Re: Front Panel Update

On Jun 8, 2015 8:21 AM, Pontus Pihlgren pon...@update.uu.se wrote: Is there a way to tell your reproduction from an original? /P After looking at both of them, the typeface for the second line of text does not match, and some of the font sizes seem a bit off, or maybe the typefaces used are

Re: Front Panel Tech Note 2

On Jun 15, 2015 9:11 AM, Noel Chiappa j...@mercury.lcs.mit.edu wrote: I'm not sure what the official DEC name is for the plastic lever which actuates the slide switch - anyone know? I hear them referred to as handles. PS: If a way is developed to make the plastic levers, the 11/20 uses the

Re: Documation card readers for sale

On Wed, Jun 17, 2015 at 7:14 PM, John Ball ball.of.j...@gmail.com wrote: About six months ago I struck a deal with a place down in California for four Documation M1000's that I've been able to tell so far they all work but I really don't have space for more than one. If anyone here does get

Re: Common Maxtor MFM drive failure mode -- any ideas?

On Oct 24, 2015 6:36 PM, "Josh Dersch" wrote: > > > To add insult to injury, one of the heads is loose (the glue holding it on dried up and it fell off after the impact of running off the platter) so this drive is basically toast. At least now I can kind of see how one takes

Re: WD9000 Pascal microengine schematics available

On Nov 10, 2015 2:40 PM, "Brad Parker" wrote: > > > Don't you also need to "delayer" the chip to get all the hidden features? I thought the process of reconstructing the polygons required that each successive layer be exposed. From the "top" I'd think you'd only see a single

Re: NeXTSTEP 3.3 Web Browser

On Wed, Nov 11, 2015 at 8:50 PM, Tapley, Mark wrote: > > You know about the Lighthouse Design suite of applications, right? > Presentation, spreadsheet, word processor, drawing program, etc. > > http://download.ithinksw.com/lighthouse/ > > Don’t forget the license strings. >

Re: NeXTSTEP 3.3 Web Browser

On Wed, Nov 11, 2015 at 5:14 PM, Tapley, Mark wrote: > > for setting up static IP addresses, while somewhat arcane, worked for me. > (Sure hope they mean, … ."rich text format document". That would be more > polite than what I fear….) > Hah! Thanks for the tips. Main issue is

Re: NeXTSTEP 3.3 Web Browser

On Wed, Nov 11, 2015 at 1:35 PM, Tom Moss wrote: > What document did you try to open? > Trying to open /NextApps/Nexus.app/default.html or help.html, or /NextApps/OmniWeb.app/English.lproj/Start.html. > I've never used OmniWeb or Nexis, but my experience with Mosaic

Re: NeXTSTEP 3.3 Web Browser

On Thu, Nov 12, 2015 at 11:06 AM, David Brownlee wrote: > Does OmniWeb support using a web proxy - if so you might find it > easier to setup a proxy on another box on your local net and have it > handle all the SSL (faster too :-p) > Good question; I'll have to look into that

Re: IBM System/32 available

On Wed, Nov 4, 2015 at 3:07 PM, Kevin Monceaux wrote: > On Wed, Nov 04, 2015 at 12:53:51PM +1300, Mike Ross wrote: > > > I've been offered an IBM System/32. Location is close to LA. Condition > > appears pretty decent. > > > > If I can't take the offer up, would anyone else

Burroughs Distribution Box

Any idea what this might go to? Someone suggested a B1700, but wasn't exactly sure. http://imgur.com/a/rYtjR Thanks, Kyle

Identification of IBM SMS backplanes

Found some IBM parts recently. Any idea what specifically these might have come out of? I'll be picking them up soon and getting more pictures, but here's a few for now. http://imgur.com/a/pikqG Thanks, Kyle

VMS 5.4 AUTHORIZE issues

Just picked up a very complete MicroVAX 3800. I have very little experience with VMS as this is my first VAX. Mostly a PDP-8 guy, I suppose. I'm running through the change password procedure, which I had seen mentioned previously on this list: SET VAXCLUSTER 0 SET /STARTUP OPA0: SET

Re: VMS 5.4 AUTHORIZE issues

On Wed, Aug 26, 2015 at 2:26 PM, Peter Coghlan cct...@beyondthepale.ie wrote: You need an @ sign in front of SYS$SYSTEM:STARTUP.COM (Sorry - I think I originally posted that procedure with the @ sign missing.) That seemed to do the trick! I'm now in the system. I'm struggling to understand

Re: TK50/TK70 Info

On Thu, Aug 27, 2015 at 11:55 PM, Mark J. Blair n...@nf6x.net wrote: On Aug 27, 2015, at 21:45, Kyle Owen kylevo...@gmail.com wrote: Is your 730 booting VMS yet? Yes! I can boot 7.3 (IIRC) from the R80 or 5.3 (IIRC) from the RL02. I haven't gotten networking up and running yet, but I did

Re: TK50/TK70 Info

On Thu, Aug 27, 2015 at 11:13 PM, Jay Jaeger cu...@charter.net wrote: Looking at www.bitsavers.org/pdf/emulex for P4000 I found a manual that seems to relate t the tapes you have. Those tapes are for an Emulex terminal server called the Performance 4000-T. If you don't have such a unit,

TK50/TK70 Info

I hope to start backing up my MicroVAX 3800 soon via the TK70. Sounds like 8mm is more unreliable than the TK70, and I don't have but one magneto-optical disk. Are there any precautions I need to take before sticking a tape in the drive? Pinch rollers that might be gooey? I assume the TK70 drive

Re: MicroVAX 3800 DSSI Issues

On Tue, Sep 1, 2015 at 4:09 PM, Glen Slick wrote: > On Tue, Sep 1, 2015 at 1:34 PM, Peter Coghlan > wrote: > >> > >> ROHIT1$ mount dub0: disk0 > >> %MOUNT-F-INCVOLLABEL, incorrect volume label > >> -MOUNT-I-VOLIDENT, label = 'USER01 ', owner =

MicroVAX 3800 DSSI Issues

I can boot to VAX/VMS 5.4-2, but on startup, I see this message: %DCL-E-OPENIN, error opening DUB0:[RS1R4]RS1LOG.COM; as input -RMS-E-DNR, device not ready, not mounted, or unavailable %DCL-E-OPENIN, error opening DUB0:[ORACLES]ORAUSER.COM; as input -RMS-E-DNR, device not ready, not mounted, or

TK70 sticky unload button?

Has anyone else come across this? My TK70 wouldn't eject, and having not had one before, I didn't know just how tactile the unload button should be. After further examination and prodding, I determined that the button was pretty much stuck and refused to come out. Taking the front off and

Re: Dec 8235 IC?

Here's what I did to replace a broken 8235 before I found an exact replacement. http://imgur.com/a/QVRLs Kyle

Re: Serial Disk Server to PDP-8/A

On Wed, Sep 2, 2015 at 3:37 PM, Charles wrote: > > Many thanks to Kyle for creating this very useful software :) You're most certainly welcome, Charles! I think you must be the...eighth person worldwide to find it useful! :) I am going to push another release

Re: TK70 sticky unload button?

I fixed the button (replaced it with a standard push button), but it still doesn't want to eject my TK50 tape I put in. Blinks all three LEDs. It looks relatively dust-free inside. I may can get some canned air and blow it out better, but besides that, is there any more debugging I can do, even

Re: punchcard svg file available

On Thu, Sep 10, 2015 at 7:52 AM, Al Kossow wrote: > > look at ALL of the documentation of the period > NO ONE called them PUNCH cards Section 7: http://bitsavers.trailing-edge.com/pdf/burroughs/200-21001B_B200_SeriesRefMan_Jul64.pdf "Punch card stock" "punch card

Re: List vs. community size

On Tue, Dec 8, 2015 at 3:18 PM, Chris Osborn wrote: > > Would really love to see some of the big iron playing music through an AM > radio since it's Holiday Music Week on RetroBattlestations right now. > I've got a tune written up and ready to record on the PDP-8/M. I'll

Re: Fabritek MP-12 Loader

On Thu, Dec 3, 2015 at 10:41 AM, William Donzelli wrote: > Do you mean the seven segment displays on the paper tape reader? > That's correct. There are seven 7-segment displays on the front, with 6 grouped together. It should make for a nice clock. :) You can even add a

Fabritek MP-12 Loader

A colleague and I are working on getting our respective Fabritek MP-12s working. The MP-12 is an industrial-looking computer with a very limited front panel (deposit doesn't increment PC...gah!) but does emulate most respects of a PDP-8. So far, we've been able to find the device codes for

Re: Fabritek MP-12 Loader

On Thu, Dec 3, 2015 at 11:09 AM, Josh Dersch wrote: > > I have what sounds like the same machine outfitted with the same interface > (basically it looks like a synchronous serial port). I don't have the > paper tape reader, though. Yes, sounds like the same configuration

Re: Fabritek MP-12 Loader

On Thu, Dec 3, 2015 at 2:24 PM, Josh Dersch wrote: > > My understanding is that 6015 does modify the accumulator -- from the > manual > ( > > http://www.mirrorservice.org/sites/www.bitsavers.org/pdf/fabritek/402-1001-00_MP12refMan_1974.pdf > ) > Function code 5(8) is

Re: Fabritek MP-12 Loader

Alright, a lot has happened since 24 hours ago! In summary: 1. 6012 advances the tape one byte but doesn't change the accumulator. 2. 6015 reads the tape buffer and skips when ready. (Josh: you're correct; the manual wasn't lying!) 3. 6052 and 6053 read the buttons and switch on the front panel

Re: PDP-12 Restoration at the RICM

On Thu, Dec 24, 2015 at 9:59 AM, Michael Thompson < michael.99.thomp...@gmail.com> wrote: > > Kyle's SerialDisk is here: https://github.com/drovak/os8diskserver I just pushed some changes earlier. Hopefully I didn't break too many things! :) The system handler now has support for FRTS. Still

Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?

Steve Gibson talks about XOR on the PDP-8 here: https://www.grc.com/pdp-8/isp-musings.htm In summary, Steve uses this condensed code using "carryless addition" for XOR: CLA/ clear accumulator (AC) since all we have is add! TAD ArgOne / add (TAD) ArgOne to the just-zeroed AC AND

Re: Has Anyone Written PDP-8 .XOR. Code Using the MQ Register (Without the EAE)?

Here's the best I've got, Bob: ARG1, 5252 ARG2, 2525 XOR, CLA TAD ARG1 /~ARG1 & ARG2 CMA AND ARG2 MQL /STORE IN MQ TAD ARG2 /ARG1 & ~ARG2 CMA AND ARG1 MQA /MQ OR AC -> AC /RESULT IS IN AC You can also add them and subtract two times the arguments ANDed together, but I haven't played with

Decimal Adjust Accumulator on the 4004

I'm currently writing a bit of code for the 4004 at the moment, and playing with it in the online Javascript emulator found here: http://e4004.szyc.org/emu/ According to http://e4004.szyc.org/iset.html (which I believe is copied straight from the MCS-4 Users Manual), the DAA instruction should

Re: Decimal Adjust Accumulator on the 4004

On Thu, Jan 28, 2016 at 8:33 PM, Brent Hilpert wrote: > > The original looks correct to me. > > I think you or the documentation are confusing the hardware carry flag > with the carry out of the 4th bit (nibble carry). > A binary addition of two BCD digits will require

Re: Introduction and RK05J Drive cabling

On Fri, Jan 22, 2016 at 4:00 PM, Joshua Stetson wrote: > > Over the past couple of years, I've managed to work back even further, > piecing together a PDP-8/e system from various parts collected over the > past 4 years and now I have a fully working 8/e including 32kw of core

Re: Code listings for the I4004 or I4040

On Mar 18, 2016 9:15 AM, "dwight" wrote: > > Also, you see most applications using 1702s instead of 4001 > or 4308. I've never seen a 4308 in the wild. I've seen one 4308 in the wild: in a later generation ARC RT-485A NAV/COM radio. The earlier ones just use four 4001s.

Re: Code listings for the I4004 or I4040

On Thu, Mar 17, 2016 at 1:43 AM, Eric Smith wrote: > > Unfortunately I do not, but I've recently become interested in such > things, as I have received from a friend's estate an old board from an > embedded system (possibly a cash register) which has a 4040 CPU. > Photos here:

Re: Harris H800 Computer

On Thu, Apr 21, 2016 at 1:36 PM, Al Kossow wrote: > > I have two front panels for a similar system. > Think you could take some pictures? The lone picture I have of the H800 isn't a close-up of the panel, and I'd very much like to see what it looks like up close. It is a

Re: Digital logo artwork - was Re: Calling all typographers

On Fri, Apr 29, 2016 at 11:22 AM, Toby Thain wrote: > On 2016-04-29 11:39 AM, Paul Koning wrote: > >> ... Fortunately, a correct >> > version, in PostScript form, has been posted long ago by someone > > Do you have a link for posterity? > I think this is the one:

Re: Harris H800 Computer

I seem to have acquired a few boards from a decommissioned system. Don't know what I'll do with these for now, other than maybe hang them up for display purposes...unless someone has one, what else can one do? http://imgur.com/a/NAThh This is the only picture I have of this particular

Re: [cctalk-requ...@classiccmp.org: confirm 38290c8a992491eda604beff5a06ff20cd7e85f5]

On Tue, Jan 31, 2017 at 10:50 PM, Brian L. Stuart wrote: > > What I've been wondering for a while is the span of time over which > the bounces are counted. I can understand shutting a subscriber off > for getting 10 bounces in as many minutes. On the other hand if those

Re: [cctalk-requ...@classiccmp.org: confirm 38290c8a992491eda604beff5a06ff20cd7e85f5]

On Tue, Jan 31, 2017 at 3:18 PM, Paul Koning wrote: > > I'm on comcast.net and I get these too. Once a week or so on average. > The puzzle is that cctalk is the ONLY list that does this. I subscribe to > a whole pile of them, and as far as I know they all complain about

Re: New batch of pdp8 OMNIBUS to USB interface! Please Read and react!

On Fri, Feb 17, 2017 at 2:05 PM, Paul Koning wrote: > > I don't remember precisely, but I think you can export libraries from > Eagle in some sort of text form. If that's true, then it would be SMOP to > write a KiCAD library importer. The key question is whether the

Re: New batch of pdp8 OMNIBUS to USB interface! Please Read and react!

On Fri, Feb 17, 2017 at 10:01 AM, Philipp Hachtmann wrote: > > Why should I? If you look at the board's size you probably see that it > cannot be made using the free version. I own a paid Eagle 7 license. Why > should I throw that away? Started to use Eagle as a child. Have my

HP-35/45 Simulator for PDP-8

Just thought I'd share with you all one of my pet projects for the past few years. I have written an HP-35 and HP-45 simulator for the PDP-8, which uses the original microcode from these calculators. Thus, it is just as accurate as the original calculators, I would believe. Not really sure why I

Re: HP-35/45 Simulator for PDP-8

On Sep 7, 2016 6:27 AM, "Eric Smith" <space...@gmail.com> wrote: > > On Wed, Sep 7, 2016 at 12:10 AM, Kyle Owen <kylevo...@gmail.com> wrote: > > Maybe the HP-41C simulator is next... > > That will definitely be entertaining. > > It will need th

VC8E Option

Charles Dickman's site shows a VC8E screenshot with text: http://www.chdickman.com/pdp8/spacewar/ However, unless I'm missing something, I don't actually see what would've drawn the characters. A little digging on Bitsavers shows there was a VC8E driver.

Re: VC8E Option

On Wed, Sep 7, 2016 at 4:20 PM, Vincent Slyngstad wrote: > > That driver contains the line: >JMS I (STRTHL+4 /CALL PROGRAM HELP > > which calls the code in > http://bitsavers.trailing-edge.com/bits/DEC/pdp8/papertapeIm >

Re: HP-35/45 Simulator for PDP-8

On Fri, Sep 9, 2016 at 10:07 AM, Klemens Krause < kra...@informatik.uni-stuttgart.de> wrote: > > I tried both versions with the emulator, and both gave identical > results. So I tested another "BSW"-replacement, simply: > BSWEMU, > RTR > RTR > RTR > JMP I

Re: HP-35/45 Simulator for PDP-8

On Thu, Sep 8, 2016 at 8:30 AM, Klemens Krause < kra...@informatik.uni-stuttgart.de> wrote: > > I tried it out: I dowloaded the hp35only.pal-source, because it needs only > 4K of memory, kermited it to my PDP8/E and succeeded assembling with PAL8 > without modifying the PALBERT-code. > After

Re: HP-35/45 Simulator for PDP-8

Just pushed the changes; please give it a try! Printing terminal support is next, then maybe I'll tackle the HP-45 error display. Thanks! Kyle

Re: VC8E Option

On Thu, Sep 8, 2016 at 11:59 PM, Pontus Pihlgren wrote: > > Hmm, yes, I think I might actually. What do you have so far? > I don't have much yet, unfortunately; still trying to get my thoughts together on how it should be implemented. Mark Pizzolato recommends using as much

Re: HP-35/45 Simulator for PDP-8

On Sep 8, 2016 8:07 PM, "Vincent Slyngstad" wrote: > > Here's my slightly optimized version, for what it's worth: Nice work. Definitely shorter than mine. I was just working on an optimization that used ISZ, but you beat me to it! > > Some assemblers flag the "("

Re: HP-35/45 Simulator for PDP-8

On Tue, Sep 13, 2016 at 2:55 PM, Klemens Krause < kra...@informatik.uni-stuttgart.de> wrote: > > First PAL8 complained about "IFNZER". PAL8 wants "IFNZRO"! > After changing this, assambly was successfull, and I could start the > program on the straight-8. All seemed to be ok, with the exception,

PDP-8 Code Optimization (was Re: HP-35/45 Simulator for PDP-8)

On Tue, Sep 13, 2016 at 3:38 PM, Doug Ingraham wrote: > > Thanks for an interesting bit of optimization! Need some more optimization fun? :) Vince and I were working on some code to add two signed 12 bit numbers and detect overflow, returning MAX_INT or MIN_INT in AC

Re: Meaning of "architecture width" - Re: 68K Macs with MacOS 7.5 still in production use...

On Thu, Sep 15, 2016 at 8:07 PM, Cameron Kaiser wrote: > > Also, Apple Computer referred to [the 68000] as a 32 bit microprocessor > in > > their early Macintosh ads. > > And Apple *never* oversells *anything.* ;) > How about 65k of RAM?!

Re: HP-35/45 Simulator for PDP-8

On Sep 8, 2016 8:28 PM, "Vincent Slyngstad" wrote: > > From: "Vincent Slyngstad" > Sent: Thursday, September 08, 2016 5:07 PM > >> 7 00402 7630 szl cla / Link set? >> 8 00403 7140 cll cma / Yes, remember it >

Re: HP-35/45 Simulator for PDP-8

I updated the project to include optional OS/8 support. I won't say I've tested it extensively, but it does seem to be working as expected in SimH, anyways. I updated the README to reflect the additions. The directory structure was also updated to something more sane. The keen observer will note

Hitachi 303 Analog Computer Manual

I scanned my copy of the Hitachi 303 manual a few weeks ago. For anyone interested in downloading it, I uploaded it here: https://drive.google.com/open?id=0B8Ow1Wo1rBQUSVdXQU84SWtVRFU Didn't see it on Bitsavers yet, so I thought I would share. Thanks, Kyle

Datamation, May 1972

Does anyone have a scanned (or hard) copy of this? I'm trying to locate one, without much success. I'm mostly interested in the article entitled "Capture and Display of Keyboard Music". Thanks! Kyle

Re: SPRAGUE capacitor for Tektronix 4051.

A lot of antique radio restorers prefer to cut open the can near the base, remove the innards, and replace it with a modern (much smaller) capacitor. Gluing it back together and polishing it up can make it look pretty close to original. Here's a pretty good write-up:

Re: Datamation, May 1972

On Thu, Nov 17, 2016 at 3:01 PM, Cory Heisterkamp wrote: > > Don't forget "Music From Mathematics" to get your IBM 7090 fix. -C > Good catch! I'll see if I can find a copy.

Re: Datamation, May 1972

On Thu, Nov 17, 2016 at 2:57 PM, Al Kossow <a...@bitsavers.org> wrote: > > > On 11/17/16 12:44 PM, Kyle Owen wrote: > > are there any other > > computer music albums out there? > > yes, check the Warners budget (Nonesuch) label > Cool, thanks! I've heard of Non

Re: Datamation, May 1972

On Thu, Nov 17, 2016 at 3:03 PM, Paul Koning wrote: > > This is the piece I mentioned, I believe. https://www.youtube.com/watch? > v=60oxsizDxaQ That's quite eerie sounding!

Re: Datamation, May 1972

On Thu, Nov 17, 2016 at 3:08 PM, Josh Dersch wrote: > > I have an LP, "Electronic Music from the University of Illinois" (1967 or > so): > https://www.discogs.com/Various-Electronic-Music-From- > The-University-Of-Illinois/release/349054. > If I recall, they used the U of I's

Re: Datamation, May 1972

On Thu, Nov 17, 2016 at 10:10 AM, Paul Koning wrote: > > Interesting. From around 1975 or so, and worth learning about is the > music synthesizer developed on the PLATO system at the University of > Illinois by Sherwin Gooch. The hardware is described in great detail >

Re: Datamation, May 1972

On Thu, Nov 17, 2016 at 9:39 AM, Al Kossow wrote: > > https://archive.org/stream/kilobaudmagazine-1978-02/ > > I think there is a paper in the DECUS proceedings as well > > > You might be interested in knowing Prentiss is still around and the > original tapes > along with

Re: Gould 32/77 (was: NWA auctions)

Looks like one person got both the 11/45s for $4500 total. Too much for me, but that didn't seem like a bad deal. Kyle

Re: looking for keytronics keyboard pad replacement kit

If it's not too much trouble, emergency blankets (aluminized mylar, I believe) work well for these keyboards, so long as you get them in the right direction, mylar side towards the keyboard. Seems like you could buy those, then stick them on the mylar and quickly cut them out. Kyle

Re: What is the most amount of money you've spent on a computer or computer-related item?

On Fri, Jan 13, 2017 at 4:24 PM, Jon Elson wrote: > >>> I have a laser photoplotter I built a long time ago to make circuit > board artwork. It does 1000 x 1000 DPI via a raster process, wrapping the > film around a drum. After moving all the conversion software over to

Re: Cleaning RK05 packs (Was: LGP-30 Memory Drum Update)

The cleaning procedure in the laboratory I used to work in for removing organics from silicon wafers was typically acetone, then isopropanol, then ethanol, then a deionized water rinse and nitrogen dry. We did use piranha solution on occasion when it was particularly caked on (like really old

Unknown keyboard

Does anyone have an idea what this keyboard went to? The "here is" key tells me it's likely a terminal, but the hex key pad is throwing me off. Pictures here: http://imgur.com/a/zTgR2 Thanks, Kyle

Friden Auxiliary Reader

I guess I'm on a roll, trying to find out what some things are in the collection. Any idea what this paper tape reader could've been connected to? http://imgur.com/a/DjRj7 Thanks, Kyle

Re: LGP-30 Memory Drum Update

On Wed, Jan 4, 2017 at 12:06 PM, Jon Elson wrote: > > Previous messages suggested the LGP-30 drum was plated with nickel. If > there are amateur astronomers with a vacuum evaporator, it might be > possible to get them to adjust their setup slightly to vacuum evaporate >

Re: Holiday wishes

Happy Holidays, everyone! Here's a transcript from my copy of "The SHARE Songbook" for your singing pleasure: SONG TITLE ' Twelve Days of Christmas' MACRO TWELVE LCLA .NEXTV AIF ( GT 11).END EJECT SPACE 10 SETA +1 DC OC' On the () day of VX -S, ' * My salesman sold to me: AIF ( LE

Photography, was Re: Pair of Twiggys

On Mar 14, 2017 5:24 PM, "Fred Cisin via cctalk" wrote: Ah, out of touch on that, as well! "But, you can do ANYTHING with Photoshop!" Yeah. right. Want a stabilization processor? Most of a ragged Beseler 45, plus a dichroic head that I never got around to rebuilding

SimH PDP-8 simulator plays music

I suspected that I could somehow get some music out of the SimH PDP-8 simulator for a while now, if I could only make it run real time and toggle a GPIO pin fast enough say, on a Raspberry Pi. That may still be doable in the future, but I also had a suspicion that I could generate music not in

Re: New HP42s clone almost available

That looks quite nice. I wonder what the buttons actually feel like; that seems to be one thing that HP has been generally unable to recreate since the 42s and 48GX. Despite keeping my 49g+ in its leather case, one of the buttons managed to break from carrying it in my backpack years ago. I've

Re: SimH PDP-8 simulator plays music

Glad you guys have enjoyed it. I made SimH keep track of elapsed microseconds based on the instruction, which means I'm no longer having to use an average instruction time. This has improved the quality by a huge factor! Here's the new version of the Maple Leaf Rag for your listening pleasure:

Re: Commercial AIM-65 Video Controller?

On May 20, 2017 3:28 PM, "Eric Smith via cctalk" wrote: On May 19, 2017 10:46 PM, "dwight via cctalk" wrote: I don't believe the AIM-65 normally does color?? The AIM-65 normally does one color, which is red, on its alphanumeric LED displays.

Commercial AIM-65 Video Controller?

Any idea what this thing is? https://imgur.com/a/aNFiK Didn't come up with much of anything with Motion Control, Inc. I did plug it in, and it seemed to come alive. I tempted fate again and plugged a composite video source into the input, and a monitor into the output. One pot on top adjusts

Re: os8diskserver help?

Hi Tom, Have you successfully confirmed the functionality of your second serial card? Is it an M8650, M8655, or something else? If you can toggle in a quick serial echo test to confirm it can receive characters, that'd be a good start. Sounds like it has no trouble sending characters, which is a

Re: VCF SE Photos

On May 4, 2017 7:45 AM, "william degnan via cctalk" wrote: I have updated the thread to address comments. I also assigned Alan Hightower to the Tandy exhibit, I had it marked as "whoseisthis.jpg". Thread: http://vintagecomputer.net/browse_thread.cfm?id=677 Alan

Semi-OT: NEC Electra-616 KSU phone system

I have this hunk of metal and have done nothing with it since I've owned it, having two Asterisk systems to play with instead. Is there any interest before I chunk it? I can possibly bring it to VCF MW if convenient. Otherwise, it's in Alabama for now. Thanks, Kyle

Re: Intel 3000 series

On Fri, May 4, 2018 at 8:16 PM, dwight via cctalk wrote: > I'm not sure how much good a 2900 assembler would be for a 3000 series > part. The 2900 has an address controller more like a typical micro > computer, while the 3000 is more like playing a game of chess. > I can

Re: Intel 3000 series

On Fri, May 4, 2018 at 2:47 PM, Eric Smith wrote: > > Signetics also had a microassembler for the 3000 series, "Signetics Micro > Assembler", also written in FORTRAN, and not compatible with CROMIS. > Well, maybe that'll turn up if CROMIS doesn't. > > If CROMIS doesn't

Intel 3000 series

Does anyone have any software for developing for the Intel 3000 series? I bought some parts on eBay and am contemplating a bit-slice PDP-8 or DG Nova for fun. Bitsavers has some 3000 series manuals, but I can't seem to find any "bits" of software. Looks like CROMIS is the cross microprogram

Re: Unknown CDC unit , looks like a drum memory ?

On Thu, May 17, 2018 at 9:11 AM, geneb via cctalk wrote: > On Thu, 17 May 2018, Christian Corti via cctalk wrote: > > On Wed, 16 May 2018, geneb wrote: >> >>> On Wed, 16 May 2018, Ed Sharpe via cctalk wrote: >>> >>> OK I see there is a mix of photos in this

Tennecomp

Al uploaded some of my Tennecomp docs onto Bitsavers: http://bitsavers.org/pdf/tennecomp/ He also already had some brochures, which are very interesting as well. Anyone else have some Tennecomp stuff? I've got more stuff to scan, including a bunch of schematics (size C paper, for the most part),

Re: Modifying microcode

On Wed, May 30, 2018 at 8:51 AM, Noel Chiappa via cctalk < cctalk@classiccmp.org> wrote: > > From: Kyle Owen > > > I do have an 11/45, though... so with this modification, I suppose > one > > could have some fun: > > That's for the -11/40 - very

Re: Modifying microcode

On Wed, May 30, 2018 at 9:34 AM, Camiel Vanderhoeven < camiel.vanderhoe...@vmssoftware.com> wrote: > The microcode for the MicroVAX 2 (for which the MICRO2 assembler was used) > and the CVAX (which is the CPU in your 3800) is implemented as a mask ROM > on the CPU chip itself. No way to change

Re: Modifying microcode

On Wed, May 30, 2018 at 12:05 PM, Jon Elson wrote: > On 05/30/2018 08:19 AM, Kyle Owen via cctalk wrote: > >> >> I'm thinking about trying to find a microcoded architecture to play with >> before I design something around the Intel 3000 series. >> > Intel 3000

Re: Motorola EXORciser M6800 System

On Tue, Jun 5, 2018 at 4:10 PM, Thomas B via cctech wrote: > > Now to my question. The vintage computer forum at > http://www.vcfed.org/forum/archive/index.php/t-44638.html mentioned some > interesting manuals. Archive.org has some manuals, Bitsaver does not have > manuals about the M6800

Re: Weird Lear-Siegler ADM-3A board

On Wed, Jun 6, 2018, 12:52 Eric Smith via cctalk wrote: > Sure, if you've got them handy, I'll try compiling them with FPC. Are you > willing to release them as open source? > > Do you have any actual NS405/NS455 code that would be of interest? > I have this development board with an NS405 on

Modifying microcode

Has anyone attempted to reassemble and update the microcode on a MicroVAX? Seems like there's enough stuff here to possibly do it: http://simh.trailing-edge.com/semi/ucode/ I'm thinking about trying to find a microcoded architecture to play with before I design something around the Intel 3000

Re: GT-40 etc.

A tenth the price of the Twiggy Lisa makes that auction look almost affordable! Final price was $5600. Kyle

Re: Looking for Heath H-29 operation manual and schematic

On Feb 5, 2018 07:02, "dwight" wrote: I expect to be at the PNW VCF. If Al isn't going up there I can take them and give then to Al. We are in yelling distance ( almost ) of each other. Dwight Only issue is I'm already in Portland visiting other collectors before the

Re: Looking for Heath H-29 operation manual and schematic

I have a (supposedly complete) manual set for a Z-29 and can scan them after VCF PNW. Kyle

Re: VCF Midwest seller's experience?

On Wed, Aug 15, 2018 at 1:45 PM, John Foust via cctalk < cctalk@classiccmp.org> wrote: > > I'm thinking of reducing my collection by bringing items to VCF Midwest. > I attended once six or seven years ago. > > Of course a great deal depends on what I'm selling, so I'll build a list. > > Possibles

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