Re: KDF 8189 processor board foobared (ebay warning)

> From: Jim Stephens > The fellow responded and as I had suspected had never seen anything > this old before and had thought that the parts were separable. > ... > Also he is going to hopefully share photos of the entire pile and I'll > try to help him market the parts in

KL10 backplane on eBay

Another eBait wonder: http://www.ebay.com/itm/182597510806 The listing says "Local pick-up only", and it's in Denver, Colorado. Someone should really save this (although the chances of finding all the boards to go with it is pretty slim). Noel

Re: FTGH clear-out at Mesa Electronics, Richmond, CA, USA

> From: Anders Nelson > Heavens, why are the bit positions in descending order right to left in > that PCM-12? Numbering bits in descending order from right to left (AKA increasing order from left to right) used to be the standard - IBM S/360, PDP-10, etc, etc all did it that way.

Re: BBS software for the PDP 11

> From: Christian Corti > I have a similar setup with our 11/34. .. It's not the fastest system, > and the kernel uses overlays like crazy ;-) ... I still have to add the > cache and FPP boards and see how that improves the performance. The cache should help some, but the FPP,

Re: BBS software for the PDP 11

> From: Chuck Guzis > Well, okay--but then let's be period-correct. The PDP-11 dates from > 1970, when, AFAIK, BBSes, if they existed, were far from what people > think they were. You're thinking of the -11/20, released in 1970. But that was only the first PDP-11 model; the

Re: FTGH clear-out at Mesa Electronics, Richmond, CA, USA

> From: Paul Koning > For some definition of "standard". ... other machines of that time or earlier > numbered bits according to the power of 2 they represent, i.e., the "current > standard". Well, the vast majority of computers 'back then' numbered bits (and byes) from left to

Re: RK11-D print set

> From: Marc Howard > Although I can find the RK11D users manual on the web there doesn't > appear to be print set (schematics) out there. Does this exist > somewhere under a non-obvious name? ??? I just did a quick Google for 'RK11-D" (note quotes), and it turned up:

G-series Flip Chips for trade

So I have some G-series Flip Chips that I don't have a use for, and I hope someone out there does. If so, I'd like to trade them for something I _do_ have a use for - e.g. M-series FCs. Alas, according to the "Spare Module Handbook", these seem to be pretty exotic, but maybe I'll luck out. They

Re: Need captive panel screw for unibus mounting

> From: Marc Howard > I need (1) of the 8/32 x 1 3/8 captive screws that are at either end of > a unibus backplane to mount it to the chassis. You don't _have_ to use the special captive screws - quite a few of the backplanes I've got were mounted with ordinary screws. Noel

Re: More Executel phone system news

> From: Adrian Graham > Completely by chance one of the programme managers for STC at the time > found all my postings ... in a last ditch attempt to give his stash of > goodies away before he put them all in the local recycling. > This means that not only do I now have two

Re: RC11 manuals / schematics online?

> From: Steven Malikoff > I acquired an RC11 flip chip set Do you mean literally this (just the cards), or did you mean a complete RC11 (including the backplane)? The Flip Chips do turn up (the ones I put up a post about a few days back are RC11 chips), but the backplanes are rara aves

Re: gobs of stuff today from recovering a unit of mine.

> From: Toby Thain > And a lot is as-new or perfectly okay. Ditto that. Both my ADF A4 page scanner and my A3 scanner (a professional grade Epson) came off eBay (the latter for a minimal amount of money - that pro scanner is a multi-$K unit, for which I think I paid the princely sum of

Re: Vaxstation 3100 of odd sort on epay

> From: Jim Stephens > I'm interested in whether this is a wound down or ongoing Dec material > operation, or the operation of an e waste recycler. > Vendor name on ebay is EFI. May have other aliases. Oh, Efi! All hardened DEC collectors know about Efi (well, many of us do :-).

Re: DEC H9xx rack parts needed

> does anyone have any spare "pivot bushings" for the DEC H9xx series > cabinets (H950, H960, etc)? (These are the short pieces with a conical > top which fit over the hinge pins, at the bottom.) > ... > I could also use some more of the pins (particularly the kind with the

Re: HP 9845 complete system on auction in Sweden

On Fri, Sep 22, 2017 at 7:14 AM, Torfinn Ingolfsen wrote: > Unfortunately, I don't have space for such a large system. I hope someone can take this system, to prevent its being scapped! Noel

DEC H9xx rack parts needed

Hi, does anyone have any spare "pivot bushings" for the DEC H9xx series cabinets (H950, H960, etc)? (These are the short pieces with a conical top which fit over the hinge pins, at the bottom.) I need at least one to hang a back door which I have. If nobody has any, they'd be easy to machine, so

Re: 40pin Berg connectors, the DEC alphabet, and pin numbering

> From: Charles Dickman > Is pin AA == pin 1 or pin 40 ? > ... > Did DEC have an accepted mapping between the alphabet and numbers? http://gunkies.org/wiki/DEC_asynchronous_serial_line_pinout Noel

Re: TU58 Serial port address

> From: systems_glitch > get a DLV11 and set it up as SLU0 for TU58 I think you meant SLU1, no? That's the standard for the TU58 (SLU0 is the console). Noel

Re: Aaron Nabil & pdp-8.org

> From: Vincent Slyngstad > Aaron's website seems to be working for me Anyone who still has access to it should down-load the entire thing promptly. Noel

Re: TU58 Serial port address

> From: Rod Smallwood > I do not know the correct addresses or vectors I need so I can't set > them. > ... > State like this for each and every jumper required Sorry, too busy to type all that out. Jumper it for 776500/300. Noel

Re: What's the matter with kids today (Was: The origin of the phrases

> From: Jack Harper > I HATE and LOATHE bloatware - e.g., so much MicroSoft stuff. Some of us consider contemporary Linux/etc bloatware. Noel

Re: Computers before Information Theory

> From: Brent Hilpert > I have wondered just how much influence the latent theory that was > around influenced the practical implementors of calculating machinery > ... > My impression is the implementors at the time arrived at stored-program > machines far more out of

Re: M8195 SLU died while in use

> From: Aaron Jackson > a PDP-11/73, M8192 CPU, two M8067 RAM, M7195 ... While playing in ODT, > the console completely stopped responding. > ... > The CPU shows 1000, which I believe is fine, and means it's in ODT. The > SLU card has . I've had a Google and I believe

Re: Manx?

> From: Rob Jarratt > I have just tried accessing Manx at manx-docs.org, but it seems to have > disappeared. Anyone know what has happened to it? It moved. Now at: https://vt100.net/manx/ Noel

Re: M7195 SLU issue might actually be 12v rail

> From: Aaron Jackson > This is an 11/23+ chassis and the power supply seems very large, but > reasonably easy to trace. I thought I'd ask first if anyone has any > tips on how to debug this Err, exactly which power supply is this - an H786, or an H7861? If so, there are prints

Re: M7195 SLU issue might actually be 12v rail

> DEC also has excellent 'Technical Manuals' for both, which clearly > explain how the circuitry works (although alas, the BA11-N Tech Manual > is not [yet] online Argh, my memory is failing me. The BA11-S technical info is in the "PDP-11/23B Mounting Box Technical Manual",

Re: M8195 SLU died while in use

> one option ... is to buy spare boards so you can board-swap to localize > the problem to one board. > ... > start with another serial card Also, if you get a working serial card to use for a console, and you get a working system as a result, you can then use that ensenble to try

Re: PDP 8e green / lab version rack Ebay

> From: Anders Nelson > This is crazy, how is this auction not at $5k already at least? "Patience, grasshopper"! :-) With these big-budget, rare, items, the real action is always in the last few seconds. I remember a PDP-11/40 that went from, like $2K (don't recall the exact number,

Re: IEEE publishes "In Search of the Original Fortran Compiler" - Paul McJones

> From: Tim Shoppa > IEEE Annals of the History of Computing just published (in past few > months) Paul McJones article "In Search of the Original Fortran Compiler". Congratulations to Paul and everyone who helped in this magnificant effort. To bad they couldn't find a copy of the

Re: Champaign, IL to Iowa City, Iowa and back trip

> On Aug 19, 2017, at 11:08 AM, Jon Elson wrote: > Currently $676, but I suspect will go higher. _Much_ higher. The TU56 alone is worth several US$K. I'd look for the whole thing to go for _at least_ US$3K. Noel

Anyone need an M7389 card (for an LA30)?

Hi, all, just got one of these in a group of stuff, and I have no LA30, and thus no need for it. Anyone out there have an LA30? :-) Noel

Re: DEC ll/03 in 22 bit backplane

> From: Jerry Weiss > The processor will probably halt due to non-existent memory address. No, it'll take a NXM trap (through 4); what happens then depends on what the trap handler is set to - if anything. > However, a P entered in ODT will attempt to continue the bootstrap. See

Re: Aaron Nabil & pdp-8.org

> From: Tomasz Rolak >> Anyone who still has access to it should down-load the entire thing promptly. > I am > wget -r -np -nc -U lynx -w 2 -l 0 http://pdp-8.org/ > right now. Did you get it all? Anyone else download it? Noel

Hallicrafters S-85

So I have a Hallicrafters S-85 receiver which was my wife's father's, and just arrived (he passed away, and they are cleaning out his basement): http://ana-3.lcs.mit.edu/~jnc/jpg/tech/HallicraftersF.jpg http://ana-3.lcs.mit.edu/~jnc/jpg/tech/HallicraftersB.jpg I'm not into radios at all, so

Re: Hallicrafters S-85

> From: sandy hamlet > There are a couple of ham radio sites that you could post on. > ... > You probably don't want to ship the SX101 as it it is quite heavy. I don't think he wants to get rid of his, he was enquiring about getting one more (from me). :-) The unit has been

DEC indicator panel 'light shield'

So Dave Bridgham and I are continuing to make (slow) progress with the QSIC and indicator panel project; the latest step was to find some LEDs which look much more like the original lights: http://pdp10.froghouse.org/qsic/new-led.jpg So now I'm trying to make up a prototype 'light shield' (the

Re: DR-DOS

> From: Liam Proven > TCP/IP basically postdates the MS-DOS era, in PC terms, and it's Bloaty > McBloatface. This must be a uSloth TCP/IP you are speaking of. There's the one from FTP software which was based on the one done at MIT which was freeware. That one was definitely DOS-era

Re: Slightly OT: Computer internals book recommendations

> From: Eric Christopherson > I have an inside scoop that a certain library is about to get rid of > their 2003 printing (which is apparently 1st edition) ABE seems to have copies for around US$10:

Re: Microassembler, etc, available

On 11/28/17 13:27, emanuel stiebler via cctalk wrote: > Dave has a KV10 already in verilog, so why not port it to the uengine? Well, the uengine would have to be considerably modified before it could be used for a PDP-10 (e.g. wider data-paths); this version is very specialized to the SD

Re: RL02 to PC image

> From: Jonathan (Systems Glitch) > the vtserver `rx` driver has a bug in it anyway where it continues > reading past the end of the media I'll be working with the RX driver for the standalone stuff soon on a project of my own, I'll look into this then. BTW, 'VTserver' refers to

Re: RX02 Difficulties

> My copy of of the V7 standalone stuff (which I got from the VTServer > directory) didn't include an RX driver. Where'd you manage to find one? So, thanks to a tip (thanks, Jerry! :-), the source has been found: https://github.com/chapmajs/vtserver/tree/master/pdpvtstand

Re: RX02 Difficulties

> From: Aaron Jackson > It was the disks after all. Well, I'm glad you got it working. Where'd you get a good floppy? Noel

Re: eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

> From: Guy Sotomayor Jr > I *really* want them and I'm within an hour (usually) of where they > are. The problem is that right now I'm on a business trip until the end > of the month and he needs this gone prior to 12/31. Why don't you reach out to the person and tell them you

Re: 11/04 Project

> From: William Degnan > 1) the console rom does not go in any of the 4 bootstrap slots, these > should be empty for now. There is a special console rom slot. Just to clarify, by "slot", you don't mean 'backplane slot', you mean 'socket (on the card)', right? Also, note that the

Re: 11/04 Project

> From: John Welch > CLR > 765000 > LAD > EXAM > 'Bus Err' light comes on. Oooh, that's very interesting, and illuminative. The ROM isn't working (so there's no way for the software console to work - its code is in that ROM). So look at Section 1.5 of the Technical

Re: eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

> From: Steven Malikoff > they mention it will be scrapped if no takers. Don't be misled by the .au URL; the units are in Sacramento, CA. Anyone in the Bay area up for saving these? Noel

Re: 11/04 Project

> From: John Welch > Anyway, 'a' comes over as 000141 and 'A' comes over as 000101. Good, the console is working. > CLR > LAD > DEP OK, that loads a '0' (halt) in 0. > CNTRL+INIT > CNTRL+START -> reads 02 OK, so it reads the HALT at 0 and stops. >

DEC indicator panel mounting details

So, Dave and I are getting to the point where we're about to start mounting up our indicator panels, but we're not sure what some of the mechanical details (below) are. Could someone who has one please take a look and let us know (or, even better, send us photos)? It appears that the bezel and

Re: DEC indicator panel mounting details

> From: Josh Dersch > See the pictures at the below link: ... > Hope this is the right assembly for you Yes, those are _exactly_ what we're looking for. Thanks very much for taking the time to take those! Noel

Re: 11/04 Project

> From: John Welch > Any thoughts? Concur 100% with Henk's comments. There is a manual online for the M9312: http://bitsavers.org/pdf/dec/unibus/M9312_TechRef.pdf which will tell you what the other start options are (Appendix C), but see page 3-1, too. Note especially the bit about

Re: RL02 Spinup fails

> From: Aaron Jackson > The RL02 technical manual says to figure out why a drive error > occurred, I can execute a get status command (?) and then perform an > MPR read (?). So while I don't know how to do that, RLV 12 User Guide, section 5.2. Noel

Re: Details about IBM's early 'scientific' computers

Please, everyone, I do actually know of BitSavers; you don't need to point me at it. When I said: >> I could look at the engineering manuals, but I was hoping for something >> in between them and Bashe et al. I assumed everyone would understand that by "engineering manuals", I was

Details about IBM's early 'scientific' computers

So, I was trying to find info about the early IBM 709/7090/7094 computers, but when I went to what is supposedly the authoritative work on these computers (among others): Charles J. Bashe, Lyle R. Johnson, John H. Palmer, Emerson W. Pugh, "IBM's Early Computers", MIT Press, Cambridge, 1986

Re: Ideas for a simple, but somewhat extendable computer bus

> From: Allison >> I would seriously consider shared data/address lines, like on the QBUS. > QBUS is wrapped around a subset of PDP11 and the unique processors made > to fit it. I did say "like ... the QBUS", not "the QBUS"! I was just trying to make the point that the original

Re: Ideas for a simple, but somewhat extendable computer bus

> From: Charles Anthony > a hybrid PDP-11 (16 bits) / PDP-15 (18 bits) on a shared bus (UNIBUS?) That's a UNICHANNEL-15: it allowed devices on the -11 to do DMA directly into the PDP-15's memory through the MX15-B Memory Multiplexer. Odd factoid: this UNIBUS could run in 18-bit mode

Re: Ideas for a simple, but somewhat extendable computer bus

> From: Allison > simple 16 data, 24 address likely 6 lines for basic control plus others > your up to 50+ lines I would seriously consider shared data/address lines, like on the QBUS. It doesn't add _that_ much complexity to share the lines (I did a slave device using only 74xxx

Re: Slightly OT: Computer internals book recommendations

> From: Sophie Haskins > earlier editions of "Computer Systems: A Programmers Perspective" had a > bunch of discussions of buses etc .. but the edition I have explicitly > calls out that they felt like it wasn't important to have chapters on > anymore :( Well, that might not

Re: LA30 parts and question

> From: Fritz Mueller > Overall, I have been pretty amazed by the sheer number of machined > parts, castings, high quality bearings, etc. within this beast. Lots of > stainless steel throughout. Sure wouldn't find anything built this way > these days! What a tank. That's DEC

Re: Computing Pioneer Dies

> From: Evan Koblentz > That's the dumbest thing I read today. And that helped... how? Noel

Re: Details about IBM's early 'scientific' computers

> From: Ben Franchuk > Multics never really made it out of the lab. This 'bogo-meme' (to use a word I coined) is, well, totally flat wrong. Multics was a reasonably successful product for Honeywell from the end of 1972 (when the H6180 was introduced) to around 1987 (when they stopped

Re: Computing Pioneer Dies

> From: Dave Wade > ENIAC had been configured in stored program mode earlier in the year > and had run a program stored in the function switches, e.g. ROM > ... > Despite the fact that when running stored programs ENIAC's parallel > processing features were not available,

Re: Computing Pioneer Dies

> From: Brent Hilpert > What about that little issue of writeable program storage? Just to clarify my understanding of your position, is a system with a CPU chip (say one of the 68K models) with only ROM not a 'stored program machine'? Noel PS: You really should look at the

Re: PDP-8 chassis on eBay

So if someone's building an earlier -8 from bits and pieces, here: https://www.ebay.com/itm/192350321318 is something they might find useful - an empty chassis. (I'm not associated with the seller, although I've bought stuff from them before. They have some other PDP-8 stuff listed, too.)

Re: "Left a home full of computers" Craigslist ad

> From: Peter Cetinski >> I was left a home with all of its contents tons of electronics and >> computers, call if you want me to send pics > FWIW, I received some pics of these items. So, what else was there (that you don't mind telling us about because you're not grabbing

PDP-8 chassis on eBay

So if someone's building an earlier -8 from bits and pieces, here: https://www.ebay.com/itm/192350321318 is something they might find useful - an empty chassis. (I'm not associated with the seller, although I've bought stuff from them before. They have some other PDP-8 stuff listed, too.)

Re: H7861 PSU issues

> From: Rob Jarratt > when I replaced it and powered on there was a big bang What went 'bang'? (I assume if there was a loud noise, it mus have left visible damage somewhere.) Noel

Re: PDP-8 chassis on eBay

> From: Dave > I managed to snag the chassis and what I hope is the matching cover. No, that cover is for a paper-tape reader. Noel

Re: H7861 PSU issues

> From: Aaron Jackson > Picked up a few 555s and sockets and now it works! Congratulations! It's odd that a 555 failed, but sometimes there's no rhyme or reason to what fails. E.g. I was fixing some broken M7859's (KY11-LB Programmer's Console), and on one of them a 7493 (4-bit counter)

Re: RX02 Difficulties

> From: Aaron Jackson > Most of the tests now look something like this: > ... > SECTOR ADDRESS ERROR > EXPECTED SECTOR=18. > TARGET SECTOR=17. I wonder if there's a problem with the floppy you are using? Remember, the RX0x drives can't hard reformat the floppies

Re: Revive 11/34

> From: John Welch > Can you give me a refresher on how to tell which slots are cut? I > remember having to turn the chassis over and looking for a particular > wire Yeah; you can use the G7273 as a 'crib', since it has the NPG jumper on it. That jumper goes from CA1 to CB1:

Re; Revive 11/34

> From: Henk Gooijen A few comments to you about Henk's points: > Standing in front of the 11/34 processor box (looking at the console), > slot number 1 is at the right side. That's for the 10-1/2" box; the 5-1/4" is different. Which is this? > Each slot has 6 positions.

Revive 11/34

> From: John Welch > Any suggestions as to what to try first? I would _definitely_ start by pulling _all_ the cards you can, to get down to the simplest possible configuration. Once that works, start adding things back in, one at a time. If that configuration doesn't work, first try

Re: RX02 Difficulties

> From: Aaron Jackson >> My copy of of the V7 standalone stuff (which I got from the VTServer >> directory) didn't include an RX driver. Where'd you manage to find one? > I am using the version from here: https://github.com/sethm/vtserver/ After offline discussion with Aaron, we

Re: Dec-10 Day announcement from Living Computers: Museum + Labs

> From: Ethan Dicks > I look forward to taking a stab at this. I suspect there are a number of people who'd be interested in MASSBUS storage devices (e.g. me - suddenly all those RH11's I've got are no longer boat- anchors :-). We should try and organize an group build, to share the

FTGH: Old ham radio headset

FTGH: http://ana-3.lcs.mit.edu/~jnc/jpg/tmp/HeadSet.jpg Noel

Re: Revive 11/34

> From: Henk Gooijen > the M7859 is sort of a UNIBUS device. The (front panel) console only > communicates with the M7859. Not quite; it does _mostly_ 'do its thing' over the UNIBUS, but there are also two special lines carried across the DD11-P backplane to the CPU, 'Halt Request'

Re: RX02 Difficulties

> Aaron Jackson > if I try to dump using vtserver using a floppy which passed the > diagnostics, it fails. My copy of of the V7 standalone stuff (which I got from the VTServer directory) didn't include an RX driver. Where'd you manage to find one? (I need one for my own use, plus I

Re: Which Dec Emulation is the MOST useful and Versatile?

> From: Kip Koon > f I were to have to decide on just one model DEC PDP system to run in a > DEC Emulator, which one would be the most useful, versatile and has the > most software available for it? To echo what others have said, when you say 'emulator', do you mean hardware (the

Re: Which Dec Emulation is the MOST useful and Versatile?

> From: Jon Elson > I'm not sure the original DEC PDP-10 (KA-10) used microcode No, it didn't; in part because it pre-dated fast, cheap ROMs (the development of which was a considerable task in the /360 project - the wonderful "IBM's 360 and Early 370 Systems" covers this is some

Re: DEC indicator panel mounting details

> From: Adrian Stoness > theres a 3d model for printing those brakets over on this site > http://so-much-stuff.com/pdp8/cad/3d.php http://www.classiccmp.org/pipermail/cctalk/2017-December/036544.html Noel

Re: DEC indicator panel mounting details

> From: Josh Dersch > the plastic "ball on post" brackets PS: Apparently the 'official' DEC name for the 'ball on post' plastic brackets is "latch molding". Not very descriptive/apt, alas. Noel

Re: Next 'stack' of computers to go, IBM p7's - not classics this time

> From: Pete Lancashire > NO PACKING OR SHIPPING, must be local pickup. Just a reminded to everyone; most PakMail franchises are prepared to go somewhere off-site, pick items up where they sit, and then pack them; I've used this service several times for 'pick up only' items.

Re: Next 'stack' of computers to go, IBM p7's - not classics this time

> From: Yvan Janssens > ... > I'm located at the other side of the planet. > Would PakMail work for that as well? Pakmail can _send_ to most countries (they can only do _pickups_ in the US and Canada, that I know of), but of course sending a large object a long way

Re: Next 'stack' of computers to go, IBM p7's - not classics this time

> From: Pete Lancashire > Pak Mail is not cheap Actually, since they buy 'in bulk' from carriers, they are surprisingly reasonable; their quote to ship an H960 rack from Arizona to me was less than I was quoted by some carriers. Noel

Looking for info on Motorola 4015 chip

Hey, all, the RK11-D contoller for the PDP-11 uses Motorola 4015 MSI chips on one of the boards (M7254), but I can't find out anything about them. Google didn't turn anything up, and the appendix in the RK11-D Maintenance Manual that has info about 'all' the MSI chips used in the RK11-D doesn't

Anyone need KB11-B FMPS?

So I've just realized that the KB11-B (the earlier -11/70 CPU, the KB11-C being the later) FMPS is not online; I couldn't find them (but then my Google-fu is notoriously weak, q.v. the Motorola 4015 - thanks all, BTW), but Manx also says: http://manx-docs.org/details.php/1,9214 they aren't

Re: Next 'stack' of computers to go, IBM p7's - not classics this time

> From: Mark Linimon > Would love to if you can change your mind on shipping? https://www.pakmail.com/ Like I said, they will come pick things up, as they sit - perfect for Pete's situation. And from my experience, not _always_ cheap, but _usually_ pretty good (e.g. a large PDP-11 in a

MS11 M8110/M8120 controller card differences

So I notice that M8120 controller card for the MS11 seems to share its etch with the earlier M8110 variant (the M8120 says "M8110" in the etch :-); so the differences must be component/configuration/ECO. Does anyone happen to know what the differences between the two are? Thanks! Noel

Re: MS11 M8110/M8120 controller card differences

> From: Bob Smith > 8110 for MOS memory, and 8120 for bipolar memory is what field guyde > list says. Well, the early bipolar MS11-C (1K boards) used the M8110 during early production (see e.g. DEC-11-HMSAA-D-D, pg. 1-1), and apparently then switched over to the M8120. I've only seen

Re: ISO: DECtape controller

> From: Josh Dersch > the TU56 lacks the G888 flip-chips necessary to work with the TD8E; I > know these parts are in short supply, but in the unlikely event that > anyone has (a) a set of 5 G888 boards, I have this memory that someone in Scandanavia is well along with the

Re: Original CAD code in the wild?

> From: Randy Dawson > For a while I have collected bits of legacy CAD > ... > My question is, did any of the source code for these systems > .. ever make it out Well, not quite what you're asking about, I think (it sounds like you're interested in MechE CAD, not EE, even

Re: Original CAD code in the wild?

>From: Al Kossow > NASTRAN is available That's a finite element modeling code, isn't it? (I guess it all depends on what the OP meant by 'CAD'...) Noel

CDC 6600 display character generation

Hi, I'm hoping someone here knows the low-level nitty-gritty on how the characters on the CDC 6600 console CRTs were generated. Thornton, "Design of a Computer", says "Control of the beam .. is provided by electrostatic deflection ... electronically converting from the symbol .. to deflection

Re: Modifying microcode

> From: Henk Gooijen > My findings so far : > www.pdp-11.nl/pdp11-35/repair/repair35page.html > Comments are very welcome! I got a: You don't have permission to access to this document on this server. Apache Server at pdp-11.nl error message? > I vaguely remember

Re: old DEC stuff

> From: Dominique Carlier > I just regret this incredible rise in prices for collector machines > that, not so long ago, were languishing in wet sheds Hey, look at the bright side: as a result, they are much less likely to be simply recycled as scrap. I took great pleasure in

Re: Weird Lear-Siegler ADM-3A board

> From: Jon Elson > Steve Ciarcia ... made a board using the NS405 called the Term-Mite. I decided I'd do an article about the Term-Mite for the CHWiki; I found Ciarcia's long article about the Term-Mite (in his book, which Google books has); it talks throughout the article about the

MM11-F manual/drawings

So I have discovered that the manual and prints for the MM11-F core memory are not online; it turns out I have a manual/prints set, and at some point will get them scanned and over to Al. My question is: is there anyone who has an immediate need for these things? If so, I will make the scan

Re: RC25 (was Re: Modifying microcode)

> From: Ethan Dicks > Mostly, what I need is affordable ($250 or less) Unibus storage with > modern media There's this: http://www.retrocmp.com/projects/unibone Not quite there yet, but getting there. Noel

Re: Weird Lear-Siegler ADM-3A board

> Jon Elson > How/where should I submit this? This is now available through here: http://gunkies.org/wiki/Term-Mite_ST_Smart_Terminal I put in a little infrastructure around it (articles on the Term-Mite, NS405, etc), using info I dug up online. Noel

Re: CDC 6600 display character generation

> From: Toby Thain > It's suggested there (without any proof though) that the CDC used a > Fourier process > ... > I'd be very interested to know what you find out about the circuitry. Someone very kindly pointed me at:

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