb drives. Not even 720k or double-sided. That would require hardware changes/additions. Since later drives support formatting to former technology, I thought it would be worth a try. I made sure the drives had jumper blocks for drive select. My DVI came with the standard 5.25" drive zero and M100 boot diskette. The first 3.5" went in as drive 1. Formatting worked fine to 180k on 3.5 diskettes. So, installed another 3.5 as drive zero. Booted from the 5.25" to 3.5" Backup System diskette and we were in business. Also have a CCR-81 on the DVI Model 100 and connected it to a desktop/TPDD (mComm). Only problem would be moving software from 5.25" to 3.5" now. I would have to open up the DVI and swap a drive for the task. God Bless, GregS <>< Jul 7, 2020 4:32:30 AM Mike Stein : > ...or maybe even: > > [cid:36B70691E5714CCE9CDEA74985899B30@310e2] > >> - Original Message - >> >> From: James Zeun[james.z...@gmail.com] >> >> To: M100 Mailing List[m...@bitchin100.com] >> >> Sent: Friday, July 03, 2020 7:31 PM >> >> Subject: Re: [M100] DVI replacement floppy drive >> >> Wait, you actually have 3.5" floppy drives working on the DVI? >> >> Would not have expected that >> >> On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: >> >>> James: >>> >>> I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old >>> 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get >>> 1.44mb or double sided, but I have plenty of media. >>> >>> GregS <>< >>> >>> Jul 3, 2020 2:53:53 PM james.z...@gmail.com: >>> >>>> Would a 180kb floppy drive work in the DVI? >>>> >>>> Sent from my iPad >>>> >>
Re: [M100] DVI replacement floppy drive
Now I do like that!! I've never seen one of those before! On Tue, 7 Jul 2020, 12:29 pm Mike Stein, wrote: > ...or maybe even: > > > - Original Message - > *From:* James Zeun > *To:* M100 Mailing List > *Sent:* Friday, July 03, 2020 7:31 PM > *Subject:* Re: [M100] DVI replacement floppy drive > > Wait, you actually have 3.5" floppy drives working on the DVI? > > Would not have expected that > > On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: > >> James: >> >> I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of >> old 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get >> 1.44mb or double sided, but I have plenty of media. >> >> GregS <>< >> >> Jul 3, 2020 2:53:53 PM james.z...@gmail.com: >> >> > Would a 180kb floppy drive work in the DVI? >> > >> > Sent from my iPad >> > >> >
Re: [M100] DVI replacement floppy drive
...or maybe even: - Original Message - From: James Zeun To: M100 Mailing List Sent: Friday, July 03, 2020 7:31 PM Subject: Re: [M100] DVI replacement floppy drive Wait, you actually have 3.5" floppy drives working on the DVI? Would not have expected that On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: James: I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get 1.44mb or double sided, but I have plenty of media. GregS <>< Jul 3, 2020 2:53:53 PM james.z...@gmail.com: > Would a 180kb floppy drive work in the DVI? > > Sent from my iPad >
Re: [M100] DVI replacement floppy drive
Why not? - Original Message - From: James Zeun To: M100 Mailing List Sent: Friday, July 03, 2020 7:31 PM Subject: Re: [M100] DVI replacement floppy drive Wait, you actually have 3.5" floppy drives working on the DVI? Would not have expected that On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: James: I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get 1.44mb or double sided, but I have plenty of media. GregS <>< Jul 3, 2020 2:53:53 PM james.z...@gmail.com: > Would a 180kb floppy drive work in the DVI? > > Sent from my iPad >
Re: [M100] DVI replacement floppy drive
Wait, you actually have 3.5" floppy drives working on the DVI? Would not have expected that On Fri, 3 Jul 2020, 11:43 pm Greg Swallow, wrote: > James: > > I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old > 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get > 1.44mb or double sided, but I have plenty of media. > > GregS <>< > > Jul 3, 2020 2:53:53 PM james.z...@gmail.com: > > > Would a 180kb floppy drive work in the DVI? > > > > Sent from my iPad > > >
Re: [M100] DVI replacement floppy drive
James: I'd try it. Seems the DVI is pretty forgiving. I have boxes & boxes of old 3.5in diskettes. So, installed two 1.44mb drives in my DVI. I don't get 1.44mb or double sided, but I have plenty of media. GregS <>< Jul 3, 2020 2:53:53 PM james.z...@gmail.com: > Would a 180kb floppy drive work in the DVI? > > Sent from my iPad >
