Hello Everybody!
I hope you're enjoying your summer. I have added more items to my online
Virtual Warehouse, as follows:
Atari XF551 external 5.25" floppy disk drive
Atari 410 Program Recorder
Atari 410-P Program Recorder
Data Pacific TR-1 Translator One
Blue Chip BCD/5.25 floppy drive
No, no, no! Do not use isopropanol to clean floppies--you'll wind up
On Wed, 11 Jul 2018, Steve Malikoff via cctalk wrote:
Well, I suggested IPA (to Chuck's horror) so decided to put my money where my
mouth is and try it myself.
Using a 38-year old 8" IBM Diskette 1 (128-bit sectors) that I
Chuck reckoned
> 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 water and perhaps a couple of drops of a wetting
Got it:
ftp://filedump.glitchwrks.com/manuals/s100/national_multiplex/Computer_Aid_2SIO-R.pdf
Thanks,
Jonathan
/me bows
"National Multiplex" is the brand! Thanks Glitch!
I've got the manual for this one -- I've got one myself. I'll get it
scanned and uploaded.
Thanks,
Jonathan
On Tue, Jul 10, 2018 at 10:20 PM, Richard Cini via cctalk <
cctalk@classiccmp.org> wrote:
The two
I've got the manual for this one -- I've got one myself. I'll get it
scanned and uploaded.
Thanks,
Jonathan
On Tue, Jul 10, 2018 at 10:20 PM, Richard Cini via cctalk <
cctalk@classiccmp.org> wrote:
>
>
>
>
>
>
>
> The two connectors at the top remind me of the MITS 2SIO board.
> Chip on
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 already ). I'm not saying it would
The two connectors at the top remind me of the MITS 2SIO board. Chip on
the left with the label seems odd — looks like an EPROM. Not sure why they’d
use a UART (40-pin chip) and an ACIA, but it’s an interesting two-port combo
board.
Get
I'm thinking one serial and one cassette. The 8251 for the cassette.
I can't make out all the chips at the pins? The board was hand laid out. Is
there nothing on the bottom but traces?
Dwight
From: cctalk on behalf of Ethan via cctalk
Sent: Tuesday, July
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 water and perhaps a couple of drops of a wetting agent
(Kodak Photo-flo
Trying to identify the S100 serial board in my Imsai 8080.
https://imgur.com/eZyOVT5
I assume it was a kit. There are wires from behind one of the ICs that go
to DB25 on the rear, along with other DB25s with a few pins (maybe
cassette input.)
Any help appreciated.
--
: Ethan O'Toole
Steve, Adrian,
I am pretty certain that alcohol will break down the binders and
remove the oxide. Since the bad disc was run through the drive the
head/heads should be cleaned before any more read or write attempts are
made otherwise more discs will be damaged.
Thanks,
rich!
On
Adrian said:
> Tonight I got my imaging PC to successfully read some of the 8” disks from my
> CPT8500 word processor using one of its own Tandon TM848-01 drives, sadly it
> seems the boot disk is toast but I’ve been able to dump some of the data
> disks as well as the Utilities. Since I have a
Hi folks,
Tonight I got my imaging PC to successfully read some of the 8” disks from my
CPT8500 word processor using one of its own Tandon TM848-01 drives, sadly it
seems the boot disk is toast but I’ve been able to dump some of the data disks
as well as the Utilities. Since I have a box of
On Tue, Jul 10, 2018 at 1:38 PM, Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
> > From: Jerry Weiss
> > In addition to above, there is a bypass cache bit in the PDR (section
> > 1.5.6.2) for finer control.
>
> Yes, I only found that out last night (or maybe I saw it on a
On 10/07/18 11:01, Noel Chiappa via cctalk wrote:
I suppose only someone who worked on the DCJ11 would know; but I have no idea
how to track down such a person.
Not sure that I know such a person but you might try hunting for the
Semiconductor Databook Volume 1 1987.
It has some basic
> From: Jerry Weiss
> See http://simh.trailing-edge.com/semi/j11.html for information on the
> design of the J11.
Thanks for that pointer; I don't think I've ever seen that - quite
interesting.
Alas, it didn't have the cache info - but now that I've though about it
overnight, I'm
I just called, looking for a cable. Mike said they were selling the
building and the plotter side of the business, but it sounded like the
HP side might be coming back in some shape or form.
--
Robert
If this is them, they are apparently located in Austin;
https://www.360tech.com
On Tue, Jul 10, 2018 at 12:57 PM Glen Slick via cctalk <
cctalk@classiccmp.org> wrote:
> On Tue, Jul 10, 2018 at 9:15 AM, Al Kossow via cctalk
> wrote:
> > 360 Technologies is (was) and old HP reseller.
> >
> > I
On Tue, Jul 10, 2018 at 9:15 AM, Al Kossow via cctalk
wrote:
> 360 Technologies is (was) and old HP reseller.
>
> I just tried buying a 9145 from them, and didn't hear anything back.
> Called them, and they are in the middle of selling off what they haven't
> scrapped.
> Mike is going to let me
360 Technologies is (was) and old HP reseller.
I just tried buying a 9145 from them, and didn't hear anything back.
Called them, and they are in the middle of selling off what they haven't
scrapped.
Mike is going to let me know more of what will be available and by whom next
week.
On 7/10/18 5:01 AM, Noel Chiappa via cctalk wrote:
So, if one looks up the Cache Control Register in, say, the KDJ11-A
(EK-KDJ1A-UG-002), one sees (in section 1.6.2.1) that there are _three_ ways
to disable the cache: bits 2, 3 ('force miss'), and 9 ('bypass cache').
Looking at the DCJ11 manual
22 matches
Mail list logo
