Fred asked
> What concentration of IPA were you using?
99% Laboratory grade. Not very pleasant to have on the skin, it dries it out
shockingly.
> There might be a difference in results between 70% and 91%
>
> There might also even be a difference in the oxide formulation between
> brands. (If C
Just my experience, I once did a trial where I took two identical 5,25
inch disks of the same batch from the same manufacturer. These were clean
disks which both formatted and verified just fine, but I wanted to see if
IPA did indeed damage the disk.
One I swabbed one with 75% IPA, the other wit
On Wed, 11 Jul 2018, dwight wrote:
I've had the goo from the adhesive of 5.25 inch 360k disk come through
the nice liner and make gobs on the disk. I tried several thing but
found that isopropanol worked without removing any of the magnetic
material ( maybe s tiny amount that was likely loose a
> On 11 Jul 2018, at 09:33, Terry Stewart via cctalk
> wrote:
>
> Just my experience, I once did a trial where I took two identical 5,25
> inch disks of the same batch from the same manufacturer. These were clean
> disks which both formatted and verified just fine, but I wanted to see if
> I
> On 11 Jul 2018, at 03:15, Chuck Guzis via cctalk
> wrote:
>
> No, no, no! Do not use isopropanol to clean floppies--you'll wind up
> with a soft oxide coating and a brown rag. Were these mine, I'd first
> remove them from their jackets and then bake them and then clean them
> with distilled
On 7/11/18 2:21 AM, Christian Corti via cctalk wrote:
> I use Screen 99 for cleaning floppies
MSDS
https://store.comet.bg/download-file.php?id=16956
first ingredient listed; isopropyl alcohol
On 07/11/2018 02:53 AM, Adrian Graham via cctalk wrote:
> What temperature oven?
58C +/- 0.5C
--Chuck
On 7/11/18 8:20 AM, Al Kossow via cctalk wrote:
>
>
> On 7/11/18 2:21 AM, Christian Corti via cctalk wrote:
>
>> I use Screen 99 for cleaning floppies
>
> MSDS
>
> https://store.comet.bg/download-file.php?id=16956
>
> first ingredient listed; isopropyl alcohol
>
>
Since I haven't menti
Be wary though, domestic ovens apparently fluctuate wildly. I did have success
with some TK50s in our fan oven set at 40C
Sent from my Windows 10 phone
From: Chuck Guzis via cctalk
Sent: 11 July 2018 16:31
To: Adrian Graham via cctalk
Subject: Re: 8 inch floppies, decaying
On 07/11/2018 02:53 A
On 7/11/18 8:57 AM, Rob Jarratt via cctalk wrote:
> Be wary though, domestic ovens apparently fluctuate wildly.
Use a food dehydrator
this is the unit I use for QIC tapes (weston 10 tray stainless steel dehydrator
model 74-1001-2)
https://www.ebay.com/itm//113143490361
but I do them a coupl
Are there any HP resellers left now that have
their own inventory and don't speculatively list parts that they don't
have or never had?
Sure! The problem is that most of them don't know that collectors still want
old stuff. Continental Computers in Calif has old DEC, SUN, and old and new HP
stuf
On Wed, 11 Jul 2018 at 18:58, Electronics Plus via cctalk
wrote:
>
> If there are not too many requests, you can send me PN, and I can see who is
> ACTUALLY listing them, not just advertising.
Well, I'm still looking for an IBM PC-AT Model F keyboard. :-)
US layout would be a challenge but not
I don't recall the concentration I used. I would recommend not using it for
most conditions. I recall that I'd tried various other cleaning methods. I
recall using water, water/detergent and may have even tried windex(?). None of
the other things would touch it. The stuff on the surfaces was the
I forgot one
Butter. Also needs detergent cleaning afterwards.
Dwight
From: cctalk on behalf of dwight via cctalk
Sent: Wednesday, July 11, 2018 10:29:41 AM
To: Al Kossow; General Discussion: On-Topic and Off-Topic Posts
Subject: Re: 8 inch floppies, decay
On Wed, 11 Jul 2018, dwight via cctalk wrote:
Next is the smooth orange oil hand cleaner. ( not the stuff with pumas
). Really cleans things great and good for killing ants. Again, rinse
maybe it might need a little detergent and then rinse.
Don't use pumice to clean off the pumas. (they won'
Hi Al
I have a line on a CD and may be find some documents to go with it. A friend
has this and I hope to get a copy next week on Tues or Wed. Are you going to be
at the Museum next week. I don't know where you office is on the East bay side.
It might be closer.
Dwight
__
Anyone know where the Step/Direction version of the FDD interface
originated.
So far as near as I can tell the earliest FDDs (IBM 23FD Minnow and Memorex
650/651) used Step In/Step Out. The IBM 33FD Igar used direct control of the
motor.
The earliest Step/Direction FDD I can find is the Shugart 8
On 07/11/2018 11:12 AM, Tom Gardner via cctalk wrote:
> Anyone know where the Step/Direction version of the FDD interface
> originated.
>
> So far as near as I can tell the earliest FDDs (IBM 23FD Minnow and Memorex
> 650/651) used Step In/Step Out. The IBM 33FD Igar used direct control of the
> m
Hello,
I sent you an email about the Votrax system.
Thanks
Andrea
https://www.elecshopper.com/osborne-1-keyboard.html
I have no way to test it.
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
830-370-3239 cell
sa...@elecplus.com
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/anti
https://www.elecshopper.com/tandy-trs-80-model-2000-keyboard.html
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
830-370-3239 cell
sa...@elecplus.com
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
that would be great. I've not been able to get Jason's images to boot
I also got a Sparcstation 5 running Solaris 2.6 and have had no luck getting it
to recognize the HAL boot drives.
Their is something odd about the drives, I've only been able to image one of
the boot drives on a Linux machine
I'm the victim of the spell checker. Thanks for the fix.
Dwight
From: cctalk on behalf of Fred Cisin via cctalk
Sent: Wednesday, July 11, 2018 11:05:43 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: 8 inch floppies, decaying
On Wed, 11 J
https://www.elecshopper.com/model-m-keyboards/?___store=rwd
I know there are no products under some categories, and no stock under
others, but does this help to make it easier to find things? Click on the
links to see the products.
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrvil
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