Hi
Many interesting boards. I tried to identify them with the field guide:
http://world.std.com/~mbg/pdp11-field-guide.txt
But many numbers didn't exist there. For instance M7765 of which you
have 15.
Have I missed something?
/P
On Thu, Aug 13, 2015 at 12:42:53AM -0500, Paul Anderson wrote:
>
Older DOS utils like IMD or TELEDISK knew better about 8" disks and
precompression, directly accessing the controller. If the Supercard software
has been written with no 8" disks support it will be hard to manage writes
correctly. My two cents
Messaggio originale
Da: supervinx
He told me there's no Linux support. I should try Keirf's utils or access the
hardware with a serial connection.
May be I could try the Supercard in a VM.
Messaggio originale
Da: supervinx
Data:13/08/2015 08:25 (GMT+01:00)
A: "General Discussion: On-Topic and Off-Topic Po
Hi!
A bit OT.
I tried the fdadap card successfully reading and writing SD and DD disks,
together with a standard ISA controller.
Had to try a bit, since not every disk controller manages SD writes.
So the FDADAP should be ok, and the problems lie on the Supercard side.
I contacted the Supercard g
Sorry, this wasn't done the way i wanted. for the 2 digit numbers place a
70 in front, for the rest , just put a M7 in front.
On Thu, Aug 13, 2015 at 12:33 AM, Paul Anderson wrote:
> This might work better
>
>
> https://drive.google.com/file/d/0B2MOaRm-6XKNV3hENS1Hd1lURXc/view?usp=sharing
>
>
This might work better
https://drive.google.com/file/d/0B2MOaRm-6XKNV3hENS1Hd1lURXc/view?usp=sharing
On Wed, Aug 12, 2015 at 11:58 PM, jwsmobile wrote:
>
>
> On 8/12/2015 8:26 PM, Paul Anderson wrote:
>
>> Thanks Jay,
>>
>> I was afraid i messed in up
>>
>> On Wed, Aug 12, 2015 at 10:25 PM,
On 8/12/2015 8:26 PM, Paul Anderson wrote:
Thanks Jay,
I was afraid i messed in up
On Wed, Aug 12, 2015 at 10:25 PM, Jay Jaeger wrote:
When I visited this link, I ended up with a blank, white page.
JRJ
I get a blank page too, no action. Google drive shares don't leave much
you can
Ooh, thanks for that; I have long been intrigued by Burroughs ... they
always tried rather unusual approaches ... seeing if I can get MCP fired up
sounds like a fun weekend project.
Best,
Sean
On Wed, Aug 12, 2015 at 3:28 PM, Jay Jaeger wrote:
> In addition, B5500/B5700 Mark XIII and B5500/B5
Thanks Jay,
I was afraid i messed in up
On Wed, Aug 12, 2015 at 10:25 PM, Jay Jaeger wrote:
> When I visited this link, I ended up with a blank, white page.
>
> JRJ
>
> On 8/12/2015 10:12 PM, Paul Anderson wrote:
> > Well, here's another update on my never ending/ always changing list of
>
I was having problems sending these to some members, so i'm trying to post
them.
https://drive.google.com/folderview?id=0B2MOaRm-6XKNfkxxZ0ZMZldZUGh0SjVMWHA0RGJ4QkxVcE02SjhNMmVOMWpGcmJUaFRQZEU&usp=gmail
Well, here's another update on my never ending/ always changing list of
quad and hex boards. These are all M7xxx, and the M8xxx should be done in a
week or so. There are a few boards here I will be using myself, But I am
planning on selling off about 80% of my DEC equipment. All is located in
zip 6
On 08/12/2015 07:22 PM, Jerome H. Fine wrote:
One rather interesting aspect was that the DEC code did not
alternate between side 1 and side 2 as the head advanced. All of
side 1 was processed first followed by all of side 2. As a result,
when a floppy media with a SS index hole was written on
On 2015-08-12 1:39 PM, Nigel Williams wrote:
On 12 Aug 2015, at 11:24 pm, Paul Koning wrote:
On Aug 11, 2015, at 10:23 PM, Mark Kahrs wrote:
For those of you who might be interested, I sent a listing of the B6700
ALGOL compiler source code to the CHM.
I did find a copy of the B6500 ESPOL
At 07:27 PM 8/11/2015, Josh Dersch wrote:
>Thus far I've been successful in creating images of floppies, but less
>successful in writing them back out. Thus far I've tried a pair of Shugart
>851s and a Qume QumeTrack 842. I'm using a DBit FDADAP
>(http://www.dbit.com/fdadap.html) to deal with
>Chuck Guzis wrote:
On 08/12/2015 11:12 AM, Jerome H. Fine wrote:
I forgot to mention one item. Since I had VERY few Double Sided
media with the index hole offset that extra 1/2" from the Single Sided
index hole - and I have many RX02 compatible floppy media which
are Single Sided with the in
I went back to the FDD-200 manual. The signal is ILLEGAL PACK and is on
the FDD200, not FDD100 --that's logical.
Sorry, I've been distracted by personal events lately.
--Chuck
On 8/12/15 4:21 PM, Chuck Guzis wrote:
I could have that reversed--and that SS media in the FDD-200 would cause an "illegal
media" signal to be asserted, but it's odd either way.
I'll have to check bitsavers when I get time.
An FD-200 service manual would be nice to have a scan of. I don't h
On 8/12/15 11:34 AM, Peter Coghlan wrote:
The posting email addresses are only slightly disguised and could be harvested
by spammers. Would it be possible to filter them a bit better before they are
found?
That horse is already out of the barn.
https://web.archive.org/web/20141025044832/htt
On 08/12/2015 02:22 PM, Eric Smith wrote:
On Wed, Aug 12, 2015 at 2:26 PM, Chuck Guzis
wrote:
...and others, such as the Siemens FDD-100 (single sided) will
output an "illegal medium" signal if double-sded floppies are
inserted.
Interesting. I think the single-sided drives I've dealt with jus
On 8/12/2015 3:26 PM, Chuck Guzis wrote:
>
> ...and others, such as the Siemens FDD-100 (single sided) will output an
> "illegal medium" signal if double-sded floppies are inserted.
>
> --Chuck
>
Hmmm. I have an FDD-100-8 (single sided). The manual mentions no such
signal and only one index se
On Wed, Aug 12, 2015 at 2:26 PM, Chuck Guzis wrote:
> ...and others, such as the Siemens FDD-100 (single sided) will output an
> "illegal medium" signal if double-sded floppies are inserted.
Interesting. I think the single-sided drives I've dealt with just
never assert READY, because they don't h
On 08/12/2015 01:05 PM, Eric Smith wrote:
Some drives, like the Mitsubishi M2896-63, can be configured to
suppress the READY output if the second side of a single-sided disk
is selected, or to ignore the sidedness of the medium. Mitsubishi
refers to this as "Ready Standard" vs. "Ready Modified"
On Wed, Aug 12, 2015 at 1:36 PM, Chuck Guzis wrote:
> My drives are configured to take either index signal--so it doesn't matter
> if the media is coded as SS or DS. Many floppy drives can do this.
Some 8-inch double-sided drives don't care about which index sensor is
active, other than to outpu
Hi folks,
I picked up an 1101 GRiDcompass with no power supply.
I'd like to attempt a retrofit. Does anyone know what voltages are in play?
I'm specifically worried about the EL panel and want to know if the high
voltages for it are produced in the PSU itself, or the panel.
Any information, or
On 08/12/2015 11:12 AM, Jerome H. Fine wrote:
I forgot to mention one item. Since I had VERY few Double Sided
media with the index hole offset that extra 1/2" from the Single Sided
index hole - and I have many RX02 compatible floppy media which
are Single Sided with the index hole in the wrong p
In addition, B5500/B5700 Mark XIII and B5500/B5700 MARK XV.3 release
tapes can be found online.
UNISYS released these under the "UNISYS MCP MARK XIII SOFTWARE
EDUCATIONAL/HOBBYIST LICENSE AGREEMENT" in 2012, having been approached
by the owner of the tapes.
At least Mark XIII is available on Paul
I sent Al a link to my google drive copy of the archives thru 2012.
I am going to create a 2012-2015 manually from my email archive of the
group and add that.
If you send email, i'll send you the link to my google drive public archive.
thanks
Jim
On 8/12/2015 10:36 AM, Noel Chiappa wrote:
> On Aug 12, 2015, at 1:39 PM, Nigel Williams
> wrote:
>
>
>> On 12 Aug 2015, at 11:24 pm, Paul Koning wrote:
>> ...
>> Did Algol come after the hardware? I always thought of the hardware as
>> having been customized for their Algol, but admittedly I don’t actually know
>> which is chicken
>
> If so, I've been hosting an 'un-official' copy of the archives from March '97
> to January '05 here:
>
> http://ana-3.lcs.mit.edu/~jnc/cctalk/
>
The posting email addresses are only slightly disguised and could be harvested
by spammers. Would it be possible to filter them a bit better before
I forgot to mention one item. Since I had VERY few Double Sided
media with the index hole offset that extra 1/2" from the Single Sided
index hole - and I have many RX02 compatible floppy media which
are Single Sided with the index hole in the wrong place for being a
Double Sided media - I added a
> On 12 Aug 2015, at 11:24 pm, Paul Koning wrote:
>> On Aug 11, 2015, at 10:23 PM, Mark Kahrs wrote:
>> For those of you who might be interested, I sent a listing of the B6700
>> ALGOL compiler source code to the CHM.
> I did find a copy of the B6500 ESPOL compiler online recently.
In the B55
> From: Al Kossow
> You can find a discussion about it in the archives (well, actually, you
> can't).
> Which reminds me..
> The archive have never come back to http://www.classiccmp.org/lists.html
Ah, which archives are we speaking of? The CCTalk archives?
If so, I've been h
Thanks for the detailed description (and thanks to everyone else for their
input!). That all makes sense. The firmware for the SuperCard Pro is closed
source (which is kind of a bummer) so I can't look at it to see what it's
doing. I've posted a message on the CBMStuff Forum and we'll see wha
I forgot to mention one item. Since I had VERY few Double Sided
media with the index hole offset that extra 1/2" from the Single Sided
index hole - and I have many RX02 compatible floppy media which
are Single Sided with the index hole in the wrong place for being a
Double Sided media - I added a
>Josh Dersch wrote:
Here at the museum I'm evaluating the use of a SuperCard Pro
(http://www.cbmstuff.com/proddetail.php?prod=SCP) to archive and duplicate 8"
floppies from various machines. It's not technically supported (the manual states
that it *should* work but has not been tested, etc.
On 8/12/15 6:26 AM, Jay Jaeger wrote:
The correspondent should probably check with the SuperCard Pro folks to
make sure BOTH have been implemented. It is quite possible neither have.
I know Philip ran into this with writing real media with his Diskferret. You
can find a discussion about it i
You and I were thinking of two different things: I was thinking of the
reduced write current on the inside tracks, and you were thinking of
changing the bit timing. On the latter point, I was incorrect.
For reduced write current, all the controller does is to tell the drive
whether or not it is
> On Aug 11, 2015, at 10:23 PM, Mark Kahrs wrote:
>
> I assure you Chuck, I do know the original B5500 ALGOL having written my
> first program on one.
>
> For those of you who might be interested, I sent a listing of the B6700
> ALGOL compiler source code to the CHM.
Did it end up online somew
It had a rom but it wasn't a debug monitor. Disk boot of some sort.
I ported a monitor to the board using clues I found in the rom and a lot of
multimeter time figuring out where things went.
I'll look around and see if I can find it.
Thanks for the manual!
> On Aug 11, 2015, at 7:54 PM, Al Ko
On Tue, 11 Aug 2015, Jay Jaeger wrote:
Aside from the write pre-comp thing which you seem to have in hand (and
which is generally handled by the *drive*, not the controller, i.e., the
bit timing from the controller does not change, as far as I know), one
Au contraire.
Write precompensation is
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