Re: Front Panels - Pricing

Hi Kip Panels for 8/e 8/f and 8/m will normally be a stock item. They have only been used so far on the genuine DEC systems they were intended for. You might want to check if PiDP8 will work. Rod On 09/11/15 10:34, Kip Koon wrote: Hi Rod, I'd love have a PiDP8 running with one of

Re: WD9000 Pascal microengine schematics available

On 11/5/15 6:57 PM, Al Kossow wrote: On 11/5/15 3:55 PM, Al Kossow wrote: On 11/5/15 10:40 AM, Jos Dreesen wrote: And then around 100 / 150 8" floppies to image when it rains it pours.. http://www.ebay.com/itm/311470113149 Eric Smith and I have been looking for these for a long time.

Re: WD9000 Pascal microengine schematics available

On 11/9/15 6:04 AM, Brad Parker wrote: I was wondering about software. Is anyone planning to turn those schematics into verilog? Help would be nice reverse-engineering the chipset. I also picked up some of the Russian versions of the instruction decode chip.

Re: youtube video of a runnning XDS Sigma mainframe with lots of nice peripherals

On 11/2/15 8:00 PM, Al Kossow wrote: On 11/2/15 2:15 PM, Rich Alderson wrote: Not just running condition. 100,000 pounds of gear, including the 9, 6, and a 7 that had been retired in the 90s, spares for all of them, the 8 running disk drives and 4 running tape drives, along with about 20 more

Re: IBM System/32 available

The seller emailed me some pictures. It does look pretty good, aside from some peeling paint on the front of the floppy drive compartment (I think) sheet metal panel, and the expected yellowing of the keyboard surround plastic.. This model has the keyswitch option, which is the only

Re: PDP 11/03

> From: Henk Gooijen > As far as my limited PDP-11 knowledge goes, none of them used > handshake. I'm pretty sure this is true of all the ones that had a hardwired serial console - it's definitely true of the 11/23 and J11 chip ones (/73, etc), and probably the 11/03's too (although

Re: PDP 11/03

On 2015-11-09 21:13, jwsmobile wrote: On 11/9/2015 4:09 AM, Noel Chiappa wrote: > From: Jim Stephensn > I'm looking for a cable or cable pinout to get the console of this > 11/03 going. > ... > It has a M7940-YA DLV11 controller. Hmm. I can't find anything online

Re: IBM System/32 available

Sorry for being out of touch: in transit from NZ to NY and crazy busy. No news my end but plan to speak to seller and visit system towards end of week. I know at least a couple of you have emailed me privately; sorry for not responding but will update ASAP. I'd *like* to claim it for the Corestore

Re: IBM System/32 available

On 11/9/15 7:31 PM, Eric Smith wrote: Do you have any idea why it was thought a good idea to use edge-triggered interrupts? I wasn’t really involved in the HW side of things but I think it was because it was “easier”. I think at least one device just generated a pulse for an interrupt

Re: IBM System/32 available

> On Nov 9, 2015, at 19:12, Mike Ross wrote: > > Sorry for being out of touch: in transit from NZ to NY and crazy busy. No > news my end but plan to speak to seller and visit system towards end of > week. I know at least a couple of you have emailed me privately; sorry for >

Re: IBM System/32 available

Wow that looks to be in fantastic condition considering its around 40 years old now! I really wish the best of luck to whomever gets it. I must say I'm very jealous ;) -Connor K On 11/9/2015 9:20 PM, Mark J. Blair wrote: At long last, here are pictures and details!

Re: WD9000 Pascal microengine schematics available

On 09.11.2015 15:11, Al Kossow wrote: On 11/9/15 6:04 AM, Brad Parker wrote: I was wondering about software. Is anyone planning to turn those schematics into verilog? Help would be nice reverse-engineering the chipset. I also picked up some of the Russian versions of the instruction

Re: PDP 11/03

On 11/9/2015 4:09 AM, Noel Chiappa wrote: > From: Jim Stephensn > I'm looking for a cable or cable pinout to get the console of this > 11/03 going. > ... > It has a M7940-YA DLV11 controller. Hmm. I can't find anything online about the -YA variant of the DLV11; the

Re: PDP 11/03

-Oorspronkelijk bericht- From: jwsmobile Sent: Monday, November 09, 2015 9:13 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: PDP 11/03 I am mainly asking if I want to hook up a terminal, can I get it going with TD, RD and GND (or 2 3 7 on a DB25), or do I need

Re: IBM System/32 available

> On Nov 9, 2015, at 12:26 PM, Eric Smith wrote: > > On Thu, Nov 5, 2015 at 8:18 PM, Guy Sotomayor wrote: >> * The expansion bus in the IBM PC was the same bus as the System/23.The >> connector was rotated 180* so that some of the less expensive >>

Re: WD9000 Pascal microengine schematics available

On Mon, Nov 9, 2015 at 12:39 PM, Jos Dreesen wrote: [about the WD2083U-04] > It is indeed an interrupt priority encoder. > I believe it is identical to the am25ls2513, as that is what is used in and > early version of the schematics. Interesting. I'd never seen any

Re: WD9000 Pascal microengine schematics available

Note that there is (at least) one error in the schematics. Two pins of the WD2803U-04 are labeled 11, and pin 1 is not shown. The DRQ1B- signal should actually be on pin 1.

Re: WD9000 Pascal microengine schematics available

On Mon, Nov 9, 2015 at 12:29 PM, Jos Dreesen wrote: > Furthermore there seems to have been variants of the Microengine with and > without the interrupt priority encoder.( WD2083-U04 ) > Anyone aware of these variants ? All of the WD900 boards I've seen have the

Re: PDP 11/03

On 11/9/2015 12:22 PM, Henk Gooijen wrote: -Oorspronkelijk bericht- From: jwsmobile Sent: Monday, November 09, 2015 9:13 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: PDP 11/03 I am mainly asking if I want to hook up a terminal, can I get it going with TD, RD

Re: IBM System/32 available

On Thu, Nov 5, 2015 at 8:18 PM, Guy Sotomayor wrote: > * The expansion bus in the IBM PC was the same bus as the System/23.The > connector was rotated 180* so that some of the less expensive >cards from the PC couldn't be used in the System/23. The other >reason

Re: PDP 11/03

Just in case it helps, a while back I made a little board to adapt DLV11 plugs to 8p8c modular jacks, since I'm rediscovering the utility of adapting everything I own to common serial pinouts. It's not packaged up for public consumption very well yet (including a link in the documentation to a

Re: PDP 8E Panel Paint Chipping - How to seal edges

Depends on why it is peeling. My glass panel on the Straight 8 was peeling. I suspect finger oil was what started it and once it started peeling there was no good way to stop it. I scraped back to the color change line and cleaned the glass and repainted. That was around 1985 and it has stayed

Re: WD9000 Pascal microengine schematics available

On 09.11.2015 20:15, Eric Smith wrote: On Mon, Nov 9, 2015 at 7:04 AM, Brad Parker wrote: I was wondering about software. Is anyone planning to turn those schematics into verilog? I'm working on dumping the microcode. Your post overlapped with mine... The WD9000

Re: IBM System/32 available

> On Nov 9, 2015, at 11:48, Al Kossow wrote: > > On 11/9/15 11:46 AM, Mark J. Blair wrote: >> I got a reply from the seller of this system, and I'll see if I can go take >> a look at it today or tomorrow. > > And so far, it's still priceless. Maybe I can do something

Re: IBM System/32 available

On Mon, Nov 9, 2015 at 9:25 PM, Guy Sotomayor wrote: > The 8259 (along with the damned 8254) are still alive and well in current > Intel PCHs. As I said, it's still there for compatibility. However AFAIK most OSes use the APIC instead, at least by default. Linux has a kernel

Re: PDP 11/03

On 11/9/2015 7:31 PM, Noel Chiappa wrote: > From: Jim Stephensn > The 9400-YE has the cables that formerly went to the 11-780. I'm not > sure what it does. ... I'm not sure if the M9400 needs to be pulled or > not to run the system. This one I actually can answer, since

VT100 - FUN

Hi Guys Going back to the days when I worked in marketing in DEC Park (Then new ,now demolished) I had a VT100 on my desk. We all did, email, word processing graphics and so on. Now there was one interesting but little known VT100 feature. On the back it had two BNC connectors. They

Re: IBM System/32 available

At long last, here are pictures and details! http://www.nf6x.net/2015/11/ibm-system32-at-the-local-electronics-recycler/ -- Mark J. Blair, NF6X http://www.nf6x.net/

Re: IBM System/32 available

>> Do you have any idea why it was thought a good idea to use >> edge-triggered interrupts? > > I wasn’t really involved in the HW side of things but I think it was because > it was > “easier”. I think at least one device just generated a pulse for an > interrupt rather > than having some sort

Re: PDP 11/03

> From: Jim Stephensn > The 9400-YE has the cables that formerly went to the 11-780. I'm not > sure what it does. ... I'm not sure if the M9400 needs to be pulled or > not to run the system. This one I actually can answer, since I've been looking for /780 documentation: found

Re: Deciphering PDP-11/05 ZQKC (Instruction Exerciser) MAINDEC failures...

On 09/11/2015 21:42, Josh Dersch wrote: Thanks, I should have thought to check the revision codes in the first place. Looks like the Bitsavers docs are from revision C; I've been running the paper-tape version that's on Bitsavers (

Re: PDP 11/03

> From: Jim Stephensn >> I can supply both null-modem and non-null-modem cable diagrams (for >> DB25 connectors, already worked out; I have made DB9 serial cables, >> but not for direct connection to a DLV11, but could generate those >> too). > I'd love that OK, here are

Re: PDP 11/03

On 2015-11-10 00:05, Noel Chiappa wrote: > From: Johnny Billquist > I doubt the -YA makes any significant difference here. > ... > Note that a -YA normally means it's just a board with a newer revision. > It do not normally means any change in functionality, except

Re: PDP 11/03

On 2015-11-09 23:05, Noel Chiappa wrote: > From: Henk Gooijen > As far as my limited PDP-11 knowledge goes, none of them used > handshake. I'm pretty sure this is true of all the ones that had a hardwired serial console - it's definitely true of the 11/23 and J11 chip ones (/73,

Re: PDP 8E Panel Paint Chipping - How to seal edges

On 11/9/15 3:04 PM, rod wrote: 2. Screen Print first holes second. That was clearly the case on the panel that I sent scans of to you and I mentioned that they had milled off some of the white lines around the cutouts for the paddle switches.

Re: PDP 11/03

On 11/9/2015 1:48 PM, Noel Chiappa wrote: > From: Jim Stephensn >> "extra wires to bring out clock & .. 110/300 speed change" > I am mainly asking if I want to hook up a terminal, can I get it going > with TD, RD and GND (or 2 3 7 on a DB25), or do I need to loop back any

Re: IBM System/32 available

I've seen it, and it is for real. Looks complete except for missing paper rack on the back. Has keyswitch and band printer options. More details and a blog post with pictures to follow once I'm back home in front of a real computer. For now, I've posted a few pictures on my Twitter feed

Re: PDP 11/03

> From: Johnny Billquist > I doubt the -YA makes any significant difference here. > ... > Note that a -YA normally means it's just a board with a newer revision. > It do not normally means any change in functionality, except perhaps > some improvement. But in general

Re: PDP 8E Panel Paint Chipping - How to seal edges

The cause of my panel chipping is very much finger contact at the edge of the cut panel. There is the decay starting at the edge above all the switches and it is worse above the "deposit" switch. The rest of the panel other than these edges seems properly intact, but I am worried about sealing

Re: scrounging at recyclers

+1 with Marc. Sounds like a 21MX of some flavor. It will have two prominent card-edge connectors side-by-side around mid-board that connect to memory and I/O busses that run "up" from the PCB-face. On Sun, Nov 8, 2015 at 3:21 PM, Marc Verdiell wrote: > > Cindy Croxton

Re: PDP 11/03

On 11/9/2015 4:42 PM, jwsmobile wrote: On 11/9/2015 1:48 PM, Noel Chiappa wrote: > From: Jim Stephensn >> "extra wires to bring out clock & .. 110/300 speed change" > I am mainly asking if I want to hook up a terminal, can I get it going > with TD, RD and GND (or 2 3