test-drb

test-drb@ccmp.vtda.org

101090 discussions

by michael.99.thompson＠gmail.com

> > Date: Mon, 17 Jun 2013 07:22:28 -0400 > Subject: Re: Five PDP-11 Questions > On 16 June 2013 21:35, Al Kossow <aek at bitsavers.org> wrote: > > I've used 28 or 30. 30 is more common, 28 doesn't break as easily. > > > > Thanks, I'll be sure to remember that! I need to buy a wrap tool, and > I wanted to know what the "correct" size is. > 30 AWG is for modern wire-wrap. 24 AWG is for older systems and controllers like the Classic PDP-8, PDP-9, TC01, TC02, TC58, and TC59. > Michael Thompson

12 years, 9 months

Decwriter power supply transistors R3004

by bknittel＠quarterbyte.com

Hi all, The LA-120 Decwriter that I got off Craigslist a couple of weeks ago has a dead H7150 power supply. Transistors Q1 and Q2 are open and shorted, respectively, and fusible resistor R4 is open. I'd guess that failure of Q2 led to the other two parts going. Q1 and Q2 are high voltage NPN power transistors in TO-3 cans, labeled __ 81 [ti logo] 41 (or maybe 4I but I'm guessing for a date code, 41) R3004 BRITAIN DEC part number appears to be 15-12782-00. The printset identifies them as "NPN 100W S1325 15". I can't find any substitution info online. There is a NOS pair for sale on eBay. So that's one option. Does anyone know what the modern equivalent(s) are? And what if you do, where did you find the reference? Thanks, Brian

12 years, 9 months

GE Canada needs PDP-11 programmer

by cclist＠sydex.com

I spotted this one on Erik's VC Forum: http://www.vintage-computer.com/vcforum/showthread.php?37827-Greetings-from… --Chuck

12 years, 9 months

Cray Exhibit in Chippewa Falls WI

by mc68010＠gmail.com

This was just posted to the rescue list and I am not sure it has been mentioned here before but, they have a nice Cray setup If someone is around to turn on the lights for you anyway. Some actual museum should try and grab this gear. http://www.flickr.com/photos/shatle/sets/72157634133969978/

12 years, 9 months

Dropping offline for a bit.

by dm561＠torfree.net

----- Original Message ----- > Date: Mon, 17 Jun 2013 09:57:22 -0400 > From: Dave Woyciesjes <woyciesjes at sbcglobal.net> > Dave McGuire <mcguire at neurotica.com> wrote: >>I'll be back when my stress level drops a bit, or when the jerks leave, >>and when there's something to talk about. > I, for one, will miss your input. Come back soon. I wouldn't worry; I don't think he'll be gone long ;-) For the record, despite his intolerance I like Dave (and have expressed that privately), appreciate the contributions he makes to the list and the hobby, and even enjoy following many of the OT threads on this list and the insight they give into different peoples' attitudes and perceptions in this particular niche of social networking (at least until they become utterly boring and repetitive and/or downright nasty). It's unfortunate that my coming to the defence of people like myself who apparently "suck" and posting those *amusing* statistics and congratulating him on being the clear winner in the post sweepstakes (emphasis on 'amusing') was seen by him and others as an "attack" and just provoked insults and counterattacks, with Dave taking his ball and sulking in the corner. But if it results in fewer banal, confrontational and same-old-same-old posts on the list and less stress for Dave and more time to spend on his more pressing matters, then that's a good result all around. Meanwhile, let's all lighten up.

12 years, 9 months

Decwriter power supply transistors R3004

by brian＠quarterbyte.com

> The printset identifies them as "NPN 100W S1325 15". Aha - SI = Silicon, and so on. I vaguely remember that thread now. > So I guess you're looking for a silicon NPN transistor with 100W > max power dissipation, a Vceo of 325V or better, and an hFE about > 15 (and the right pinout!). Tony or one of the other PSU gurus can > probably suggest something that'll do the job? Likely candidates might be (from parametric search on newark.com): BUX80, BUY69A, 2N6308, 2N6547, then. Anyone know of any contraindications for any of these? I'll see what Al Lasher's Electronics in Berkeley has on hand before I shop the interwebs.

12 years, 9 months

TI 1500S photos

by derschjo＠gmail.com

I picked up a pair of later-model TI-1500 workstations (a 1505 and 1507) nearly a year ago, and I meant to post these photos at the time but never gotaround to it. Was reminded of them while cleaning up some old photos on my camera. Just in case anyone's curious, here's what the inside of one of these looks like. https://plus.google.com/u/0/photos/117997069161125071032/albums/58902360564… If anyone wants more detailed photos, let me know and I'll see what I can do. (Still searchingfor software...) - Josh

12 years, 9 months

Underwear recommendations?

by derschjo＠gmail.com

Hi -- Since this is the ccTALK list, and I can therefore post about whatever I want (per Dave), Iwas wondering what kind of underwear y'all prefer? Personally, I prefer tighty-whiteys, but I'm afraid they might not be trendy enough. Thanks, Jsoh

12 years, 9 months

Dropping offline for a bit.

by mcguire＠neurotica.com

The jerk factor on this list has become so high of late, and the clue factor so low, that I will take a respite for a bit. It seems I can no longer resist the attempts by jerks to get a rise out of me. Actually, I should say the "rise-able" people here in general, as I don't feel singled out, except by Mike Stein this morning...I'm just a bit more "rise-able" than I should be. But either way, for that I apologize. I'll be back when my stress level drops a bit, or when the jerks leave, and when there's something to talk about. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

12 years, 9 months

Full sized Altair replica

by terry＠webweavers.co.nz

I'm assuming everyone is aware of this? http://altairclone.com/ Terry (Tez)

12 years, 9 months

Amusing statistic

by dm561＠torfree.net

----- Original Message ----- > Date: Sun, 16 Jun 2013 16:54:53 -0500 (CDT) > From: Tothwolf <tothwolf at concentric.net> >> On Sun, 16 Jun 2013, MikeS wrote: ... >> It just seems that seven or eight people have 'taken over' the list as a >> forum for their often lengthy and OT opinions and arguments, while I see >> familiar people with much to contribute leaving and appearing on other >> lists instead and citing the above 'noise' as the reason (not to mention >> the folks still here begging them to keep it down and on topic). >> >> A shame IMO. > > Oh no you don't. > > I've been here long enough to have witnessed first hand that no matter > -what- computer-related topic comes up, /someone/ on the list is going to > take offense to the topic under discussion. ----- Reply: ----- I don't know where you get the idea that I (and Josh) are *offended* by anything; the only person who seems to be offended is Dave... Being called a moron and a jerk and being told that I suck because I don't see anything necessarily wrong with scrapping a system for parts could certainly be considered rude and offensive, but that really just reflects on the name-callers' character and maturity. There's no question that pretty well everyone on this list has things to contribute, including and sometimes especially Dave and the above-mentioned high posters; what I (and, I think, Josh) are suggesting is that the noise level gets pretty high sometimes and that perhaps the relatively few people creating most of the noise might take a moment to think whether that opinion, argument, whatever, is really worth the bandwidth and time to post, not to mention the replies that it will provoke. But predictably, it's just like asking the neighbours to please keep the noise down a bit; the usual reply is a hostile "go f$%k yourself" and the noise gets cranked up even more. I still think that it's a shame when the noise drives valuable people to other, friendlier, lists with higher S/N ratios; they don't seem to be missed by anyone else here and I'm on those lists as well, so no problem I guess. IMO, other than for HP and DEC issues CCtalk is becoming less and less relevant to many members of the community, but perhaps that's as it should be... So, no, I'm not offended; I'm also subscribed to CCtech so I can choose to just read the 'edited' version, or even unsubscribe altogether if I do get too annoyed or even "offended." Back to our regular programming... m

12 years, 9 months

Amusing statistic

by dm561＠torfree.net

----- Original Message ----- > Date: Sun, 16 Jun 2013 22:30:40 +0200 > From: Pontus <pontus at update.uu.se> > MikeS: You seem to have quite a bit of time yourself, counting all those > mail.... Well, yes I did (it was a Saturday), but it didn't take very long, even on a 486 running DOS; I was curious, it was a fun quickie program to write and I thought maybe someone else on the list would be amused as I was; unfortunately, and perhaps predictably, Dave was not amused by being the #1 poster and saw it as an "attack" instead. Year to date is even more impressive: 513 posts with the third place entry a paltry 285; surprisingly, Fred is #2 with 335, but his are usually short and funny.

12 years, 9 months

Dropping offline for a bit.

by dm561＠torfree.net

----- Original Message ----- > Date: Sun, 16 Jun 2013 16:44:13 -0400 > From: Dave McGuire <mcguire at neurotica.com> > I'll be back when my stress level drops a bit, or when the jerks leave, > and > when there's something to talk about. You're only going to post when there's actually something to talk about ??? Who could ask for more! ;-) Definitely, get that stress level down; it's bad for your health! Best wishes, m

12 years, 9 months

Imlac board photos

by derschjo＠gmail.com

*also* meant toshare these. Scanned in all of the boards in my Imlac PDS-1D for reference purposes, since there are very few of these out there (and schematics, but no PCB layouts.) https://plus.google.com/u/0/photos/117997069161125071032/albums/58762337385… I have high-res(600 dpi) scans if anyone wants them. Sure, it's overkill but why not... - Josh

12 years, 9 months

Amusing statistic

by dm561＠torfree.net

Date: Sun, 16 Jun 2013 00:20:34 -0400 (EDT) From: Mouse <mouse at Rodents-Montreal.ORG> > I don't consider time spent discussing the hobby to be wasted. If you do, > as your wording seems to imply, I have to wonder, why are you here? For the occasional post that is actually related to 'Classic Computers', as opposed to the endless kvetching about (other) people, 'PeeCees', M$ etc., recurring intolerant arguments about the 'best' way to do anything, vanity posts from folks who think we're interested in their opinions about just about everything, etc. It just seems that seven or eight people have 'taken over' the list as a forum for their often lengthy and OT opinions and arguments, while I see familiar people with much to contribute leaving and appearing on other lists instead and citing the above 'noise' as the reason (not to mention the folks still here begging them to keep it down and on topic). A shame IMO. m

12 years, 9 months

Tally 2000 printer free for pickup

by jdbryan＠acm.org

I am the original owner of a Tally 2000 line printer that is free for pickup in the Baltimore, MD (USA) area. The printer has a 128 character set, a parallel differential interface, and was in regular use with an HP 1000 minicomputer from 1977 until it was decommissioned in 1994. Since then, it has been stored in a heated and air conditioned office pending refurbishing, which I no longer have the time to perform. At decommissioning, the printer was operational but was beginning to substitute characters, probably due to an error in the logic of one of the character data lines. The HP 2607 was a rebadged Tally 2000. The printer is complete with a stand, wire paper basket, and operator and service manuals. Weight is approximately 150 pounds. Due to an office move, it must go by June 29th or it will be scrapped. The operator's manual is online here: http://www.hpmuseum.net/document.php?hwfile=4090 I'd prefer to see it go to a good home rather than being pushed off our dock into the dumpster. If you're interested in picking this unit up, please contact me at <jdbryan at acm.org>. -- Dave

12 years, 9 months

IBM 5150 or 5170 reference PDFs?

by brain＠jbrain.com

I'm trying to add XT KB support to a project here, and I am having trouble sorting out a few scan codes. A response over at the VC Forum notes I should grab these two references, so I am wondering if anyone has a link or soft copy. I created my PS2/XT mapping using this matrix: http://ilkerf.tripod.com/c64tower/F_Keyboard_FAQ.html#KEYBOARDFAQ_037 And that matches up with ChukG's AT2XT project, except for '\' (the link has it as decimal 29, Chuck's project has it at 42, and he has 0x61 PS/2 code mapped to decimal 45 XT code. I don't know either of those codes. But, that mapping does not match up with most of the maps on the net. Jim -- Jim Brain brain at jbrain.com www.jbrain.com

12 years, 9 months

Decwriter power supply transistors R3004

by brian＠quarterbyte.com

Hi all, The LA-120 Decwriter that I got off Craigslist a couple of weeks ago has a dead H7150 power supply. Transistors Q1 and Q2 are open and shorted, respectively, and fusible resistor R4 is open. I'd guess that the failure of Q2 took out the other two parts. Q1 and Q2 are high voltage NPN power transistors in TO-3 cans, labeled __ 81 [ti logo] 41 (or maybe 4I, no matter, it's a date code) R3004 BRITAIN The DEC part number is 15-12782-00. The printset identifies them as "NPN 100W S1325 15". I can't find any substitutions online for either R3004 or S1325. (Or 15-12782-00 for that matter). There is a NOS pair for sale on eBay. So that's one option. Does anyone know what the modern equivalent(s) are? And what if you do, where did you find the reference? Thanks, Brian

12 years, 9 months

Play ID the DEC boards on ebay

by mc68010＠gmail.com

What's the board with the J-11 cpu ? Anyone recognize any of that stuff ? Terrible pics. http://www.ebay.com/itm/12lbs-vintage-computer-boards-With-14-gold-ic-chips…

12 years, 9 months

MS-DOS/MSCDEX wierdness

by pete＠dunnington.plus.com

I have a PC used (or at least intended) for floppy transfers, which has a hard drive booting MS-DOS 6.22, with an 80-track 5.25" drive and a 3.5" drive connected to a WDAT-240 controller. It has the MS-DOS network stuff installed so I can connect to a shared network drive. It's also got a CDROM drive on its second IDE bus, and the corresponding lines for the driver and MSCDEX are in CONFIG.SYS and AUTOEXEC.BAT. Most of the drivers etc are loaded in high memory (I ran MEMMAKER in the dim and distant past). At the moment, those two lines are commented out because if they're not, the floppies don't work properly. Has anyone got any idea why? The CDROM works fine if I uncomment those lines (but the floppies don't) and network shares work fine either way. -- Pete Peter Turnbull Network Manager University of York

12 years, 9 months

People suck++

by dm561＠torfree.net

----- Original Message ----- Date: Sat, 15 Jun 2013 21:30:25 -0400 From: Dave McGuire <mcguire at neurotica.com> > But like I said, I type fast. Nine seconds on this one. And you know > what? I'll make my money anyway. > Will you? I'm doing OK; *you're* the one who doesn't have an extra $200 to spare or you'd "have scored that auction in a heartbeat"... Sorry to hear it, really; hope you manage to put a little aside for the next time. > Moron. Ah, the usual name-calling... you are predictable, I'll say that; even funny sometimes ;-). 'nuff said; have a nice weekend! m

12 years, 9 months

Dropping offline for a bit.

by BHuntsman＠mail2.cu-portland.edu

Well, I for one enjoy that you consistently add value, so don't drop off for too long. Also, while you're off the main list, don't forget about that 3B2, and let me know if you catch wind of a 3290... :) hehe. Thanks much, as always! -Ben ________________________________________ From: cctalk-bounces at classiccmp.org [cctalk-bounces at classiccmp.org] on behalf of Dave McGuire [mcguire at neurotica.com] Sent: Sunday, June 16, 2013 1:44 PM To: On-Topic and Off-Topic Posts Subject: Dropping offline for a bit. The jerk factor on this list has become so high of late, and the clue factor so low, that I will take a respite for a bit. It seems I can no longer resist the attempts by jerks to get a rise out of me. Actually, I should say the "rise-able" people here in general, as I don't feel singled out, except by Mike Stein this morning...I'm just a bit more "rise-able" than I should be. But either way, for that I apologize. I'll be back when my stress level drops a bit, or when the jerks leave, and when there's something to talk about. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

12 years, 9 months

Amusing statistic

by dm561＠torfree.net

I was curious... Out of 143 people who posted to the list in the first half of June, 116 posted 5 times or less. On the other hand, only 9 people (and we know who they are ;-) are responsible for half (462) of the total 923 posts, with Dave easily the winner... Must be nice to have so much time to waste...

12 years, 9 months

IBM 5150 or 5170 reference PDFs?

by jce＠seasip.demon.co.uk

There are a number of problems with describing scancodes unambiguously, particularly when it comes to the backslash. Depending on the layout, it could be found at: Scancode in set | 1 | 2 | 3 | --------------------------------------------------+----+----+----+ * The key above "Tab" | 29 | 0E | 0E | * The key between "=" and "Backspace" | 7D | 6A | 5D | * The key below "Backspace" and above "Return" | 2B | 5D | 5C | * The key to the left of "Return" | 2B | 5D | 53 | * The key between "Left Shift" and "Z" | 56 | 61 | 13 | --------------------------------------------------+----+----+----+ An 84-key AT keyboard will return the Set 3 codes for these positions. -- John Elliott

12 years, 9 months

[cctalk] People suck++ (was:Play ID the DEC boards on ebay)

by dm561＠torfree.net

----- Original Message ----- > > Date: Sun, 16 Jun 2013 11:10:47 -0500 > From: John Foust <jfoust at threedee.com> > If it's difficult to ship the larger item, and easy to disassemble, > and there's a market for the parts, and it's easier to ship the parts, > and you have too much time on your hands and don't value your time, > then why not part it out? You can tell someone you got a sum total > of $300 for all the pieces when they assured you you'd only get $100 > for the original. Of course. Unless it's a 'real' classic like the Apple I, most of the time just a few parts will sell more easily and for more money than the system they came out of, especially with today's shipping costs and hassle, so from a financial perspective it makes a lot of sense to part out. Even from the hobbyist perspective it make sense to make parts available; often scrapping one machine will yield the parts to get three or four other machines running again. And of course the very people who condemn folks for breaking systems down for parts are often the first to snap up those parts when they need them... m

12 years, 9 months

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