test-drb October 2001

test-drb@ccmp.vtda.org

259 participants
770 discussions

Caddy for one DEC-RDD40 external cdrom unit

by spedraja＠ono.com

I'm in Spain, Antonio, in the North (Santander). Thanks. Your option appears to be the better and less expensive, if you permit to me the comment :-) Greetings Sergio -----Mensaje original----- De: Carlini, Antonio <Antonio.Carlini(a)riverstonenet.com> Para: 'classiccmp(a)classiccmp.org' <classiccmp(a)classiccmp.org> Fecha: mi?rcoles, 24 de octubre de 2001 16:57 Asunto: RE: Caddy for one DEC-RDD40 external cdrom unit >John Allain [mailto:allain@panix.com] >> I have spares for the '42. if they're the same as the '40 you >> can have one. I think they're Very common. I don't think >> I've seen a caddied CDROM drive that Doesn't use this >> type of caddy. > >The RRD42 is (IIRC) a Sony unit (possibly >with modified firmware). It takes >a "standard" caddy. > >The RRD40 is a much older Philips(?) >CD-ROM (1x) and it takes a caompletely >different form of CD holder (often >referred to as "antlers"). > >FWIW: the RRD43 is a tray-loader and >the RRD44 is back to a caddy. The >first DEC CDROM drive was the RRD50, which >was essentially a tabletop, caddyless >(flip open the top and load CD) >RRD40 (except, I believe, *slower*!!). > >I have at least one RRD40 CD holder, >which I can supply if noone nearer >can dig one up (I'm in the UK). > > >Antonio

23 years, 6 months

Caddy for one DEC-RDD40 external cdrom unit

by spedraja＠ono.com

>> Do anyone has one Caddy for one DEC-RDD40 external >> cdrom unit ? > >I have spares for the '42. if they're the same as the '40 you >can have one. I think they're Very common. I don't think >I've seen a caddied CDROM drive that Doesn't use this >type of caddy. This caddy don't appears to be the usual caddy that most common CDROM's used. I have one of these and don't go well. The entry ranure of the CD device is more THIN than the others, and this don't work. It can be too a problem of my caddies: I have two NEC caddies to probe, and any of it works. Greetings Sergio

23 years, 6 months

Adventure in Ersatz-11

by GOOI＠oce.nl

Stupid that I did not think of trying SJ. With SJ entering .R ADVENT starts Adventure also! I assumed that VBG was for Virtual BackGround, so nice to be comfirmed on that. Indeed, I have E11 running on an 486DX2/66, but I cannot give an idea of how fast it runs, compared to a PDP-11. Although E11 can be set to an 11/70, I have set it to /35-40 because that is also the *real* hardware I have. Never set it to /34(A) or to /44. Both those systems I also have running. Next time that I start the 11/35 I will run ADVENT on both of them and measure the time until the welcome message appears on the screen. For the "blinkenlights" check out my webpage. http://home.hetnet.nl/~tshaj/pdpsite/pdpstartpage.html then click in the left pane on the link Homebrew 'PDP-11'. At this moment only the LEDs of the data bus blink. I hope to add a piece of hardware that 'talks' to Ersatz-11 so that the address bus LEDs are also active *and* that the switches function as on the real thing. The goal is that the hardware design can facilitate *any* real PDP-11 console that has switches and lights, from an 11/10 to an 11/70. Of course, this project needs the cooperation of John Wilson, and I had already some preliminary contacts with him. He also likes the option to connect a real console to the demo(!) version of Ersatz-11. -Henk. > -----Original Message----- > From: Jerome Fine [mailto:jhfine@idirect.com] > Sent: woensdag 24 oktober 2001 0:41 > To: classiccmp(a)classiccmp.org > Subject: Re: Adventure in Ersatz-11 > > > >Gooijen H wrote: > > > Yes !! > > Jerome Fine replies: > > Thank you for the feed back. I was not sure how much memory > ADVENT requires. You might also try: > BOOT RT11SJ > if you wish. > > > Thanks very much, Jerome. > > Booting RT-11FB and then running ADVENT still produces > > the "Insufficient memory" fatal error. > > However, VBGEXE works fine ! > > After the "Welcome to Adventure!! Would you like instructions?" > > and entering 'YES", it goes: Somewhere nearby is Colossal Cave, > > etc. > > This means that I am now going to play Adventure. This has a > > serious drawback on the expansion of my website ... > > I am playing it on my "homebrew-PDP" with the BLINKENLIGHTS on!! > > On my website this project (early phase) has a separate link. > > BTW. What is VBGEXE, what do the letters stand for? > > Thanks again, > > Henk. > > "EXEcute Virtual BackGround program" is how I think of the letters > with the understanding that the word EXEcute is then switched > to the end. > > A few points worth noting. > > (a) If FOO.SAV requires any arguments as in: > "RUN DEV:FOO.SAV arguments" or replace RUN with VBGEXE, > then they must be on the same line. The alternative is the > put all three > parts of the command on separate lines. Otherwise, with just > "VBGEXE DEV:FOO.SAV" on the first line, somehow the request > for information expects the arguments to already be there and if not, > just exits. Entering: > VBGEXE > DEV:FOO.SAV > arguments > on three separate lines works as well. > > (b) The command: > SRUN VBGEXE.SAV/TERMINAL:n/LEVEL:m/NAME:utility > also works very well when you want to run a system job at a > higher priority. > TERMINAL is only useful with a system that has multi-terminal support > LEVEL specifies the system job number ( 1=>6 ) > NAME can be used to automatically select an executable file > called SY:utility.SAV > One minor problem is that if name is omitted, then only ONE > instance of > VBGEXE can be invoked as a system job since the high memory > GRCBs (Global > Region Control Blocks) must all have different names. I have > a small patch > with allows the user to do the command: > SRUN VBGEXE.SAV/TERMINAL:n/LEVEL:m/NAME:VBGEXm > If that is done, each GRCB is given the name VBGEXm making them all > different. This means that no program can have the name VBGEX(1=>6), > a restriction that I assume can be lived with. > > I also remember that modifying TECO to be named VMUNG so that > "VBGEXE VMUNG arguments" > would work the same as > "MUNG arguments" > but use the full 64 KBytes allowed by VBGEXE. > > By the way, I assume that you are using E11 on a PC. Which hardware > and how fast do you find that the code runs compared to any > real PDP-11 > hardware. Plus, I can't remember about the "BLINKENLIGHTS" - what > did you do to have those available? > > Sincerely yours, > > Jerome Fine > >

23 years, 6 months

Caddy for one DEC-RDD40 external cdrom unit

by Antonio.Carlini＠riverstonenet.com

John Allain [mailto:allain@panix.com] > I have spares for the '42. if they're the same as the '40 you > can have one. I think they're Very common. I don't think > I've seen a caddied CDROM drive that Doesn't use this > type of caddy. The RRD42 is (IIRC) a Sony unit (possibly with modified firmware). It takes a "standard" caddy. The RRD40 is a much older Philips(?) CD-ROM (1x) and it takes a caompletely different form of CD holder (often referred to as "antlers"). FWIW: the RRD43 is a tray-loader and the RRD44 is back to a caddy. The first DEC CDROM drive was the RRD50, which was essentially a tabletop, caddyless (flip open the top and load CD) RRD40 (except, I believe, *slower*!!). I have at least one RRD40 CD holder, which I can supply if noone nearer can dig one up (I'm in the UK). Antonio

23 years, 6 months

CoCo 3 hot or hmmm

by tlindner＠ix.netcom.com

> One of my swapmeet friends showed up today with Radio Shack Color Computer > 3 in the original box, is it worth anything? (no clue on condition or > completeness etc., but I could look next time). I think they are cool. But then I have been acquiring CoCo stuff for the last twenty-one years! A 128K CoCo 3 with box and manuals is probably worth $25.00. -- tim lindner tlindner(a)ix.netcom.com "Life. Don't talk to me about life." - Marvin, the android

23 years, 6 months

value of classic DEC machines?

by dhquebbeman＠theestopinalgroup.com

Heinz Wolter wrote: > Glen Goodwin wrote : > > > I talked to Ken this afternoon. > > > He needs 3-4K to cover the back rent on the storage > > > and is looking for someone to take all this stuff and > > > sell it on eBay for him. He thinks it's worth $100000 > > > > Well, hey, if a CoCo is worth $2500 . . . > > We'll if there's a complete working PDP-10 (KL10), with > disks, it might have a collector value of 20-30K$US, > but you'd have to search carefully to find a rich buyer... I know of three in private hands, and I think they were each acquired at not cost. > Now a PDP-1 would certainly be worth 100KUS$, > as might a KA10 or KI10. If all that was needed to > cover back-rent was 3-4KUS$, then a couple of PDP-8s > or early PDP-11s should do the trick. The PDP-1, working, complete, might well be worth US$10K, but it's unlikely he's got one. Probably a boatload of Vaxen & -11 stuff. Or maybe even Alpha. > There are collectors out there like Mr. Allen paying > big dollars for not so rare machines...I've even heard > of unscrupulous "museum" collectors selling off machines > that were donated to so called ~not-for-profit~ organizations. > I don't think paying the rent is a bad idea, but selling off > donated valuable items for huge personal profit is wrong, > unless of course, you paid for or removed the machines, > made no misrepresentations, and it's a legitimate business. The Bostom Computer Museum was trying to support itself by selling modules from systems that weren't complete. > Still no matter what the source, it would bet better for these > machines to find good homes (even in eccentric millionaire's > collections) than to end up in the scrap heap or raped for their > gold plating. On this, we agree... > I wonder what item Al K. is looking for that could be worth > any good part of 100KUS$, or 3KUS$ ;) I don't think anything that expensive is in Al's budget... Though wouldn't we all love to have a sugardaddy like that! -dq

23 years, 6 months

Univac I Graphic Simulator Aid

by CAA007216＠mail.ono.es

Hello. I just begin the development of the Univac I simulator. By the moment I am doing one simple prototype of the CPU with all the Instruction Set and the Registers, plus ten simulated Uniservos in form of ten plain ascii files. I don't try to reproduce by the moment the timings or the exact cycle of the data and/or instructions along the system. In a later issue I have the intention to convert the simulator in one Bob Supnik's Simh compatible. And, finally, I shall try to develop one GUI for the Sim, and here is where I need some kind of help. All the photographs I have are in black and white, and I need some help about the real color of the Univac I components. I am working actually with the Supervisory Control (the Huge Console of the Univac I) and I need to know if somebody knows its exact colors: that is, of the Metallic components, and the light and blinking colors too. All help should be agreed. Thanks and Best Regards Sergio Pedraja

23 years, 6 months

ISA cards for free...

by r_beaudry＠hotmail.com

Hello all, Cleanout time again... I have the following ISA cards available for cost of postage only. These cards were part of a lot I picked up just for the two Compaticard II cards that were in the pile :-). Let me know what you want. In fairness to international and digest readers, if I get more offers than I have of a certain card, then I will throw names into a hat and pick. These should be fairly cheap to ship, as they all are light... Also, they are UNTESTED, and given to you AS-IS... Here we go: Boards from Zenith Z-150 - CPU Board 85-2889-1 -- 8088, keyboard port, ROMs, etc - Disk Controller Board 85-2890-1 -- 2 WD 8250, i8272, external ports - Memory Board 85-2891-1 -- 5 banks of 9 4164 chips - Video Board 85-2945-1 -- 6845, 2732 ROM, D9 and RCA outputs - 8-slot backplane board 85-2964-1 -- 8 8-bit ISA slots, power connector Qty. 3 8-bit ISA VGA cards -- Paradise chipset, 8 MB81464-12 memory chips Qty. 1 8-bit ISA VGA card, renaissance chipset, 8 D41464C-10 memory chips Qty. 3 8-bit Seagate ISA cards, SCSI??, EPROM marked Seagate ST01/02 BIOS, TI CF61891FN, 50-pin header Qty. 1 8-bit ISA card, marked "UPS Monitoring Board, Copyright 89 APCC" Switch settings silkscreened on board Qty. 2 8-bit ISA cards, marked "ASYNC CARD 1501485APS" -- INS 8250, 25-pin male connector Qty. 1 8-bit Everex ISA card, I believe SCSI controller -- PWA-00081-0002 EV-833, 50-pin header, 62-pin high-density connector out the back, 8085AP-2, 8257C, 6116, 27C64, TI CF60128N, Everex custom chip Qty. 1 16-bit ISA SCSI card, Adaptec AHA-1542B, w/ 50-pin ribbon cable Qty. 1 16-bit full-length ISA SCSI card, board marked AHA-1542A, custom chip marked AHA-1540A -- No floppy connector, 50-pin SCSI connector, no connector out the back. -- 50-pin header has some bent pins. Qty. 4 8-bit 3/4 length ISA floppy controller -- 37-pin D connector out the back, 34-pin edge connector along the front edge of the card. No obvious manufacturer's markings. Three have the i8272 chip, one has an NEC 765. Qty. 6 8-bit 1/2 length ISA floppy controller card. One uses the NEC 765, Two use the Zilog Z0765A08PSC, and three use the i8272. All have no connector out the back, and a 34-pin edge connector along the front edge of the card. One is marked "Kouwell KF-503C" "They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." -- Ben Franklin

23 years, 6 months

ASSORTED COMPUTER PARTS!! L@@K HERE!!

by tonyfz＠lycos.com

If you are interested in any items let me know and I'll forward you an image of the part. Here's the list: IBM PS/2 LX 40 Laptop (complete, including powersupply, battery and modem - Needs CMOS battery replaced) Compaq LTE 286 Laptop parts: -Battery pack -Floppy drive -Harddrive -Motherboard -Memory expansion card Compaq LTE 386 s/20 Laptop parts: -Battery pack -Floppy drive -Harddrive -Modem -Power supply board (?) Apple Computers: * Power Macintosh 6100/66 DOS Compatible 6100 DOS compatible. Card includes a 66 MHz 486DX2 CPU, SVGA output, and a single SIMM slot supporting up to 32 MB RAM * Apple Desktob Bus Mouse II * Assorted apple cables One monitor/printer cable One 8-pin keyboard (?) cable * Apple OneScanner w/ 2 SCSI Ports + cable * Apple Multiple Scan 15 Display 15" monitor w/15-pin plug * Two Apple Keyboard II units * Apple ImageWriter II Color Printer with Paper Tray Feeder MONITORS/Serial Terminals: * Wyse technologies Monitor/terminal w/parallell/phone line ports (15") * NCD Monitor/Terminal w/parallell/thin/serial ports(15"-color) * Seiko Instruments 15" Monitor (color) I also have the following motherboards available: * Compaq Motherboard for 486 processor w/4 Slot ISA Riser board and 4 72-pin memory bays (Copyright 1992, 93,94) Built in Mouse, keyboard, graphics card, and paralell ports Board # 03433-001 * Dual processor motherboard for 486 and 386 processors w/8 ISA Slots Unknown board brand, copyright 1992 8 30-pin SIMM memory bays AMI BIOS // American Megatrends/Symphony chips S/N 58000 * Dual processor motherboard for 386 and 286 (?) processors w/8 ISA Slots Unknown board brand, copyright 1986-1990 8 30-pin SIMM memory bays AMI BIOS // American Megatrends/Symphony/Twinhead chips FM-SC386 * DELL Computer Corp. motherboard for 486 processor w/3 Slot ISA Riser board and 4 72-pin memory bays,copyright 1991 Built in Mouse, keyboard, graphics card, and paralell ports 16577 A7 0141 WS(?) * Micronics Computers Inc. Dual processor motherboard for 486 and 386 (?) processors w/8 ISA slots and 8 30-pin SIMM memory bays Phoenix BIOS // Intel Copyright 1977 /CHIPS on-board chips * Micronics Computers Inc. (??) Dual processor motherboard for two 486 processors w/8 ISA slots and 4 72-pin memory bays and cache slot Copyright 1993 Phoenix BIOS // FLASH/CHIPS/Micronics on-board chips * Dtk Dual processor motherboard for 386 and 286 (?) processors w/8 assorted length ISA slots Copyright 1987 Dallas/Texas Instruments/Mitsubish/Citizen/VLSI on- board chips (All boards are working as far as I know, they were pulled out of working computers) I also have several 5.25" floppy drives (TEAC, EPSON, Others) I have older Miniscribe and Epson harddrives I have one tower and two boxes w/power supply ready for assembly Also, several older graphics cards, IDE expansion cards, SCSI cards, serial port cards, and many other older components of the like. Power supply. Numerous sizes and options Additionally, I have several sets of 30-PIN SIMM Memory cards and one Cache (256K) card Please let me know if you or anyone else you know is interested in acquiring any of this hardware. Feel free to email me for further info. Sincerely, H. Sven Fernandez Hattiesburg, Mississippi Make a difference, help support the relief efforts in the U.S. http://clubs.lycos.com/live/events/september11.asp

23 years, 6 months

CoCo I (gilded, maybe?) was Re: CoCo 3 hot or hmmm

by mythtech＠Mac.com

>Does any on know what eBay gets for his folly? When it doesn't sell, he will be able to reprice it and relist for free, if it doesn't sell the 2nd time, he will owe ebay $3.30 Not a bad loss to test the waters for a sucker -chris <http://www.mythtech.net>

23 years, 6 months

Mentor Graphics Storage unit 6000

by KenzieM＠sympatico.ca

What is it? It says Mentor Graphics Storage Unit 6000 on the front panel HP C2213d.... class 1 laser... on the back I was told it was an external SCSI drive. Collector of Vintage Computers (www.ncf.ca/~ba600)

23 years, 6 months

PDP11 tapes

by rcini＠optonline.net

Hello, all: Someone from the Netherlands contacted me about obtaining images of the LPS11 test tapes. Before I go through the trouble of sending the tapes overseas, does anyone on the list have images of the tapes already prepared? Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

23 years, 6 months

Adventure in Ersatz-11

by GOOI＠oce.nl

Yes !! Thanks very much, Jerome. Booting RT-11FB and then running ADVENT still produces the "Insufficient memory" fatal error. However, VBGEXE works fine ! After the "Welcome to Adventure!! Would you like instructions?" and entering 'YES", it goes: Somewhere nearby is Colossal Cave, etc. This means that I am now going to play Adventure. This has a serious drawback on the expansion of my website ... I am playing it on my "homebrew-PDP" with the BLINKENLIGHTS on!! On my website this project (early phase) has a separate link. BTW. What is VBGEXE, what do the letters stand for? Thanks again, Henk. > -----Original Message----- (snipped to save bandwidth)

23 years, 6 months

List Maintenance

by pete＠dunnington.u-net.com

On Oct 23, 14:35, John Foust wrote: > At 12:22 PM 10/23/01 -0700, you wrote: > >Is there an assumption that spam address harvesters would be incapable of > >replacing all occurences of 'DOT' with '.' and 'AT' with '@' ? > > If I were writing an e-mail harvester, I'm sure > I'd have quite an extensive subroutine that looked > for known patterns of spam-avoidance, and how to > undo them. I can't fathom why otherwise smart people > assume that other smart but nasty people won't think > of the same things they did, and be able to undo them. I'm sure you could/would -- but I'm also sure a lot don't. So trivial obfuscations probbly work to some extent, more especially in the context of trawling web pages, where there is no mandatory header labelled "From:" or whatever. -- Pete Peter Turnbull Network Manager University of York

23 years, 6 months

Reading non-PC format floppies

by ard＠p850ug1.demon.co.uk

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23 years, 6 months

Reading non-PC format floppies

by ajp166＠bellatlantic.net

What about PUTR and about a slew of other programs that know alternate formats? Allison -----Original Message----- From: Fred Cisin (XenoSoft) <cisin(a)xenosoft.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Monday, October 22, 2001 9:25 PM Subject: Re: Reading non-PC format floppies >On Mon, 22 Oct 2001, Jim Donoghue wrote: >> Any tools for reading non-PC 5 1/4" HD floppies out there? Tried reading them >> with DOS DEBUG, get 'Data Error'. > >DEBUG can only read legitimate MS-DOS disks. > > >For low-density ("360k"), Trakcess on the TRS-80 model III. > >Central point option board, TE program. > >Morgan Computing's Disk Toolkit (only for 512 byte per sector) > >XenoCopy-PC > >INT 13h > >programming the FDC directly. > >-- >Fred Cisin cisin(a)xenosoft.com >XenoSoft http://www.xenosoft.com >PO Box 1236 (510) 558-9366 >Berkeley, CA 94701-1236 >

23 years, 6 months

PDP-11 stuff in California

by mrbill＠mrbill.net

Guy has some PDP-11 stuff he needs to clear out. Contact: Ken Slusser <termtech(a)digitalputty.com> > On Tue, Oct 23, 2001 at 01:00:26PM -0700, Termtech wrote: > > Dear Sir > > I have a 1000 sq. ft warehouse full of used DEC pdp and pre IBM p.c. > > equipment / manuals / spares etc. > > I need someone to help me get rid of all of it. I realize it has some > > value on Ebay but my lease has run out and I need to recover some of my > > costs ASAP. > > I am in California on the central coast. > > Any suggestions. > > Thank You > > Ken Slusser > > TTi > > Termtech(a)digitalputty.com Bill -- Bill Bradford mrbill(a)mrbill.net Austin, TX

23 years, 6 months

DEC Lab 11/40

by pete＠dunnington.u-net.com

On Oct 23, 18:46, Tony Duell wrote: > > On Oct 22, 19:48, Tony Duell wrote: > > > > > On the output duct from the prefilter > Did I really say 'prefilter' there? I must be going senile. I meant > 'absolute filter' of course. The prefilter is the foam pad at the back of > the logic cage, and is not essentialy to the operation of the drive. I realised out what you meant :-) -- Pete Peter Turnbull Network Manager University of York

23 years, 6 months

TU-58 Tape Drive Problems

by dec.parts＠verizon.net

Hello Michael, Don't know if this would help you out or not, but Bob Armstrong developed a TU58 emulator at ... http://www.SpareTimeGizmos.com/Hardware/TU58_Emulator.htm Sincerely, Bennett > Hello to all VAXenfolks, > > i do have a problem with a VAX-11/730 that i have reconstructed > (cleaned, > resoldered, replaced cable, everything. Pictures on www.vaxcluster.de. > Yes, > i am a bit proud of it... But sorry for the bad web-page design!) over > the > last few months. > It is now willing to boot and tries to load it's microcode tape from the > TU-58 drives. I even have a microcode tape which looks like it could be > still readable. > But the TU-58's are so battered that i have not been able to read the > tape. > I have repaced the rubber rollers, but the read/write-heads look, ummm, > bad! > > I have found somewhere some TU-58 simulator software for DOS which looks > like a promising alternative; i would place a mini-DOS-computer inside a > VT-102 and route some additional cables to the VAX and bee fine. > > BUT: How do i get the contents of the microcode tape of the tape, into a > DOS file without access to a working TU-58? > > Is someone on this list able to read the tape? > Has someone already made a tape image i could just use? I mean, i have > a original DEC tape, with serial number and all. I might even come up > with a license document, if i search long enough... > > Any help would be greatly welcomed. This old lady is just to beautifull > to use it as an electric heater only... > > Thank you > > ms > > -- > Michael Schneider email: ms(a)silke.rt.schwaben.de > Germany http://www.vaxcluster.de > > People disagree with me. I just ignore them. > (Linus Torvalds)

23 years, 6 months

Sterling Cypher IV 8073 board info

by rcini＠optonline.net

Hello, all: I mentioned a while ago that I got these boards, and I actually received them last week. To do a refresh, this board is an INS8073-based SBC with lots of I/O in a compact 4x5 size. Someone mentioned that they may have access to the manual but I can't find that message. I need some info on these more than I thought. The kit comes with the board and parts and nothing more. The silk screen on the board only has parts designations (i.e., R1, C1, U1) but not the values. Some I can guess at but not enough to make it work. The only info that I have is on the 8073 specifically and not the board itself. A search doesn't turn up much. Any help appreciated. Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

23 years, 6 months

OT: power & ground for wirewrap boards

by mythtech＠Mac.com

> For the power and ground connections for each chip, a friend suggested I >should solder 16-gauge wire from a tie point or the power connector >straight to each chip and/or its bypass cap. The only 16-gauge wire I have >is stranded, and it's a mess to work with -- too large to work with easily >and the strands mean it won't really bend and stay on the tie point or pin. What kind of juice do those chips need? 16 gauge seems awfully heavy for any ICs I have worked with. I assume you know guages, but 16-18 guage is standard lamp cord and will let you draw 5-10 amps on 110 volt. This sounds good for a main power input to a transformer, but all ICs I have worked with only pull at max a few amps at much lower voltages, so you should be able to use much thinner wire. I would check your amp requirements, and move to an 18 or 20 guage solid or even higher if you can... phone station cord is usually 24 guage, but don't mix it up with the 26 guage multipair cord... the usual obvious difference is, station cord is 4 colors red/green/yellow/black.... multipair cord is 2 (or more) pairs of striped wire (blue, orange, green, brown, slate all striped with white for the first 6 pairs) But that aside, if you strip the standed cord, tiwst the strands in your finger, and then tin the end with your solder iron (heat the end, and let it draw solder into it, until it has a nice coat), it will be MUCH more managable (although it still in general won't stay where you bend it, other than the tinned end, lightweight alligator clips work wonders for holding things in place). -chris <http://www.mythtech.net>

23 years, 6 months

DEC Lab 11/40

by pete＠dunnington.u-net.com

On Oct 22, 19:48, Tony Duell wrote: > On the output duct from the prefilter (the trapezium-shaped thing on the > left of the spindle) there's another foam ring. This one is critical -- > it's in the clean air path from the filter to the cartridge. I am told > that draught excluder tape works here. I wondered about that. OK, it has to go, too. > Also, on top of the RK05 PSU there's a NiCd battery pack. It's there to > retract (and lift) the heads if the mains fails. It's nearly always dead > in old drives. Replace it. Fortunately it's the same as a common cordless > phone battery pack, so it's not hard to get a new one. I knew about that one; I didn't mention it before because I just took it as read that I'd need to replace it :-) Thanks again for the advice. Now all I need is time to get at it -- maybe this coming weekend. -- Pete Peter Turnbull Network Manager University of York

23 years, 6 months

DEC Lab 11/40

by pete＠dunnington.u-net.com

On Oct 23, 8:15, John Foust wrote: > So Pete, are you going to tell us the story behind > this find? There's not much to tell, really. It originally belonged to the University's Psychology Department, which has moved between buildings a few times, and it was left in a small storeroom at the back of a building they left some time ago. I bought something from a postgrad in the building, and whilst chatting he mentioned that the AV technician was also into oold computers, so I paid him a visit. In the course of *that* conversation, he mentioned there was a disused PDP-11 that would need moved in time for a forthcoming building refurbishment, and the rest, is, as they say, history. I try to make sure that people around the campus know I'm interested in old machines, and from time to time something interesting turns up :-) I probably won't have much time to do anything other than gaze at it every time I walk past, until the weekend, but I'll let you know how I get on. I'm also trying to sort out the 6000VA UPS (unrelated acquisition) I got last week, and mentioned on the list. I've got as far as getting it powered up without tripping the 32A circuit breaker, getting the diagnostics and status out of the serial port, and have figured out why it doesn't like the batteries: the two sets of ten 12V lead-acid batteries are all flat. None reads more than 0.2V :-( I presently have a pulse generator/charger on some of them, to see if I can get any life out of a few. It looks moderately hopeful. -- Pete Peter Turnbull Network Manager University of York

23 years, 6 months

List Maintenance

by pete＠dunnington.u-net.com

On Oct 22, 18:09, Fred Cisin (XenoSoft) wrote: > On Tue, 23 Oct 2001, Pete Turnbull wrote: > > OTOH, it's possible that my additional spam collection has come from Usenet > > trawling rather than list archives, I suppose. > > You blame the list for additional spam, when you've been using the same > e-mail address on usenet ?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!? Don't be ridiculous! I hardly ever use Usenet from this domain now that my ISP's news server seems to be unmanaged and uncared for. I usually post >from work (different address, and munged). And I *always* mung the address on Usenet. -- Pete Peter Turnbull Network Manager University of York

23 years, 6 months

List Maintenance

by DAW＠yalepress3.unipress.yale.edu

!-----Original Message----- !From: pete(a)dunnington.u-net.com [mailto:pete@dunnington.u-net.com] !Sent: Monday, October 22, 2001 8:54 PM !To: classiccmp(a)classiccmp.org !Subject: Re: List Maintenance ! ! !On Oct 22, 12:39, Sellam Ismail wrote: ! !> But for people using the archives for research it would be nice to be !> able !> to e-mail the original poster (unless the address obscuring !> we're talking !> about will not completely remove the e-mail address from the !> message). ! !I agree; it's been useful to me on a number of occasions, both !when I've !searched for something and when someone else has found me !through the list. ! I wouldn't want my address removed, just altered enough so automatic !spambots won't get my address too often. ! !....... !-- !Pete One good way I've seen to munch the address is... change "computer.geek(a)computer.com" to "computerDOTgeekATcomputerDOTcom" --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818

23 years, 6 months

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test-drb October 2001