[cctalk] Re: M7846 RX11 Unibus floppy controller board documentation?

2023-10-18 Thread Christian Corti via cctalk
On Wed, 18 Oct 2023, Tom Hunter wrote: I was unable to locate schematics and/or a maintenance manual for the Unibus M7846 RX11 floppy controller board. On our FTP server ;-) ftp://computermuseum.informatik.uni-stuttgart.de/dec/pdp11/RX11_EngineeringDrawings_13Jun1975.pdf Christian

[cctalk] Re: M7846 RX11 Unibus floppy controller board documentation?

2023-10-18 Thread Tom Hunter via cctalk
Thank you Christian !!! Best regards Tom On Wed, Oct 18, 2023 at 3:41 PM Christian Corti via cctalk < cctalk@classiccmp.org> wrote: > On Wed, 18 Oct 2023, Tom Hunter wrote: > > I was unable to locate schematics and/or a maintenance manual for the > > Unibus M7846 RX11 floppy controller board. >

[cctalk] PDP11 and Ultrix 11

2023-10-18 Thread hupfadekroua via cctalk
Hello all, does someone have a SCSI disc image of Ultrix 11 for a QBus based (11/73) PDP11. A.

[cctalk] Re: PDP11 and Ultrix 11

2023-10-18 Thread Henry Bent via cctalk
On Wed, 18 Oct 2023 at 09:56, hupfadekroua via cctalk wrote: > Hello all, > > does someone have a SCSI disc image of Ultrix 11 for a QBus based (11/73) > PDP11. > Ultrix-11 doesn't support SCSI disks, as far as I am aware. What hardware are you trying to use? In any case, you can easily use SI

[cctalk] Re: PDP11 and Ultrix 11

2023-10-18 Thread Bill Gunshannon via cctalk
On 10/18/2023 10:00 AM, Henry Bent via cctalk wrote: On Wed, 18 Oct 2023 at 09:56, hupfadekroua via cctalk wrote: Hello all, does someone have a SCSI disc image of Ultrix 11 for a QBus based (11/73) PDP11. Ultrix-11 doesn't support SCSI disks, as far as I am aware. What hardware are yo

[cctalk] Re: PDP11 and Ultrix 11

2023-10-18 Thread Henry Bent via cctalk
On Wed, 18 Oct 2023 at 10:16, Bill Gunshannon via cctalk < cctalk@classiccmp.org> wrote: > > > On 10/18/2023 10:00 AM, Henry Bent via cctalk wrote: > > On Wed, 18 Oct 2023 at 09:56, hupfadekroua via cctalk < > cctalk@classiccmp.org> > > wrote: > > > >> Hello all, > >> > >> does someone have a SCSI

[cctalk] Re: PDP11 and Ultrix 11

2023-10-18 Thread Paul Koning via cctalk
> On Oct 18, 2023, at 10:20 AM, Henry Bent via cctalk > wrote: > > On Wed, 18 Oct 2023 at 10:16, Bill Gunshannon via cctalk < > cctalk@classiccmp.org> wrote: > >> >> >> On 10/18/2023 10:00 AM, Henry Bent via cctalk wrote: >>> On Wed, 18 Oct 2023 at 09:56, hupfadekroua via cctalk < >> cctal

[cctalk] Re: PDP11 and Ultrix 11

2023-10-18 Thread Hans-Ulrich Hölscher via cctalk
The EMULEX UC07 SCSI Adapter manual ( http://www.bitsavers.org/pdf/emulex/UC0751001-F_UC07_Feb90.pdf) says: "Ultrix-11 V3.0 and above" Ulli Am Mi., 18. Okt. 2023 um 16:32 Uhr schrieb Paul Koning via cctalk < cctalk@classiccmp.org>: > > > > On Oct 18, 2023, at 10:20 AM, Henry Bent via cctalk < >

[cctalk] PDP11 Dilog SQ706a SCSI Controller

2023-10-18 Thread hupfadekroua via cctalk
Hello all, are there some experiences to install as well as to configure a Dilog SQ706a QBus SCSI controller in a PDP11/73 successfully? The controller in question is working properly, that's executing the self as well as the host DMA connection tests successfully. The format procedure of a phys

[cctalk] Re: PDP11 Dilog SQ706a SCSI Controller

2023-10-18 Thread Douglas Taylor via cctalk
On 10/18/2023 2:26 PM, hupfadekroua via cctalk wrote: I think you have to look at how the ZULU SCSI emulator is setup.  There you will be able to map the RSX image to unit #0, which would appear as DU0. It maybe that the RSX image is meant to boot from some other unit, say DU4.  Its possible

[cctalk] Re: PDP11 Dilog SQ706a SCSI Controller

2023-10-18 Thread Henry Bent via cctalk
On Wed, 18 Oct 2023 at 14:27, hupfadekroua via cctalk wrote: > Hello all, > > are there some experiences to install as well as to configure a Dilog > SQ706a QBus SCSI controller in a PDP11/73 successfully? > > The controller in question is working properly, that's executing the self > as well as

[cctalk] Livestream 10/21/23 - Liza Loop, Byron Stout, Wil Lindsay & Jim Hall - VCF's YouTube channel

2023-10-18 Thread Jeffrey Brace via cctalk
This Saturday, Oct. 21, 2023 at 6:30PM EDT, we will livestream to VCF's YouTube channel (https://www.youtube.com/@vcfederation) a talk with Liza Loop, Byron Stout, Wil Lindsay and Jim Hall. We will be talking about Educating today's children with vintage computers. We will take questions from the

[cctalk] Re: PDP11 and Ultrix 11

2023-10-18 Thread Glen Slick via cctalk
On Wed, Oct 18, 2023 at 7:32 AM Paul Koning via cctalk wrote: > > If you have an MSCP translator type controller, but the translation is poorly > done, you might end up with it failing for some operating systems. That's > not too unlikely given that the MSCP spec was for a long time a DEC > co

[cctalk] 11/15, 11/20 systems and parts, more

2023-10-18 Thread Paul Anderson via cctalk
I am working on a deal which includes several PDP11/15 or 20s. I will be looking at them next week and hope to get more details. I will look for exact model numbers and configuration.At least 2 of them have non DEC silkscreens on the front panel. Also a selection of 11/05 and 11/10 including 5 1/4

[cctalk] Re: PDP11 and Ultrix 11

2023-10-18 Thread Jacob Ritorto via cctalk
> On Oct 18, 2023, at 09:56, hupfadekroua via cctalk > wrote: > > Hello all, > > does someone have a SCSI disc image of Ultrix 11 for a QBus based (11/73) > PDP11. > > A. I have sitting in front of me a PDP-11/83 running ULTRIX-11 v3.1 on MSCP SCSI via the CMD CQD-200 controller. It’s w