In a message dated 8/8/2017 9:35:14 P.M. US Mountain Standard Time,
el...@pico-systems.com writes:
On 08/08/2017 10:51 PM, Ed via cctalk wrote:
> PDP-8s that was EBAY.. what is the other rack? Thought TTY inf. in main
> box?
>
>
http://www.ebay.com/itm/DEC-PDP-8-S-Minicomputer-Comple
On 8/8/2017 9:35 PM, Jon Elson via cctalk wrote:
8 **S** Arrgh! The worst computer DEC ever made! It was a real
speed demon, when compared to computers with vacuum tubes and drum
memory!
Jon
The EE department had an 8S which I wish I could have gotten my hands on
(UMR). I had both it
On Tue, 8 Aug 2017, Adrian Graham wrote:
of the whole ftp site but it?s 220gb and I?m not sure my little 150mb/s
web connection will download that in less than a month :)
You should think about the proper usage of units...
If "gb" is gigabytes, then "mb" is megabytes. With a 150 megabytes/s li
On Aug 9, 2017 1:34 AM, "Chuck Guzis via cctalk"
wrote:
>
> Quick question, Rich--what kind of media are you using to test by
> formatting to 1.2MB?
>
> If they're SS media (as indicated by the position of the index
> aperture), your drive will probably barf if you try to access the disk
> as doub
I lost my cctalk/tech so I read online.
I saved some documents here
http://oldcomputers.dyndns.org/public/pub/rechner/honeywell/manuals/index.html
--
Best Regards
Mit freundlichen Grüssen
Fritz
Will 310 ROMs work in a 300? I believe 310, 400, 600, and 1000 ROMs are
posted in Seth's emulator project's git hub. If not, I can resend them.
-Alan
On 2017-08-08 20:48, r.stricklin via cctalk wrote:
> Folks;
>
> I keep meaning to ask... a couple months ago, there was an eBay auction for
Hi Lis
It looks like RX8 SEL is not asserted due to the device address not
being set up on the DIP switches.
Anybody know what they should be set to in terms of switch number,
depressed/not depressed on side with numbers.
Rod
--
Wanted one pdp-8/i rocker switch leaver to copy.
On 08/09/2017 01:41 AM, william degnan wrote:
> How about booting into dos and just formatting a disk that way?
Go back and read what I wrote, Bill. If single-sided media is being
used, DOS formatting will fail as there is no single-sided high-density
format available.
Of course, if double-s
On Wed, Aug 9, 2017 at 8:00 AM, Rod Smallwood via cctalk <
cctalk@classiccmp.org> wrote:
> Hi Lis
>
> It looks like RX8 SEL is not asserted due to the device address not being
> set up on the DIP switches.
>
> Anybody know what they should be set to in terms of switch number,
> depressed/not depre
On 8/9/17 8:32 AM, Josh Dersch via cctalk wrote:
> On Wed, Aug 9, 2017 at 8:00 AM, Rod Smallwood via cctalk <
> cctalk@classiccmp.org> wrote:
>
>> Hi Lis
>>
>> It looks like RX8 SEL is not asserted due to the device address not being
>> set up on the DIP switches.
>>
>> Anybody know what they sh
On Wed, Aug 9, 2017 at 9:16 AM, Al Kossow via cctalk
wrote:
>
>
> On 8/9/17 8:32 AM, Josh Dersch via cctalk wrote:
> > On Wed, Aug 9, 2017 at 8:00 AM, Rod Smallwood via cctalk <
> > cctalk@classiccmp.org> wrote:
> >
> >> Hi Lis
> >>
> >> It looks like RX8 SEL is not asserted due to the device add
On 8/9/17 9:23 AM, Josh Dersch wrote:
> The manual I linked contains configuration details for the RX01, RX8E and
> RX11. See page 2-10.
yea, just pulled the manual and realized that, sorry.
it is device code 75
http://homepage.divms.uiowa.edu/~jones/pdp8/man/rx01.html
On 8/9/17 9:24 AM, Al Kossow via cctalk wrote:
>
>
> On 8/9/17 9:23 AM, Josh Dersch wrote:
>
>> The manual I linked contains configuration details for the RX01, RX8E and
>> RX11. See page 2-10.
>
>
> yea, just
It's funny -- I didn't see the original reply from Bill to this message.
I am aware of the track differences and I thought Dos would format it but just
slam the head for the last three tracks. No such luck. It actually complains
about the disk from the beginning.
The Qume 242 is a DSDD drive
NOTE - I was able to make a bootable 8" DOS 6.22 disk even though it
slammed the last three tracks, on my imaging computer. The computer
thought it was writing to a 1.2M 5 1/4 disk.
BUT you're saying a quad density SS disk. I never tried that and if you
say it does not work then I can't dispute
Bill -- the drive and disks are double-sided double density. Are you saying
that's quad density?
I may try a different host setup again. I have five different computers that
passed the testfdc program with varying levels of success, although none with
single-density.
Rich
Sent from Verizon/A
On 08/09/2017 09:52 AM, Richard Cini via cctalk wrote:
> It's funny -- I didn't see the original reply from Bill to this
> message.
>
> I am aware of the track differences and I thought Dos would format
> it but just slam the head for the last three tracks. No such luck. It
> actually complains a
See below. Hopefully inline works. I'm not shouting, just using caps.
Rich
Sent from Verizon/AOL Mobile Mail
On Wednesday, August 9, 2017, Chuck Guzis via cctalk
wrote:
On 08/09/2017 09:52 AM, Richard Cini via cctalk wrote:
> It's funny -- I didn't see the original reply from Bill to this
>
On 09/08/2017 17:31, Al Kossow via cctalk wrote:
it is device code 75
http://homepage.divms.uiowa.edu/~jones/pdp8/man/rx01.html
On 8/9/17 9:24 AM, Al Kossow via cctalk wrote:
On 8/9/17 9:23 AM, Josh Dersch wrote:
The manual I linked contains configuration details for the RX01, RX8E and
On 08/09/2017 10:57 AM, Richard Cini via cctalk wrote:
> "DON'T ASSUME..." AS THEY SAY ON TV. I'M OK WITH THE ADDITIONAL CLARITY.
> SINCE YOU HAVE A WORKING 242, WOULD YOU MIND CONFIRMING THE JUMPER SETTINGS
> FOR ME? JUST TRYING TO ELIMINATE AS MANY POTENTIAL ERROR POINTS.
I had a look and a
Thanks Chuck. The Gazelle uses the Tarbell DD controller which uses a 1793
which I believe is 3742 and s/34 compatible.
Rich
Sent from Verizon/AOL Mobile Mail
On Wednesday, August 9, 2017, Chuck Guzis via cctalk
wrote:
On 08/09/2017 10:57 AM, Richard Cini via cctalk wrote:
> "DON'T ASSUME.
The structure used on most diskette tracks is based on an IBM design
(3740, etc.), and was referred to as "IBM format". BUT, the general
public think that "IBM" means the machines that followed the 5150, so "IBM
format" is oft misconstrued to mean PC. To avoid ambiguity, I sometimes
call it
Interesting reading here under disk formats:
https://en.wikipedia.org/wiki/86-DOS
Sounds like there were two Tarbell controllers, single and double density but
both single-sided ?
Also sounds like the FAT12 disk formats were not quite MS-DOS compatible...
m
- Original Message -
From:
If you can use IMD to format both FM and MFM at 500Kbps on your 242--and
"Analyze" reads the format okay, your SCP disks aren't probably standard
IBM 3740 or System/3 type diskettes. They could be in a proprietary
recording format, such as Intel MMFM or Futuredata GCR.
On Wed, 9 Aug 2017, Richar
On Wed, 9 Aug 2017, Mike Stein via cctalk wrote:
Interesting reading here under disk formats:
https://en.wikipedia.org/wiki/86-DOS
Sounds like there were two Tarbell controllers, single and double
density but both single-sided ?
Also sounds like the FAT12 disk formats were not quite MS-DOS comp
On 08/09/2017 12:41 PM, Fred Cisin via cctalk wrote:
> My naming convention is flawed. I think that at one point Western
> Digital made an "NEC compatible" controller, that isn't what I call
> "wd-style"
Yup, the WD37C65. Anyone need any? I've got a tubeful that I'm never
going to use. Used
There's a way to make the disk more compatible by changing the media ID byte,
but I don't even need that right now.
I'd have to pull the manual but I believe the TDD is one or two sided.
Rich
Sent from Verizon/AOL Mobile Mail
On Wednesday, August 9, 2017, Mike Stein wrote:
Interesting read
Thanks Fred. The Adaptec controller I'm using has a NatSemi controller and
passes all IMD tests. I have an SBC floating around with a WD37xx chip so maybe
I'll try that this weekend.
Rich
Sent from Verizon/AOL Mobile Mail
On Wednesday, August 9, 2017, Fred Cisin via cctalk
wrote:
> If you
I don't have the screen print handy but if you look on Dave Dunfield's site
under Disk/Software he has a controller registry. I'm using the Adaptec
AHA-1522A which uses the National DP8437AV chip.
Rich
Sent from Verizon/AOL Mobile Mail
On Wednesday, August 9, 2017, Chuck Guzis via cctalk
wr
On Wed, 9 Aug 2017, Richard Cini via cctalk wrote:
Thanks Fred. The Adaptec controller I'm using has a NatSemi controller
and passes all IMD tests. I have an SBC floating around with a WD37xx
chip so maybe I'll try that this weekend.
That is SO compatible with the NEC 765 chips that I'm going
On 08/09/2017 01:29 PM, Richard Cini via cctalk wrote:
> I don't have the screen print handy but if you look on Dave Dunfield's site
> under Disk/Software he has a controller registry. I'm using the Adaptec
> AHA-1522A which uses the National DP8437AV chip.
That should work with most common WD1
On Wed, 9 Aug 2017, Mike Stein via cctalk wrote:
Interesting reading here under disk formats:
https://en.wikipedia.org/wiki/86-DOS
Sounds like there were two Tarbell controllers, single and double
density but both single-sided ?
NO
https://en.wikipedia.org/wiki/86-DOS#Disk_formats
includes a 1
Hmmm. I might have. CW in my storage area. Good idea. I don't know the version
of if I have the software. Let me look later. Great idea.
Rich
Sent from Verizon/AOL Mobile Mail
On Wednesday, August 9, 2017, Fred Cisin wrote:
On Wed, 9 Aug 2017, Mike Stein via cctalk wrote:
> Interesting readi
On 08/09/2017 01:47 PM, Fred Cisin via cctalk wrote:
> That is SO compatible with the NEC 765 chips that I'm going to CALL it
> an NEC chip.
> I wonder if has the same "flash-blind" behavior following index?
> I'll go out on a limb saying that I think that it will NOT give you any
> chaange from u
On Wed, 9 Aug 2017, rich.c...@verizon.net wrote:
Hmmm. I might have. CW in my storage area. Good idea. I don't know the
version of if I have the software. Let me look later. Great idea.
alternatively, do you have ANY computer with 8" drive and WD 179x
controller?
It's not too big a deal to w
There's also the possibility that the drive alignment is so far out of
whack that you're not seeing the data on the SCP disks. This is
unlikely in drives that haven't been diddled with, but unless you bought
the drive NOS, you don't know that.
Grab a known-good 8" floppy--the format doesn't real
> From: Philipp Hachtmann
> The DEC stuff was designed quite wrong-insertion resistant.
> ...
> I did it. Once. It leads to impressive fireworks on many boards.
I managed to plug in an M9301 backwards, once. Luckily, most of the other
boards came through OK (I think I lost one chi
On Wed, 9 Aug 2017, Chuck Guzis via cctalk wrote:
There's also the possibility that the drive alignment is so far out of
whack that you're not seeing the data on the SCP disks. This is
unlikely in drives that haven't been diddled with, but unless you bought
the drive NOS, you don't know that.
I think I have a Cromemco 16FDC laying around. Might be able to put a quick
S100 Z80 system together.
Rich
Sent from Verizon/AOL Mobile Mail
On Wednesday, August 9, 2017, Fred Cisin wrote:
On Wed, 9 Aug 2017, rich.c...@verizon.net wrote:
> Hmmm. I might have. CW in my storage area. Good idea
Will do. These 242 drives are NOS and I have several. I'll swap them too.
Lots to do this weekend!
Rich
Sent from Verizon/AOL Mobile Mail
On Wednesday, August 9, 2017, Chuck Guzis via cctalk
wrote:
There's also the possibility that the drive alignment is so far out of
whack that you're not
On 08/09/2017 03:06 PM, Fred Cisin via cctalk wrote:
> Yes.
> It is not clear whether the issue is with the disks, or with the
> hardware setup.
Again, maybe I'm reading too much into the comments, but I thought that
Rich had formatted a floppy using IMD and verified using the Analyze
function.
Early 90's pen systems.
https://myrtlebeach.craigslist.org/sop/6225365248.html
id be interested in a cast copy of a 8i my self
On Wed, Aug 9, 2017 at 1:15 AM, Rod Smallwood via cctalk <
cctalk@classiccmp.org> wrote:
>
>
> On 08/08/2017 21:43, Ray Neal via cctalk wrote:
>
>> Rod;
>>
>> I'm looking for a PDP-8I acrylic Front Panel for my replica PDP-8I I'm
>> putting togethe
- Original Message -
From: "Richard Cini via cctech"
To: "Discussion: On-Topic Posts Only"
Sent: Tuesday, August 08, 2017 8:54 PM
Subject: Disk imaging with IMD - question
Guys –
I’m working on a restoration project for VCF that requires imaging 8” disks
(both SSSD and DSDD, mostly
Mike --
I gave Bill Degnan the backstory in another thread but in short, I'm working on
restoring VCF's Seattle Gazelle. It uses a DSDD drive system, although the
original drives are still at Infoage. I have the original Seattle disks. The
system was shelved in the mid-1990's.
I have the sys
Hi All,
I have some trouble to get the Bootstrap for an Dilog DU142 (TS11)
Controller running on my PDP-11/84.
The bootstrap on page 3-2 of the following documentation was used:
http://bitsavers.informatik.uni-stuttgart.de/pdf/dilog/2120-0090-1_DU142_Jul87.pdf
That's, what I have saved to the 1
On Aug 9, 2017, at 5:06 AM, Alan Hightower via cctech wrote:
> Will 310 ROMs work in a 300? I believe 310, 400, 600, and 1000 ROMs are
> posted in Seth's emulator project's git hub. If not, I can resend them.
Sort of. The machine will POST and you can use, for example, the standalone
formatter
First try to find someone on the list. Then if the seller wont ship, will
s/he take them to a pack and ship outfit ?
I've packed and shiped for people and my only "charge" is you do the same
someday.
My desire to keep this stuff running is to me worth the hour or two and the
few $'s it costs.
Al
48 matches
Mail list logo
