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| Re: Compatible internal floppy drives for Mac Classic? [message #378405 is a reply to message #378404] |
Mon, 17 December 2018 09:17   |
Jonathan Morton
Messages: 188
Registered: January 2013
Karma: 0
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Senior Member |
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> On 17 Dec, 2018, at 4:08 pm, Christian Wacker <pizzaboy192@gmail.com> wrote:
>
> Is there a list of compatible replacement units I can purchase and install into this machine?
It'll need to be one from another Mac, at minimum. Mac floppy drives have a variable-speed facility for use with 800K disks, and a motorised eject mechanism, which are both absent on PC drives.
The Classic apparently came with a "SuperDrive" which introduced the ability to read 1.44MB "high density" disks. That went along with a SWIM controller on the m/board, which remained more-or-less standard in later Macs until the floppy drive was dropped in the iMac era. I think a drive from one of these later Macs has a good chance of fitting your Classic, but others will have more specific information.
- Jonathan Morton
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| Re: Compatible internal floppy drives for Mac Classic? [message #378406 is a reply to message #378404] |
Mon, 17 December 2018 09:22 |
Jonathan Morton
Messages: 188
Registered: January 2013
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> On 17 Dec, 2018, at 4:08 pm, Christian Wacker <pizzaboy192@gmail.com> wrote:
>
> I would like to replace it so I can use this system again.
Incidentally, the Classic came with System 6.0.3 in ROM. You should be able to boot into it by holding Cmd-Opt-X-O at the chime. From there, you can use the serial ports and a SCSI HDD, in case you can't find a floppy drive for some reason.
- Jonathan Morton
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| Re: Compatible internal floppy drives for Mac Classic? [message #378437 is a reply to message #378404] |
Mon, 17 December 2018 13:22 |
Jerri Kohl
Messages: 10
Registered: October 2018
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Low End Mac, who provide this very list, have an excellent article on this:
http://lowendmac.com/2007/interchangeabilty-and-compatibilit y-of-apple-1-4-mb-floppy-superdrives/
which is a reworking of the info from this page:
http://siber-sonic.com/mac/superfloppy.html
which has been updated 2 years more recently
On Mon, Dec 17, 2018 at 9:08 AM Christian Wacker <pizzaboy192@gmail.com>
wrote:
> It appears my Mac Classic internal floppy drive has perished (don't blame
> it from it sitting outside for years). I would like to replace it so I can
> use this system again.
> Is there a list of compatible replacement units I can purchase and install
> into this machine? There's so many to choose from on ebay and I would like
> to get one that is a drop-in replacement.
> Thanks!
>
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| Re: Compatible internal floppy drives for Mac Classic? [message #378438 is a reply to message #378404] |
Mon, 17 December 2018 13:22 |
NODEraser
Messages: 94
Registered: June 2013
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I should still have some new-old-stock floppy drives, I'll have to
check and get back to you.
On Mon, Dec 17, 2018 at 6:08 AM Christian Wacker <pizzaboy192@gmail.com> wrote:
>
> It appears my Mac Classic internal floppy drive has perished (don't blame it from it sitting outside for years). I would like to replace it so I can use this system again.
> Is there a list of compatible replacement units I can purchase and install into this machine? There's so many to choose from on ebay and I would like to get one that is a drop-in replacement.
> Thanks!
>
> --
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[Greg Bennett]
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| Re: Compatible internal floppy drives for Mac Classic? [message #378439 is a reply to message #378437] |
Mon, 17 December 2018 13:34 |
Jonathan Morton
Messages: 188
Registered: January 2013
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Senior Member |
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> On 17 Dec, 2018, at 8:22 pm, Jerri Kohl <jerrikohl@gmail.com> wrote:
>
> Low End Mac, who provide this very list, have an excellent article on this:
> http://lowendmac.com/2007/interchangeabilty-and-compatibilit y-of-apple-1-4-mb-floppy-superdrives/
> which is a reworking of the info from this page:
> http://siber-sonic.com/mac/superfloppy.html
> which has been updated 2 years more recently
Based on that, it appears you should try to get a drive from a Mac predating the Quadra/Centris lines, using the auto-inject mechanism. That should ensure the interface with the case front is correct.
Theoretically, any Mac drive should be *operable* with the Classic, but the newer manual-inject ones might require leaving the case open due to mechanical misalignment, and that's a bad idea when you've got a built-in CRT to contend with.
- Jonathan Morton
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| Re: Compatible internal floppy drives for Mac Classic? [message #378615 is a reply to message #378404] |
Wed, 19 December 2018 16:32 |
Jeff Walther
Messages: 134
Registered: August 2012
Karma: 0
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Senior Member |
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On Monday, December 17, 2018 at 8:08:50 AM UTC-6, Pizzaboy192 wrote:
>
> It appears my Mac Classic internal floppy drive has perished (don't blame
> it from it sitting outside for years). I would like to replace it so I can
> use this system again.
>
>
Often the mechanism on these old drives lock up because the lubricant turns
to varnish. If you cannot insert a disk because the mechanism does not
accept it (things don't go sprung in the right places) try removing the
drive and clean all the sliding metal parts on the two sides with alcohol
until the old residue is removed. Stay away from teh head mechanism
inside the drive. People have bent things messing with those. Oh, you
can touch them if you know what you're doing, just don't go after them
wihtout finding some good explicit instructions first.
Second, if you try to install a manual-inject drive instead of the older
auto-inject drive, I'm pretty sure you need to change the floppy cable,
otherwise the drive will go into a mode where it constantly ejects. I may
be misremembering, but there was an issue wtih floppy cables with red
stripes and floppy cables with yellow stripes.
Jeff Walther
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| Re: Compatible internal floppy drives for Mac Classic? [message #378674 is a reply to message #378615] |
Thu, 20 December 2018 08:30 |
Christian Wacker
Messages: 24
Registered: April 2018
Karma: 0
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Junior Member |
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Thanks for those tips. It does accept a floppy and attempts to read it, but
all attempts to do anything to the disc fail. I haven't had a chance to
floppy-ectomy the unit yet to inspect it up close but we'll see what my
lunch break at work looks like today. I've verified the Disc is OK in the
only Windows box I have with a floppy and it seems to successfully read and
write those discs (Although even the Windows box struggled with the only
floppy I could initially find. Maybe I should try a new in box disc)
I'm upset at past me for scrapping a pile of old computers including a few
LCII units. I know I probably still have a few floppy drives and HDDs
around somewhere, but it's been years since I had any beige mac units so my
memory of where everything went is a bit foggy.
On Wed, Dec 19, 2018 at 3:32 PM Jeff Walther <trag@prismnet.com> wrote:
>
>
> On Monday, December 17, 2018 at 8:08:50 AM UTC-6, Pizzaboy192 wrote:
>>
>> It appears my Mac Classic internal floppy drive has perished (don't blame
>> it from it sitting outside for years). I would like to replace it so I can
>> use this system again.
>>
>>
> Often the mechanism on these old drives lock up because the lubricant
> turns to varnish. If you cannot insert a disk because the mechanism does
> not accept it (things don't go sprung in the right places) try removing the
> drive and clean all the sliding metal parts on the two sides with alcohol
> until the old residue is removed. Stay away from teh head mechanism
> inside the drive. People have bent things messing with those. Oh, you
> can touch them if you know what you're doing, just don't go after them
> wihtout finding some good explicit instructions first.
>
> Second, if you try to install a manual-inject drive instead of the older
> auto-inject drive, I'm pretty sure you need to change the floppy cable,
> otherwise the drive will go into a mode where it constantly ejects. I may
> be misremembering, but there was an issue wtih floppy cables with red
> stripes and floppy cables with yellow stripes.
>
> Jeff Walther
>
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| Re: Compatible internal floppy drives for Mac Classic? [message #378737 is a reply to message #378674] |
Thu, 20 December 2018 17:36 |
NODEraser
Messages: 94
Registered: June 2013
Karma: 0
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Member |
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On Thu, Dec 20, 2018 at 5:31 AM Christian Wacker <pizzaboy192@gmail.com> wrote:
>
> Thanks for those tips. It does accept a floppy and attempts to read it, but all attempts to do anything to the disc fail. I haven't had a chance to floppy-ectomy the unit yet to inspect it up close but we'll see what my lunch break at work looks like today. I've verified the Disc is OK in the only Windows box I have with a floppy and it seems to successfully read and write those discs (Although even the Windows box struggled with the only floppy I could initially find. Maybe I should try a new in box disc)
>
Does formatting the disk fail? If you don't have the correct System
software version and/or the extension, the Mac won't be able to read
PC-formatted disks. Also, Macs in general were pickier about floppy
disks; a disk that works just fine on PC won't necessarily work on a
Mac, or it could fail soon thereafter on the PC after the Mac says
it's bad.
--
[Greg Bennett]
-Independent Carpenter, Electrician & Lighting Designer
-Purveyor of Classic Apple & Macintosh Gear
http://www.hsiprodsvcs.com/
http://www.macshack.us/
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| Re: Compatible internal floppy drives for Mac Classic? [message #378785 is a reply to message #378737] |
Fri, 21 December 2018 08:39 |
Christian Wacker
Messages: 24
Registered: April 2018
Karma: 0
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Junior Member |
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It failed on verification. Unfortunately this project is on hold until
later since my board has finally suffered the checkerboard boot pattern.
I'll need to do a recap on it before I investigate the floppy drive further.
On Thu, Dec 20, 2018 at 4:36 PM NODEraser <noderaser@gmail.com> wrote:
> On Thu, Dec 20, 2018 at 5:31 AM Christian Wacker <pizzaboy192@gmail.com>
> wrote:
>>
>> Thanks for those tips. It does accept a floppy and attempts to read it,
> but all attempts to do anything to the disc fail. I haven't had a chance to
> floppy-ectomy the unit yet to inspect it up close but we'll see what my
> lunch break at work looks like today. I've verified the Disc is OK in the
> only Windows box I have with a floppy and it seems to successfully read and
> write those discs (Although even the Windows box struggled with the only
> floppy I could initially find. Maybe I should try a new in box disc)
>>
>
> Does formatting the disk fail? If you don't have the correct System
> software version and/or the extension, the Mac won't be able to read
> PC-formatted disks. Also, Macs in general were pickier about floppy
> disks; a disk that works just fine on PC won't necessarily work on a
> Mac, or it could fail soon thereafter on the PC after the Mac says
> it's bad.
>
> --
> [Greg Bennett]
> -Independent Carpenter, Electrician & Lighting Designer
> -Purveyor of Classic Apple & Macintosh Gear
> http://www.hsiprodsvcs.com/
> http://www.macshack.us/
>
> --
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| Re: Compatible internal floppy drives for Mac Classic? [message #378978 is a reply to message #378785] |
Mon, 24 December 2018 12:50 |
Christian Wacker
Messages: 24
Registered: April 2018
Karma: 0
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Junior Member |
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All,
I got my Mac working again by refurbishing the Analog board after checking
voltages and discovering I was running a whopping 10V on the 12V rail.
Everything is running in spec, Floppy drive auto inject\eject works as
expected but it cannot read or format disks. It fails format on Verifying.
Is there a proper way to clean these drives or would replacement still be
my best bet?
On Fri, Dec 21, 2018 at 7:39 AM Christian Wacker <pizzaboy192@gmail.com>
wrote:
> It failed on verification. Unfortunately this project is on hold until
> later since my board has finally suffered the checkerboard boot pattern.
> I'll need to do a recap on it before I investigate the floppy drive further.
>
> On Thu, Dec 20, 2018 at 4:36 PM NODEraser <noderaser@gmail.com> wrote:
>
>> On Thu, Dec 20, 2018 at 5:31 AM Christian Wacker <pizzaboy192@gmail.com>
>> wrote:
>>>
>>> Thanks for those tips. It does accept a floppy and attempts to read it,
>> but all attempts to do anything to the disc fail. I haven't had a chance to
>> floppy-ectomy the unit yet to inspect it up close but we'll see what my
>> lunch break at work looks like today. I've verified the Disc is OK in the
>> only Windows box I have with a floppy and it seems to successfully read and
>> write those discs (Although even the Windows box struggled with the only
>> floppy I could initially find. Maybe I should try a new in box disc)
>>>
>>
>> Does formatting the disk fail? If you don't have the correct System
>> software version and/or the extension, the Mac won't be able to read
>> PC-formatted disks. Also, Macs in general were pickier about floppy
>> disks; a disk that works just fine on PC won't necessarily work on a
>> Mac, or it could fail soon thereafter on the PC after the Mac says
>> it's bad.
>>
>> --
>> [Greg Bennett]
>> -Independent Carpenter, Electrician & Lighting Designer
>> -Purveyor of Classic Apple & Macintosh Gear
>> http://www.hsiprodsvcs.com/
>> http://www.macshack.us/
>>
>> --
>> --
>> -----
>> You received this message because you are a member of the Vintage Macs
>> group.
>> The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our
>> netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml
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>>
>
>
> --
> I blog, therefore I am... I think. http://pizzaboy192.com/blog/
>
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