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

by edick＠idcomm.com

I've been sifting through the "heap" some more and find I have a couple of the TI calculators, a '58 and a '59 and a Printer for these two. Does this sort of thing interest anyone? I bought these when they were the best TI had to offer, but don't use them much because there's only one functional (sort-of) battery pack between them. If you're willing to spring in advance for shipping and maybe some packaging material, they're yours. Dick

27 years, 2 months

1
0
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Commodore wrist watches

by ds_spenc＠alcor.concordia.ca

I just found this in newsgroup comp.sys.amiga.misc. Respond to the original sender, not to me. ----------------------------------------------------------------------- Subject : Commodore wrist watches Date : Sun, 09 May 1999 21:40:45 -0400 From: Stephanie Chorny <chorny(a)ilap.com> The Toronto PET Users Group has the opportunity of acquiring a quantity of Commandeer wrist watches (circa 1980 I believe)- these are new in the original packaging. TPUG wishes to make these historic items available to the Commodore community at a reasonable price (and hopefully not at a loss!). The purchase price has not yet been determined and the purpose of this communication is to find out: a) is there an interest on your part in obtaining this watch? b) approximately - what is the going price OR what would you pay for a 'mint' Commodore wristwatch? If you could provide a response to these questions, TPUG will be able to see if it will be financially feasible to proceed with this acquisition. I hope many of you will be able to help TPUG in this decision making process. Please reply in this newsgroup or directly to me at chorny(a)ilap.com. Thanks, Ernie Chorny, TPUG Board of Directors ----------------------------------------------------------------------- -- Doug Spence ds_spenc(a)alcor.concordia.ca http://alcor.concordia.ca/~ds_spenc/

27 years, 2 months

1
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manuals available

by Jgzabol＠aol.com

Hi Lawrence, I would like to have one of the CDC Sabre disk drive manuals. My Bull (Honeywell) machine has some of these, I believe, or at least rather similar drives. I could either pick it up mid-June, or else if you would send it my address is John G. Zabolitzky Muxelst. 4 81479 Munich Germany Of course I am happy to pick up any cost and effort involved! Regards John

27 years, 2 months

1
0
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Univac stuff available

by aknight＠mindspring.com

Hi, For those of ya'll out there into the really big iron, I have a few pieces of Univac stuff available: First is a complete Univac model 1710 key punch machine, including a manual with schematics etc. I do not know if it actually works, and would recommend it be checked out before powering up as it has several motors in it. This is way too large to ship, though, so if you're interested you would need to pick it up at my house in central NC. I can provide digital images of the unit upon request. Second is a Sperry Univac punched card reader. This is a desktop-unit, (20"x15"x12") so should be UPS shippable. I don't have any docs. on it. or any cabling (it has a "big green connector" on the back). I've taken digital images already and can provide them upon request. Third is a Sperry Univac CRT terminal, if there's any interest in something like this let me know and I'll get more info. on it. Fourth is a keyboard from a Univac key punch machine (probably either a 1610 or 1710). I didn't "trophy" this myself (as per earlier discussion), the rest of the machine was already gone. Still, it may be an interesting relic for those of you who are interested in 1960's computer stuff. Those of you who've seen my previous postings know I'm primarily interested in very early electronic calculator and certain early microcomputer stuff. I have a "want" list on my web page, and would consider trades for some of the items on my list. Recognizing that not everybody has a stash of old calculators, I'd consider monetary offers as well, but, please, >from the U.S. only. Thanks, Alex Knight Calculator History & Technology Archive Web Page http://aknight.home.mindspring.com/calc.htm

27 years, 2 months

1
0
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Mystery board and drives

by pete＠dunnington.u-net.com

On May 9, 16:40, Stan Pietkiewicz wrote: > They are indeed 2 * 50 pin headers, with a 4 position switch between them... > Another reply suggests it would be Unibus... When I have time, I'll dig out my TC02 manual -- I guess the switches will be similar. I'm still of the opnion this TU03 is Q-bus. Does it have an empty DIL socket near one of the edge connectors? Does it have a couple of other switch packs? (I'm wondering how much like my TC02 it is.) > I'm not planning on plugging it into my MicroVAX 3600 until I know for sure.... Probably wise :-) > > 975002 looks like an IPI or SMD drive number, but it doesn't quite match > > any in my lists. Are there any other numbers? What kind of connectors are > > on it? > > The interface connectors are a 50 pin ribbon connector. Other numbers... none > that I found... > Another message suggests that they are IPI-2... Sorry, I can't be any more help with these. -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 2 months

1
0
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Mystery board and drives

by pete＠dunnington.u-net.com

On May 8, 23:41, Stan Pietkiewicz wrote: > Subject: Mystery board and drives > In my scrounging trips, I've managed to pick up the following mysteries: > > 1) A quad-height Qbus?? (Unibus?) Emulex TU03. I first thought this > might be a SCSI controller, but a closer look indicates that it probably > isn't. This board is populated with mostly 14 and 16 pin DIPs, a couple > PALs, 40 pin DIPs, and 28 pin PROMs. My next guess would be a tape > drive interface..... Almost certainly Q-bus, since it's quad-height (all the Unibus Emulex controllers I've seen are hex), and T means Tape. I'd guess it's a TU10 emulator or similar. What are the connectors like? If it has 2 x 50-way headers, it'll be a Pertec interface. BTW, was somebody looking for the Pertec interface pinouts a few days ago? I found the ASCII and PostScript files if anyone needs them... > 2) A couple of Seagate hard drives, complete with a power supply on a > mounting channel. These are labelled: Equipment No.: PA4B2A, and on the > drive itself: 975002-001. What are these?? I'm pretty sure there not > SCSI, but other than that, I'm puzzled.... 975002 looks like an IPI or SMD drive number, but it doesn't quite match any in my lists. Are there any other numbers? What kind of connectors are on it? -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 2 months

2
1
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Mystery board and drives

by jeff.kaneko＠juno.com

On Sat, 08 May 1999 23:41:42 -0400 Stan Pietkiewicz <stanp(a)storm.ca> writes: >2) A couple of Seagate hard drives, complete with a power supply on a >mounting channel. These are labelled: Equipment No.: PA4B2A, and on >the >drive itself: 975002-001. What are these?? I'm pretty sure there not >SCSI, but other than that, I'm puzzled.... What size are they? Are they 8" or 5.25? If it is 5.25" (likely) then it looks like it is an "Elite" class IPI-2 or SMD drive (unclear). One reference says IPI, another implies SMD. The nearest equipment # match is for PA4B/F, and this is an IPI-2, 1.2 gig drive. (ST-41201K). Hopefully, someone will have more accurate info. > >Stan > > ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]

27 years, 2 months

2
1
0 0

Teac FD-55GFR 5.25" floppy drive

by mark_k＠iname.com

Hi, On Fri, 7 May 1999 Tony Duell wrote: > Take off the spring. I believe that you can normally take the collet > apart further, but this isn't in the manual. Apply a smear of grease > (either plastic grease or vaseline) to the spindle and reassemble. Put > the spring on with the smaller end against the collet. Tried doing that, and it didn't help. It turns out that the C-clip was vibrating, causing the noise; I should probably have figured that out sooner. Putting some grease in the groove that the clip fits into solved the problem. I guess using a hot-melt glue gun would do the job too. (Maybe this info will be of use to someone in future?) -- Mark

27 years, 2 months

2
1
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PDT-11/150

by allisonp＠world.std.com

<The floppy disks are 8" RX01 compatible drives. The interesting thing is <that this device can format the disks, not by some special format command <procedure... it formats a sector when it writes it... It happens to use a 1773 floppy controller that can format, there is also local ram and an 8085 micro to make the disk appear smarter. <The on-board ROMs know about RT-11 Queue elements, so the RT driver <simply calls the ROM to handle the I/O, and the ROM returns if there <was an error, or when the request is complete. Between the Disk system with it's 8085 and the DL compatable IO that also has its own 8085 Plus either 3 ot 6 2651 usarts) it's easy to see how the system is smarter in some places. for a small system that makes it unique for it's time. The same basic bard set was used in the PDT-11/110(MOP loaded) and 11/130 (TU58 tape) the main difference was the use of TU58 (unique with a parallel interface) and some minor rom level code to boot it. <I don't know of anything else which ever ran on it... (I would be <interested to know if there ever was). I head someone had COS running in it. In theory is a vanilla 11/2 with 28KW of ram and a series of DL ports and a mass storage device that is sorta RX01(two 256k floppies RX01 format). Unless you used DDCMP to another system storage would be the limiting aspect. NOTE: expansion is not possible, there is no externally acccessable bus or expansion port. I have the PDT11/130 version and several boards for PDt150/130 as spares. Allison

27 years, 2 months

1
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PDT-11/150

by allisonp＠world.std.com

<OK, I just picked up a PDT-11/150 today for $5 at a local junk store. I <know that it is some sort of PDP-11, but that is about the extent of my <knowledge. Main thing I'm wondering at the moment is what was its intende <use? It's a PDP-11 of the LSI-11 base chipset(no fis but it can be hacked in). <Also what OS's run on it? I would guess RT-11 will run on it, but not muc <else. Rt11 most versions. Don't know if there wer others. The disk system I think is the only RX01 compatable DEC did that could actually format a blank disk. Allison

27 years, 2 months

1
0
0 0

Apple Mouse

by owad＠caesarville.net

>Speaking of which, does >anyone here know of a program called Catalyst, designed to imitate a mac >on a //c? I've heard of it (in fact, I think I own a copy). Isn't Catalyst just a program launcher? Tom Owad

27 years, 2 months

3
2
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PDT-11/150

by healyzh＠aracnet.com

OK, I just picked up a PDT-11/150 today for $5 at a local junk store. I know that it is some sort of PDP-11, but that is about the extent of my knowledge. Main thing I'm wondering at the moment is what was its intended use? Also what OS's run on it? I would guess RT-11 will run on it, but not much else. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

27 years, 2 months

2
1
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PDT-11/150

by CLASSICCMP＠trailing-edge.com

>>Also what OS's run on it? I would guess RT-11 will run on it, but not much >>else. >I don't know of anything else which ever ran on it... (I would be >interested to know if there ever was). There is support for running tasks on PDT's via RSX-11S. While that's an operating system, it *isn't* a development environment :-). Tim.

27 years, 2 months

1
0
0 0

Mystery board and drives

by CLASSICCMP＠trailing-edge.com

>1) A quad-height Qbus?? (Unibus?) Emulex TU03. I first thought this >might be a SCSI controller, but a closer look indicates that it probably >isn't. This board is populated with mostly 14 and 16 pin DIPs, a couple >PALs, 40 pin DIPs, and 28 pin PROMs. My next guess would be a tape >drive interface..... This is a TC13. A Unibus Pertec-Formatted tape controller, emulating TS11/TU80. >2) A couple of Seagate hard drives, complete with a power supply on a >mounting channel. These are labelled: Equipment No.: PA4B2A, and on the >drive itself: 975002-001. What are these?? I'm pretty sure there not >SCSI, but other than that, I'm puzzled.... What sort of connector? If a 60-pin and a 26-pin, then they're SMD. The "9750" part of the part number sounds like a CDC part number - Seagate bought out CDC's disk drive business many years ago. Tim.

27 years, 2 months

1
0
0 0

Mystery board and drives

by stanp＠storm.ca

In my scrounging trips, I've managed to pick up the following mysteries: 1) A quad-height Qbus?? (Unibus?) Emulex TU03. I first thought this might be a SCSI controller, but a closer look indicates that it probably isn't. This board is populated with mostly 14 and 16 pin DIPs, a couple PALs, 40 pin DIPs, and 28 pin PROMs. My next guess would be a tape drive interface..... 2) A couple of Seagate hard drives, complete with a power supply on a mounting channel. These are labelled: Equipment No.: PA4B2A, and on the drive itself: 975002-001. What are these?? I'm pretty sure there not SCSI, but other than that, I'm puzzled.... Stan

27 years, 2 months

1
0
0 0

PDT-11/150

by mbg＠world.std.com

>OK, I just picked up a PDT-11/150 today for $5 at a local junk store. I >know that it is some sort of PDP-11, but that is about the extent of my >knowledge. Main thing I'm wondering at the moment is what was its intended >use? It is a PDP-11, using the LSI-11/2 (and 11/03) chip set. It can have up to 60kb of user-available memory, a console line (programmed like a DL), 3 other serial lines, an asynch/sync line and a printer port. The floppy disks are 8" RX01 compatible drives. The interesting thing is that this device can format the disks, not by some special format command procedure... it formats a sector when it writes it... The on-board ROMs know about RT-11 Queue elements, so the RT driver simply calls the ROM to handle the I/O, and the ROM returns if there was an error, or when the request is complete. >Also what OS's run on it? I would guess RT-11 will run on it, but not much >else. I don't know of anything else which ever ran on it... (I would be interested to know if there ever was). When you put in a PDT-bootable diskette, you type '@@' (two at-signs) at the console terminal to cause it to boot. I have heard from some that a version with EIS/FIS is called a Mini-Minc... I have several PDTs that I have upgraded myself. Otheriwse, if you locate a EIS/FIS emulator written years ago by Ian Hammond, you can get EIS/FIS programs to run on it. 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 | +--------------------------------+-------------------------------------+

27 years, 2 months

1
0
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info wanted: Motorola "Educational Computer"

by rigdonj＠intellistar.net

Hi again, More of yesterdays finds. Picked up a pile of AIM 65 computers with the keyboards and power supplies all mounted on sheets of plywood. I found one Motorola "Educational Computer" in the pile. It says "Copywrite 1981 by Motorola, Inc." on it and has a 68000L8 CPU. Unlike the AIMs, it does not have a display or keyboard. How did you interface to one of these? Does anyone have the pinouts and/or the instructions for this? Joe

27 years, 2 months

3
3
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MINC-11 Bits

by jeff.kaneko＠juno.com

ARe MINC-11 parts scarce? Anybody out there with one of these? Also: Whazza 'FSD' disk drive? Jeff ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]

27 years, 2 months

3
2
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info wanted: Motorola "Educational Computer"

by jeff.kaneko＠juno.com

Naw, no docs, just the thing. :^P On Sat, 08 May 1999 15:48:07 Joe <rigdonj(a)intellistar.net> writes: >Kewl! Did you get any manuals or pinouts for it? > > > Joe > >At 02:11 PM 5/8/99 -0500, you wrote: >>Yeah, There's one just like it living in the 68000 trainer >>I got from wirehead last fall. Too kewl. >> >>On Sat, 08 May 1999 12:48:10 Joe <rigdonj(a)intellistar.net> writes: >>>At 06:01 PM 5/8/99 +1, Derek wrote: >>> >>>>Motorola used this term for several 68K and 68xx SBC systems. >>>>A good information is at >>>>http://people.delphi.com/paulrsm/68k/mecb/mecb.htm >>> >>> Bingo! That's it. The picture matches it exactly. Thanks for the > >>>URLs. >>> >>> Joe >>> >> >>___________________________________________________________________ >>You don't need to buy Internet access to use free Internet e-mail. >>Get completely free e-mail from Juno at >http://www.juno.com/getjuno.html >>or call Juno at (800) 654-JUNO [654-5866] >> > ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]

27 years, 2 months

1
0
0 0

archaic device - anyone have doc's???

by edick＠idcomm.com

sorry about the mistitled post sent earlier . . . Dick -----Original Message----- From: Richard Erlacher <edick(a)idcomm.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Saturday, May 08, 1999 3:57 PM Subject: Re: manuals available >I've run into Intersil's ICM7228 once again and find my data book doesn't >cover that number. It's date coded '87, so It's probably in the last book I >got from Intersil before they were acquired by GE. > >Has anyone got a complete sheet on this part? I believe it is a >multi-decade counter/display driver, or maybe just a display driver. > >thanx > >Dick >

27 years, 2 months

2
1
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info wanted: Motorola "Educational Computer"

by jeff.kaneko＠juno.com

Yeah, There's one just like it living in the 68000 trainer I got from wirehead last fall. Too kewl. On Sat, 08 May 1999 12:48:10 Joe <rigdonj(a)intellistar.net> writes: >At 06:01 PM 5/8/99 +1, Derek wrote: > >>Motorola used this term for several 68K and 68xx SBC systems. >>A good information is at >>http://people.delphi.com/paulrsm/68k/mecb/mecb.htm > > Bingo! That's it. The picture matches it exactly. Thanks for the >URLs. > > Joe > ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]

27 years, 2 months

2
1
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manuals available

by lemay＠cs.umn.edu

I have some old hard drive manuals available, if anyone wants them. Otherwise they will probably be thrown away. Ciprico Rimfire manuals for the 3200 series. Control Data CDC EMD/SABRE eight-inch module drive PA8xx Fujitsu M2351A/AF mini-disk drive Multiple copies are available for everything except the Fujitsu manual. -Lawrence LeMay lemay(a)cs.umn.edu

27 years, 2 months

1
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info wanted: Motorola "Educational Computer"

by emu＠ecubics.com

Hi, -----Original Message----- From: Hans Franke <Hans.Franke(a)mch20.sbs.de> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Saturday, May 08, 1999 10:03 AM Subject: Re: info wanted: Motorola "Educational Computer" >(BTW: >http://people.delphi.com/paulrsm/68k/68k.htm >is a usefull source for 'old' 68K systems, including >an complete HTML Version of the DTACK GROUNDED newsletter >from 7/81 until 9/83 (excerpt from the first issue: >"...Accordingly, there are a lot of companies who are >planning to drive the PDP 11/70 out of the marketplace >with $10,000 (base price) 68000 systems. It is rumored >that Apple is one of these companies, ..." sometimes >realy nice if you look into past rumors ... - I hope >he will convert the other isues) Talking about getting the pdp11 out of the marketplace, Anybody know the cadmus systems ? I would love to have one of these. (where Motorola CPU's on qbus) cheers, emanuel

27 years, 2 months

2
1
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Compupro computer questions

by allisonp＠world.std.com

I have one of these, a working (tried it, worked) and reassembled it as Compupro CPU-Z. No interest here in programming 8088. < I picked up a Compupro 816 computer yesterday and an external drive unit <with a hard drive and an 8" floppy drive. I haven't brought it home yet so Ok, It's an S100 crate so the box and it's contents can be very out of sync. If it has the 816 card that means 8085 and 8088 cpus on one card and it ran CPM-80, CPM-86, CDOS, CCPM and even MSDOS(odd io compared to PC)! <I haven't taken more than a quick look at it. Can anyone tell be about the <computer and drive? What CPU, speed, etc. What kind of operating system i There were several variation of the cpu speed but the slowest was 8mhz on the 8088 and the fastest was 10mhz. The 8085 runs ar 5/6mhz. minimum configuration was: CPU 816 interfacer 4 Disk 1 (or 1A) 128k static ram 8" dual drive DSDD versions included: 512k M-drive (ram disk 512k) SYSTEM SUPPORT (TOY clock, interrupt controllers) Hard disks The drive used a DISK1 floppy that was a DMA device using 765 controller. Hard disks would have either been DISK2 (8" drives) or DISK3 (5.25 drives). <uses, etc. I don't see a keyboard or video connectors so I assume it needs <a terminal to talk to it. Does any have a pinout of the serial port so I The idea of monitor and keyboard is a PCism. <the floppy drive use hard sectored disks, etc etc, etc. I noticed that <there are connectors for both a 5.25" and an 8" floppy drives and another Yes that controller will do all sizes (can easily be hacked for 3.5"!) but it's likely that it was used with 8" DSDD or 5.25 48tpi DSDD. <for a hard drive on the back of the CPU box. Does anyone have a manual or <the OS software for one of these? I have both but, I'm time cramped for copying (can't do that volume at work). Herb Johnson can help here to. Allison

27 years, 2 months

1
0
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Seeking: Digi-Comp 1 Advnaced Programming Manual

by jimw＠agora.rdrop.com

...or whatever it was called! The extra book of programming expirements (games?) for the Digi-Comp 1. Either hard-copy or electronic would be fine. Thanks! -jim --- jimw(a)computergarage.org The Computer Garage - http://www.computergarage.org Computer Garage Fax - (503) 646-0174

27 years, 2 months

1
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Compupro computer questions

by rigdonj＠intellistar.net

Hi all, I picked up a Compupro 816 computer yesterday and an external drive unit with a hard drive and an 8" floppy drive. I haven't brought it home yet so I haven't taken more than a quick look at it. Can anyone tell be about the computer and drive? What CPU, speed, etc. What kind of operating system it uses, etc. I don't see a keyboard or video connectors so I assume it needs a terminal to talk to it. Does any have a pinout of the serial port so I can make a terminal cable. What size is the hard and floppy drives, does the floppy drive use hard sectored disks, etc etc, etc. I noticed that there are connectors for both a 5.25" and an 8" floppy drives and another for a hard drive on the back of the CPU box. Does anyone have a manual or the OS software for one of these? Joe

27 years, 2 months

1
0
0 0

Breathing new life in laptop batteries

by allisonp＠world.std.com

<The first thing to try is to charge a large electrolytic capacitor <(say 10000-100000 uF) to about 20V. Now discharge it through the faulty <cell. If you are lucky, the cell voltage will rise, at which point charge <the cell as above. This is the beast bet as cells fail with internal shorts and the cap will dump enough energy to open them without cooking the cell. <What you do is use a current limited PSU of about 10V and 8A. 'Blip' it <across the cell for a fraction of a second - just tap the wires on. This is ok if the cell is hard starting, I don't recommend it. The better approach is the LARGE cap charged to 12-20V and follow with 1/4 the cell capacity for a few minutes (NOT LONGER). <I have seen one article which suggests doing the same thing with a car <battery as the power supply. DON'T!!! . The current is far too high, and <the NiCd is likely to explode. Extremely dangerous. <manufacturers used standard-sized cells, so it is possible to rebuild old <battery packs. Often far cheaper than a new one. Allison

27 years, 2 months

5
6
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Breathing new life in laptop batteries

by allisonp＠world.std.com

<been watching when recharging a cell treated with the capacitor zap method <and seeing it's voltage go from about 1.3 Volts back to zero again, <sometimes with a faint ping if about completely recharged. Other cells <become leaky electrically so they can be charged, but self discharge in a they are all bad and really the trick is temporary. I have tried this and sometimes it works for packs that have sat too much unused. First get the cells to take a charge, then discharge at .2 to .6 capacity and then recharge. The trick is to stop the discharge before any cell falls below 1.1v. Some packs after a few cycles start to work normally again. Then again tabbed cells for replacement use run from ~$1.50 to $4 depending on size (not at radio shack, they charge 3x that!). So replacing the cells (as a set) is the best bet. My PX-8 uses 4 1.2ah sub C cells that I can get for under 10$ total and the internal 4 cell 110ma sub AA the whole pack for usually under 5$. Allison

27 years, 2 months

2
1
0 0

FT: DEC Option Module Guide 1991

by cmcmanis＠mcmanis.com

Howdy, I've got a DEC Option Module Guide (~1500 pages, 1991 vintage) that I'm willing to trade for a set of three PDP-11 boards (2 x M8044-Dx, 1 x RKV21) these are two 32KW memory cards and an RX02 interface card. Email me off list if you're interested. --Chuck

27 years, 2 months

2
1
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NEC PC-8001 Expansion Chassis pictures

by fauradon＠mn.mediaone.net

Hi, I used to have a camera like that and the trick I used for highly reflactive objects that still needed extra lighting was to tape a piece of velum papre in front of the flash to diffuse and soften the light. Francois >The second picture shows the inside of the I/O expansion chassis (sorry >about the glare...this stupid camera doesn't have an option to turn off >the flash correctly, or stupid me forgot how to do it right).

27 years, 2 months

1
0
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Breathing new life in laptop batteries

by roblwill＠usaor.net

The method that I use to open up old NiCd's is with an old knife and a propane torch. The knife is an old snap-off utility knife (with a metal insert in the plastic handle). I turn on the torch, open the knife as far as it'll go (about 2 1/2"), and heat it over the torch until it is red hot. I then melt through the seam of the battery pack (or the middle, if I can't find a seam). To fasten the pack back together, I just use a soldering iron and "spot weld" it back together at the corners. This makes it easier to take apart the next time the cells need replaced. -- -Jason Willgruber (roblwill(a)usaor.net) ICQ#: 1730318 <http://members.tripod.com/general_1> -----Original Message----- From: Francois <fauradon(a)mn.mediaone.net> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Friday, May 07, 1999 9:26 PM Subject: Re: Breathing new life in laptop batteries >Hi, >Thanks for all the info. Apparently there are no reliable way to bring their >youth back, I would like to have a reliable laptop with a battery that last >more than 30 min. I found a Zenith z-star 433 VLp (500 Mb hd, 12 M RAM and >color display and the Zenith J-Mouse!!!) that I'd like to use while away >from home. The batery I got seem to work for a while. Also it has four >contacts does this means that it provide mutiple voltages or is there some >kind of charge sense signal? I haven't brought the battery to the bench yet >(no room on or near the bench:). >Also the pack seems to be sealed pretty good, any elegant way to open it up >and reclose it without too much damage? >Thanks >Francois > >PS: I actually got 3 of these laptops and built two from the set of parts >and two of the batteries are totally shot: they get very hot when I try to >charge them and of course no juice is coming out. I can practice on one of >the dead ones. > >>> >This is the beast bet as cells fail with internal shorts and the cap >will >>> >dump enough energy to open them without cooking the cell. >>> > >>> Yes, but many times in my experience another short appears shortly. I >have >> >>Unfortunately, that's right :-( I would never depend on a cell that I'd >>repaired by this method. > > >

27 years, 2 months

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WD Chipset info (Was: Listserve Traffic)

by edick＠idcomm.com

I've been saving a couple of the 1050 chips, in that ultra-rare JECED 'C' package for use as high-tech cuff-links to go with my i8008 tie-tack. I surely liked that package better than the stupid, Stupid, STUPID one they used for a number of 68-pin wonders including the 8018x and 80286. Of course I could use a more up-to-date part, but why . . . Dick -----Original Message----- From: Tony Duell <ard(a)p850ug1.demon.co.uk> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Friday, May 07, 1999 4:36 PM Subject: Re: WD Chipset info (Was: Listserve Traffic) >> <snip> > >And others, like the 1050 SMD controller chip. > >-tony >

27 years, 2 months

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NEC PC-8001 Expansion Chassis pictures

by dastar＠ncal.verio.com

I took two digital photos of my NEC PC-8001 expansion chassis. My previous description of the unit was incorrect. The disk drives are housed in a totally separate chassis. The actual expansion chassis contains a slotted backplane so that expansion cards may be added to the PC-8001. The first picture shows the dual disk drive cabinet atop the 8012A I/O Unit. http://www.siconic.com/crap/8001exp1.jpg The second picture shows the inside of the I/O expansion chassis (sorry about the glare...this stupid camera doesn't have an option to turn off the flash correctly, or stupid me forgot how to do it right). You can see a RAM card plugged into the lower slot. http://www.siconic.com/crap/8001exp2.jpg The I/O unit has an external connector that the PC-8001 plugs into. It has a second connector that plugs into the disk drive unit. Sellam Alternate e-mail: dastar(a)siconic.com ------------------------------------------------------------------------------ Don't rub the lamp if you don't want the genie to come out. Coming this October 2-3: Vintage Computer Festival 3.0! See http://www.vintage.org/vcf for details! [Last web site update: 04/03/99]

27 years, 2 months

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Listserve Traffic

by jeff.kaneko＠juno.com

Guys: Is it just my imagination, or has traffic on this Mailing List gone like, *way* down? I used to get upwards of 60+ messages a day, now I'm only getting less than half that. ???? Jeff ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]

27 years, 2 months

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WD Chipset info (Was: Listserve Traffic)

by edick＠idcomm.com

A couple of things . . . first of all, the WD1100 came well before the 1010 which preceded the 2010 by about a year. All the information you need about either of these chips is contained in the datasheet/appnote set published by WD for their WD100x-0x series of controllers. Careful, now, because the earlier controllers were different, i.e. the WD1000-55 came before the WD1000-05. The '-55 was the one with the WD 5-chip chipset with various designations, but accompanied by the 8X300 microcontroller. There's a 1010 on nearly every one of the early PC/XT and PC/AT controllers. The designation for one of the PC/XT controllers which was quite well documented, was WD1002-WX2. There's nothing mysterious about these controllers. They are dirt simple to program, to wit, I programmed the things myself instead of having someone else do it. The device has a "register file" which you must completely rewrite each time you issue a command and it has a buffer which you must fill before writing and empty after reading data and before checking status. The board has its own counters which trigger the operation in question once you've performed the requisite number of reads and writes. The 1015, by the way, is an 8041 (2) with Western's code in it. I have several different versions of this chip's application chipset, so it's not easy to see what's what. One thing's for sure, though, and that's that the 1010 definitely replaced the 5-chip set used on the 8X300-based controllers. The 2010 is an enhanced, error-correction-support-capable version of the 1010. It works more or less the same in other respects, but has a longer correction code which makes it capable of more than just complaining there's been an error. I'll look around to see if I have anything beyond an old data book from Western. I once kept all these devices' data sheets as though my life depended on it, which it once did, more or less, . . . at least my diet . . . , so I may actually still have them. Western abruptly quit sending out data on the chips when they went from supplier to competitor for those of us in the controller business. That was, I believe, in about 1984. Dick -----Original Message----- From: Jeffrey l Kaneko <jeff.kaneko(a)juno.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Friday, May 07, 1999 10:26 AM Subject: WD Chipset info (Was: Listserve Traffic) >Guys: > >Well, actually, my concern was that maybe I'm not getting all of >my mail (either that, of I've pissed off alot of people, and don't >know why). > >Anyways, does anybody out there have a 'long form' spec/application >sheet for the WD-2010 or the WD-1010 HDC chip? There is a 'short' >(read: Incomplete) sheet in the old 1983 catalog, but it is missing >some information. > >ALso, if someone has info on HDC devices made by WD after 1983 >(the WD-1100 comes to mind, for example), that would be appreciated >also. Let me know what you got, and I will be happy to pay for >postage & duplication (your $6.50 is in the mail Joe! :^) ). > >WD devices are as common as fleas on a dog, but docs seem to be >rather scarce. > >Thanks! > > >Jeff > > >On Fri, 7 May 1999 15:05:58 +0100 Philip.Belben(a)pgen.com writes: >> >> >> > Is it just my imagination, or has traffic on this Mailing >> > List gone like, *way* down? I used to get upwards of 60+ >> > messages a day, now I'm only getting less than half that. >> >> >> If you want more messages, here's another :-) >> >> In fact, I am still getting around 60 messages a day from Classiccmp >> at the >> moment, but this is a lot easier to cope with than the 100+ we had a >> week or two >> ago. Especially since my boss doesn't like me reading them in work >> time (he's >> off with a bad back today...) >> >> Philip. >> >> >> >> >> > >___________________________________________________________________ >You don't need to buy Internet access to use free Internet e-mail. >Get completely free e-mail from Juno at http://www.juno.com/getjuno.html >or call Juno at (800) 654-JUNO [654-5866]

27 years, 2 months

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Web auctions, etc.

by sring＠uslink.net

I would appreciate knowing of a few auction and classified ad sites where I can pick up stuff for my Atari's, Commodores, etc. You are really a helpful group of people. Maybe my little puters will stay alive afterall. Thanks! Stephanie sring(a)uslink.net

27 years, 2 months

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Bootable floppy?

by CLASSICCMP＠trailing-edge.com

>Is it possible to make a bootable floppy for a VAXStation 2000 or is the >system too large for the disk? A VMS installation is way too large for a single floppy, of course. I think a VMS distribution or backup onto floppies is about as cruel as the Wagner ring cycle on 45's! But if you're into self-abuse and huge piles of floppy disks, it is possible. >If it is possible, what is the procedure? It is possible, of course. Boot VMS, log in as the system manager, and do a @SYS$UPDATE:STABACKIT to build the standalone backup tool on floppies. You can then do a backup of the system disk onto floppies (preferably using the STABACKIT kit you just generated to test your copy of standalone backup). But if at all possible, get a tape drive! -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

27 years, 2 months

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WD Chipset info (Was: Listserve Traffic)

by jeff.kaneko＠juno.com

Guys: Well, actually, my concern was that maybe I'm not getting all of my mail (either that, of I've pissed off alot of people, and don't know why). Anyways, does anybody out there have a 'long form' spec/application sheet for the WD-2010 or the WD-1010 HDC chip? There is a 'short' (read: Incomplete) sheet in the old 1983 catalog, but it is missing some information. ALso, if someone has info on HDC devices made by WD after 1983 (the WD-1100 comes to mind, for example), that would be appreciated also. Let me know what you got, and I will be happy to pay for postage & duplication (your $6.50 is in the mail Joe! :^) ). WD devices are as common as fleas on a dog, but docs seem to be rather scarce. Thanks! Jeff On Fri, 7 May 1999 15:05:58 +0100 Philip.Belben(a)pgen.com writes: > > > > Is it just my imagination, or has traffic on this Mailing > > List gone like, *way* down? I used to get upwards of 60+ > > messages a day, now I'm only getting less than half that. > > > If you want more messages, here's another :-) > > In fact, I am still getting around 60 messages a day from Classiccmp > at the > moment, but this is a lot easier to cope with than the 100+ we had a > week or two > ago. Especially since my boss doesn't like me reading them in work > time (he's > off with a bad back today...) > > Philip. > > > > > ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866]

27 years, 2 months

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Breathing new life in laptop batteries

by fauradon＠mn.mediaone.net

Hi all, I know we already had a discussion on that topic but I can't remember what was said since I was not too interested at the time. Some of you mentioned that it was possible to restore "dead" batteries from laptop. The ones in question are NiCads and very much dead as far as I can tell. Any info appreciated Thanks Francois --------------------------------- Note: New e-address: fauradon(a)mn.mediaone.net Visit the oh so neglected (but recently moved) sanctuary at: people.mn.mediaone.net/fauradon

27 years, 2 months

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Listserve Traffic

by Philip.Belben＠pgen.com

> Is it just my imagination, or has traffic on this Mailing > List gone like, *way* down? I used to get upwards of 60+ > messages a day, now I'm only getting less than half that. If you want more messages, here's another :-) In fact, I am still getting around 60 messages a day from Classiccmp at the moment, but this is a lot easier to cope with than the 100+ we had a week or two ago. Especially since my boss doesn't like me reading them in work time (he's off with a bad back today...) Philip.

27 years, 2 months

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HP700?

by jlwest＠tseinc.com

The HP 700 series were/are graphical workstations. They are virtually identical to the 800 series (the business servers) except they were repackaged for the workstation market. Unix (HP-UX) OS. PA-RISC cpu's. Parts of the 700 series might still be in production. Getting a power supply from a scrap/surplus dealer wouldn't be all that easy, but not impossible. You can probably still buy a power supply for it from HP. Jay West -----Original Message----- From: Bruce Lane <kyrrin(a)bluefeathertech.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Friday, May 07, 1999 9:18 AM Subject: HP700? > I don't know how 'classic' this one is just yet, but... > > I came across a partly gutted HP700IL at my local used place yesterday. It >was missing its power supply, but still had the CPU card. I took a look, >and it looks like the heat sink was actually bolted to the CPU chip (a la >the DEC Alphas). > > Is the unit worth grabbing? It looked kind of slick. How hard would it be >to find a power module? > >Thanks... > > >-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- >Bruce Lane, Owner and head honcho, Blue Feather Technologies >http://www.bluefeathertech.com >Amateur Radio:(WD6EOS) E-mail: kyrrin(a)bluefeathertech.com >SysOp: The Dragon's Cave (Fido 1:343/272, 253-639-9905) >"Our science can only describe an object, event, or living thing in our own >human terms. It cannot, in any way, define any of them..." >

27 years, 2 months

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Listserve Traffic

by emu＠ecubics.com

>Traue keinem Menschen der 5 Tage blutet und immer noch nicht tod ist. ???

27 years, 2 months

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core... more

by jdykstra＠nortelnetworks.com

On Thursday, May 06, 1999 9:43 PM, allisonp(a)world.std.com [SMTP:allisonp@world.std.com] wrote: > They are roughly 50mils x 11 mils x 15mils. Cross section of the > doughnut is rectangular at 15x11 mils. The reason for such rough > measurements is my vernier is only good to .001" and I'd need > somthing fancier to be more accurate. By eyeball the 8e cores are > smaller! According to Pugh's "IBM's 360 and Early 370 Computers", in 1963 IBM was manufacturing both 30x50 mil and 19x32 mil cores (inside diameter x outside diameter). Allison's measurements match up with the larger size. According to the book, the IBM 7080 and 7094 used the smaller size. Thus, these cores were probably intended for either the 1401, or the 7090 if any of these were still in production in 1963. Does anyone out there have a 1401, or a 1401 core stack? Something I hadn't read of before: the 7090's core planes were immersed in oil to help with heat dissipation. I wonder whether there was a sticker on the machine (right underneath "Trained Service Personel Only"): "Change oil every six months or 100,000 punched cards". Another interesting point: The defect ratio of cores that reached the plane wiring stage was 1 out of 8,000. This sounds incredibly high, but IBM's core manufacturing facilities were state of the art. Imagine the difference between the process control used then, and current integrated circuit fabrication techniques! > A simple core frame would be 8x8 (64 bits) and use a 4 wire system as > that simplifies the select, inhibit and sense hardware. I'd likely go > with late 70s level TTL and transistors to drive these and to sense the > outputs I don't know if I'll use transistors (1968 or earlier designs) > or > comparator chips (aka 1540, 710, 711) will be used. They would also be > consistant with 1970s technology. I'd very much like to see your schematics, once you're happy with them. Better late than never to learn about appropriate circuit designs. ---- John Dykstra jdykstra(a)nortelnetworks.com Principal Software Architect voice: ESN 454-1604 Enterprise Solutions fax: ESN 667-8549

27 years, 2 months

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HP700?

by kyrrin＠bluefeathertech.com

I don't know how 'classic' this one is just yet, but... I came across a partly gutted HP700IL at my local used place yesterday. It was missing its power supply, but still had the CPU card. I took a look, and it looks like the heat sink was actually bolted to the CPU chip (a la the DEC Alphas). Is the unit worth grabbing? It looked kind of slick. How hard would it be to find a power module? Thanks... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com Amateur Radio:(WD6EOS) E-mail: kyrrin(a)bluefeathertech.com SysOp: The Dragon's Cave (Fido 1:343/272, 253-639-9905) "Our science can only describe an object, event, or living thing in our own human terms. It cannot, in any way, define any of them..."

27 years, 2 months

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PC in a box and Re: MacIntosh in a box question

by rigdonj＠intellistar.net

At 06:48 PM 5/6/99 -0500, you wrote: >Where are you located and how much are they? They're in Orlando Florida. He has six of them and I expect he'll take $100 each plus shipping. Call Don at (407) 260-9109. Don is the same guy that has the rack mount PCs. I've written up a bit about them and posted it at "www.intellistar.net/~rigdonj/don-ad.htm". That a look if you're interested. The boxs for the Apples are not the same as the one for the PCs. I expect he'll take $125 for one of them with a single CPU card (486-100), 4Mb Ram, a VGA video card, a 520 Mb hard drive and a floppy drive. He has a lot of neat data acquision and control cards for them and some of the cases have dual computers in them. BTW the Apples have a keylock on the front to turn them off and on with. Don doesn't have the keys. I popped the switch portion off of the lock on one of them and turned the switch shaft with a pair of pliars. If you got one, you can do the same or replace the lock/switch or have a key made. Joe > >George > >> I found some strange looking rack mount boxs in a salvage place today. >> They're marked AuudioVision 90. I opened one up and found that it has an >> Apple Mac Quadra 950 built into it. I rounded up a monitor (but no >> keyboard) and fired one up. It boots to MacOS then asks for a password. >> Is there anyway to get around the password other than reinstalling >> everything? >> There are six of them available. Is anyone interested in them? They have >> a >> huge non-apple power supply, and at least one floppy and one hard drive >> and all the regular Nu-Bus (?) slots. Another that I opened had two hard >> drives. >> >> Joe >> > > >

27 years, 2 months

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Dayton Hamvention

by ethan_dicks＠yahoo.com

--- Marvin <marvin(a)rain.org> wrote: > > As it is really getting close now, just curious how many people on this list > will be at Dayton Hamvention. I'm hoping to go (I live in Columbus), but I also have another thing going on at the same time in Western PA (near Butler). :-( If I can go, I'd be very interested in a get-together. -ethan _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

27 years, 2 months

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CURSOR cassettes

by ds_spenc＠alcor.concordia.ca

Greetings, I've managed to transfer the contents of CURSOR Magazine (for the PET) cassettes #1 to #8 to my Amiga. Cassette #2 is incomplete due to damage to one program. Is there already an archive of Cursor Magazine cassettes? Does anyone have the program "RACE" >from Cursor #2? -- Doug Spence ds_spenc(a)alcor.concordia.ca http://alcor.concordia.ca/~ds_spenc/

27 years, 2 months

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OT: neon lamps from previous post

by mranalog＠home.com

John said: > Does you have a reference on how to build an oscillator or counter out > of neon lamps? Here is the zip file that put up a couple of months ago. It contains 22 scanned pages of glow lamp logic circuits. The zip file is 1.6 MB. http://www.best.com/~dcoward/LAMP.ZIP I hope this helps, --Doug ==================================================== Doug Coward dcoward(a)pressstart.com (work) Sr. Software Eng. mranalog(a)home.com (home) Press Start Inc. http://www.pressstart.com Sunnyvale,CA ====================================================

27 years, 2 months

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How scarce (valuable) is core for the PDP-8?

by CLASSICCMP＠trailing-edge.com

Mike wrote: >> Perhaps a >> smaller array, but with LARGE cores where the magnetic state could have >> some visual indicators. >How would that work? Would you have an LED for each bit or something? Get a little bit away from magnetic storage, and you can use neon lamps as storage elements which are self-illuminating :-). Neon lamps - when powered by DC - have a nice memory property: They take about 90VDC to light up, but after they light up they'll stay on until the voltage drops below 60VDC or so. Only problems are: 1. The thresholds can vary greatly from unit to unit. 2. The thresholds will vary depending on ambient light, as well. Property 2 above can be used to build oscillators out of pairs of neons, as a matter of fact... Tim.

27 years, 2 months

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core memory

by mark_metzler＠xoommail.com

At 10:25 PM 5/5/99 -0700, Sellam Ismail wrote: > >Yeah, then I spray-painted it neon pink because I didn't like the original >color. Core memory is cool. No way. It wouldn't be Art until you made it into a dress, as a commentary on the way technology has shaped our lives. - John This is too much like what actually happened to me. A few years ago I learned that someone had an IMSAI 8080 they wanted to get rid of, in a city 150 miles >from where I live. I was willing to make the trip to go and rescue it. But when I finally got in touch with the owner by phone, they said "I wish you had gotten ahold of us sooner! We just gave it to an artist who wanted to use it for a collage." I can still imagine that front panel plastered in bright-colored goo, along with a bunch of other techno-junk, hanging on some wall in humiliation! --- Mark Metzler VON NEUMANN MACHINES Online Computer History Bookstore/Museum http://home.pacbell.net/mmetzler/vnm.html ______________________________________________________ Get your free web-based email at http://www.xoom.com Birthday? Anniversary? Send FREE animated greeting cards for any occassion at http://greetings.xoom.com

27 years, 2 months

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