- test-drb@ccmp.vtda.org - classiccmp.org

by gil＠vauxelectronics.com

Jeffrey: I made a board a couple of years ago that provided a current loop interface and a pic for ascii/baudot and speed conversion. I am in the process of a second-gen of that board. It will let you use a baudot machine to interface to a 232 port in ascii. If you get the 32, let me know; but don't pay too much. On the plus side, even if you don't want the 32 down the road, you can find a 33 in ratty cosmetic condition and swap the guts, since the 32 looks like it has a case and stand in very good condition (not easy to find good cosmetics). gil >Date: Sat, 1 Mar 2003 22:32:58 -0600 >From: >To: ClassicCmp Lists <cctalk(a)classiccmp.org> >Subject: ASR-32 Usable as Terminal? >Reply-To: cctalk(a)classiccmp.org > >> >> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3010656618 > >I just realized, *after* bidding, that this TTY on eBay is a 32, not a 33. >Oops. Since it uses baudot code instead of ASCII and has a rotary dialer on >its CCU, is it useless as a terminal for a PDP-11? What would be required to >make it useful for a terminal? > >I'm thinking that I should cancel my bid. I want a TTY solely to have a >period terminal for my PDP-11/20. :-/ > >Yes, I have read the following in the "vital poop" thread: > >> Before you spend big bucks on ebay >> ---------------------------------- >> A Model 33 has a four-row keyboard (not including the space bar). >> A Model 32 has a three-row keyboard (not including the space bar). >> The 33 is ascii, and the 32 is baudot. >> You cannot (prctically) modify a 32 into a 33. > >-- >Jeffrey Sharp ;----------------------------------------------------------- ; vaux electronics, inc. 480-354-5556 ; http://www.vauxelectronics.com (fax: 480-354-5558) ;-----------------------------------------------------------

23 years, 1 month

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Just for the sake of asking... (was - RE: Trivia Question)

by Edward.Tillman＠valero.com

Gee! You musta worked at the same place, or one very like it. :) Ever seen any of those old parts floating around? Cheers! Ed San Antonio, Tx, USA -----Original Message----- From: Eric Smith [mailto:eric@brouhaha.com] Sent: Thursday, February 27, 2003 2:09 PM To: cctalk(a)classiccmp.org Subject: Re: Just for the sake of asking... (was - RE: Trivia Question) Edward Tillman writes: > It that a "real computer?" Of course it was! But they didn't so much have light pens as "light guns", right? And I can't think of too many other computers that had ashtrays built into the consoles.

23 years, 1 month

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Calcomp incremental plotter

by djg＠drs-esg.com

I just got a Calcomp 563 incremental plotter. Does anybody have a manual that I could get a copy of or at least know the pinout of the connector and what the mate is (round multipin). Also does anybody know where I can get supplies such at the 30" sprocket feed paper rolls (still doing a web search but only found 36" so far) and the pen. The pen looks like a short ballpoint cartridge so hopefully I can cut a normal one down if I can't find an identical one. Thanks, David Gesswein http://www.pdp8.net/ -- Run an old computer with blinkenlights.

23 years, 1 month

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DEC Server 300

by cb＠mythtech.net

>A DECserver 300 is about 19"x12"x4.5", weighs 10-15 lbs (guessing), and has >16 MMJ's (modified modular jack), an AUI (thickwire Ethernet), and a >10Base5 (coax Ethernet) connection on the rear. Mine has a "tabletop" >plastic shell on it with rubber feet under it, although many of these were >sold without the case and were rack mounted. My unit has a beige-ish plastic >shell over a gray metal box. Units without the plastic shell with be gray >and "gold" alodyne finished" aluminum. Ok, then I'm pretty sure it isn't in the dumpster. Something of this size/appearance would have caught my eye. If it had been along the lines of a PC desktop or tower case, I could see that I might have over looked it, but anything rack mount I think I would have noticed. But I think I may take another swing by tomorrow during the day. The place should be closed since Paramus has annoying Blue Laws and nothing is allowed to be open on a Sunday. So that should give me some daylight and peace to dig some more. >Please PLEASE keep the book - I am sure someone will want it as they are >MUCH harder to locate than the device itself! I would ask for it but I >already have both the DECserver and a manual. I don't think it is a complete manual. There are two, both still shrinkwrapped, but they are more like a booklet then a manual. Pretty small. I don't recall what exactly they said on them. I plan to sort thru the stuff Monday. There may be other manuals that I missed. There is TONS of junk paperwork in the dumpster, so locating manuals would be a chore. If it doesn't pretty much land in your hand, it is unlikely to be spotted. There is one person on the list who has right of first refusal on the DEC stuff. Once he has taken what he wants, if there is anything left, I'll offer it up to the list. -chris <http://www.mythtech.net>

23 years, 1 month

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ASR-32 Usable as Terminal?

by jss＠subatomix.com

George R. Gonzalez wrote: > I'm in a bit of an embarrasing situation-- after getting this nice Model > 32 WU tty, tsting it out, finding out it works perfectly, I finally > realize -- I don't have any space for it! ... So I've reluctantly put it > up for auction on eBay. > > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3010656618 I just realized, *after* bidding, that this TTY on eBay is a 32, not a 33. Oops. Since it uses baudot code instead of ASCII and has a rotary dialer on its CCU, is it useless as a terminal for a PDP-11? What would be required to make it useful for a terminal? I'm thinking that I should cancel my bid. I want a TTY solely to have a period terminal for my PDP-11/20. :-/ Yes, I have read the following in the "vital poop" thread: > Before you spend big bucks on ebay > ---------------------------------- > A Model 33 has a four-row keyboard (not including the space bar). > A Model 32 has a three-row keyboard (not including the space bar). > The 33 is ascii, and the 32 is baudot. > You cannot (prctically) modify a 32 into a 33. -- Jeffrey Sharp

23 years, 1 month

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Sellam on Tech tv (again)

by n8uhn＠yahoo.com

Great show Sellam, I was really drooling over that apple 1 in the wooden case! hope to see more classic computers from your collection on tech tv. BTW any more info or updates an that very rare fps mini? Bill

23 years, 1 month

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Sellam on TeeVee

by jpl15＠panix.com

Yo Sellam: good job on Screensavers this afternoon! A nice look at one of the last Apple 1s.... Cheerz John

23 years, 1 month

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PDP-8/L: multiple failed 7440's date code 7005

by charlesmorris＠direcway.com

I have been busy debugging my PDP-8/L that last worked when stored in the barn around 1995. It is slowly coming back to life - still having problems with the core memory. I have noted one strange and recurrent problem. So far I have changed nine bad 7440's on a variety of modules, mostly core drivers (G221, G228) which have had their outputs stuck, usually high. All of them were labeled "DEC7440" with a date code of 7005! Currently lower page locations won't write the lower bits 5-11 (or at least return zeroes). The only common denominator for data bits 5-11 are at slot A09, where the MEM ENABLE 5-11 and MA ENABLE 5-11 lines are driven by, you guessed it, M617's featuring 7440's. Haven't verified this yet but it's a safe bet where at least some of the problem is! Has anyone else experienced this problem? Seems like the chip manufacturer must have had a few specks of dust in the fab room that day in Apr. 1970... -Charles

23 years, 1 month

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LK250 Keyboard available

by geoffr＠zipcon.net

I'm pretty sure it's a LK250, this is a Dec Keyboard for PC's I've used it on AT class machines, but it's been gathering dust for a few years. (think LK201 for PeeCee) asking $30 plus S&H OBO (make me an offer, It can't hurt to ask)

23 years, 1 month

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NEXT Keyboard question

by kenziem＠sympatico.ca

A friend has a slab but is missing the keyboard. Will a MAC keyboard also work? Does anyone have the pinout to let him rebuild one?

23 years, 1 month

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Free DEC MINC-11 in NW England

by Lee.Davison＠merlincommunications.com

> I'm on it - I'm maybe 2 hours away from there so I can pick up, assuming a) > I can get it in the garage and b) my girlfriend doesn't kill me :) I'll send flowers. 8^)= Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

23 years, 1 month

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An H89 issue

by MBuhler＠itt-tech.edu

Hi Tom, I found you after a google search. I used to have several working H89s but I got rid of all them. Now I've found 5 H89 floppies which I think contain good information but of course I can't read them any longer. I live in Grand Rapids Michigan and would drive a couple of hours to visit someone who owns a working H89 just to find out what is on those floppies. Do you know of anyone who could help me? Max Buhler: mbuhler(a)itt-tech.edu

23 years, 1 month

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More PDP-8/L repair fun (bits won't read/write)

by charlesmorris＠direcway.com

Some of my bits not setting turned out to be bad parts on the front panel! 15 years ago I installed LEDs/resistors in place of all the (mostly burned out) incandescent lamps. One had a cracked composition resistor, and the other an open (base-emitter) driver transistor. As I posted earlier, the problem with the core not reading/writing bits 5-11 was indeed the MEM ENABLE signal from the M617 in slot A09. But the 7440 was good for a change (not one of the bad batch with 7005 date code). Turns out the wire from that pin on the backplane was installed too tightly at the factory and had shorted through the insulation to a ground pin. Now the core works, and CPU executes various test programs; SR, AC, MB, MA all working fine... EXCEPT it won't read/write on any of the 128 bytes of page 0! Going to try to figure that one out tonight... Another strange find - the PROTECT key did not, in fact, protect the upper page (7600-7777) of core. I found a factory-appearing wire on the backplane, jumpering the output of an inverter directly to ground! Some idiot probably was bothered by noise giving false PROT errors or couldn't figure out that the switch is off when in the down position, and just shorted the signal out. Now that works, too. Didn't fix the page-0 problem either. The DF and IF switches do nothing (i.e. flipping them does not bomb a running program, or prevent reading/writing from the front panel switches), but I think that's normal without the extra 4K installed. -Charles

23 years, 1 month

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Calcupen

by francois＠auradon.com

Hi all, How would one go about disassembling a calcupen? Mine is not coming up anymore with a fresh battery. I would like to see what's up inside: look for corosion and stuff. Thanks Francois Minnesota

23 years, 1 month

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Motorola MCM6665BP20 Specs

by melamy＠earthlink.net

Hi Tim, The format is 64K x 1 with an access time of 200ns. It was introduced sometime before 1982 as it appears in my 1982 IC Master. I have specs for the 6664 part if that would help, but it is supposed to be compatible with the more generic 4164 chip in case you already have specs for that. Best regards, Steve Thatcher >--- Original Message --- >From: "Tim" <thodgson(a)pnc.com.au> >To: <cctalk(a)classiccmp.org> >Date: 2/28/03 2:02:18 PM > G'day, >I've recently been going through a few items I had tucked away & found a bunch >of IC's... >Now I'm going through them, one by one, & trying to find as much info I can >find. > >So far, I've found nothing on the Motorola MCM6665BP20, a 16pin chip with a >secondary code of FQD8432. >I'm trying to find complete specs, any idea's? > >Thanks in advance, > >Tim.

23 years, 1 month

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HP 2100A hardware reference docs?

by glenslick＠hotmail.com

I picked up an HP 2100A a couple of days ago and before I do anything with it I'd like to find some hardware reference docs which describe the boards which should be installed, along with schematics and such. I haven't found a copy on the web. Does anyone know where a copy might be found? I have no idea if I have a full set of cards for a functional CPU. All of the blue slots are full of A1-A9 cards. I assume those are the main CPU logic cards. It also looks like there is a 4K two card core memory set (XYD/SSA) plus an 8K two card core memory set. Plus whatever the ID/IDL/DC cards do. The power switch key is gone. Is there a way to bypass that? Also the F5 fuse cap and fuse is gone from the back panel. I hope that is not a sign of power supply problems. The boards installed in the CPU card cages are the following: Front Cage Rear Cage A1 XYD -\ 02100-60052 top jumper A2 SSA(4K) -/ A3 SSA -\ 02100-60054 top jumper A4 XYD -/ A5 ID(16K) -\ \ ribbon cable top jumpers A6 IDL | / A7 DC -/ A8 A9 (twelve empty slots) TERM BUF'R'D TTY 12531 _________________________________________________________________ Help STOP SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail

23 years, 1 month

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DEC Server 300

by cb＠mythtech.net

What does a DEC Server 300 look like? About how big are we talking about? I unloaded the dumpster pulls from last night, and one of the manuals was marked DEC Server 300. So I'm kind of assuming that might be the DEC the other parts came from. I'm thinking of going back for another dive tonight, so I'm wondering what exactly I should be looking for. Or if this is a large machine, I can pretty well say that it isn't in the dumpster. -chris <http://www.mythtech.net>

23 years, 1 month

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decserver 550 in Kansas City

by mbg＠TheWorld.com

>> I read somewhere that it could be converted to a 11/53 with a minimal >> effort. How much trouble? >Rip out the CXA's (16-port serial boards), add a disk and/or tape >controller, and perhaps some memory. Off you go. The heart of >the DECserver 550 was/is indeed a barebones /53 CPU. Which comes >with 512KB RAM on the CPU card, and its console serial port. I don't believe you are "ready to go" after this mod. I seem to remember that the ROMs on the DS500 use special boot code and that they need to be replaced to be a normal 11/53. I saw some posts on one of the newsgroups from someone who had done it. Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | email: mbg at world.std.com | | | | | "this space | (s/ at /@/) | | unavoidably left blank" | URL: http://world.std.com/~mbg/ | | | "pdp-11 programmer - some assembler | | (DEC '77-'98) | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

23 years, 1 month

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HP 7905/9706 ??

by aek＠spies.com

>Any body on here seriously interested in the HP 7905 and 7906 disk drives? possibly, depending on location (i'm in the SF bay area) 12995 isn't showing up on any of my parts lists. Was it an HP1000 interface card?

23 years, 1 month

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UK TV programme: The Programmers

by avickers＠solutionengineers.com

There's a programme on BBC2, Thursday 6th March at 6.30AM (yup, AM), called "The Programmers" It purports to be about "the history of computing, from hardware and software to programming, and the people who devised the code to make them work". I'll tape it (if I remember). I suspect it's an Open University programme, so with a bit of luck it'll show some truly old hardware, as well as some shocking kipper ties and psychedelic chunky-knit jumpers :) -- Cheers, Ade. Be where it's at, B-Racing! http://b-racing.com

23 years, 1 month

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Neon logic

by bnansel＠mail.nauticom.net

I came across reference to a file, LAMP.ZIP, you posted briefly for the Classic Computer list back in '99. Would it be possible for me to get this file? I'm fascinated by the idea of making counters, logic gates, and memory elements using neon lamps, but repeated google searches reveal very, very little hard information (other than there were such circuits). Also, I've read a few pages on early calculators (such as the Anita) using something similar to neon lamps for logic gates and ring counters, though the pictures lead me to believe they are actually 4-lead gas triodes or thyratrons of some kind. Do you know what these beaties actually were? Finally, I've repeatedly run across mention that neon device switching is slow, but how slow are they? You assistance is appreciated! -RLN

23 years, 1 month

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TRS-80 Model 4 help requested

by pat＠purdueriots.com

I recently picked up a TRS-80 model 4, that seems to have problems with its floppy drives. The machine is a base Model 4 with 64KB of ram (I think - haven't yet taken the EMF shield off the mainboard), and no peripherals attached. When I powered it up the first time, with or without a disk in the (bottom) drive, it displayed "Cass?" on the screen, and then I could press enter to that and the "Memory size?" prompt, and get a basic prompt. I tried swapping the floppy drives, and that time I got a "Diskette?" prompt if there was no disk in the drive, and pressing any keys didn't cause anything to happen. If I put a disk in the drive, the machine never displays anything, and then after 10-20 seconds, the drive light goes out. I tried connecting only one drive at a time, with the same results. If I connected a 1.2MB floppy that I had laying around (a Teac FD-55GFR-149-U), it did the same thing as if the drives were swapped. Yes, I realize that the drive probaly wasn't going to work, I just wanted to see if it did anything. Also, the disk I used was supposed to be a TRS-DOS (bootable) disk, but it's possible that they've gone bad after so many years. Are the disks on the Model 4 recorded so that I can read them on a PC (IE 48/96tpi MFM, compatible with the NEC D765)? I'd like to know if I can make backup images and/or see if the disks work on another machine. Thanks. Pat -- Purdue Universtiy ITAP/RCS Information Technology at Purdue Research Computing and Storage http://www-rcd.cc.purdue.edu

23 years, 1 month

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Anybody know what a HP 12995 is?

by rigdonj＠cfl.rr.com

Just like the title says. Joe

23 years, 1 month

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HP 7905/7906 ???

by rigdonj＠cfl.rr.com

Any body on here seriously interested in the HP 7905 and 7906 disk drives? Joe

23 years, 1 month

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Reading a VMS CD-ROM for SIMH under Windows?

by vp＠mcs.drexel.edu

--- Ethan Dicks <erd_6502(a)yahoo.com> wrote: > There is no way any of this will make him see the light about Linux > or UNIX or anything... he's an HP Customer Engineer on assignment > with a company laptop and a Digital Personal Alpha Workstation (VMS) > by his desk (no CD-R drive). Although I don't think this will help this particular guy, I would like to say that I have solved the usual "Do I run Windows or {Linux,*BSD} on my laptop" dilema by running both at the same time under VMware. I have installed OpenBSD on a separate partition (so that I can boot native if I have to), but I mostly boot Windows 2000 and run OpenBSD under VMware. I can then run a Windows-based X-Server (eXceed) and talk to the OpenBSD, and even use samba (on the OpenBSD) to mount filesystems from the Windows side. VMware allows direct access to devices (e.g. CDROM, USB,e tc) which means that I can mount any kind of CD and access it using Unix tools). OpenBSD can even see the network so that I can run ssh, IPsec etc from the OpenBSD environment rather than messing with the Windows equivalents. (like I said this is general FYI, which may or may not be particularly applicable to that particular guy). **vp

23 years, 1 month

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Exatron Stringy Floppies

by alhartman＠yahoo.com

When these drives came out, they were touted as being "as good as a regular floppy drive". Being 18, and of limited funds... I remember drooling over the flyers thinking of getting two of these drives and a bunch of tapes. My friends in the local TRS-80 Users Group kept talking me out of that (Kings Byte in Brooklyn). I guess, in retrospect... I'm glad they did. I remember that before I went to disk drives on my E/I, I used to load Level III BASIC (From Microsoft), which had corrected Cassette loading routines) when I would type in programs from magazines. I'm somewhat bummed out that my old Model I is kaput. I've got a bid on another non-working unit locally in South NJ, and if I can win that... I'm hoping to combine the two units into one working one. My old Model I is like a spaghetti factory inside, having the following mods: - Electric Pencil Lowercase Mod - Dennis Kitsz High Speed Mod (auto switching when disk drives or cassette are accessed). - Inverse Video (my friend added this, I hate it!) - Internal Speaker attached to cassette port (for game sounds) - Internal Alpha joystick adapter (just some diodes and a connector) - Reset Button - External Keyboard connector - Composite Video Out - Upgraded keyboard with keypad (it didn't have that originally) - XRX Mod (for more reliable tape loading - Gold Plugs But, the unit is a mess inside. I'd like to strip out a lot of the junk and see if I can get it working again. I've asked my friend who did the mods originally if he'd do that for me. Hopefully, the non-working unit I have my eye on is just a case of loose video RAM chips as the owner said it worked before he sold it to another buyer, and after it arrived it booted up with garbage on the screen. So, I'm hoping that opening the case and reseating some chips will fix it. I did a search and the 21L02 chips (1k x 8) for the video ram upgrade for Lowercase are still available. So, I can add the lowercase mod to it. And I can swap character generator chips with my old unit if need be. I'm hoping one of my two E/I's is still working so I can use it with this keyboard unit. Nostalgia... As for the A&J units, they worked pretty well when I used them at Zebra Systems. I used to load the Terminal program for the 2068 Modem onto one, so I could load it faster... I had a few carts tangle (like an 8 track player), but not many. It's funny, but in the Dennis Kitsz book he had a project to modify an 8 track recorder/player to serve as a mass storage device. The forerunner of Stringy Floppies and later Tape Drives, I guess.... I leafed through that book yesterday. What fun stuff there is in there.... I still have the whole series. Especially Disk and Other Mysteries.. Which was like my Bible back then. I can't remember how many hosed disks I recovered using that... Regards, Al Hartman

23 years, 1 month

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Monrobot XI Instruction Card

by dbetz＠xlisper.mv.com

In case anyone is interested, I've posted a scan of the Monrobot XI Quikomp reference card. This is the language I used to program the Monrobot XI when I was in junior high school back in the 60's. I'm not sure if this is the actual machine language of the machine but it is the only documentation that I have left. It is on my rather lame web page is at: http://www.mv.com/ipusers/xlisper/index.html

23 years, 1 month

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Reading a VMS CD-ROM for SIMH under Windows?

by healyzh＠aracnet.com

> --- "Zane H. Healy" <healyzh(a)aracnet.com> wrote: > > > All I wanted was a way with nothing but Windows to read a VMS > > > distro disc. I am now firmly convinced that no such thing is > > > possible without buying *some* piece of software. > > > > Did you check http://www.softresint.com/charon-vax/Tools_and_tips.htm > > like I'd suggested? > > I passed the information along to him. He told me that he found a > reference to a likely utility (makeimage?) but could not find it > to download. Could that be the magic util? That bit of info, coupled with Google, turned up the needed info. What you need is the following Zip file mkimage_vax.zip Unfortuantly it's been removed from the website. I'll try and find it tonite, hopefully I've still got a copy. In the mean time, you might want to check: http://unxutils.sourceforge.net/ it has a copy of dd.exe that doesn't appear to need cgywin installed. Zane

23 years, 1 month

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Litton Industries Monrobot XI computers available

by dbetz＠xlisper.mv.com

I recently received email from FThomas470(a)aol.com informing me about the availability of some Monrobot XI computers. I would love to acquire one of these as the Monrobot XI was the first computer I ever programmed (in junior high school). Unfortunately, I am not sure I am going to be able to afford to ship one from Virginia to NH. In any case, I certainly can't take all 5-6 of them. If you are interested, please contact the email address above. I don't have any more information than what I'm posting here. If anyone decides to rent a truck to move them from Virginia toward New England I'd be interested contributing to the cost of the rental in exchange for hauling one for myself. Here is the text of the messages I've received about these machines: Litton Industries's Monrobot XI We are in Charlottesville, Virginia and we have 5 or 6 of them in storage. Until 7 or 8 years ago two of them were still being used and worked just fine. In their time, they were really great machines and I enjoyed programming and working with them. We also have 2 Friden Computypers which are earlier than the Monrobots. They had no electronics at all, but used rwo Friden late model mechanical calculators with solenoids on all the keys and electrical contacts on all the dials. They used a pile of stepping switches and a big plug-board for programming. It was a far-out design but worked very well. We will be moving shortly and are pressed for space. Please let me have your thoughts and/or suggestions. If you are interested, any reasonable offer would be considered. The Monrobot consists of the main computer unit which contains the electronics and magnetic drum, a little control unit with switches and control buttons and a place for the I/O typewriter. It's about the size of an office desk and weighs about 400 lbs. A side section connects to it and has a paper tape punch and a reader.

23 years, 1 month

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Neon logic

by mranalog＠attbi.com

Robert Nansel wrote: > I came across reference to a file, LAMP.ZIP, you posted briefly for the > Classic Computer list back in '99. Would it be possible for me to get this > file? I'm fascinated by the idea of making counters, logic gates, and > memory elements using neon lamps, but repeated google searches reveal very, > very little hard information (other than there were such circuits). I have put lamp.zip back up on my web page once again. The zip file contains scanned images of pages describing glow lamp logic circuits. The size is 1.6 MB. http://dcoward.best.vwh.net/lamp.zip These scans are from "General Electric Glow Lamp Manual", first edition, 1963 pages 45-66 I would appreciate someone hosting these scans because I don't have the space to keep it up there all the time. --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://dcoward.best.vwh.net/analog =========================================

23 years, 1 month

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Free DEC MINC-11 in NW England

by mbg＠TheWorld.com

>What's happened in the intervening two years - filled the >gaps with more machines ? :-) Well, although I've acquired a few additional machines (and manuals, handbooks, software and other memorabilia), the condo is getting pretty empty of such stuff as I try (seemingly perpetually) to prepare it for sale... the machines are in storage (with a few machines being held for me at other locations) Someday I hope to have a house with a basement and garage where I can truly have the stuff available to be seen... Megan

23 years, 1 month

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Free DEC MINC-11 in NW England

by mbg＠TheWorld.com

> [Description of rescue squad removed] >I will nominate Sellam as high priest, Megan as high priestess, and tony >as hardware witchdoctor. . I love it.. :-) If you could have seen my condo about 2 years ago, you would have seen exactly what you described... machines, documentation and disks everywhere, with only narrow paths down either side of my living room so that I could get to the machines, couch and tv (though one could not watch the tv from the couch, as there was a row of dec tall cabs in the way). Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | email: mbg at world.std.com | | | | | "this space | (s/ at /@/) | | unavoidably left blank" | URL: http://world.std.com/~mbg/ | | | "pdp-11 programmer - some assembler | | (DEC '77-'98) | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

23 years, 1 month

2
1
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Fortran

by avickers＠solutionengineers.com

Gosh, I had /no/ idea that Fortran was a "column-sensitive" programming language; I thought that COBOL was the only one... What other languages are column sensitive? I'd guess at APL, but I'm sure there are others. -- Cheers, Ade. Be where it's at, B-Racing! http://b-racing.com

23 years, 1 month

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A&J Stringy Floppy

by alhartman＠yahoo.com

> From: Robert Borsuk <rborsuk(a)colourfull.com> > > Woohoo, > Timex guys on the list. I can ask a Timex > (sort of) question now. > I have an A&J MicroDrive (Stringy Floppy - The next > big thing to rule the world) that I don't have any > information on. I would love to use it with my > T1000. It was almost complete in the box. > Interface, drive, cable, even some new stringy > floppies still sealed. Does anyone have a > manual for this thing? I've poked around online but > haven't seen too much. Nope. We used to sell those at Zebra Systems. Check the interface adapter. It should indicate on it whether it's a TS-1000 or TS-2068 adapter. I can't remember the commands anymore. If I find anything, I'll let you know.. Regards, Al

23 years, 1 month

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decserver 550 in Kansas City

by mmcfadden＠cmh.edu

Wandering through the local surplus I found a decserver 550 in a full height rack. It had the following boards in it. 4 X CXA16-M M3118 1 X DESQA-SA M3127 1 X KDJ11-SD M7554 Bulkheads, power supply, and cables I read somewhere that it could be converted to a 11/53 with a minimal effort. How much trouble? Mike m m c f a d d e n @ c m h . e d u

23 years, 1 month

8
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Univac on eBay

by n8uhn＠yahoo.com

WHAT, Sellam hasn't won it yet? (grin) i'm sure he he would love to get the univac - but like the rest of us - that price is not only steep but way overkill. Bill Date: Thu, 27 Feb 2003 13:33:57 -0800 (PST) From: Vintage Computer Festival <vcf(a)siconic.com> To: <cctalk(a)classiccmp.org> Subject: Re: Univac on eBay Reply-To: cctech(a)classiccmp.org On Wed, 26 Feb 2003, Jeffrey Sharp wrote: > On Wednesday, February 26, 2003, Stuart Johnson wrote: > > I can't imagine what the reserve is!. > > At this point, I don't care. I just want to be present when whoever wins the > auction picks up the machine. This is one of the coolest machines I might > ever see in my lifetime. Right here in my little town. Here's hopin'... Have you contacted the seller yet to schedule a time to go check it out, take pictures, notes, etc.? -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com * --__--__--

23 years, 1 month

1
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Reading a VMS CD-ROM for SIMH under Windows?

by healyzh＠aracnet.com

> All I wanted was a way with nothing but Windows to read a VMS > distro disc. I am now firmly convinced that no such thing is > possible without buying *some* piece of software. Did you check http://www.softresint.com/charon-vax/Tools_and_tips.htm like I'd suggested? I'm not sure what the mkdisk v1.2 is, but I think it might be what you need. I *KNOW* they had a utility for doing this. If this isn't it, send me an email asking me to check my Virtual PC system to see if I've still got a copy of the utility. Zane

23 years, 1 month

2
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Motorola MCM6665BP20 Specs

by Innfogra＠aol.com

In a message dated 02/28/2003 2:09:28 PM Pacific Standard Time, thodgson(a)pnc.com.au writes: > Motorola MCM6665BP20, a 16pin chip with a > secondary code of FQD8432. > 64K DRAM 200 ns. made in 1984/32 Paxton Astoria, OR

23 years, 1 month

1
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DECNA eth adapter for DEC Pro-350

by franco.tassone＠inwind.it

Hi all, does anybody of you know if there is a chance to get a DECNA adapter for my Pro-350 ? I've got the insane idea to install 2.9bsd with the Pro-3xx modifications, including the support for the DECNA... ... Franco Tassone

23 years, 1 month

2
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RX01 Cosmetic Aid Needed

by univac2＠earthlink.net

It's just a little thing, but it's going to bother me when I mount my RX01 in my nice white rack... Does anyone have a spare white front panel for an RX01 floppy unit? Mine came without one, I believe because the previous owner (the US Air Force, I believe) removed it so that the door on the front of the H960 rack it was mounted in would be able to close. -- Owen Robertson

23 years, 1 month

2
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harris 6100's on ebay

by ericj＠speakeasy.org

Someone is auctioning tubes of harris 6100's on ebay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4663&item=2511601427… Am I correct in thinking this is a pdp-8 compatible processor? Can you build a pdp-8 clone like the sbc6120 using these? Regards, -- Eric Josephson <ericj(a)speakeasy.org>

23 years, 1 month

5
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TRS-80 Model 4 help requested

by alhartman＠yahoo.com

> From: ard(a)p850ug1.demon.co.uk (Tony Duell) Thanks for all of your corrections, it's been some time since I worked daily with a TRS-80 Model I/III/IV. I sold my 4p several years ago (where most of my Model IV experience comes from). I agree with you vis-a-vis the floppies. Maybe the drive is just off speed, and needs a head cleaning. It could be worse off. Drive speed can be roughly adjusted using the decal on the motor and adjusting the pot on the speed board with a non-ferrous screwdriver (like a TV Adjustment tool). I think when I go to Trenton next May, I'll keep my eye out for a Model III or IV. Thanks again! Al

23 years, 1 month

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decserver 550 in Kansas City

by pete＠dunnington.u-net.com

On Feb 28, 10:23, Jochen Kunz wrote: > > [ plain text > Encoded with "quoted-printable" ] : On 2003.02.28 07:00 Stuart Johnson wrote: > > > Jonathan, what I want to know is how do you connect the RX50 and > > RD(whatever) hard drive to the RQDX3? > There are different distribution panels that split the 50 pin cable from > the RQDXx. The M9058 dist panel for the BA123 looks like a double QBus > card and sits in "QBus slot 13" in the BA123. The BA23 dist panel is > mounted inside the enclosure on the back of the QBus backplane. I have > the wiring of this panel, I can mail it to you when you want to build > your own dist panel. There is a BA213 dist panel that replaces the front > panel in a BA213 and has some additional switches LEDs to reset the CPU > etc. I think it is not that easy to rebuild this. It's not that hard to make something that will work. The distribution panels that split up the signals from the RXDX1/2/3 boards to connect to RDxx or RX50 are mostly just rerouting signals (some include some buffering). I've made up two of my own; one simple one, on Veroboard (stripboard), and one as a PCB. If you look in http://www.dunnington.u-net.com/public/RQDX/ you'll find the PCB layout and component overlay, along with the RQDX pinouts, for the larger of the two I made. It includes provision for switches or jumpers to do the job of the front panel switches. The circuits for the switches, inbcidentally, are very simple -- a latching switch, LED, one transistor (to invert the signal, as I recall) and a few resistors. It needn't even be as complex as that. I once traced out and re-drew the schematic of the M9058 board, but I can't find the PostScript file now :-( If I ever do, I'll post it on the website as well. -- Pete Peter Turnbull Network Manager University of York

23 years, 1 month

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ISIS-II command summary?

by dwightk.elvey＠amd.com

Hi Steve Here they are: :F0: - :F3: Primary diskettes :F4: - :F5: Single density on double-density systems :T1: Teletype keyboard :T0: Teletype printer :TP: Teletype Punch :TR: Teletype reader :VI: Video term Keyboard :VO: Video term screen :HP: High-speed paper tape punch :HR: High-speed paper tape reader :LP: Line printer :CI: Console in :CO: Console out :BB: Byte bucket >From: "Steve Thatcher" <melamy(a)earthlink.net> > > >Hi Dwight, thanks for the reminder email. I had remembered DELETE >and COPY, but I could not remember all the details. One thing >that is missing though is what deisgnator was device designator >was used for the serial connectors on the back. I seem to remember >console was :CO: and :CI:... if that is correct? > >Thanks again. > >best regards, Steve > >>--- Original Message --- >>From: "Dwight K. Elvey" <dwightk.elvey(a)amd.com> >>To: cctalk(a)classiccmp.org >>Date: 2/28/03 2:37:41 PM >> >>From: "Steve Thatcher" <melamy(a)earthlink.net> >>> >>>Hi all, I got my Intel MDS225 working today, but I only have >>>a single double density drive on it. I seem to recall that >it >>>would read single density, but you accessed by a different >drive >>>specifier. I can't seem to find one bit of documentation on >the >>>ISIS command at home. Does anyone have a summary page they >could >>>scan and send? >>> >>>I am also looking for the 50 pin connection wiring so I can >connect >>>a drive externally. >>> >>>It was fun booting up ISIS-II version 4.2 and seeing the prompt >>>come up. I also had a CP/M 2.2 version that booted perfectly! >>> >>>best regards, Steve Thatcher >>> >> >>Hi >> I thought I'd add a list of commands from the users >>manual for the archives: >> >>IDISK <device> <label> [S] >> S = System >>FORMAT <device> <label> [<switch>] >> switch: A = Copy all files from :F0: >> S = Copy only files with system attribute >>DEBUG [<progname> [ <parameters> ]] >>SUBMIT <name>[.<extension>][(<parameter0>,<parameter1>...<parameter9>)] >> paramters are %0 to %9 in script >>DIR [FOR <file>][TO <listfile>][<switch>] >> switch: 0 - 5 = :F0: to :F5: >> I = List all files including invisible attrib >> F = Fast listing >> P = Single drive to DIR second disk >>COPY <oldfile1>[,<oldfile2>,<oldfile3>...] TO <newfile>[<switch>] >> switch: U = update but don't change attrib and don't print >> "ALREADY EXITS" >> S = System files only when wild card used. >> N = Non-system files only when wild card used. >> P = pause for single drive with two floppies >> Q = Query >> C = Copy attribs >> B = Replace, regardless >>DELETE <file1>[Q}[,<file2>[Q],<file3>[Q]...][P] >> Q = query confirm >> P = pause to change disk >>ATTRIB <file> <attriblist> [Q] >> Attrib: I0 = Reset invisible >> I1 = Set invisible >> W0 = Reset Write protect >> W1 = Set Write protect >> F0 = Reset Format attrb F1 = Set Format >attrb \ Don't mess with this >> S0 = Reset Syst attrib >> S1 = Set Syst attrib >>BINOBJ <binfile> TO <absfile> >>HEXOBJ <hexfile> TO <absfile>[ START(addr)] >>OBJHEX <absfile> TO <hexfile> >>EDIT Tico like commands >> B$$ = begin of text >> Z$$ = end of text >> [n]L$$ = n lines >> [n]C$$ = n characters >> Ftext$$ = find "text" >> Itext$$ = insert "text" >> Soldtext$[newtext]$$ = find "oldtext" and replace with "newtext >> [n]D$$ = delete n characters >> [n]K$$ = delete n lines >> [n]T$$ = Type n lines 0TT$$ entire line with cursor in line >> E$$ = Exit >> Q$$ = quit >> [n]W$$ = write n lines >> A$$ = Append >> M$$ = decimal space available >> n<commandstring>$$ = Does commandstring n times >> >> >> >>Hope this helps future ISIS-II users. >>Dwight

23 years, 1 month

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ISIS-II command summary?

by dwightk.elvey＠amd.com

>From: "Steve Thatcher" <melamy(a)earthlink.net> > >Hi all, I got my Intel MDS225 working today, but I only have >a single double density drive on it. I seem to recall that it >would read single density, but you accessed by a different drive >specifier. I can't seem to find one bit of documentation on the >ISIS command at home. Does anyone have a summary page they could >scan and send? > >I am also looking for the 50 pin connection wiring so I can connect >a drive externally. > >It was fun booting up ISIS-II version 4.2 and seeing the prompt >come up. I also had a CP/M 2.2 version that booted perfectly! > >best regards, Steve Thatcher > Hi I thought I'd add a list of commands from the users manual for the archives: IDISK <device> <label> [S] S = System FORMAT <device> <label> [<switch>] switch: A = Copy all files from :F0: S = Copy only files with system attribute DEBUG [<progname> [ <parameters> ]] SUBMIT <name>[.<extension>][(<parameter0>,<parameter1>...<parameter9>)] paramters are %0 to %9 in script DIR [FOR <file>][TO <listfile>][<switch>] switch: 0 - 5 = :F0: to :F5: I = List all files including invisible attrib F = Fast listing P = Single drive to DIR second disk COPY <oldfile1>[,<oldfile2>,<oldfile3>...] TO <newfile>[<switch>] switch: U = update but don't change attrib and don't print "ALREADY EXITS" S = System files only when wild card used. N = Non-system files only when wild card used. P = pause for single drive with two floppies Q = Query C = Copy attribs B = Replace, regardless DELETE <file1>[Q}[,<file2>[Q],<file3>[Q]...][P] Q = query confirm P = pause to change disk ATTRIB <file> <Attriblist> [Q] Attrib: I0 = Reset invisible I1 = Set invisible W0 = Reset Write protect W1 = Set Write protect F0 = Reset Format attrb \ F1 = Set Format attrb \ Don't mess with this S0 = Reset Syst attrib S1 = Set Syst attrib BINOBJ <binfile> TO <absfile> HEXOBJ <hexfile> TO <absfile>[ START(addr)] OBJHEX <absfile> TO <hexfile> EDIT Tico like commands B$$ = begin of text Z$$ = end of text [n]L$$ = n lines [n]C$$ = n characters Ftext$$ = find "text" Itext$$ = insert "text" Soldtext$[newtext]$$ = find "oldtext" and replace with "newtext [n]D$$ = delete n characters [n]K$$ = delete n lines [n]T$$ = Type n lines 0TT$$ entire line with cursor in line E$$ = Exit Q$$ = quit [n]W$$ = write n lines A$$ = Append M$$ = decimal space available n<commandstring>$$ = Does commandstring n times Hope this helps future ISIS-II users. Dwight

23 years, 1 month

1
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TRS-80 Model 4 help requested

by alhartman＠yahoo.com

> Patrick Finnegan <pat(a)purdueriots.com> Pat, I tried to boot my Model I to see if I could make you a good boot disk using SuperUtility. It seems my Model I is no more. My friend who I had traded it to (and then gave it back) has modified it quite a bit, and it became delicate. It no longer works at all.. I can use the cassette unit fine, but the E/I is bad, and the LNW E/I I have doesn't seem to work with the unit either. I suspect the keyboard unit more than 2 E/I's are bad. I'm trying to find a Model III or IV locally. If I can, I'll get in touch with you about getting you a boot disk. I might be able to make you one with my Coco and using a Disk Copy Utility on the Coco... I haven't tried yet, and would have no way to test it.. Regards, Al Hartman

23 years, 1 month

1
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Motorola MCM6665BP20 Specs

by thodgson＠pnc.com.au

G'day, I've recently been going through a few items I had tucked away & found a bunch of IC's... Now I'm going through them, one by one, & trying to find as much info I can find. So far, I've found nothing on the Motorola MCM6665BP20, a 16pin chip with a secondary code of FQD8432. I'm trying to find complete specs, any idea's? Thanks in advance, Tim.

23 years, 1 month

1
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Mind fries. was: RE: Free DEC MINC-11 in NW England -

by mtapley＠swri.edu

Mike's fried mind came up with a *really* interesting juxtaposition: >"I will sacrifice an Intel computer daily to purify myself" >"I will never use WD40 as it contaminates all it touches." Ah hah - the equivalent of molten iron for the wintel box? Maybe better to just think of them (Wintel boxes and WD40) as offsetting penalties - put them together and the world will be a safer place for classics. A pleasant image, anyway. Hee hee hee. - Mark

23 years, 1 month

1
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Free DEC MINC-11 in NW England

by mmcfadden＠cmh.edu

Steve Jones said >Looks like there's a DEC MINC-11 in good condition to be >had for free in the North of England. Please, somebody go >save this thing from the skip! Maybe Adrian "Two Sheds" >Vickers can use it for a climate control system for his >garage... ;^) It's Friday and my mind is fried. /begin humor I think we need a travelling/flying squad of "rescuers" who can jet/travel to the location of the systems and recover them. I'll volunteer to quit my job, leave my family, and "save" lost computers. It's probably a calling, just like the priesthood. ( I will ignore all religious flames!) "The salvation army of computers". I will get a battered truck and travel the countryside as a wandering saver of discarded computers. Part of our oath will be "I promise to save all computers lost or not, as long as they have never been contaminated by the dreaded plague of Microsoft" (I will ignore all Microsoft flames!) "I will live in poverty surrounded by pieces of lost computers that I am attempting to resurrect." ( I again will ignore all religious flames!) "I will sacrifice an Intel computer daily to purify myself" "I will never use WD40 as it contaminates all it touches." "I will always search for the elusive Babbage Model 0100." Or I could donate a large barn and some land, and we can set up a commune of computer zealots. Wait there are men in white coats coming to take me away, no it's my wife's lawyer with papers for me to sign!! I will nominate Sellam as high priest, Megan as high priestess, and tony as hardware witchdoctor. . /end humor Mike

23 years, 1 month

2
1
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Large, multi-button mouse recommendations?

by Robert_Feldman＠jdedwards.com

Forget mice -- get a good, large track ball. I use an 2.25" Atari arcade trackball that I put in a custom cardboard and foamcore case, with two arcade button switches. I got it from Happ Controls (http://www.happcontrols.com/). Current price with USB or PS2 interface is $145. When I got mine (almost 15 years ago, so it is on-topic), it did not come with a PC interface, so I cannibalized a cheap serial mouse and made an interface. I think I still have plans I made up for that. I have had to clean and lube it only once in >10 years. I have it hooked to an IBM T20 laptop -- in its box, it's nearly as big as the laptop! -----Original Message----- From: Bill Richman [mailto:bill@timeguy.com] Sent: Friday, February 28, 2003 8:28 AM To: cctalk(a)classiccmp.org Subject: OT: Large, multi-button mouse recommendations? I've been doing a lot of finicky CAD work recently, and my hand is really starting to hurt from gripping the mouse tightly for fine control. I'm looking for a larger mouse (according to one site that sells various sizes of mouse, I'm between a "large" and an "x-large" hand size) that I can lay my hand more or less flat on top of (maybe with a couple of finger loops, so you don't have to grasp it constantly) and ideally with a small multi-button keypad of some kind on top. Is there such an animal out there (aside from the Space Mouse guys' $500 products) that might have these features? Suggestions welcome.

23 years, 1 month

1
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