test-drb November 2014

test-drb@ccmp.vtda.org

200 participants
279 discussions

by jnc＠mercury.lcs.mit.edu

> From: Al Kossow > It's pretty much just the odd manual from here and there that I'm > adding now. Speaking of which, is there by any chance a master list somewhere of stuff you're looking for? Or if Manx says 'not available online', can I take that to the bank? (Although identifying missing things that way's kind of tedious - one has to type each document's ID into Google to see if it's available.) Because I just bought a big stack of stuff, and perhaps some of it is stuff that's not available online - if so, I'd be happy to scan any such. Noel

9 years, 6 months

pdp11/93 DB9 rs232 pinout

by jnc＠mercury.lcs.mit.edu

> From: Johnny Billquist >> (.. the page in the 11/94 User Guide .. pg. 1-4 - is missing from >> all the online copies of that manual which I checked.) >> ... >> the pinout on the board is given in the KDJ11-E User's Guide >> (EK-KDJ1E-UG-001, available online) > PDP-11/9x manuals are not scarce at all. Where do you people search??? > 11/93: > http://bitsavers.trailing-edge.com/pdf/dec/pdp11/1193/EK-KDJ1E-UG-001_KDJ11… > 11/94: > http://bitsavers.trailing-edge.com/pdf/dec/pdp11/1194/EK-PDP94-MG-001_Sep90… If you actually read my message (the one you included in your reply), you will see that I referenced _both_ of those (the 94 'MG' document is fully titled the 'System User and Maintainence Guide' - I shorted that mouthful to make it less work to type), and indicated they were available online. And the '93' manual you list is not for the 93, but rather is for the KDJ11-E CPU card, which is used in _both_ the 93 and 94. (That document is also mostly duplicative of the 94-MG.) Needless to say, there's a lot more to those systems than the CPU card, although some of it (e.g. the power supplies) _may_ be documented separately; I haven't checked. Typical DEC systems have a lot of other documents, none of which seem to be available online for the 93/94, including (typically): User Manual Technical Manual Maintainence Manual Field Maintainence Print Set Illustrated Parts Breakdown For the KDJ11-E there does seem to be the "KDJ11-E CPU System Maintenance Manual" (EK-403AA-MM-001), but that doesn't seem to be available online. The one 11/94 document I know of (the System User and Maintainence Guide) does reference the Field Maintainence Print Set for the 11/94 (MP-02637-01 - but according to Manx, that's not available online), and the IPB. So probably the other ones don't exist for the /94. I don't know which of these documents even exist for the /93, since I can't find a single 93-specific document - which might list what other /93 documents exist. Noel

9 years, 6 months

pdp11/93 DB9 rs232 pinout

by jnc＠mercury.lcs.mit.edu

> From: Roe Peterson > Can anyone point me at the pinouts for the KDJ11-E pdp11/93 DB9 rs232 > connectors for the extra 7 (simulated) DL11s? Alas, documentation on the 11/93-94 seems to be very scarce on the ground. (And, just for grins, the page in the 11/94 User Guide which has the section - 1.2.6 - which talks, however briefly, about that panel - pg. 1-4 - is missing >from all the online copies of that manual which I checked.) The only thing I can suggest is that if you actually have the cable, the pinout on the board is given in the KDJ11-E User's Guide (EK-KDJ1E-UG-001, available online), on pg. 88-91 (aka 2-13 to 2-16), and an ohm-meter and some time will give you the pinout of one of the DB9's - presumably they are all the same, from there. Noel

9 years, 6 months

XT keyboards (and missing decal)

by jules.richardson99＠gmail.com

Hi all, I've got a 5160 here with the XT keyboard - however it's got the 64/256K motherboard fitted (with the "early" Jan '86 EPROMs), and Wikipedia seems to claim that by the time the 64/256K boards came out the machines were shipped with 102-key keyboards (the XT flavor of the Model M, I assume). Anyone know if that's true, and so my system should technically have a "full size" keyboard, or was there a crossover period where systems with the newer boards shipped with the 83-key XT keyboards? Everything else about the machine suggests it was built sometime '86 (dates on the PSU, IC date codes on the expansion boards etc.), although it has a 20MB F/H IBM hard drive (rather than the H/H Seagates that I think the newer systems got). There's no ID info on the underside of the keyboard like there is on my Model M; I'm not sure if there should be. Also, I'm missing the silver keyboard decal - I believe these just said "IBM personal computer" like they did for the 5150, even though the 5160 case decal mentions XT. Does anyone have one they could pull from an otherwise-junk keyboard that they might be willing to part with? cheers Jules

9 years, 6 months

Kearney & Trecker Core memory, may be PDP8

by jws＠jwsss.com

I can't tell for sure, but this auction may be for PDP8 core board. KT-KEARNEY-TRECKER-ASSY-KT83-0933-KT84-020-SYSTEM-BOARD http://www.ebay.com/itm/181565552717 board is 6 across in size. From what I could find out K&T used PDP8 for NC controlled machines at some time. There is also this sort of board. The silkscreen shows a Microprocessor section outlined with a 40 pin ceramic gold chip. I am going to query the vendor to get a picture where you can read what is on the can, or get the text on the can. Maybe the thing is a Harris part, don't know. Since the listing is for Giddings and Lewis, which is either a subsidiary or competitor of K&T it may be another completely different system. It looks like K&T, G&L and Cincinnati Millacron had a number of legal runnins as there were several lawsuits in the google hits when looking these boards up. CM used an OEM Microdata 1600, and later 3 generations of their own 1600 derived designs before moving on to other newer microprocessor scale parts. The CM 800, and 900 and one later are all 1600s, or near relatives os such. The 900 uses 8K, 16K microdata manufactured core boards, and also the Ampex / CDC 32k core board. I buy all those that show up cheap on the usual auction site. Here is the processor board: GIDDINGS-LEWIS-KT-KEARNEY-TRECKER-871-20410-05-SYSTEM-BOARD http://www.ebay.com/itm/181564464339 Jim

9 years, 6 months

pdp11/93 DB9 rs232 pinout

by roeapeterson＠gmail.com

Can anyone point me at the pinouts for the KDJ11-E pdp11/93 DB9 rs232 connectors for the extra 7 (simulated) DL11s? Thanks.

9 years, 6 months

pdp11/93 DB9 rs232 pinout

by jnc＠mercury.lcs.mit.edu

> From: Henk Gooijen > I wanted to connect a VT510 to the console port. All connectors are > DE-9 Really? The PDP-11/94-E User Guide (EK-PDP94-MG-001), available online in a number of places, shows (pg 46, aka 2-18) the Console/SLU panel, and the Console connector is much larger than the SLU connectors. (The illustration shows a 23-pin D-type connector - presumably an error, it should have been 25.) And here: http://www.pdp-11.nl/pdp11-93/rear-panel-small.jpg is a picture of one, and it indeed has the 25-pin console connector. Although I suppose it's possible they changed the actual hardware at some point, and some real machines have a 9-pin D-type? Or maybe a VAX of some sort uses a similar panel, but with all 9-pin D-types, and someone had stuck on of those on that machine? > What worked for me is the "VAX console cable", in other words: that > DE-9 connectors is NOT "PC alike"! You can find the VAX console cable > pinout on the web. Good catch! It makes sense that the VAX and 11/93-94 use the same 9-pin D-type pinout; that way they'd only have to have one kind of cable. Noel

9 years, 6 months

Seeking pdp-11/40, 45, 50, 55, or 70 front panel bezel

by dgriffi＠cs.csubak.edu

I have a pdp-11/70 front panel, but no bezel. Does anyone here have one? I understand that the 11/40, 11/45, 11/50, 11/55, and 11/70 had identical bezels. -- David Griffith dgriffi at cs.csubak.edu

9 years, 6 months

test

by jwest＠classiccmp.org

Sorry, testing myself.

9 years, 6 months

EAI Pace TA-10

by dave.g4ugm＠gmail.com

Folks, I have just bought one of these and it is behaving oddly. I think the PSU regulation is faulty. Does any one have a schematic of the PSU, or even just the regulator board. I think the US and UK actually have the same PSU as my UK version has 2 x 110 Volt primaries strapped in series. . Dave Wade G4UGM

9 years, 6 months

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test-drb November 2014