Microvax II hardware not recognized

I've brought up a MicroVax II and installed VMS 5.5-2 on a SCSI2SD disk and it is fun to work with. (I also installed openvms 7.2 without much drama) The problem I am having is that is has a TK50 tape drive and controller, but it never has shown up in the device list. I even swapped in a

Re: PDP11GUI 1.48

On Wed, Aug 17, 2016 at 5:56 AM, Jörg Hoppe wrote: > Hi, > > a new release of PDP11GUI is online, with lots of enhancements: > > - new disk driver RK611 for RK06/RK07 > - Support for Robotron A6402 PDP-11/23 clone > - Support for PDP-11/44 with console firmware v3.40C > -

Re: HP to acquire SGI

On Wed, Aug 17, 2016 at 11:01:43PM -0500, Chris Elmquist wrote: > > The SGI shared memory systems, the most current of which is called > "UV", is a NUMALink interconnected design. They have a number of > ASICs that implement the interconnect and protocol and bridge to the > Intel processors

Re: SWTPC 6800

On 2016-Aug-17, at 8:26 PM, william degnan wrote: >>> No doubt you can get it to work, and it can be a useful ability in some >>> situations. >>> But monitors and loaders tended to be written with different objectives. >>> >>> Monitors targetted interactive use, not receipt of back-to-back >

Re: HP to acquire SGI

On August 17, 2016 10:49:46 PM CDT, Pontus Pihlgren wrote: >On Tue, Aug 16, 2016 at 02:04:10AM -0400, alexmcwhir...@triadic.us >wrote: >> On 2016-08-16 01:32, Mark J. Blair wrote: >> >But seriously, I didn't know that any pieces of SGI were still >around >> >to acquire. >>

Re: HP to acquire SGI

On Tue, Aug 16, 2016 at 02:04:10AM -0400, alexmcwhir...@triadic.us wrote: > On 2016-08-16 01:32, Mark J. Blair wrote: > >But seriously, I didn't know that any pieces of SGI were still around > >to acquire. > > NUMALink, that's pretty much it in a nutshell I thought that tech was with CRAY

Re: SWTPC 6800

> > > > No doubt you can get it to work, and it can be a useful ability in some > > situations. > > But monitors and loaders tended to be written with different objectives. > > > > Monitors targetted interactive use, not receipt of back-to-back characters, > > which would be why you have to add

Re: DEC Indicator Panels page

> From: Mike Ross > Here's the FP15 you were looking for... Oooh, thanks; I had that image, wasn't exactly sure what it was. I hadn't done much with the PDP-15 panels, in part because it wasn't my focus (the -11) panels, in part because it seemed like there were a ton of them, in the

Re: DEC Indicator Panels page

On 17/08/2016 21:56, Noel Chiappa wrote: So, I've been working for a while on a page about DEC indicator panels (the standardized 36x4 light arrays which go into a 19" rack, with an inlay to customize it to a particular device). It's online now, here:

Re: Are old SCSI tape drives not all created equal?

On 08/17/2016 01:07 PM, j...@cimmeri.com wrote: Hi, folks. I'm experimenting with various old SCSI tape drives to see which will work with my PDP-11/34 with an Emulex SCSI card. To my surprise, not all SCSI tape drives are created equal. Right, there was SCSI, SCSI-II and SCSI-III.

Re: SWTPC 6800

- Original Message - From: "Brad H" To: "'General Discussion: On-Topic and Off-Topic Posts'" Sent: Wednesday, August 17, 2016 7:02 PM Subject: RE: SWTPC 6800 ... > If you have two serial devices on the same line and one is

Re: Are old SCSI tape drives not all created equal?

On 08/17/2016 02:59 PM, j...@cimmeri.com wrote: > Hi, Chuck. Excellent question -- and they do respond per your > minimum, but beyond that, I'm not sure. When a drive wouldn't work, > I only thought to check for unit ready, unit identify, and to see > what would happen with a START or STOP unit

Re: DEC Indicator Panels page

On Thu, Aug 18, 2016 at 10:09 AM, Al Kossow wrote: > > > On 8/17/16 2:45 PM, Mike Ross wrote: > >> I also have an odd box... it's pdp-8/L in style but housed several >> sets of boards for controlling multiple paper tape readers/punches >> IIRC... can't recall the DEC

Re: Are old SCSI tape drives not all created equal?

On Wed, 2016-08-17 at 16:59 -0500, j...@cimmeri.com wrote: > Hi, Chuck. Excellent question -- and they do respond per your minimum, but > beyond that, I'm not sure. What device type do they report to IDENTIFY? There were some early tape drives which presented as direct-access (not

Re: SWTPC 6800

On 2016-Aug-17, at 11:48 AM, william degnan wrote: >> Bill's method, of executing an M command from a text file, achieves the >> same thing: filling memory. >> Something it's missing versus the S-record/loader format method is a >> checksum or any data check. >> One may may not be concerned about

Re: DEC Indicator Panels page

On 8/17/16 2:45 PM, Mike Ross wrote: > I also have an odd box... it's pdp-8/L in style but housed several > sets of boards for controlling multiple paper tape readers/punches > IIRC... can't recall the DEC designator. PR68, used in typesetting.

Re: Are old SCSI tape drives not all created equal?

On 8/17/2016 2:38 PM, Chuck Guzis wrote: On 08/17/2016 11:07 AM, j...@cimmeri.com wrote: I'm experimenting with various old SCSI tape drives to see which will work with my PDP-11/34 with an Emulex SCSI card. To my surprise, not all SCSI tape drives are created equal. I was under the

Re: DEC Indicator Panels page

On Thu, Aug 18, 2016 at 8:56 AM, Noel Chiappa wrote: > So, I've been working for a while on a page about DEC indicator panels (the > standardized 36x4 light arrays which go into a 19" rack, with an inlay to > customize it to a particular device). It's online now, here: >

Re: DEC Indicator Panels page

On Thu, Aug 18, 2016 at 8:56 AM, Noel Chiappa wrote: > So, I've been working for a while on a page about DEC indicator panels (the > standardized 36x4 light arrays which go into a 19" rack, with an inlay to > customize it to a particular device). It's online now, here: >

DEC Indicator Panels page

So, I've been working for a while on a page about DEC indicator panels (the standardized 36x4 light arrays which go into a 19" rack, with an inlay to customize it to a particular device). It's online now, here: http://ana-3.lcs.mit.edu/~jnc/tech/DECIndicatorPanels.html Does anyone happen to

Re: PDP11GUI 1.48

Awesome software btw. I use it with my '44. Kirk Sent from my iPhone > On Aug 16, 2016, at 10:56 AM, Jörg Hoppe wrote: > > Hi, > > a new release of PDP11GUI is online, with lots of enhancements: > > - new disk driver RK611 for RK06/RK07 > - Support for Robotron A6402

Re: Huge Vintage Mac Sale in Denver

Is anybody on the list local to Denver? I'm on the wrong side of the country, and he's not interested in shipping. Todd On Wed, Aug 17, 2016 at 3:48 PM, Ted Hodges wrote: > Hi All, > > The lease is up at the end of the month, and all of my Macintosh stuff has > to go!

Huge Vintage Mac Sale in Denver

Hi All, The lease is up at the end of the month, and all of my Macintosh stuff has to go! Hundreds of Macs from the 1980s, 1990s, and Early 2000s to choose from! Also have tons of Keyboards, Mice, Monitors, and Peripherals, Expansion Cards, Hard Drives, and everything else. All CPUs $10/each!

Re: Are old SCSI tape drives not all created equal?

On 2016-08-17 4:11 PM, Guy Sotomayor Jr wrote: On Aug 17, 2016, at 12:01 PM, Maciej W. Rozycki wrote: On Wed, 17 Aug 2016, Mouse wrote: SCSI is more than just the physical interface. Traditional SCSI is a parallel interface, with a bunch of signals and grounds. But,

Re: Are old SCSI tape drives not all created equal?

> On Aug 17, 2016, at 12:18 PM, Paul Koning wrote: > > >> On Aug 17, 2016, at 3:11 PM, Guy Sotomayor Jr wrote: >> >> ... >> If you *really* want to see how this was screwed up, take a look at >> Fibre Channel (which is basically SCSI over an

Re: Are old SCSI tape drives not all created equal?

Thanks very much, Mouse, Paul, Maciej, and Guy for helping me understand my SCSI tape drives. I had no idea! - John

Re: Are old SCSI tape drives not all created equal?

> On Aug 17, 2016, at 3:11 PM, Guy Sotomayor Jr wrote: > > ... > If you *really* want to see how this was screwed up, take a look at > Fibre Channel (which is basically SCSI over an optical Fibre network). > > While the commands are standard, you can’t really build a Fibre

Re: Are old SCSI tape drives not all created equal?

> On Aug 17, 2016, at 12:01 PM, Maciej W. Rozycki wrote: > > On Wed, 17 Aug 2016, Mouse wrote: > >> SCSI is more than just the physical interface. Traditional SCSI is a >> parallel interface, with a bunch of signals and grounds. But, layered >> atop the physical

Re: Are old SCSI tape drives not all created equal?

> On Aug 17, 2016, at 3:01 PM, Maciej W. Rozycki wrote: > > On Wed, 17 Aug 2016, Mouse wrote: > >> SCSI is more than just the physical interface. Traditional SCSI is a >> parallel interface, with a bunch of signals and grounds. But, layered >> atop the physical

Re: Are old SCSI tape drives not all created equal?

On Wed, 17 Aug 2016, Mouse wrote: > SCSI is more than just the physical interface. Traditional SCSI is a > parallel interface, with a bunch of signals and grounds. But, layered > atop the physical interface, there is also a command/response protocol > which is, strictly, independent of the

Re: SWTPC 6800

> > > > > Bill's method, of executing an M command from a text file, achieves the > same thing: filling memory. > Something it's missing versus the S-record/loader format method is a > checksum or any data check. > One may may not be concerned about line noise over a short RS-232 line, > but if

Re: Are old SCSI tape drives not all created equal?

> On Aug 17, 2016, at 2:07 PM, j...@cimmeri.com wrote: > > ... >Or maybe there were different > SCSI standards? Or is the standard simply imperfect? Yes. Among other things, SCSI is very peculiar in that it sends out many "draft" standards but allows devices to be built that "conform" to

Re: Are old SCSI tape drives not all created equal?

> To my surprise, not all SCSI tape drives are created equal. I was > under the mistaken assumption that all SCSI tape drives would pretty > much be abstracted the same way by the SCSI interface. That's the ideal. As you discovered, the world is far from ideal. > Question: So, even though some

Re: Beaten by VT100 PSU.

On 8/17/2016 1:19 PM, tony duell wrote: More load _reduces_ the ripple? That's very unusual. Perhaps a parasitic oscillation that's defeated by more load because now the loop gain is below 1? But loading the +5V output also reduces the ripple on the +12V output. Loading the +5V output would,

RE: Beaten by VT100 PSU.

> > > More load _reduces_ the ripple? That's very unusual. > > Perhaps a parasitic oscillation that's defeated by more load > because now the loop gain is below 1? But loading the +5V output also reduces the ripple on the +12V output. Loading the +5V output would, I think, vary the mark-space

Re: Beaten by VT100 PSU.

> On Aug 17, 2016, at 2:07 PM, tony duell wrote: > > >> When I used a variable load on the 12V both the amplitude and the period >> varied. More load less amplitude. > > More load _reduces_ the ripple? That's very unusual. Perhaps a parasitic oscillation that's

RE: Beaten by VT100 PSU.

> When I used a variable load on the 12V both the amplitude and the period > varied. More load less amplitude. More load _reduces_ the ripple? That's very unusual. > Added the AVO option. Then I have perfect picture. So the extra loading > makes a difference. But that mostly loads the +5V

Are old SCSI tape drives not all created equal?

Hi, folks. I'm experimenting with various old SCSI tape drives to see which will work with my PDP-11/34 with an Emulex SCSI card. To my surprise, not all SCSI tape drives are created equal. I was under the mistaken assumption that all SCSI tape drives would pretty much be

Re: Beaten by VT100 PSU.

> It's certainly an odd one... > > There are several things that are curious. The first is the frequency > of the waveform. 329Hz or so according to your 'scope (assuming > I am reading it right). That is far too high to be mains ripple. It is too > low to be the oscillator in the SMPSU. So where

Re: SWTPC 6800

On 2016-Aug-16, at 9:55 AM, Brad H wrote: > Thanks Brent. So when I hit the end of an 'S' record line.. is it just a > Line Feed I need to go to the next? Or just type the next S record right in > behind it? Either should be OK, an S record is terminated by the number of bytes in the byte

Re: can anyone identify this terminal keyboard and pcb?

On 8/16/16 6:59 PM, Brad H wrote: > > > Neat. Any thoughts as to model year? Are these ASCII? > Date code range I see on the chips is 1977-79. I dumped and decoded the font rom. The code is similar but not quite ASCII. Alphanumerics seem to be in the right place. I'll try powering it

RE: Beaten by VT100 PSU.

> Normally I manage to repair the SMPSU that I dive into. But this time I > must admit that I am defeated. > > It is a VT100 PSU (H7831). I tested it with dummy loads and it worked fine. > But when used in the terminal with the Basic Video board and monitor board > it gives a jumpy picture. Both

Canon VP-1000

This recently came up on the FB vintage computing group. http://www.thepcmuseum.net/details.php?RECORD_KEY%28museum%29=id%28museum%29=52=0fdc5f4de5123757cb0023058ce4c171 Allegedly it's a successor to the Canon Cat and preserved some elements of it, but Google can find little about it. Others

Re: Beaten by VT100 PSU.

2016-08-17 11:14 GMT+02:00 Peter Coghlan : > > > > It is a VT100 PSU (H7831). I tested it with dummy loads and it worked > fine. > > But when used in the terminal with the Basic Video board and monitor > board > > it gives a jumpy picture. Both horizontally and

Re: DEC PDP bits and Programma 101 available

Hi, I'd like bid onto the VR14 + VT11 pack. What should it cost? Pick up is no problem, I live in Lower-Saxony, Germany. Thanks, Joerg Am 15.08.2016 um 21:17 schrieb Erik W.: Dear reader, For a serious enthusiast or museum I have available: * Olivetti Programma 101 calculator * DEC

Re: Beaten by VT100 PSU.

> > It is a VT100 PSU (H7831). I tested it with dummy loads and it worked fine. > But when used in the terminal with the Basic Video board and monitor board > it gives a jumpy picture. Both horizontally and vertically. First I thought > that it was related to the monitor board but soon recognised

Beaten by VT100 PSU.

Normally I manage to repair the SMPSU that I dive into. But this time I must admit that I am defeated. It is a VT100 PSU (H7831). I tested it with dummy loads and it worked fine. But when used in the terminal with the Basic Video board and monitor board it gives a jumpy picture. Both horizontally

RE: SWTPC 6800

Lets start with the easy bits. A quick google turned up some zips of S9 software but not sure if its 6800 or 6809 http://www.flexusergroup.com/flexusergroup/fug5.htm Now S1 records vsus using the monitor. If you are just typing yourself then getting a whole S1 record correct can be a

Re: Front Panel Update - PDP-8/i

Hi Thank you for your order Please send payment to PayPal rodsmallwoo...@btinternet.com as below and your shipping address to me. On 16/08/2016 22:36, Adrian Stoness wrote: I would like to order one how do I do that? On Aug 16, 2016 3:41 PM, "Rod Smallwood"