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

by philpem＠btinternet.com

Hi, I've just acquired a nice little Sharp plotter/printer (model CE-515P). It seems to be in reasonably good condition and it works (to some extent). Only problem is, I don't have a manual. Does anyone here know what the control codes for this little thing are? I also need the pinouts for the RS232C port on the back. Also, does anyone know where to get pens and plotter rolls for this thing? -- Phil. http://www.philpem.f9.co.uk/ philpem(a)bigfoot.com

25 years, 3 months

3
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EACA Color Genie

by witchy＠vorbis.demon.co.uk

Hi folks, I thought there was only 1 version of this machine going by what I'd seen in magazines and the like, and I thought I had it already, but today I picked up another one in slightly better condition that has a VU meter similar to that found on the Video Genie I for tape loading purposes. I'm going to do a search now and a like-for-like comparison on tuesday (got to work my arse off tomorrow getting the cloakroom ready for the plasterers) but if anyone's got any insight that'd be smart. cheers! adrian/witchy www.binarydinosaurs.co.uk - the Online Computer Museum 0:OK, 0:1

25 years, 3 months

1
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HP 9000 DOS sw ?

by jarkko.teppo＠er-grp.com

Hello all! I was going through my old and embarassing posts on groups.google.com and found out/remembered that I have an HP 98286 DIO-I card for HP 9000 series 300. It has a 286 processor but unfortunately I don't have the software necessary to use it.. if anyone has the software I'd really like to know as I want to try some older games like Leisuresuit Larry on HP-UX :) (a nice game btw, I know of at least PC, Amiga and Mac versions. Might be more) -- jht

25 years, 3 months

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just outta curiosity

by Demon02554＠aol.com

just wondering....am i the only kid on this list? Robert Cobbins

25 years, 3 months

52
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Someone missing a TI99/4?

by chris＠mainecoon.com

This is a little odd, but I seem to be in possession of a TI99/4 that was intended for someone else. Sometime the week-before-last a box turned up from Canada, addressed to me, with an import tag reading "PDP DEC Books & Parts", but which in fact contained a 99/4. I recognized the return address as being the guy that I purchased some stuff from some time back on eBay, so I sent a message asking where this thing was _really_ supposed to go and offering to help it on its way. The message didn't bounce, nor has there been a reply. I'm better that the odds are at least even that someone on the list did a deal to get this box. To that end, if someone can tell me what was included (there's more than a 99/4 in the box) and who the deal was done with I'll accept that they're the counterparty to the deal and send it on its way. Man, the things we do to preserve Good Collecting Karma :-) Cheers, Chris. -- Chris Kennedy chris(a)mainecoon.com http://www.mainecoon.com PGP fingerprint: 4E99 10B6 7253 B048 6685 6CBC 55E1 20A3 108D AB97

25 years, 3 months

3
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OT: Altair32: C arrays and pointers

by rcini＠optonline.net

Hello, all: Futher errors have been found in the Altair32 8080 processor emulator code by some eagle-eyed users. So, I'm trying to fix them, but my lack of depth in C programming has become evident. So, I'd like to enlist some help again. Here's the code (cut and paste; written by Claus Giloi): uchar regs[8] ; // A, F, B, C, D, E, H, L - actual storage order! // 0 1 2 3 4 5 6 7 // pointer array for sss, ddd addressing uchar * b_regs[8]= {&regs[2],&regs[3],&regs[4],&regs[5],&regs[6],&regs[7],&dummy,&regs[0]} ; // B C D E H L trap! ACC // pointer array for rp addressing ushort * w_regs[4] = { (ushort *)&regs[2], (ushort *)&regs[4], (ushort *)&regs[6], &SP } ; // B D H SP As you 8080 users know, several instructions operate on register pairs instead of individual registers. The instruction that began this odyssey was INX H. The INX B/D/H instructions increment the BC, DE, HL pairs. INX SP works. B/D/H don't. While the individual register halves reflect the proper values, the word registers are reversed. I guess it's because when accessing a word value in an array, the CRT code swaps the high-order and low-order bytes. So, I used the following code, which produces the desired result but is what I can only assume to be the sledgehammer way of doing what I want (lots of snipping): // u is the opcode and switch ((u&RP_MASK)>>4){ // RP_MASK isolates register pairs case 2: //HL tmpH = *pH ; // pointer to H storage tmpL = tmpL2 = *pL ; tmpL++; if (((tmpL & 0xff) == 0) && (tmpL2 == 0xff)) tmpH++ ; *pH = tmpH ; // save regs *pL = tmpL ; break ; // other cases omitted. } What I do is manually manipulate the byte registers (watching for rollover) to get the desired result, totally skipping the w_regs array. Bogus I admit, but it works. I can only imagine that there is a better way to do this. So, I'm asking for help finding the better way. Thanks again. Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

25 years, 3 months

3
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HP 300

by jarkko.teppo＠er-grp.com

(..must...try...resending...) Quoting Iggy Drougge <optimus(a)canit.se>: > > PCI runs on shared interrupts and seems fast enough to me. Well, DIO-II maxes out at about 5MB/s :) > > HPIB disks? Can't say that I've seen a single one in my entire life. They're lovely. I'm just saving them for those /500-machines as they can only use HP-IB disks. > > >Depends if you want to use it for anything useful or not. > > I really can't imagine either system doing anything useful, since I'm > essentially a UNIX hater, so that is of secondary importance. I just > can't > deal with HP-UX 10.something on the 822, it's so dreadfully slow, and > then > it's got binaries cluttered all over /etc for some very odd reason. Well, gimme the 822 if it bothers you that much :-). Anyway, it's probably possible to run HP-BASIC on it too but if I had to choose between HP-UX and NetBSD I'd take NetBSD. I do have HP-UX on some machines tough. > But then all that would require is a new crystal, right? There are some conflicting rumors on the 385. Basically HP-UX and NetBSD recognise the machine (380/385) via MMU_ID. This changes if you move one of the wait-state jumpers near the processor (marked 33/25 or something). I have a 25MHz 385.. Anyway, some reports say that a real 385 would be 33MHz and some say 40MHz. > I don't suppose HP have got any hobbyist programme? Not that I know of. You can shell out couple of thousand bucks on 9.1 or contact someone with a lot of different HP-UX versions on CD or 9144 tape. -- jht ----- End forwarded message ----- -- jht

25 years, 3 months

1
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VME532, GNX Unix and want for a Maxtor XT-4175E

by ken＠seefried.com

I need to find a working Maxtor XT-4175E disk drive. I've had the wonderful fortune to have picked up a Heurikon VME532 (NS32532 based) development system. This is probably the fastest single-processor 32532 system produced (Encore MultiMax was of course faster, with more processors). The bonus is that this system is running GNX 3.1 with the National Semiconductor cc compiler, along with a bunch of other development tools (and source code for odd ns32k bits). Unfortunately, I don't have the distribution media, so a disk crash would be fatal, wiping out an almost unique machine. GNX is running on a Maxtor XT-4175E 175MB ESDI drive, and if I could find another one, I should be able to 'dd' a bootable backup. Does anyone on the list have one of these drives that they'd be willing to part with, or knows where I can buy one, in order for me to have a working backup of this system? P.S. - Of course, if someone has GNX distribution media, I'd love to hear >from you! P.P.S. - If anyone has any Heurikon VME532 bits, or GNX knowledge, I'd love to hear from you as well. P.P.P.S. - How long has it been since I ran a Unix (a 32-bit Unix, no less) that could fit, with development system, et. al., on a 175MB drive with room to spare (113MB used). Ken Seefried, CISSP

25 years, 3 months

4
3
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My IBM 1130

by bakcc＠bigoakhill.com

I've put some new info about the 1130 on the website, like sizes (big) and weights (heavy). Also, I'm accepting offers on it until June 15th. We'll see what happens... (www.bigoakhill.com, click on ForSale). -Bruce Keller P.S. I'll be off-web most of next week, so I won't be able to respond to emails until Friday.

25 years, 3 months

2
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Slicing open the top of a 48T02 Sun Sparc chip to replace b

by ajp166＠bellatlantic.net

> From: Geoff Reed <geoffr(a)zipcon.net> > I downloaded the datasheet for the 48t02's, i think i may have a handful of > 32.768 xtals here so I'm looking ar chopping the tops off the bad chips I > have and taking protoboard and refitting them with a new xtal and > batteryholder package that can take a replacable lithium cell. :) I > sacrificed one yesterday to the great dremel in the sky to see how the top > was put together... Your sound like serious ly damaging the top. First you can locate the battery with a small magnet as it's steel/nickel cased. Then grind down the the approximate center and do not grind metal away if you can. then grind to the edges and pry old battery out. I've done a few of these and it's that simple. Making it rocket science is unneeded. FYI the top carries, diode, battery, crystal and two capacitors. Allison

25 years, 3 months

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? DEC FAQ

by mcguire＠neurotica.com

On May 19, Bill Janssen wrote: > I have been looking without success for a listing of boards > for the DEC PDP8. I have a couple of boards that I can't identify > for DEC but am not sure what they are or what computer they are for. A good reference can be found at: http://world.std.com/~mbg/pdp11-field-guide.txt [Thanks Megan!] > The boards are M5903 and M5904. There are a couple more that I left in > the pile. M5903 and M5904 aren't PDP8 boards...they're part of an RH11, a Massbus controller for Unibus-based PDP11 systems. If you plug them into an Omnibus system like a pdp8/e, you'll likely "let the magic smoke out". -Dave McGuire

25 years, 3 months

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? DEC FAQ

by pete＠dunnington.u-net.com

On May 19, 16:40, Bill Janssen wrote: > I have been looking without success for a listing of boards > for the DEC PDP8. I have a couple of boards that I can't identify > for DEC but am not sure what they are or what computer they are for. > > The boards are M5903 and M5904. There are a couple more that I left in > the pile. M5903 and M5904 are MASSBUS terminal and control transceivers, respectivley, probably out of a PDP-11. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

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? DEC FAQ

by ajp166＠bellatlantic.net

From: Bill Janssen <billj(a)ieee.org> > >The boards are M5903 and M5904. There are a couple more that I left in >the pile. Dont recognize them as PDP-8. >Also is there a cheap or free terminal program that runs under MS DOS >that will run at 110 baud. The ones I have start at 300. I gave away >my TTY many years ago and now I can't run my PDP8E as it only goes 110. Try an old version of procomm. Allison

25 years, 3 months

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? DEC FAQ

by dburrows＠netpath.net

>From the PDP11-field-guide that was last updated my Megan: M5903 RH11 U MASSBUS terminal transceiver M5904 RH11 U MASSBUS control transceiver Which explains why you could not find anything looking at PDP8 Lists.:) Dan -----Original Message----- From: Bill Janssen <billj(a)ieee.org> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Saturday, May 19, 2001 7:48 PM Subject: ? DEC FAQ >I have been looking without success for a listing of boards >for the DEC PDP8. I have a couple of boards that I can't identify >for DEC but am not sure what they are or what computer they are for. > >The boards are M5903 and M5904. There are a couple more that I left in >the pile. > >Also is there a cheap or free terminal program that runs under MS DOS >that will run at 110 baud. The ones I have start at 300. I gave away >my TTY many years ago and now I can't run my PDP8E as it only goes 110. > >Thanks >Bill K7NOM

25 years, 3 months

1
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HP 1631D logic analyzer help

by nellielide＠starpower.net

Anyone know where I can get a manual and logic probes for an HP1631D logic analyzer ? thanks, dave

25 years, 3 months

3
2
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CMD drops Commodore 8-bit support

by spectre＠stockholm.ptloma.edu

Creative Micro Designs, the last "big name" in Commodore hardware development, is dropping Commodore 8-bit support as of 1 June. :-/ http://www.cmdweb.com/ -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- The superfluous is very necessary. -- Voltaire -----------------------------

25 years, 3 months

2
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tape drives

by pete＠dunnington.u-net.com

On May 19, 19:24, Tony Duell wrote: > Unfortunately, I don't have a basement. Wish I did, I'd have more space > for classic computers :-)... > > > yesterday afternoon I made several hundred dollars babysitting someone's > > WinNT box, coaxing its 5-gig Travan cart tape backup unit to > > retrieve one 13K file, and that took about three hours total > > But if what I find when I leave my machine room and get into the 'real > world' is machines running Lusedoze that take 3 hours to recover one 13K > file (heck, my calculator is faster than that), then I am not sure I want > to 'get out more' :-) It could be worse. Our campus filestore has gotten so big so fast that the backup technology installed couldn't keep up. At one point, it was taking 25 hours to do one day's backup, so *recovering* anything was not an option to be undertaken lightly :-) -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

1
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qx-10 powersupply needed

by jackknive＠bmi-computers.com

i am looking for a working powersupply (or even case portion) for a epson qx-10 if anyone has one or knows where i can get one, please mail me i'm trying to make a old man happy -adam

25 years, 3 months

2
1
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8008 book identification

by jim＠jkearney.com

Forgive me if this is common knowledge, but I haven't been able to dig up any information with a search engine, probably due to my very vague search terms... Around 1974-6 I had a book that covered 8008 system design, in a kind of cookbook fashion. I'm thinking it might have been published by Ohio Scientific, but that's far from reliable. As I recall, the cover was black and it was relatively thick. I built a 8008 system using it (wire wrapped, with 256 bytes of RAM), but book and computer have both vanished since then. I'd like to find another copy for nostalgia's sake. Does anyone have any clues?

25 years, 3 months

3
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VCF East 1.0 Web Pages Are Up -- VOLUNTEERS NEEDED!

by vcf＠siconic.com

The VCF East 1.0 web pages are now up: http://www.vintage.org/2001/east/ Please spread the news far and wide! *** VOLUNTEERS NEEDED *** I am seeking about 8-10 volunteers to perform various pre-event chores as well as to staff certain necessary positions at VCF East 1.0. Volunteers will be rewarded with free admission to VCF East 1.0, a free VCF t-shirt and free food and drink. Volunteers are needed to post event notices in and around the Boston/Marlborough area, spread flyers around at various functions that would attract attendees, send out messages to newsgroups, and also to perform certain duties at the VCF East. If you are interested, please e-mail me at <sellam(a)vintage.org>. Thanks! SPREAD THE WORD!!! Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

25 years, 3 months

1
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Looking for : SUN S-BUS ethernet card (s) -- would like to trade

by claudew＠videotron.ca

Hi I would need one or even better, two of these. See my for trade page. I have quite a bit of stuff... http://computer_collector.tripod.com/vintagecomputers/fortradeindex.html I have more. Ask. Thanks Claude http://computer_collector.tripod.com

25 years, 3 months

2
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DEC Rainbow & LA50 and other finds...

by claudew＠videotron.ca

Well a good week for me. I found a "not to active anymore" collector who lived around here and traded a few duplicate extra systems and periphs I had... And I got: Full kit DEC Rainbow with DEC LA50 printer and all original binders, reference cards, stickers etc...I guess everything there except the original boxes... TRS80 model I with monitor in very good shape. TRS80 model 200 that looks like it was almost never used at all. I might not be keeping the DEC LA50 so trade offers welcome I guess...I have no idea of how interesting this LA50 printer is...or is not... I just have no space for printers... Claude http://computer_collector.tripod.com

25 years, 3 months

2
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PDP-11/53

by mbg＠world.std.com

>Actually I was talking about using the 3rd party controller to boot the >system after you remove the ROMs from the /53. I'm not talking about >putting the ROMs from the 3rd party disk controller into the sockets on >the /53, which obviously wouldn't work so well. A perfect example would be the DSD-880 unit. The interface for it can be configured not to provide the boot code if the system has integral code for booting RL02 or RX02, but the interface can also be configured to provide boot code appropriate for either at the standard address. The only question is whether the KDJ11-D can get out of the way of such memory references. It obviously has to be configured such that the on-board ROM doesn't respond to any of the normal addresses for boot code (beginning at 17765000 and 17773000, if I remember correctly). I would have to check the manual to find out how to configure it to do so, if it is possible. Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

25 years, 3 months

1
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WARNING. You sent a potential virus or unauthorised code

by support＠star.co.uk

The MessageLabs Virus Control Centre discovered a possible virus or unauthorised code (such as a joke program or trojan) in an email sent by you. Please read this whole email carefully. It explains what has happened to your email, which suspected virus has been caught, and what to do if you need help. ------------------------------------------------------------ Some details about the infected message ------------------------------------------------------------ To help identify the email: The message sender was owner-classiccmp(a)classiccmp.org nellielide(a)starpower.net classiccmp(a)classiccmp.org (if this is not your email address, the message sender possibly belongs to a mailing list to which you both subscribe.) The message was titled 'Re: HP 1631D logic analyzer help' The message date was Fri, 18 May 2001 22:26:27 -0400 The message identifier was <000701c0e00b$223f26c0$10152c42@nqezxeod> The message recipients were Lee.Davison(a)merlincommunications.com To help identify the virus: Scanner 1 (F-Secure) reported the following: F-Secure Anti-Virus for i386-linux Release 4.08 build 2260 sign.def version 2001-05-17 fsmacro.def version 2001-05-16 sign2.def version 2001-05-17 669139_2MH_message.htm infection: JS/Kak.A@m 1 files scanned 1 infections found The message was diverted into the virus holding pen on mail server server-3.tower-17.messagelabs.com (id 669139_990239910) and will be held for 30 days before being destroyed. ------------------------------------------------------------ What should you do now? ------------------------------------------------------------ If you sent the email from a corporate network, you should first contact your local Helpdesk or System Administrator for advice. They will be able to help you disinfect your workstation. If you sent the email from a personal or home account, you will need to disinfect your computer yourself. To do this you will need an anti-virus program. We suggest using one of the leading industry anti-virus packages such as McAfee, F-Secure or Cybersoft, which cost £15-£30 per copy. ------------------------------------------------------------ Getting more help ------------------------------------------------------------ If you believe this message to be a false alarm or you require further assistance, you can email Star Internet Support at:- support(a)star.net.uk or contact Star Helpdesk by telephone on:- +44 (0) 1285 884433 Please quote the following Virus Pen ID when contacting Support. <<< mail server server-3.tower-17.messagelabs.com (id 669139_990239910) >>> If replying by email, please forward this entire email. _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp

25 years, 3 months

1
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P/OS Installation Problem

by dittman＠dittman.net

When I try to install PRODCL from the DECUS distribution I get the error: An RMS error occurred at point 0. The sts,stv values are -384. , 0. Does anyone know what this error is, and what the problem is with the installation? -- Eric Dittman dittman(a)dittman.net

25 years, 3 months

1
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PDP-11/53

by pete＠dunnington.u-net.com

On May 18, 16:06, healyzh(a)aracnet.com wrote: > Actually I was talking about using the 3rd party controller to boot the > system after you remove the ROMs from the /53. I'm not talking about > putting the ROMs from the 3rd party disk controller into the sockets on the > /53, which obviously wouldn't work so well. I wondered about that -- but it won't necessarily initialise everything correctly. Emulex boot ROMs won't always set up all the registers in a J11, or initialise large amounts of parity or ECC RAM, for example. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

1
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PDP-11/53

by pete＠dunnington.u-net.com

On May 18, 17:14, Eric Dittman wrote: > > On May 18, Pete Turnbull wrote: > > > The standard (as far as I know -- the ones I have came from a > > > microPDP-11/53 in a BA23 case) boot ROMs are 23-261E5 and 23-263E5. I seem > > > to have accidentally left binary images in my DECROMs directory at > > > www.dunnington.u-net.com/public/ :-) > > > > Eric, do you have the facilities to burn these EPROMs? If not, > > I can help you. Feel free to contact me. > > Yes, I can burn most types of EPROMs, including > the ones on this board. Are they ordinary 27128s or something different? I've seen a lot of DEC EPROMs which had fewer pins than "standard" -- though AFAIR only 8KB ones. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

2
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PDP-11/53

by mcguire＠neurotica.com

On May 18, Eric Dittman wrote: > > Eric, do you have the facilities to burn these EPROMs? If not, > > I can help you. Feel free to contact me. > > Yes, I can burn most types of EPROMs, including > the ones on this board. Good deal. -Dave

25 years, 3 months

1
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PDP-11/53

by pete＠dunnington.u-net.com

On May 18, 13:41, healyzh(a)aracnet.com wrote: > On May 18, 14:06, Eric Dittman wrote: > > I've been gifted with a PDP-11/53 (or 53+) CPU module. > I just heard from someone a few minutes ago, that if you've got a 3rd party > disk controller that you can boot the system off you should be able to > simply remove the ROM's. Well, only if they fit, physically and electrically. Most 3rd-party boot ROMs I've seen (eg Dilog, Emulex, Plessey, GR, etc) wouldn't be the right type for the board. The code might work; I suspect the ROMs from an 11/73 or 11/83 might work. I never used an 11/53 much, but from what I remember it's pretty much like other 11/73+ or 11/83 boards, just with memory on it as well as SLUs and bootstrap etc. I've no doubt someone else (Megan? Allison? others?) can expand on the differences. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

2
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Slicing open the top of a 48T02 Sun Sparc chip to replace bat tery is that thing hollow or filled with epoxy?

by Lee.Davison＠merlincommunications.com

> Has anybody tried one of the DALLAS "smart socket" products with this thingie? Unfortunately the 48T02 is a TOD clock and calendar as well as NVRAM, so there's no suitable SmartSocket to replace it. The registers have to be at particular places and use a particular protocol too. Just got the data sheet and the Dallas DS1642 is a direct form, fit and function replacement for the MK48T02(B). It says so right at the start of the sheet. Cheers, Lee. ---------------------------------------------------------------------------- ---- This email is intended only for the above named addressee(s). The information contained in this email may contain information which is confidential. The views expressed in this email are personal to the sender and do not in any way reflect the views of the company. If you have received this email and you are not a named addressee please delete it from your system and contact Merlin Communications International IT Department on +44 20 7344 5888. _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp

25 years, 3 months

1
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PDP-11/53

by pete＠dunnington.u-net.com

On May 18, 17:32, Dave McGuire wrote: > On May 18, Pete Turnbull wrote: > > or 11/83 might work. I never used an 11/53 much, but from what I remember > > it's pretty much like other 11/73+ or 11/83 boards, just with memory on it > > as well as SLUs and bootstrap etc. I've no doubt someone else (Megan? > > Allison? others?) can expand on the differences. > > I believe the memory on the 11/53 board can be accessed much faster > than memory on the qbus, as well. Yes, I believe so. Anyone know *how much* faster? I don't think it was all that much faster than PMI memory. And I think the /53 *doesn't* work with PMI, which the /73 and /83 do (only the /83 was supported to use it, though). -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

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Exidy Sorcerer: Next problem

by pete＠dunnington.u-net.com

On May 17, 22:10, Louis Schulman wrote: > OK, the power supply works! I have power on the motherboard. Now on > to the next problem. > > When attached to a composite monitor, I get video, but it is a > rolling/pulsing screen. Yes, I have the sync set to 60 Hz. I've seen that happen on Mark 1's where the sync isn't well matched to the monitor's needs and it couldn't lock. That seemd to happen with 50Hz versions and certain monitors, due to the timing of the sync pulse relative to the start of frame. Since this is a Mark 2 and I assume you're using it at 60Hz, I doubt that's the problem. Does switching between the 50Hz and 60Hz settings make a difference? If so, there's probably something wrong with the timing. Looking at the schematic, VSYNC is generated by the counters and multiplexers at 13A, 19B, 20B and 21B, and the 74LS74 flipflops at 18A and 18B. The 50Hz/60Hz switch controls the multiplexers at 13A and 19B, and they choose the reload values for the counters at 20B and 21B. You should see a high multiple (I'm too lazy to work out the frequency :-)) of 60Hz at 21B pin 15 and a lower multiple at 20B-15. That in turn feeds the LS74 at 18B, via the gate at 16A, and the VSYNC signal comes out of 18B-5. If you have a scope, that will tell you if the signal looks about right, if not, but you have a logic probe, at least you can look for 60Hz pulses. If it's extreme, perhaps the vsync isn't getting to the video socket. It's mixed by ORing it [1] with the HSYNC in the LS32 at 9B (pin 9 is VSYNC, 10 is HSYNC, 11 is composite). The composite sync is buffered by by an LS04 at 10H (in pin 10, out pin 11) and then via R59 is mixed with the video data (via R58) to the base of the video transistor. [1] which is what causes the problem for some 50HZ monitors; the HSYNC is effectively lost during the VSYNC pulse, which is very close to the first used scan line, so the top few lines of the screen tend to tear. > So, can you supply a troubleshooting procedure to find where the > problem lies? Again, keep in mind that this is a Sorcerer II (with > apparently 32K in Rows 2 and 3, is this the proper configuration)? Two rows is quite normal -- if the ICs are 4116 or equivalent you have 32K; if they're 4104 or equivalent you have 8K. I think you mean rows B and C (look for the numbers at the edge of the board). Physical row C is actually "row 1" or bank 1 as far as the RAM decode is concerned, and row B is bank 2. Row A is bank 3. The banks have to be filled in order 1,2,3 (rows C,B,A). So, yes, your setup is normal. If you can read the screen display, BASIC will tell you how much RAM is free after it initialises. If you don't have BASIC, the monitor ROM will tell you the address of the top of RAM after it initialises. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

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PDP-11/53

by pete＠dunnington.u-net.com

On May 18, 14:06, Eric Dittman wrote: > So, does any here have a source for bootable ROMs > for this CPU? The standard (as far as I know -- the ones I have came from a microPDP-11/53 in a BA23 case) boot ROMs are 23-261E5 and 23-263E5. I seem to have accidentally left binary images in my DECROMs directory at www.dunnington.u-net.com/public/ :-) -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

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PDP-11/53

by mcguire＠neurotica.com

On May 18, Pete Turnbull wrote: > The standard (as far as I know -- the ones I have came from a > microPDP-11/53 in a BA23 case) boot ROMs are 23-261E5 and 23-263E5. I seem > to have accidentally left binary images in my DECROMs directory at > www.dunnington.u-net.com/public/ :-) Eric, do you have the facilities to burn these EPROMs? If not, I can help you. Feel free to contact me. -Dave McGuire

25 years, 3 months

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PDP-11/53

by mcguire＠neurotica.com

On May 18, Pete Turnbull wrote: > or 11/83 might work. I never used an 11/53 much, but from what I remember > it's pretty much like other 11/73+ or 11/83 boards, just with memory on it > as well as SLUs and bootstrap etc. I've no doubt someone else (Megan? > Allison? others?) can expand on the differences. I believe the memory on the 11/53 board can be accessed much faster than memory on the qbus, as well. -Dave McGuire

25 years, 3 months

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PDP-11/34 on eBay... NOT... NOT

by jss＠ou.edu

It seems that someone told the seller his PDP-11/34 didn't have CPU cards. The seller ended the auction and relisted, this time with a bullet point saying "Sorry there are no CPU cards". -- Jeffrey S. Sharp jss(a)ou.edu

25 years, 3 months

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Magnetic Drum Storage WAS Re: Using audio cassette

by mranalog＠home.com

"Hans Franke" <Hans.Franke(a)mch20.sbs.de> said: > Well, as long as you think along a 'real' drum with flying heads > etc. you're right, but there is a simple solution - take a card > board tube and warp regular cassete tape around, and let a head > read/write this tape ... if you take an old style washing powder > drum (ca. 30 cm diameter / 1 ft) you get a lenght of about 1m > (3 ft 4") - what was the usual speed of cassetes ? 4 cm/s ? I'm > not shure (Tony ?), as a rough estimation you get a track size > of some 3 kByte and an average access time of 12s not to bad ... I have this really sick and perverted habit of picking up unusual items just in case they might be useful for future projects. All of this talk about building a drum storage reminded me of something that I added to my eclectic resource pile a few years ago, an old drum type fax machine. But, when it comes to adding mass storage to a digital computer system, IMHO I can't think of anything faster, easier, or more reliable than the old Commodore 1541. * The DOS is built-in. * Only the system side communication routines need to be written and there is commented source code to use as examples. * The drive side communication routines can also be rewritten. * Since the communication with the drive is normally handled with very robust handshaking, the speed of the computer system is totally unimportant. This also means that disk I/O can be easily interrupted. * And additional drives can be daisy-chained on the same bus. Regards, --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://www.best.com/~dcoward/analog =========================================

25 years, 3 months

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destinking the computers

by mmcfadden＠cmh.edu

Another pointer to a web page about chemicals to remove grease and nicotine for many surfaces. http://www.energy2green.com/uses4.html Seems to me that these products will clean computer stuff as well as car parts. http://www.idealchemicalproducts.com/AutoDetail-1.html I especially like the part that lets you pick the fragrance you prefer. I think Pina Colada or Bubble gum would be perfect for a Mac. :) That's the next wave in computing, different fragrances to match the color of you computer. I'm really partial to ozone when I'm around big iron. Deodorants Spray deodorants for use in auto detail shops Available in Bag-N-Box Long lasting fragrances Super concentrated Water soluble Contains no colorants USES: our deodorants are super concentrated and water soluble. Each product should be diluted with water prior to use and can be used to reduce malodors in a variety of applications including automobiles, campers, tractor cabs and sleeper areas, automobile trunks, bathrooms and shower areas, hotels and motels, nursing homes, day care centers, restaurant garbage areas and any musty damp areas. Each of our deodorants dilutes easily with water and will not harm any surface not harmed by water. Our deodorants are non staining, long lasting and economical to use. USE DIRECTIONS: mix 4 to 8 ounces of our concentrate with 1 gallon of water. Fill either a trigger spray bottle or pump up sprayer with dilute solution and spray area to be treated. Repeat if necessary. Concentrates can also be used in the evaporative air flow type room deodorizers. Simply pour concentrate into the holding container or tank and close door. All the different fragrances that we offer are listed below with product number for ordering * PEACHIE (Fruit) 4-248 * HALT (Cherry) 4-239 * LEMON 4-372 * STRAWBERRY 4-444 * ORANGE 4-241 * BABY FACE (Baby Powder) 4-312 * LIME 4-445 * VANILLA 4-242 * WATERMELON 4-255 * PINEY 4-373 * PARADISE (Floral) 4-912 * PINA COLADA (Coconut) 4-246 * RASPBERRY 4-446 * BUBBLE GUM 4-243 Mike mmcfadden(a)cmh.edu

25 years, 3 months

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74xx orgin

by ajp166＠bellatlantic.net

From: Hans Franke <Hans.Franke(a)mch20.sbs.de> > >Maybe I should specify my question ... I need to know >at what date these chips where at first available - >not just the era. A good single IC to use could be the >74181 ALU. Around 71. Then the H, S, LS, ALS and F parts. >> I have a 74 TTL design guide at home, so I'll check it too. > >The oldest datasheet I could find says Dec 1972 for the 74S181 Sounds close to right. The S however was later the basic 74181 was first. Infact the July 1972 issue of Ham Radio Has a supplier selling the 74181 for $4.50!! Allison

25 years, 3 months

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Exidy Sorcerer

by pete＠dunnington.u-net.com

On May 18, 11:30, Hans Franke wrote: > AFAIR you also have to use either 'adaptor plugs - or fit a new pwower > cable, since the Sorcerer had a fixed one. And there is nothing more > stupid in the world of power transmission than these plugs ... The power cable is fixed, but the plug on the end (that goes into the wal socket) was not a mouilded plug; it was a rewirable one, so it's very easy to remove and fit an appropriate type without mangling the cable. Not usaully a problem for me anyway, as it happens I have some Schuko sockets on my bench as well as lots of British 13A sockets. > Unless the PS is already switchable and there is a Kaltgeraetestecker > (no idea how these inlet connectors are called in english, where the > power cord is detatchable) The three-pin type I think you mean we just call an IEC inlet or IEC socket. The ones that have the notch we call "hot-condition" IEC plugs/sockets (like the ones you get on a kettle). > I always keep the original condition - for > the short time I play around with a specific unit (seldom more than a > few weeks) a stepdown transformer is a fine solution. Sensible enough, but in this case there is provision inside the Sorcerer to rewire the transformer primaries, and it's documented in the manuals. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

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HP 300

by LFessen106＠aol.com

In a message dated 5/18/01 12:18:08 PM Eastern Daylight Time, cmurillo(a)manizales.autonoma.edu.co writes: > "Iggy Drougge" wrote: > -snip- > > they let me have it > > for 50 crowns. My pleasure. > > You were lucky; I'm envious. I'd like to have more of these. > Heck, I'd like to have ONE! -Linc Fessenden In The Beginning there was nothing, which exploded - Yeah right... Calculating in binary code is as easy as 01,10,11.

25 years, 3 months

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Slicing open the top of a 48T02 Sun Sparc chip to replace battery is that thing hollow or filled with epoxy?

by pete＠dunnington.u-net.com

On May 17, 19:34, Richard Erlacher wrote: > Has anybody tried one of the DALLAS "smart socket" products with this thingie? Unfortunately the 48T02 is a TOD clock and calendar as well as NVRAM, so there's no suitable SmartSocket to replace it. The registers have to be at particular places and use a particular protocol too. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

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HP 300

by cmurillo＠manizales.autonoma.edu.co

"Iggy Drougge" wrote: -snip- > they let me have it > for 50 crowns. My pleasure. You were lucky; I'm envious. I'd like to have more of these. > Once I had bought it, though, I though that > 9000/300 was a suspiciously low number. Wasn't that some kind of 68010 based > machine? And why would such a machine have two Ethernet NICs? It probably found a second life as a router. Good for the guy who realized that the machine was still useful. > It really semed > like a waste, but on the underground ride how, I pulled out the big board with > all the ports, which seemed notably shinier and newer than the NIC above, and > found that it had a 68040. I thus deducted that it must be a 9000/380. Has > this machine been upgraded, or did HP simply not bother to identify their > machines any closer than the series (in this case 9000/300)? That's indeed the case. All hp300 systems were pretty modular, although there were some, such as the 340, that were more closed. > In any case, it came without keyboard, and I read that in order to switch it > over to serial terminal mode, one would have to perform a certain manoeuvre > via the keyboard. Bloody well thought out, HP! Is there no way to use a serial > terminal without any HIL keyboard involved? I was forced to leave my 380's monitor behind (darn hp98754a weighed about 100 pounds!) when I moved. I haven't yet gotten down to setting up the 380 in its new home, and I will have to reconfigure it to use a serial console. But I do have some HP-HIL keyboards. > The machine starts up and beeps a little. It's got not drives installed, but > there's a 50-pin "Centronics" connector marked SCSI/FS-HPIB. What is FS-HPIB? > Doesn't sound like anything I'd like to feed into my SCSI devices. The connectors in mine are marked (left to right, top to bottom) 1) BNC for LAN 2) AUI 3) parallel port (pc style) 4) HP-HIL 5) 9 pin PC style RS-232 6) SCSI/HS HP-IB (50 conductor Centronics) 7) 1/8" spkr 8) HP-IB The board is a 98574-66510 Rev C and the ROM is labeled 1818-5062 2/22/91. The cpu is a 25MHz RC 68040. Close to the SCSI header connector in the board there is an unconnected 34 pin header. Maybe that's the HS-HPIB. Indeed, HS-HPIB stands for a faster version of HPIB that was intended for mass storage only; later 300 systems such as the 370 had "human interface boards" (i.e., I/O boards) with HS-HPIB in an attached cable, plus the other usual ports and interconnects. I use the SCSI and the standard HPIB connectors in mine without problems and I am able to boot netBSD off an ST410800N on the SCSI chain or HPUX 9.1 off three 330MB HPIB drives contained in a 7963B behemoth of an enclosure; these I plug in the standard HPIB connector. I have 64MB in it. For a while, I used it as a pretty decent web server. When I get it back up that's what I am going to use it for. I've put pictures of some of the stuff above at http://jimulco.autonoma.edu.co/~carlos/hp/ No hp380 pics yet, though. Later. carlos. -- Carlos E. Murillo-Sanchez email: carlos_murillo(a)ieee.org Universidad Autonoma de Manizales, Manizales, Colombia and 428 Phillips Hall, Cornell University, Ithaca, NY 14853, USA

25 years, 3 months

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I *need* a Rack

by LFessen106＠aol.com

Does anyone in the list here on the east coast have a 19" rack they are looking to get rid of? I really could put on of those to goo use. -Linc Fessenden In The Beginning there was nothing, which exploded - Yeah right... Calculating in binary code is as easy as 01,10,11.

25 years, 3 months

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PDP-11/34 on eBay... NOT... NOT

by mbg＠world.std.com

gee, without CPU cards, it can hardly be *called* an 11/34... just a BA11 box which just so happens to have an 11/34 programmers console attached... (maybe it even has the correct backplane, but who knows) Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

25 years, 3 months

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se/30

by philcarole＠acenet.net.au

can someone give me some info on se/30's or System 6.0.3? regards Tom, reply to:tomhotdog@hotmail.com

25 years, 3 months

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Exidy Sorcerer

by pete＠dunnington.u-net.com

On May 16, 21:59, Louis Schulman wrote: > Well, I just got a fabled but seldom seen Exidy Sorcerer. It has a > power supply problem (including the need to be converted back from 220 > to 110V) but I am working on that. That should be fairly easy; you just change the transformer connections inside the case. The 110V setting has two primary windings connected in parallel to the mains; for 240V the black/red and black/yellow wire would have been cut at the mains filter and joined together, putting the two windings in series. There weren't different units for the two voltages; Exidy literally cut the wires as I describe above, and joined them together for the European sales. If it's been set for the "wrong" voltage, it probably has been set for the wrong vertical sync frequency as well. How you change this depends on whether it's a Mark I or Mark 2. If it has three rows of DRAM, or sockets for three rows, it's a Mark 2. For a Mark I, there are 3 jumper sets on the underside of the PCB, beside the ICs in positions 3B and 4B. The first set is a pair of square pads between the rows of pins of 4B; connect them for 60Hz, or disconnect them for 50Hz. The second set is a group of 3 pads between 4B and 3B. Two are nearer 4B, one is nearer 3B, and they're arranged in an L shape. Connect the middle of the L to the other one near 4B for 60Hz; connect the middle of the L to the one nearer 3B for 50Hz. The last set is the other side of 3B; connect the two pads nearest 3B for 60Hz, connect the one nearest row A to the one furthest from 3B for 50Hz. For a Mark 2, it's easier. There's a 4-pole DIP switch at positin 11A on the top side of the PCB. Switch section 1 off for 60Hz, on for 50Hz. > The Sorcerer was a contemporary of the Apple II, Commodore Pet and > TRS-80 Model 1. It was unique in a number of features, including its > use of an S-100 expansion box. In many respects, it appears to have > been inspired by the SOL 20. > > Info on the web in very sparse. I have nothing but the bare CPU, and > photocopies of some manuals. I would like any info anyone has > available, software, manuals, hardware, etc. Will pay good bucks, or > trade from my vast collection of interesting stuff. I have the BASIC ROMs, the original monitor ROMs, patched (bugfixed) monitor ROMs, images of the WP PAC ROMs (anyone got images of the Dev Pac ROMS? Or a WP PAc manual? I used to have all these...). I have both Technical Manuals and the Software Manual, the smaller of the two BASIC manuals, the S100 Expansion Unit Technical Manual, notes on the hardware bugs (eg the RS232 misdesign on the Mark I, for which I have a fix), and some expansion options (eg upgrading 32K Mk1 to 48K). I'm not willing to part with manuals, but I'm happy to lok anything up for you, and the ROM images and my source code is at http://www.dunnington.u-net.com/public/ExidyROMs/ I've also got some games and other software (not much, I'm afraid, things like Breakout, Galaxians, BASIC Toolkit) which aren't on line, but might be available if you can't find anything elsewhere. I assume you've found: http://www.trailingedge.com/exidy/ http://www.heydon.org/kevan/collection/manufacturer-exidy/sorcerer.html http://www.tardis.ed.ac.uk/~alexios/MACHINE-ROOM/Exidy_Sorcerer.html http://www.lisp.com.au/~michael/exidy/ http://utopia.knoware.nl/users/stuurmn/exidys.htm http://www.digidome.nl/exidy.htm There are some errors in the last two or three pages (for example, it never used a Z80A, and there was never any version but the 2.1MHz), but still useful information. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

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Exidy Sorcerer

by pete＠dunnington.u-net.com

On May 17, 19:55, Louis Schulman wrote: > Thanks, Peter. This is very helpful. I had figured out reversing the > serial to parallel wiring, but didn't know about the dip switch > settings. Mind is obviously the Mark 2. My original one was, too. However, I sold it in 1982 and the one I have now is a Mark 1. Does yours have 48K? It's easy to add extra memory to bring it up to full spec, but there is a timing problem that affects some boards when you fit the third bank. I was unlucky and spent days trying to figure out what was wrong when I bought the extra 8 chips, so eventually I sent it to a Sorcerer dealer/repeairer and he not only modified it but gave me a diagram showing the fix. > Is there some way I could get copies of the manuals? Not very easily. I don't have access to a scanner at the moment. However, David Williams has quite a lot on his Trailing Edge website. > Also, is there > some way to create a ROM Pack? I really could use the Standard Basic > ROM pack. Assuming I burn the chip, what else is there to the circuit? That's not too hard. The Pac consists of a PCB with 4 x 2316 ROMs and a 2-chip decoder circuit, all mounted inside an 8-track tape cartridge shell. It's perfectly possible to build a replacement using a single 2764 and a 74LS10. With a little care, the bare PCB can be inserted into the cartridge slot, so you don't even need to cannibalise a "rare" 8-track cartridge. I have a drawing for such a PCB which I'll put on my website for you. Look for it at http://www.dunnington.u-net.com/public/ExidyROMs/ROMPacPCB.ps Minor caveat: although the date on the file tells me I drew this years ago, the need to use it went away and I never built a prototype. It should work, though. There are 17 places to put track pins to connect one side to the other, two places to put capacitors (a 6V 10mfd tantalum and a 100nF ceramic), at the end of the 74LS10 location, and both IC locations indicate pin 1 by a square (instead of oval) pad. The ROM images are already there, just concatenate them (in order) to make a 2764. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

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Books available

by gregorym＠cadvision.com

>I have some vintage books that are surplus to requirements, and are free* >to any list member who wants to pay shipping. They are: > <list snipped> > E-mail me off-list if >interested. Take one, take 'em all. > Sorry for replying to my own message, but that last line is misleading. I meant to say: "Take one OR take them all". You don't have to take all of them. First come, first served. Mark.

25 years, 3 months

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Books available

by gregorym＠cadvision.com

I have some vintage books that are surplus to requirements, and are free* to any list member who wants to pay shipping. They are: 6809 Assembly Language Programming, by Lance Leventhal (Osborne/McGraw Hill, 1981) Motorola MC6809-MC6809E Microprocessor Programming Manual (May 1983 printing) PL/1 Structured Programming 2nd Ed., by Joan K. Hughes (John Wiley & Sons, 1979) Structured PL/1 (PL/C) Programming, by Jean Paul Tremblay et al. (McGraw Hill, 1980) Structured Programming Using PL/1 and SP/k, by J.N.P. Hume and R.C. Holt (Reston Publishing Co., 1975) Computer Programming RPG II, by Gary Shelly and Thomas Cashman (Anaheim Publishing, 1981) Comprehensive Structured COBOL, by Gary Popkin (Kent Publishing Co, 1984) COBOL Programming A Structured Approach 2nd Ed., by Peter Abel (Reston Publishing, 1984) VAX Basic, by David Weinman and Barbara Kurshan, (Reston Publishing, 1983) 370/360 Assembler Language Programming, by Nancy Stern et al. (John Wiley & Sons, 1979) All are in good, but used, condition. Most were somebody's university textbooks at one time, so there are some marginal notations. Shipping is from T2J 5H9 (Calgary, Alberta, Canada). E-mail me off-list if interested. Take one, take 'em all. Cheers, Mark Gregory * Donations of unneeded Amiga books, magazines, hardware, or software always gratefully accepted.

25 years, 3 months

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74xx orgin

by pete＠dunnington.u-net.com

On May 17, 22:11, Tony Duell wrote: > > Yes, a common pitfall. I got bitten by that :-) And the 74150 has the > > same number and arrangement of pins as the 74ALS150, but one is 0.6" wide > > and the other is 0.3" wide! > > Most of the 24 pin chips in the 'modern' familes (things like the 74F181 > and 74HC154) are 0.3" wide. The 'traditional' ones (74181, 74S181, > 74LS154, etc) are 0.6" wide. Don't ask how I found that out. > > Suffice it to say I have commerical instruments where the PCB was set out > for a 0.6" wide chip. In said space is a header plug, soldered to which > is the 0.3" 'modern' version with the pins bent out sideways. :-) A solution I've seen is more "three-dimensional". Take one 24-pin 0.3"-wide wirewrap socket. Bend the pins so they fit into a 0.6"-wide socket. Fit new IC to "upper" socket and fit this to the "lower" one. If liked, mould "power bulge" into the hood. Or cut ventilation hole. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

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Slicing open the top of a 48T02 Sun Sparc chip to replace battery is that thing hollow or filled with epoxy?

by claudew＠videotron.ca

Hi I am considering slicing open the part epoxyed to the top of a 48T02 chip to replace or hook up a new 3VDC source. I dont wanna buy a new chip.... My plan is to use a Dremel type cutting wheel and do a "lobotomy" on the module fitted on top of the chip. Then, either connect a new 3VDC source to this (2 alkalines in a battery holder) or simply replace the cells inside. If the thing (the top module with the batt and osc) is not filled with epoxy I imagine this can be done...does anybody know if that module is "hollow" and removing the top will reveal the components inside...??? Or will I just be cutting through solid plastic/epoxy??? Other method would be to slowly grind top of module until components inside are revealed... Alternative method is revealing the wires coming from top part to chip by digging into epoxy on one side and hooking up there (from sun NVRAM faq)... Thanks Claude

25 years, 3 months

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Using audio cassette

by david_j_findlay＠yahoo.com.au

Hello I am a new member of the list in digest mode. I have read quite a bit about the early homebrew computer club days and processor techniques. I am currently designing my own computer and want to come up with a easy cheap method of mass storage. I have been thinking about hacking a tape recorder's read/write/erase heads and support equipment into my computer. I would just make a small modem thing to turn my data to sound and record it on the tape. Using a 90 minute tape, with a 10 second sector size, I would put a File allocation table at the start of the tape and that would tell the machine where to go to get a piece of data. Has anyone experimented with this sort of set up? I figured on audio tape because they are small, robust, and cheap. The computer will only be 16-bit so I don't think the speed of the storage would be a problem as my files won't be that big. It's got to be better than paper tape anyway. BTW, would anyone happen to know where I could find circuit diagrams/logic diagrams for either the PDP6 or PDP10? Thanks, David P.S. Could you please CC' your response to me? Otherwise I won't see your replies for a week... :-) -- David Findlay ---------- Email: david_j_findlay(a)yahoo.com.au Homepage: http://users.bigpond.com/nedz/ Segmentation Fault. (Core dumped)

25 years, 3 months

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destinking the computers.

by mmcfadden＠cmh.edu

Slightly OT. Yesterday I listened to a National Public Radio, NPR, segment on people who clean up crime/medical scenes. An example was a person who died in their bathroom and wasn't found for 1 month. They talked about odor removal, they use active enzymes to remove any organic remains. They wore tyvec suits, respirators, double gloves, boots and goggles. Basically they tore out the sheetrock, tile and carpet because the blood and body fluids seep everywhere. Lots of problems with maggots. Company's name was Bioclean. Two ladies with strong stomachs. I'd bet they could destink a computer. Morbid humor on, no offense intended, may not be humorous Probably could clean up after suicidal Microsoft windows programmer. Back to normal Mike mmcfadden(a)cmh.edu

25 years, 3 months

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Slicing open the top of a 48T02 Sun Sparc chip to replace battery is that thing hollow or filled with epoxy?

by pete＠dunnington.u-net.com

On May 17, 10:55, Claude.W wrote: > I am considering slicing open the part epoxyed to the top of a 48T02 chip to > replace or hook up a new 3VDC source. I dont wanna buy a new chip.... > > My plan is to use a Dremel type cutting wheel and do a "lobotomy" on the > module fitted on top of the chip. > > Then, either connect a new 3VDC source to this (2 alkalines in a battery > holder) or simply replace the cells inside. It's a single lithium cell inside > If the thing (the top module with the batt and osc) is not filled with epoxy > I imagine this can be done...does anybody know if that module is "hollow" > and removing the top will reveal the components inside...??? Or will I just > be cutting through solid plastic/epoxy??? It's solid. My colleague James Carter did this for one of his Suns, and he has a picture somewhere, showing a (replacable) battery fitted to the top. I can't find the picture on his web pages, but he mentioned it recently in response to a similar post on this list, so look through the archive... -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

2
1
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74xx orgin

by pete＠dunnington.u-net.com

On May 17, 16:43, John Honniball wrote: > I've checked my "System 74 Designer's Manual", and it's I no longer have my really old Texas TTL data books -- the oldest I have is 1982 -- but didn't one of th eold ones have a short chapter describing the evolution of TTL, S and H series, and LS? I thought it might have dates. > But an oddity did show up: the chip pinouts sometimes > differ between ordinary 74 TTL and the 74H version. A 7401 > has a completely different pinout from a 74H01, for > instance. And a 7454 has one less input than a 74H54 (it's > an AND-OR-INVERT chip). I hadn't spotted that before. Yes, a common pitfall. I got bitten by that :-) And the 74150 has the same number and arrangement of pins as the 74ALS150, but one is 0.6" wide and the other is 0.3" wide! -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

2
1
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74xx orgin

by pete＠dunnington.u-net.com

On May 15, 13:45, Hans Franke wrote: > When where the first 74xx ICs released / designed ? > Especialy when where complex chips like 744x, 748x or > 74181 first mentioned/available ? > > This may be a stuipd question, but I couldn't find any > information ... so all I have is my personal guess (~1970) > and the oldesd TTL book Philip Belben could find (1972). According to Webopaedia and at least one history website, Texas released the first SSI TTL chips in 1965 and LSTTL in 1970. It certainly must have been before 1970 becasue DEC were using 7440's, 7481's ($9 each according to the spares list), and 74Hxx in quantity for the PDP-11/20 by 1970. The PDP-8/I used TTL in 1968. And the Smithsonian site quotes "NMAH catalog number 1987.0487.128, 314, 315 1964 - TI-G00206,294, 343 documentation News release: TI Announces new Series Of Semiconductor Integrated Circuits Combining High Speed And Low Power Advantages -- Solid Circuit Series 54" Nat Semi's website history pages quote 1970 as the year they made money >from TTL 74xx series. But the earliest I can find in my Texas data books for MSI is 1972 for the 72181, same as Philip. The data sheets for the SSI are obviously older than that. Curiously, although there's lots of information on TI's own company information pages in the "Innovations" section, they don't mention TTL. The only relevant items are a press release on June 23, 1964 about granting of patents including "Features of integrated 'AND gates' and related devices" and mentioning that "Current Texas Instruments SOLID CIRCUIT? semiconductor networks contain up to 69 component equivalents formed within a single bar of ultra pure silicon material". That's not 54/74 series TTL, though, it's 51-series. The other is a reference to "1972: first ABACUS-II wire bonder, enabling high-volume IC production." There's some information on that at http://www.ti.com/corp/docs/company/history/abacus.shtml which I found very interesting as I used a manual wire bonder on a visit to Ferranti around 1972. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

3
2
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LA210 problem with the control lines

by GOOI＠oce.nl

Hi all. Yesterday I connected my LA210 Letterprinter to the printerport of a VT102. Both are set at 9600 Bd, 8 databits, no parity and 1 stopbit. However when I send some 5 characters from the VT102 to the printer, it prints many mirrored question marks and other 'strange' characters. Okay, I thought, the baudrate setting, etc. is not correct. But it is. These are the checks I have done so far. 1) The used cable is an original DEC BC22D-25. This cable is mentioned in the LA210 Letterprinter User Guide. 2) From the VT102 User Guide, I build the EIA loopback connector. It is a 25 pin D connector and has pin #2 wired to #3 and #15, pin #4 wired to #5 and #8, pin #20 wired to #6 and #22, and pin #19 is wired to #12 and #17. The VT102 passes the Printer Loopback Self-Test, ESC [ 2 ; 16 y 3) The LA210 passes the Internal Self-Test. Among others, it prints that the speed is 9600 Bd, so I know those DIP switches are set ok. It also print lines with all characters in it. 4) The LA210 I/O Loopback Tests only mentions to plug in a loopback connector. I assume I can use the same one as the one used on the VT102. The Loopback Test gives an error. The output text is: Control lines failed. (20 mA ?, jumpers ?) Data path OK Printing loopback <many lines with all characters in it> I do not understand the message "Control lines failed". I am using EIA, so it can not be a current loop problem. When I connect the BC22D to the VT102 and the LA210, the "Data Set Ready" LED on the LA210 goes on. Am I using the correct loopback connector on the LA210? Has anybody seen this problem before? I have no field maintenance print set of the LA210 .... kind regards, Henk Gooijen, PDP-11 collector http://home.12move.nl/~sh416008

25 years, 3 months

2
1
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Fwd: Alpha Computers Order

by jcook793＠yahoo.com

OK, so which one of you guys got it? :) -John --- cara <cara(a)ibuynw.com> wrote: > Reply-to: <cara(a)ibuynw.com> > From: "cara" <cara(a)ibuynw.com> > Subject: Alpha Computers Order #1269 > Date: Wed, 16 May 2001 15:09:31 -0700 > > Hello John, I am sorry to inform you that the item that you ordered, > Apple > Lisa with floppy disk, is out of stock. Please remember us for all > your > computer needs. Thank you for shopping at Alpha Computers. > > Cara Bergeson > ibuyNW.com, a division of Alpha Computers, Inc. > Phone: 503-684-1111 ext. 251 > Fax: 503-639-4386 > Email: cara(a)ibuyNW.com __________________________________________________ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/

25 years, 3 months

2
1
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Storage medium for longevity of data

by mmcfadden＠cmh.edu

I seem to remember this thread awhile back. If you search the National Bureau of Standards site there is a reference to etching data onto iridium blanks. The Mormon Church is also interesting in retaining records for > 1000 years. Also look up references to optical tape. Other references include: http://www.slis.ualberta.ca/cap99/jvarney/preserve.htm Preservation of Digital Data http://www.nla.gov.au/niac/meetings/npo95rh.html The digital storage media examined are magnetic tapes and optical disks (including magneto-optical disks). For each medium the claims of manufacturers about their longevity, results of accelerated aging tests, and observations from field sites are presented. Recent research, including that presented by Jeff Rothenberg and by the National Media Laboratory, St. Paul, Minnesota, is noted. The paper concludes that there are at present too many unknowns to commit digital data to currently-available artifacts for anything other than short-term storage. The preferred option is to direct preservation efforts towards solutions which preserve the information content - the digital 'object' - rather than the digital 'artifact'. http://www.uky.edu/~kiernan/DL/hedstrom.html Digital preservation: a time bomb for Digital Libraries Mike mmcfadden(a)cmh.edu

25 years, 3 months

1
0
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Kaypro manuals available

by tim＠arti.vub.ac.be

Thank god for this site About two years ago i got a kaypro II in excellent condition, with a lot of original disks What I am interested in is an sbasic manual, -> ave some left? If anyone has some experience with connecting a HD to it, please let me know tim(a)arti.vub.ac.be

25 years, 3 months

1
0
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Heathkit Fall 1978 catalog now on-line; H-8, H-11, H-9 and ET-3400.

by mikeford＠socal.rr.com

>I have been looking all over for the model number of a fancy digital fm >tuner that heathkit made about 1978. It was unusual because it had a keypad Heathkit AJ1510, it was in the first half of the 70's, and it wasn't very good. One sold on eBay last month.

25 years, 3 months

1
0
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Storage medium for longevity of data?

by jss＠ou.edu

This topic came up on slashdot a week or two back, and I have been thinking about it ever since. And it's even on-topic, when asked a certain way. How resilient are today's storage media? In particular, is our classic computing data (tape/disk images, scanned documents, etc.) archived adequately enough that it's going to survive the next few centuries? One slashdot poster postulated that some EMR event (possibly the next magnetic pole reversal, or some sort of solar phenomenon) could wipe out nearly all of our magnetically stored data. Another user pointed out that even CD-ROMs expire eventually. One thing that came to my mind was our venerable friend the paper tape (an example of why it pays to remember the history of computing). I think it makes a darn good solution for archiving data and locking it away in a vault for a few millenia, provided some research was put into developing a tape paper (or other material) that would last longer and store data more densely than our traditional paper tape mechanisms. Any thoughts? -- Jeffrey S. Sharp jss(a)ou.edu

25 years, 3 months

3
3
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PDP 11/34 on EBay.... NOT!!!!

by vaxman＠qwest.net

Fair warning... The 11/34 that just showed up on EBay with a buy it now price of $899 and a reserve > 12.50 isn't an 11/34... I doesn't have a CPU... I does however have a paper tape control board, an operator panel, and a bunch of bus grant cards :) clint

25 years, 3 months

1
0
0 0

Toshiba T3100/20

by sialenec＠yahoo.com

Hi there, I am having trouble getting my old Toshiba T3100 up and running. THe problem is that once it boots up it says "Incorrect Dos Version" and then "Bad or missing Command Interpreter" How can I get this thing running again? Mitch.

25 years, 3 months

2
1
0 0

Where to buy Gorilla Banana printers?

by heatond30＠hotmail.com

Hi Doug, We have a Gorilla Banana Printer! It seems to be in good shape with the dust cover, manual, and old ribbon. We also have a ton of systems and componets ,and software (the good stuff)from that era, Commador 64, 128, 5.25 drives, Atari systems, and lots of other equipment. Printers like the big blue, Commador vic and others. We have the IBM PC jr system complete with monitor, printer, side parallel car, and extensive manuals. We have a lot of stuff from the 70's and 80's MAC performa 450 complete with software manuals modem, monitor, printer-Image Writer II, also a Apple IIgs with lots of attachments 5.25 & 3.5 drives, printer all complete! Windows 3.1 tower system complete has CD-rom, 5.25 1.2 mg, 3.5 1.44mg drives 2 hard drives 2.19.mg and 83.mg. Has Sound blaster card, modem, serial and parallel cards installed. Has the Calmira Final addition GUI (windows 95 desktop) installed. Mouse, Keyboard, Monitor, lots of software installed like Word, Powerpoint, Excel, and more! We have 5 - HP smartdesk Writers Color and black inkjet printers TOO! 386 boards, ISA cards lots more. We would like to sell it all if possible! Contact us at samcgee65(a)hotmail.com Thank you, Mark McGee

25 years, 3 months

1
0
0 0

Where to buy Gorilla Banana printers?

by heatond30＠hotmail.com

Hi Doug, We have a Gorilla Banana Printer! It seems to be in good shape with the dust cover, manual, and old ribbon. We also have a ton of systems and componets ,and software (the good stuff)from that era, Commador 64, 128, 5.25 drives, Atari systems, and lots of other equipment. Printers like the big blue, Commador vic and others. We have the IBM PC jr system complete with monitor, printer, side parallel car, and extensive manuals. We have a lot of stuff from the 70's and 80's MAC performa 450 complete with software manuals modem, monitor, printer-Image Writer II, also a Apple IIgs with lots of attachments 5.25 & 3.5 drives, printer all complete! Windows 3.1 tower system complete has CD-rom, 5.25 1.2 mg, 3.5 1.44mg drives 2 hard drives 2.19.mg and 83.mg. Has Sound blaster card, modem, serial and parallel cards installed. Has the Calmira Final addition GUI (windows 95 desktop) installed. Mouse, Keyboard, Monitor, lots of software installed like Word, Powerpoint, Excel, and more! We have 5 - HP smartdesk Writers Color and black inkjet printers TOO! 386 boards, ISA cards lots more. We would like to sell it all if possible! Contact us at samcgee65(a)hotmail.com Thank you, Mark McGee

25 years, 3 months

1
0
0 0

destinking the computers.

by xds_sigma7＠hotmail.com

Well, for what it's worth, my mom and her friend are janitors for banks, and as such, I could probably get about anything... Don't leave out good old Orange Clean, which is even made right here in my state... I'd imagine a lot of those cleaning things are available at Grainger, too... Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 3 months

7
8
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D connector tirade (was: Re: Age-old ethernet equipment)

by pete＠dunnington.u-net.com

On Mar 30, 19:49, Richard Erlacher wrote: > I'm glad I don't have to explain that. There is, by the way, another more > "current" name for the 3-row, 'E'-shell connector commonly seen with 15 pins in > it in VGA applications. I'm not remembering it, though. HD-15? -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 3 months

20
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My IBM 1130

by xds_sigma7＠hotmail.com

The correct term is "urinal CAKE" not cookie... it's that round thing in urinals that is an air-freshener, etc. At least I believe thats what it does... I sure as hell have no intention to sniff it to determine the accuracy of this.. Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 3 months

6
6
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Destinking Computers

by truthanl＠oclc.org

Date: 16 May 2001 0:50:25 +0100 From: "Iggy Drougge" <optimus(a)canit.se> Subject: Re: destinking the computers. jpero skrev: ....If it stinks after this treatment, I'd have no idea what to do next. My Sugesstion: Pack it with a dryer sheet. Dryer sheets also repell mice. I have a friend who does this to the interior of his 69 SS Chevelle. He covers the car on a cement floor in his pole barn. Dryer sheets under the seats got rid musty smell, and he also realized lack of mouse dropings. Prior years he'd find seat stuffing packed in a nest on the intake manifold, or some other unlikely place. Larry Truthan Digest subscriber truthanl(a)oclc.org

25 years, 3 months

1
0
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My IBM 1130

by xds_sigma7＠hotmail.com

Hey, I'm personally totally perplexed as to where it came from in the first place... I just wish I could afford the 1130 but I know someone will come out with some large amount of money and as always I'll miss out on another opportunity... I guess I could sell my PDP-8/i and some other stuff or something, except then I'd never have another PDP-8/i.. ugh.. I tried to look up weights, but IBM actually doesn't have info on the 1130 in the sales manual anymore, unfortunately. Will J _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 3 months

1
0
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My IBM 1130

by xds_sigma7＠hotmail.com

Good God, some of us read e-mail while we are *eating*... ugh! _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 3 months

1
0
0 0

Need help identifying a MOSTEK chip

by pete＠dunnington.u-net.com

On May 16, 8:50, Norm Anheier wrote: > I need help identifying the function (ie what is it!) of a MOSTEK chip, > part number MK2488P with date code (?) 7429. If it's 1974, its a little > early for my data books. I can't find MK2488P. Nearest I can see is MK2400P (a 256-word x 10-bit mask ROM) or MK2408P (2400 programmed as a character generator ROM). -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

1
0
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My IBM 1130

by mcguire＠neurotica.com

On May 16, Will Jennings wrote: > The correct term is "urinal CAKE" not cookie... Oh, that's an entirely different product. The urinal *cookies* are only intended as a light snack, or perhaps for...dipping. "Stays crispy in milk!" [dave ducks under his desk to avoid being pelted with flying fruit] -Dave McGuire

25 years, 3 months

1
0
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74xx orgin

by pete＠dunnington.u-net.com

On May 15, 20:54, Sipke de Wal wrote: > If guess Fairchild was the company that first made the 54/74xx series > The 54xx had mil. specs the 74xx had consumer specs. Nope, TI made the first 54/74. Fairchild made other things, some of them before TI, but not 54/74 TTL (a least, not before Texas). -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

2
1
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Console bulkhead battery source

by ajp166＠bellatlantic.net

simpler... buy a threecell pack intented for cordless phones. Ratshack sells them and there are various form factors but they work. FYI don't worry the capacity, anything will do even three AA nicads (500mah) in a battery box(holder). Allison ------Original Message------ From: Paul Thompson <thompson(a)mail.athenet.net> To: classiccmp(a)classiccmp.org Sent: May 16, 2001 1:20:42 PM GMT Subject: Re: Console bulkhead battery source Good idea. With other battery packs I tried to use off the shelf batteries to make a new pack but had very poor luck in getting the solder to stick to the battery. It seemed like a spot weld was used to attach the wire rather than normal solder. I assume that your idea uses the existing leads in the battery pack to get around this problem. On Tue, 15 May 2001, Don Maslin wrote: > Get the four cell package, use your razor knife to remove the fourth > battery, resolder the lead from the fourth to the third cell and > install. --

25 years, 3 months

1
0
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Inside Altair BASIC - interesting!

by jfoust＠threedee.com

http://www.rjh.org.uk/altair/4k/ I especially like the way he points out that the error numbers from the pre-Microsoft 4K BASIC are still used in Visual BASIC today. Related articles: http://www.theregister.co.uk/content/4/18915.html http://www.theregister.co.uk/content/4/18909.html - John

25 years, 3 months

1
0
0 0

Teledisk not working

by lgwalker＠look.ca

> > These assholes even claim that: > > > > "TeleDisk was developed to assist the U. S. Treasury Department > > in the processing of computer evidence tied to floppy diskettes." > > > > Does anybody know if this is *true*?! I always thought it was > > developed to distribute software via BBS's (and other electonic > > means). > > I believe it to be 100% false. The story I remember (probably read in > some Sydex documentation) is that Teledisk was written to help support > the CP/M disk reading software (was that called 22disk?). The idea was > that if you had a CP/M disk in a format that wasn't supported by 22disk, > you could use Teledisk to mail an image of the disk to Sydex so they > could attempt to add the format to later versions. > > In any case, teledisk is not that useful for extracting information from > a non-PC disk (which is presumably what the police, etc, would want to > do). I can really see the point of being able to make a copy of a disk > for some machine they don't have. Some program like anadisk, which lets > you read sector-by-sector, make disk images, and so on, would be a lot > more useful to them I would have thought. > > -tony > Someplace among my 5.25 disks I have a zipped early shareware copy of Teledisk that I downloaded from a BBS around 92-93. I remember it had some sort of lame disclaimer to the effect that it was not to be used to circumvent copyright restrictions. I thought at that time it was just a legal cover for their asses and certainly looked like a way around copy-protection. larry Reply to: lgwalker(a)look.ca

25 years, 3 months

4
5
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Need help identifying a MOSTEK chip

by norm.anheier＠pnl.gov

I need help identifying the function (ie what is it!) of a MOSTEK chip, part number MK2488P with date code (?) 7429. If it's 1974, its a little early for my data books. Thanks Norm

25 years, 3 months

1
0
0 0

Rescue in Madison/Monona, WI, USA

by jfoust＠threedee.com

A friend is moving from the Midwest to the West coast, so he's liberating himself of all his antique computers except for his IMSAI. This means the rest goes... this includes two Kaypros, a TRS-80 Model I w/Expansion Interface, an Apple ///, and maybe a TRS-80 Color Computer, plus various other stuff. No charge if you say "John Foust told me about it." :-) They're having a rummage sale starting tomorrow. Anything left goes on the curb. Questions to Mike and Becky Winter <mwinter(a)execpc.com>. (Battlebot freaks may recognize his name.) Location is http://www.switchboard.com/bin/cginbr.dll?ID=101809742&MEM=1&FUNC=MORE&TYPE… - John

25 years, 3 months

1
0
0 0

looking for SS-50 people, especially non-SWTPC

by chomko＠greenbelt.com

I'm wondering who collects SS-50 bus stuff. I'm interested in who has systems like Smoke Signal Broadcasting (Chieftain), Helix, Gimix, Midwest Science Instruments (MSI). Thanks, Eric

25 years, 3 months

3
4
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Fwd: Completed Floppy Disk Controller Design

by jhellige＠earthlink.net

For those interested in the SWTPc and SS-50 bus machines: >Status: RO >Sender: fufu-l(a)telia.com >Reply-To: fufu-l(a)telia.com >Date: Mon, 14 May 2001 08:47:25 -0700 >From: "Michael Holley" <holley(a)mail.hyperlynx.com> >To: Multiple recipients of fufu-l <fufu-l(a)telia.com> >Subject: Completed Floppy Disk Controller Design > >I have finished the design of a new floppy disk controller for the S30 I/O >bus. The card emulates the SWTPC DC-4 with a few additions. The design uses >a Western Digital WD2797 FDC that supports double density format. The WD2797 >is a superset of the WD1797 and WD1691 and is software compatible. > >The card will fit in an old 6800-style case or the newer 6809-style case >with the connectors coming out the back. The clock frequency is programmable >so the card should work with 3.5-inch drives. > >The design is complete but needs to be reviewed.(There are errors and >omissions.) After a few weeks of review I will have 2 (or 4) boards made. I >am looking for someone who has a system with SS30 I/O bus to help debug the >board. After the design is tested I will order 10 or so boards with >silk-screen and solder mask. > >The design documents can be found at: >http://members.aol.com/swtpc6800/FDC2/FDC_Index.htm >I still have some design documents in process and will add them when they >are done. > >The difficulty I was having with a discrete logic design was board layout. I >was going to use some 20-pin programmable logic devices such as the 16V8 but >programming them is difficult. (I have an old Data I/O Model 29 programmer >but I haven't turned it on in 10 years.) I was looking for an in-circuit >programmable device. > >I decided to use the Xilinx XC9500 CPLD family. They are low cost ($6), the >development software is free, and the programming hardware is simple. >Another reason is that I have worked with these devices since they were >developed by Plus Logic in the late 1980s. Somewhere I have a Plus Logic >2020 engineering sample. The development software is based on the ABEL and >Synario software that I developed at Data I/O. > >I chose the XC9572, which has 72 Macrocells and comes in an 84-pin PLCC >package. This device holds all of the discrete logic devices needed in the >design. The timer IC and one-shot IC are external along with the buffers. I >could have connected the disk drive directly to the CPLD but I felt the low >cost buffers would be easier to replace in the future. The device is >re-programmable so design changes are easy. I am only using about half of >the device now. > >For the PCB layout I went with ExpressPCB because they have free software >and they do low cost double-sided boards. A friend of mine has had good luck >with them. I have access to very high-end PCB layout software at work but I >want the design to be public domain. (If I published the design files in >PADS format you would have to buy a $10,000 PADS PowerPCB software package >to modify them.) > >After the layout is done I will publish the PBC file. If someone wants to >review the current design I can email you the file. > >The only rare part in the design is the WD2797; I bought 10 of them from BG >Micro before I started the design. The rest of the parts are available from >Digi-Key with exception of a few ICs that I found at Jameco. The complete >kit of parts cost $50 plus about $40 for the circuit board. I am going to >acquire enough parts to build 10 boards. > >I still need to write the calibration procedure and add the required test >point to the board. I just noticed a trace clearance problem near pin one of >the 34-pin connectors. > >The DDEN line is controlled by the CPLD so we can add the logic for MS-DOS >floppies. This logic in not in the CPLD yet. >----------------------------------------------- >Michael Holley holley(a)hyperlynx.com >Innoveda >Phone: (425) 869-2320 Fax: (425) 881-1008 >Direct Line (425) 497-5075 >----------------------------------------------- >-- >FLEX & UniFLEX Users' mailing List >http://www.flexusergroup.com/ >http://w1.503.telia.com/~u50302970/ > > -- Collector of Classic Microcomputers and Video Game Systems: Home of the TRS-80 Model 2000 FAQ File http://www.geocities.com/siliconvalley/lakes/6757

25 years, 3 months

1
0
0 0

processors.

by geoffr＠zipcon.net

looks like they are all spoken for, I will be getting back to those that have already emailed me to make arrangements to got them to y'all. :)

25 years, 3 months

1
0
0 0

Intel 4004

by per_son＠fuse.net

Dear Dwight, I have just obtained a C4004 and its supporting chips and am very interested in learning how to write some code for it. I read from http://www.classiccmp.org/mail-archive/classiccmp/1999-02/0689.html that you have made some tools to do this. I am an EET student so I don't have a whole lot of experience in programming. I have written machine code for the Motorola 6800 series but that's about it. I am VERY interested in learning more about it though. If I can pull it off I would like to do this as a final project for school. My main problems are actually writing and compiling code and coming up with the two phase clock that this chip requires. If you can help me at all it would be GREATLY appreciated! I am willing to pay for your software as I am sure it took a lot of hard work to create it. Thanks, Josh

25 years, 3 months

2
1
0 0

destinking the computers.

by xds_sigma7＠hotmail.com

OK, well so far none of those solutions seem likely to help me... The computer in question has a unique odor, not mouse/mold/cigarette/anything else mentioned before generated, nor is it one I recognize, and I've driven it down the road in the back of a pickup mostly disassembled at speeds in excess of 45MPH... And it still FREAKING REEKS! I'm not making a joke, but my Wang really smells... And its a funky smell, sometimes not present, and other times you can smell it even with the front door shut... I'd really like to eradicate the odor, though much joke potential will be lost... Suggestions? _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 3 months

6
5
0 0

Token Ring coax?

by optimus＠canit.se

While oogling all the pretty Apollo pictures at http://www.citi.umich.edu/apollo-archive/photo-gallery/ , I found two puzzling pictures: http://www.citi.umich.edu/apollo-archive/photo-gallery/apolloXrnsXautolab.j… http://www.citi.umich.edu/apollo-archive/photo-gallery/apolloXrnsXautolab2.… They're described as a "Token Ring Remote Network Switch (RNS)", but then what are all that coaxial wiring doing there? All TR which I've encountered has been either TP or those frightening IBM connectors. What is the meaning of all this? -- En ligne avec Thor 2.6a. JavaScript has been developed to show scrolling messages on your pages. It should have been named ScrollerScript, but as it came out more or less the same time when the hype on a programming language called Java (poor man's SmallTalk raped by C++ which is expected to solve all problems of the world, including traffic, pollution and AIDS) started, it's creators decided to use the term ``Java'' in it's name, too. -- README for the HTML preprocessor "hsc"

25 years, 3 months

4
4
0 0

IBM CICS manuals or other information

by BeaumontDawson＠aol.com

Hello out there, does anyone know where I can get hold of information on the follwing old IBM products (manuals/microfiche etc) products ----------- 5798-AXC 5796-AEF manuals ---------- SH20-1358 G320-8088 SN20-6277

25 years, 3 months

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74xx orgin

by Hans.Franke＠mch20.sbs.de

When where the first 74xx ICs released / designed ? Especialy when where complex chips like 744x, 748x or 74181 first mentioned/available ? This may be a stuipd question, but I couldn't find any information ... so all I have is my personal guess (~1970) and the oldesd TTL book Philip Belben could find (1972). Anyone more informed ? Gruss H. -- VCF Europa 3.0 am 27./28. April 2002 in Muenchen http://www.vcfe.org/

25 years, 3 months

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74xx orgin

by ajp166＠bellatlantic.net

From: Sellam Ismail <foo(a)siconic.com> >I think you guys are going to have to use DTL. If TTL was even around in >1970, it was probably pretty expensive at first. It existed in 1970. By 1973 it was widely used. My Yasu Freq counter (good to 350mhz) was purchased in 73 and contains: 7490 decade counter (usually good to 35mhz then) 7475 quad latch 7441 Decimal decoder and Nixi driver. 7400 7404 74Sxx parts were a year or two later. Allison

25 years, 3 months

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DRV11-WA info

by xds_sigma7＠hotmail.com

Hey I just felt compelled to make a joke.. and keep in mind it was like 1AM my time... Is there a SNAFU register as well? Just wondering... I need to have SEX with all my Interdata's/Perkin-Elmer's... heh, thats the "System Excerciser" _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 3 months

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FDCs -- was Re: TELEDISK Problem

by pete＠dunnington.u-net.com

I've not had the time I hoped to sort through my FDCs* and pick likely candidates for 8" operation (and SD for 5.25" as well), but I do want to thank Tony, Allison, Don, and everyone else who provided useful information. * Partly because I spent most of the weekend repairing two 8" drives -- one of which was only bust because of my own carelessness :-( -- and sorting out surplus equipment which I'll offer to the list in due course. -- Pete Peter Turnbull Network Manager University of York

25 years, 3 months

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Apollo Token Ring

by ndiablo＠diablonet.net

As stated before, this is a just a daisy-chain ring type network (that is, the ring is both physical and logical) that operated using a token-passing scheme. It was proprietary to Apollo as far as I know. I've got a few of these cards laying around, unfortunately without machines to go with them. They're full-length ISA-bus cards with something like a 6W2 (six pins and two BNC-type connectors ala a 13W3 monitor connector) that one would connect a small dongle to. The dongle has two BNC ports on it ("in" and "out"). Interesting stuff... --Sean Caron (root(a)diablonet.net) | http://www.diablonet.net

25 years, 3 months

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destinking the computers.

by jeff.kaneko＠juno.com

Oh yea-- that's the same stuff they use in Hospitals, right? I always wondered why they all smelled *exactly* the same :^). Isn't that stuff usually allowed to 'wick out' a cotton pad stuck in the bottle? Jeff On Tue, 15 May 2001 15:16:45 -0400 "Michael Nadeau" <menadeau(a)mediaone.net> writes: > Used car dealers have something that they use to get rid of nasty > odors--cigarette smoke, etc. I don't know what it is, but any > service > department should be able to tell you what it is and how to get it. > > It generally works at eliminating the offending odor, but it leaves > its own > sweetish smell behind. > > --Mike ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 3 months

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Old chips for new project.

by chronic＠nf.sympatico.ca

I'm interested in the exact same thing you are at this point. I'm workin on a 6502 board, i hope to have it finished soon, i may put some schematics on my web page. For info about the 6502 and projects, you cannot beat http://www.6502.org, Chris Ward's 6502 board in particular. For 6502-related books, the best i have found have been Programming the 6502 and 6502 Applications, by Rodnay Zaks. Keep an eye out, they may show up on EPay if you're lucky. As for the processors themselves, I recycled my 6502 out of an old 1541 disk drive that didn't work, and i recently found a Z80 in a PC/AT keyboard i cannibalized (albeit for the LEDs, how ironic). Anyone else out there have any advice/suggestions??? -Lanny ----- Original Message ----- From: <rhudson(a)cnonline.net> To: <classiccmp(a)classiccmp.org> Sent: Monday, May 14, 2001 10:02 PM Subject: Old chips for new project. > Hi all! > > It's not exactly classic, but... > > Are any of the 8 bit processors still available? I would like to scratch build > a z80 or 6502 or somthing board to hook up to my > > vt220 (ob classic??) > > I have **no** hardware experince (well I can solder, but beyond that...) > > Hints?? > > Thanks! > > > > > > --------------------------------------------- > This message was sent for FREE using Shot-mail. > http://www.shot-mail.com/ > > >

25 years, 3 months

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Infoserver 1000

by dittman＠dittman.net

I just got an external Infoserver 1000. Can anyone provide the pinouts for the power connector, or even better, does anyone have a spare power supply? -- Eric Dittman dittman(a)dittman.net

25 years, 3 months

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destinking the computers.

by mcguire＠neurotica.com

On May 15, Vance Dereksen wrote: > MMMmmmMMMmmmMMM... Alconox. Tastes great with milk! -Dave McGuire

25 years, 3 months

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NeXTs?

by spectre＠stockholm.ptloma.edu

Whatever happened with all those NeXTs that were bought at the auction? I haven't heard anything since :-/ Still interested! -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- FORTUNE: You will be hit with a lot of money. Avoid armoured trucks. -------

25 years, 3 months

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destinking the computers.

by mcguire＠neurotica.com

On May 15, jpero(a)sympatico.ca wrote: > Alcohol do very little to dislodge junk and only kills bugs and > mildew but the remains stays there and still smell. > Even the windex help very little it's consumer grade. Very weak. > > What I'm looking for is real thing that oxidizes the stink and get > all the dirt and junk floating out of hidden cravities with a flush. Perhaps something like Alconox? I've seen that stuff do amazing things. -Dave McGuire

25 years, 3 months

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VCF East 1.0 - July 28/29 in Marlborough, Massachusetts!

by RCini＠congressfinancial.com

Who's going to VCF East?? I was toying around with going and wanted to see who from the list would be there. Rich -----Original Message----- From: Vintage Computer Festival [mailto:vcf@siconic.com] Sent: Wednesday, May 09, 2001 12:46 AM To: Classic Computers Mailing List Subject: VCF East 1.0 - July 28/29 in Marlborough, Massachusetts! It's finally official! VCF East 1.0 July 28-29, 2001 10am to 5pm daily Best Western Royal Plaza Hotel and Trade Center Marlborough, Massachusetts Admission $10 daily at the door Speakers Want to give a talk at VCF East 1.0? E-mail me at <sellam(a)vintage.org>. Exhibitors Sign-up your exhibit at http://www.vintage.org/2001/east/exhibit.php3 Vendors Want to sell vintage computer stuff at VCF East 1.0? Contact me at <vendor(a)vintage.org>. More info to come soon, including updated VCF East 1.0 web pages with speaker schedule, exhibits and more! Sellam Ismail Vintage Computer Festival ---------------------------------------------------------------------------- -- International Man of Intrigue and Danger http://www.vintage.org

25 years, 3 months

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