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

Fleamarkets (was Re: A LART is needed (was: VCF 4.0))

by dhquebbeman＠theestopinalgroup.com

> FWIW there was what must've been a 30" disk platter > at the MIT Flea this weekend, mounted on its > center hub. Never saw a disk larger than 14" > before. Didn't get the manufacturer but the > price was $40.00 and the seller was Frank Fink. Frank's alive? He owes my company money for returned product for which he never issued a refund. I'd assumed he'd died. <sigh> -dq

25 years, 10 months

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AT&T 6300 PC

by jolminkh＠nsw.bigpond.net.au

This machine is very common in Australia but is badged as an Olivetti M24. Magazines of the time had many ads for them and it's contemporary the NEC APC III Hans > >A new addition to my collection, an AT&T 6300 PC. Some stats that I have >so far: > > i8086 CPU > 640 K RAM > Weird keyboard > green monochrome display > Boots MSDOS 3.3 happily > >I'll do some searching on the web later tonight for info on it, as well as >cleaning it up, but if anyone has information on this little artifact, its

25 years, 10 months

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New stuff

by agraham＠ccat.co.uk

Hi folks, Some recent additions to the BD collection, courtesy of a customer who was about to skip (dumpster) the whole lot of 'em! Well, the skipping happens tomorrow so I saved 1 of each: VT100 (yay), serial #AB00914 so I don't know if that makes it early or not? Worked fine once I put the fuse in properly and reseated the space bar on the keyboard :) Aaah, that keyclick of yore.... VT320 with keyboard VT420 in box VT510 w/keyboard VT520 w/keyboard (yes I know you can still buy 'em but I hate seeing anything chucked!) Rainbow 100+ with screen & keyboard....works fine running CPM/86....... Also got a couple more Pongs at the weekend including the Tandy TV Scoreboard in tasteful orangey-brown..... And as a P500-related aside I am the current custodian of my own P500's stablemate which I have to say is in far better condition (packaging wise) than mine but sadly the keyboard doesn't work. What are the chances of this - a guy working for Commodore brings a couple of P500s in for a shop called Vulcan Electronics in London in what, 82/83?. Both are packaged identically, both have german power cords etc and are taped up the same way. One ends up in a collector's loft courtesy of said Commodore bloke and the other ends up being picked up by me at a local boot sale. The machines are 30 miles apart and I already know the bloke that has it in his loft! Spooky, that's what it is. -- Adrian Graham MCSE/ASE/MCP C CAT Limited Gubbins: http://www.ccat.co.uk (work) <http://www.snakebiteandblack.co.uk> (home) <http://www.binarydinosaurs.co.uk> (80's computer collection) "Missing you already" - Mark Radcliffe

25 years, 10 months

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Free Intel MDS

by jolminkh＠nsw.bigpond.net.au

I'm local to them and have made contact by phone but got a fuzzy answer. They'll check it out. I note the web page was last updated in February 1999. -----Original Message----- From: Joe <rigdonj(a)intellistar.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Thursday, 19 October 2000 7:49 Subject: Free Intel MDS > I was searching for more info on the Inel MDS and found this ad for a >free one. "http://www.dazed.org/blazermate/". There just one hitch, it's >located in NSW, Australia. I don't know any more about it. If someone >picks it up leet me know. > > Joe > >

25 years, 10 months

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Dauphin DTR-1 running Ersatz-11

by healyzh＠aracnet.com

Thanks to the CP/M User Group swap meet today I'm closer to my dream of a PocketPDP-11, as I picked up a box of Dauphin DTR-1 stuff, with three complete systems which are already earmarked (unfortunatly my wife wants one for some simple games). Still that leaves one for the PocketPDP-11 (if you've big enough pockets), and a console for the VAXlaptop project! Anyway the Dauphin is basically a pin-based handheld (that will accept either thier mini keyboard or a standard PS/2 keyboard) 486/25 with a 64 shades of grey 640x480 LCD display running MS-DOS 6.0, and Windows 3.1. I've got the external floppies, and an internal 40MB HD. I've loaded Ersatz-11 onto it and I've got a RT-11 RL02 image that I've used with the Supnik emulator. I'm doing the following with Ersatz-11: set cpu 23 mount dl0: c:\e11\rt11.dsk boot dl0: However, it just sort of sits there, and does nothing :^( Anyone have any ideas? It's not showing any indication of RT-11 booting. 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/ |

25 years, 10 months

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Who collects (reads the mailing list...?) vintage computers

by ajp166＠bellatlantic.net

From: Richard Erlacher <richard(a)idcomm.com> >Was that uPD 372 the version that handled hard-sectored diskettes as well? It could. >I remember they had a uPD 371 as well, but I'm not remembering whether it >was a tape controller or a hard-sectored disk interface controller. I seem >to remember something of that sort being available in the mid-late '70's. All the way up to 1980. I have some 371s too. makes a fair tape controller. Though I found using a 765 or 1793 far easier to use as the old 37x parts were three voltage nmos and two phase clocks. They were ok with systems that had 8080s. >I remember Robert Suding once telling me that the reason they couldn't do >any better with their FDC's was because the 74S124 (VCO) was too expensive. >Now, I used it from time to time and don't rmember ever paying more than $2 >for one. Of course, you never know how long before then the DG people were >trying to buy the things. the 74124 was fast enough and pretty cheap. PLLs using it were a pita. If you used it there was a lot of other TTL around it so it was not the cheapest way to go and often the flakeyest. A good design with oneshots worked well enough. Later one when people figured out how to do a digital oneshot or digital PLL then it got real cheap. Allison

25 years, 10 months

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Red Erasors, contacts, and gold revisited

by b.layer＠vikingelectronics.com

>Anyone tried this snake oil^H^H^H^H^H^H^H^Hamazing substance? Quantum tunnelling eh? No comment :) FWIW, I am still a big fan of LPS-1, I've used it for years to clean & restore some of the most inconsolable antique potentiometers & switches. I would think that a greaseless lubricant of that type would be very happy on computer connectors.. As for erasers, I'm assuming that red pencil erasers are out due to their slight abrasive characteristics? what about the 'kneaded' erasers that chalk / conti artists use? (I'm not talking about Artgum ) Please let me know if this is bad thinking... Bill PS Thanks to everyone for posting the wealth of MDS background - I now feel like it was worth my time to drag this behemoth home. Hey, anything with a bank of switches & lights has got to be OK, right?

25 years, 10 months

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PDP-8 question...

by ajp166＠bellatlantic.net

-----Original Message----- Mega thanks, that makes some sense looking at the board. I'd suspected something like that. Te ability to start on any 4k boundary is nice. The 74138 on one side and the '20 on the other should have screamed at me. Allison >The 16 pin DIP socket has a "black box" plugged into it. Hmm, popping >that box open reveals the expected jumpers. > >Looking down at the jumpers, the upper left corner is pin 1, upper right >is pin 16, I have 4 wires installed: > > pin 5 - pin 14 > pin 6 - pin 13 > pin 7 - pin 12 > pin 8 - pin 11 > >My board is set to cover fields 4 - 7. > >My guess would be that the 3 EMA bits are decoded into 8 lines, and are >present on pins 1 - 8, corresponding to DEC field terminology 0 - 7, >which makes obvious sense since pins 1 - 8 are on one side of the >DIP jumper, and that pins 11 - 14 are the individual 4Kx12 field >select jumpers. > >-Lawrence LeMay

25 years, 10 months

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Fleamarkets (was Re: A LART is needed (was: VCF 4.0))

by John.Allain＠donnelley.infousa.com

It aint no VCF, but the last MIT Flea of the year is this Sunday! (IBM 5100 last seen: 1992, $200.00) http://web.mit.edu/w1mx/www/swapfest.html John A. (Didn't buy it. Fool!)

25 years, 10 months

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IDE on Qbus (was Re: Microvax II)

by ajp166＠bellatlantic.net

From: Phil Budne <phil(a)ultimate.com> >> Has anyone designed a quick-n-dirty Qbus IDE adapter? > >see ftp://digital.dp.ua/DEC/ata/ Knew someone would look. ;) > ATA disk interface See above. > BOOT EPROM or Flash MRV11 with what you need in eprom or MXV11 M8189 11/23 takes eproms on the cpu. > Crystal CS8900 Ethernet DELQA > 512KW SRAM MS11 memoriesare out there. > SuperIO (ie; WinBond) > or > NS16550A (or eqiv high-speed, deep FIFO) UART for networking/kermit > Floppy ctrlr (capable of driving Shugart 8", 5.25" 3") Well the 16550 is basically a DZV-11, DHV11, that will get you a bunch of lines good to 38kb FDC for the mix if 3.5 or 5.25 is RQDX3, late rom. 5.25 is rx50(400k) and rx33(1.2m) 3.5 is rx23(1.44m) and rx24(720k) 8" is RX02/RX12. 256k/512k with 256k standard sssd 8" media and formatting. > ISA Bridge Why bother. Now if you wanted that all on a 8x9" board then I'd perk up my years. Allison

25 years, 10 months

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Who collects (reads the mailing list...?) vintage computers

by ajp166＠bellatlantic.net

From: Eric Smith <eric(a)brouhaha.com> >The originally shipped a single-density FDC for 8-inch drives. It used >some NEC single-density only FDC chip that was *NOT* related in any way >to the uPD765 or the Intel 8271 or 8272. I don't recall the part number, >but it was almost certainly uPD and three digits. The uPD372... I have two of them. Allison

25 years, 10 months

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48v dc power

by ajp166＠bellatlantic.net

From: Joe <rigdonj(a)intellistar.net> >>400ft, 10mhz clock for a S100 z80 system that was also distributed to >>other boards on the bus. A modification to the termination of that line >>virtually made it disappear, the standard terminators didn't actually >>match the impedence of the line making it antenna. Other hot one >>was the Altair you could hear the 2mhz anywhere in the house >>with the case on. > > Was that being ratiated via the AC power lines or the keyboard cable or >what? > > Joe The altair just radiates.... All the jungle wire fromthe FP to bus. There was no attempt to provide ground planes or decent grounding. None of the systems I mentioned would have a "keyboard cable". Allison

25 years, 10 months

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IDE on Qbus (was Re: Microvax II)

by ajp166＠bellatlantic.net

From: Ethan Dicks <ethan_dicks(a)yahoo.com> >Has anyone designed a quick-n-dirty Qbus IDE adapter? If one is willing >to let the VAX processor do the work, it could be as simple as mapping >the I/O registers of the IDE drive into some I/O addresses. Not much >more than a few Qbus drivers and an address comparator, a la older ISA >IDE cards. It would probably heavily tax most CPUs, though. Some Russin person did. it's out on the net somewhere. As to taxing the older CPUs... How? IDE can do real slow, that's not much of an issue. Most of the VAX cpus do not handle interrupts very fast due to the huge overhead of context switch. But they can PIO in a loop fairly fast, that is to the limits of Qbus. Allison Allison

25 years, 10 months

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Fixing a TK86

by cmcmanis＠mcmanis.com

Hello Everyone, I seem to be in possesion of a "broke" TF86 drive. As far as I can tell the only thing "wrong" with it is that it seems to have unhooked its "tongue" (the take up leader) and I've fixed that. Now I was wondering if there were any tests I could run on it before I tried putting it into a chassis to see what it does :-). It has a separate "bridge board" that converts its HD50 connector to DSSI. Some things I'm trying to ascertain: 1) Can I convert it to a TZ86 using the bridgeboard from a TK85? (they at least share connector similarity. 2) Is there any way to test it without hooking it to a DSSI bus? 3) Does anyone know the MOLEX part number for the 5 space DSSI power plug? --Chuck

25 years, 10 months

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Red Erasors, contacts, and gold revisited

by dhquebbeman＠theestopinalgroup.com

> Hi > I also find it interesting to see the following app note: > > http://www.stabilant.com/appnt32h.htm > > I have never seen the problem they are talking about and > I have a sea going sail boat. According to their note, > this should be the worst condition. Makes me wonder > what I might be doing that is different than what > they are doing? Are you cleaning periodically with the silicone? Perhaps you're cleaning it often enough to prevent the silicate >from forming... -dq

25 years, 10 months

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VMS with no documentation

by ajp166＠bellatlantic.net

From: Bill Pechter <pechter(a)pechter.dyndns.org> >The real fun on VMS is how slick EDT is with a good VT100/220. > If you think EDT is slick... try TPU or LSE after that Word will be intolerable. Allison

25 years, 10 months

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Amiga stuff (was Re: NEC APC available)

by ethan_dicks＠yahoo.com

--- John Foust <jfoust(a)threedee.com> wrote: > At 09:10 PM 10/12/00 -0700, Chuck McManis wrote: > >I recently gave away all my Amiga stuff. And it wasn't because it wasn't > good stuff. > > Argh! I trust it found a good home. I haven't morphed far enough to > toss my Amiga schtuff, which includes the truly rare and obscure. > > I get the impression that today's Amigoids aren't interested in the > historical details, but more the latest-greatest that keeps their machines > functional and alive. Speaking of keeping Amigas alive, if anyone is looking to use semi-modern hardware with an Amiga, (*begin blatant commercial plug*) I still stock the GG2 Bus+ ISA adapter card, new, with factory warranty. They aren't exactly flying off the shelves these days. Contact me off list if you want details. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Messenger - Talk while you surf! It's FREE. http://im.yahoo.com/

25 years, 10 months

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IDE on Qbus (was Re: Microvax II)

by ethan_dicks＠yahoo.com

--- ajp166 <ajp166(a)bellatlantic.net> wrote: > IDE is fairly stupid and easy to interface as PIO, DMA would not be that > bad for vax or PDP11 but you would pay for it by needing drivers as > there are none. . . . > RT-11 and the overlay TSX-11 are easy compared to something like VMS. I've written VMS drivers from scratch (for the VAXBI COMBOARD) and I've dug deep into someone else's code for an AmigaDOS IDE driver (PIO via ISA interface and GG2 Bus+ ISA bus adapter). If it were possible to make an inexpensive IDE adapter for Qbus, I'd be more than happy to tackle a driver. I've got a couple of uVAX-IIs, KDF11 CPUs, etc., so the rest of the system is no problem. Has anyone designed a quick-n-dirty Qbus IDE adapter? If one is willing to let the VAX processor do the work, it could be as simple as mapping the I/O registers of the IDE drive into some I/O addresses. Not much more than a few Qbus drivers and an address comparator, a la older ISA IDE cards. It would probably heavily tax most CPUs, though. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Messenger - Talk while you surf! It's FREE. http://im.yahoo.com/

25 years, 10 months

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Red Erasors, contacts, and gold revisited

by dhquebbeman＠theestopinalgroup.com

> I'm sure the Canadian product uses some kind of silicone > oil. I have friend with a can of silicone oil ( like is > used in car waxes ). I'll have to try it to see if it > has similar contact improvements as the grease does. You can buy Stabilant 22 in dilute, ready-to-use form, or in large quantities as a concentrate. They describe it as a polymer, specifically: Polyoxypropylene-Polyoxyethylene Block Polymer of the Polyglycol family Any of you chemists know if this happens to be the same as/ related to silicone? Link to manufacturer: http://www.stabilant.com/techt01h.htm regards, -dq

25 years, 10 months

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VMS

by mac＠Wireless.Com

http://www.nwfusion.com/news/2000/1010newvms.html -Mike C

25 years, 10 months

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PDP-8 question...

by ajp166＠bellatlantic.net

>Well, mine is set for fields 4-7, but I dont have any docs. And since >its working i'm hesitant to tear it apart. > >-Lawrence LeMay Tear it apart? This one is only two boards at the top one is the only one with significant logic and drivers. the other is the diode matrix and core mat. There is a DIP socket in the middle (mine has nothing in it) and a set of three posts one dip above it. If you could tell me what you have there it would help. I'd like to get mine into fields 0-3. then I can put the 4k at field 4 making a nice tidy 20k system. Then I have to get some mass storage going. I do have two serial cards (m8650 and 8652)so at least I can fake a serial reader with a glass console. Allison >> I just got a DATARAM DR118A core (16kx12) for Omnibus

25 years, 10 months

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early non-US personal computers

by mranalog＠home.com

Doug Salot <doug(a)blinkenlights.com> said: > Hey unamericans, any candidates for personal computers made outside of the > US before 1976 (other than Micral)? > > Define "personal computer" any way you like to as long as you define it > this way: digital, (semi)automatic, programmable, accessible/available, > small, inexpensive, and simpler than an F-14 fighter jet :-) Turing > completeness helps, but I'm flexible. We this WOULD have have been a good opourtunity to talk about the 1971 English computer I received in the mail last Wednesday from the NE coast of England. I WOULD have said that it is a "Educational Analogue Computer Type C180" made by Physical & Electronic Laboratories Ltd. It has 18 amplifiers, 16 of which can be used as integrators. It my first general purpose analog to use intergrated circuit amplifiers. The DIP 741 amplifiers are are in beautiful all gold packages with date codes of 7105. And I have a picture at: http://www.best.com/~dcoward/analog/c180.jpg But, I'll save this for later. The person I bought this computer from does have some newer digital computers for sale. He has 18 Memotech MTX512s and other Memotech stuff that he is hoping to sell as one lot. He also has Atari STs, Amstrads, Amigas, Atari Lynxs, games for the Lynxs and VIC20. See the whole list at: http://www.theoldecomputerosityshop.freeserve.co.uk/Computers/Computers.htm The Olde Computerosity Shoppe, Harlepool contact: "john.masterman" <john.masterman(a)ntlworld.com> --Doug ========================================= Doug Coward Press Start Inc. Sunnyvale,CA =========================================

25 years, 10 months

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VMS

by cmcmanis＠mcmanis.com

Yeah, but they don't mention a VAX version :-( --Chuck At 10:44 AM 10/16/2000 -0700, you wrote: >http://www.nwfusion.com/news/2000/1010newvms.html > >-Mike C

25 years, 10 months

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Red Erasors, contacts, and gold revisited

by dhquebbeman＠theestopinalgroup.com

> Sorry to bring this one back up, but I was cruising the Classiccmp > archives and read the thread. > > I liked the idea of dipping the erasor in alcohol. Nice bearing fluid and > would help reduce abrasion as well as acting as a solvent and carrier for > gunk. > > Not all contacts are gilt which is one application for abrasives. The > hard disk MIO for my Atari 8-bit is an example. It's traces are unfinished > tin-colored things and they oxidize rapidly. > > Some of you folks had solutions to check the oxidation such as silicone > grease. Could you amplify on this and especially what type of grease and > where to find it. Another possibility (one I haven't tried with computer gear) would be a substance called Stabilant 22... it's made in Canada, can't recall the name of the firm. It's a liquid described as a contact enhancing fluid, and operates as both an insulator, and as a conductor through what they call "quantum tunnelling". I use it on automotive connectors, and no treated connector has yet shown signs of oxidation. Anyone tried this snake oil^H^H^H^H^H^H^H^Hamazing substance? regards, -doug q

25 years, 10 months

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Paging Anthony Eros

by cmcmanis＠mcmanis.com

Has anyone heard from Tony recently? I'm beginning to get concerned that perhaps something has happened to him. --Chuck

25 years, 10 months

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48v dc power

by ajp166＠bellatlantic.net

From: R. D. Davis <rdd(a)smart.net> >Out of curiosity, what's the furtherest distance anyone here has >noticed RFI from their systems (open or closed)? 400ft, 10mhz clock for a S100 z80 system that was also distributed to other boards on the bus. A modification to the termination of that line virtually made it disappear, the standard terminators didn't actually match the impedence of the line making it antenna. Other hot one was the Altair you could hear the 2mhz anywhere in the house with the case on. Usually if you can isolate the freq you can tame it. one that get me every time is the 15700 hz horizontal retrace >from TVs with most monitors running second, all plastic cased. Most stuff in a metal box with screws in tend to be quiet and commercial systems like DEC, SUN and HPs in full dress tend to be quiet if made to the specs in effect after 1980ish. PCs however are all over the map, some excellent and some very poor. Allison

25 years, 10 months

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Alphastation 255 question..

by mlnealey＠earthlink.net

Hi All! Quick question. Does the Digital Alphastation 255 take a regular ( as in PC type ) floppy disk drive? Is there a special DEC FD drive I need to get? I have a part number for the FD from DEC but the part description doesn't tell me anything and the purchase price for the item is about what you would expect for a PC type floppy drive buying direct from a manufacturer. Any help is appreciated... Thanks... Mike N.

25 years, 10 months

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Paging: Jason McBrien

by jeff.kaneko＠juno.com

Guys: Sorry for the intrusion, but I haven't received responses to my e-mails; so Jason, if you're reading please e-mail me ASAP at: jeff.kaneko(a)juno.com Thanks! We now return you to our regularly scheduled programme . . . ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 10 months

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Who collects (reads the mailing list...?) vintage computers in Quebec, C...

by LFessen106＠aol.com

In a message dated 10/14/00 10:56:08 PM Eastern Daylight Time, claudew(a)sprint.ca writes: > Hi > Sometimes I think I may be the only vintage computer collector in > Quebec, Canada. > I would like to hear if anybody else does any collecting around here > (Montreal area) > I have yet to find anybody to trade or talk collecting face-to-face > anywhere around here even if I have posted on several montreal > newsgroups that I am looking to buy/trade this kinda stuff... > When I mention I collect vintage computers, people look at me like I am > due for a trip in the "wacko wagon"... > Computers are tough to find here (not like california...) I have managed > to accumulate/fix/restore approx 50 micros (all working) from the > 197x-198x early 1990's...lotta books, software and peripherals... > Those who feel sad for me can send me their Lisa's, TRS model IIIs and > Next boxes ;-> > ...things I will probably never find around here and I refuse to > purchase them on ebay for a zillion bucks... > Thanks for reading > Claude Hi Claude! I may not be a Canadian Computer Collector, but I do collect computers, and I have even been to Montreal :-) Seriously though, I know how you feel. I live in PA, USA, and I know for a fact there are at least 2 other major collectors in the state, but have never been able to get either of them to respond to my emails. The other problem I am having here is that I would like to collect "business type" UNIX stations, servers, etc, like Sun Sparc's and Decstations, etc, and the only thing I am able to find anywhere are PeeCees. Ugh. I also used to collect Commodore and Apple II computers - and still have a fairly decent selection. You all can view my web page at http://members.aol.com/lfessen106 There is a description of my machines, some tips on collecting in general, and some other misc information. Let me know what ya think. -Linc Fessenden.

25 years, 10 months

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R.F. Interference (Was 48V)

by jpl15＠panix.com

On Topic: I am reminded by the "RFI" from open machines thread, of the tried-and-true early computer music method of simply placing an AM Broadcast reciever next to one's Box and then diddling the various registers, front panel displays, etc., until the tones generated by the RFI made the 'music' patterns in the radio's speaker. This was also echoed in the many compositions for various line and dot-matrix printers, and the obscure but maybe better known theme music to NPR's financial program (Wall Street Week?) [Louis Rukeyser] which used a tape punched to make an ASR33 do a repeating pattern and the resulting sounds recorded and used as the rhythmic basis for it, the which music was called TWIX in Twelve Bars. (composer name escapes me completely) Off Topic: Shortwave radios. I have gotten hold of an ICOM PCR-1000, which is the actual 'radio' parts of a modern full-coverage receiver, minus the front panel. One uses various programs on a PC.laptop, or Mac to 'run' the unit. Since the operation is computer-based, many possiblities open up that were before only the province of agencies and *really* dedicated radio-heads. It covers 100KHtz -> 1.3GHtz continuous but for the Cellular bands, which are blocked. It is the size of a small book and wieghs a pound, runs on 12VDC. Just add antennae.... www.icomamerica.com and look in 'recievers' for more info. Cheers John

25 years, 10 months

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Halon dumps: a data point

by ajp166＠bellatlantic.net

To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Friday, September 15, 2000 8:36 PM Subject: Re: Halon dumps: a data point >That depends upon whether or not Algore is elected president. If he's The alternates scare me more. >I know what you're thinking. Linux, FreeBSD, NetBSD, etc. probably >won't stoop to this level, but, do they count enough for manufacturers >to still keep producing hardware for them if Microsoft, and even >manufacturers of commercial UNICES, etc. begin taking that approach And crazies like me will be running PX-8s with solidstate disks made >from all that huge and very cheap ram out there. >and electricity use is rationed, and those of us here in the states >can't get enough gasoline or natural gas to power a generator, what >good will our collections of power-hungry real computers over here do Any my CPM system running on solar/battery will run fine. Such a dark world your in. Me, I'll keep trucking, I did all those years before the so called great boom I'm still waiting to ride. I made it through the '73 oil embargo, and the three after that too. If you so doom and gloom try this... WE aka BELL bought vaxen that ran off 48V... Always wanted one of those BA213s. the Americas cup racer america carried one of those when PCeees were still useless. Now are there endless hacking possibilities or what? How about a 24x365 system that runs off hydro,or maybe wind... sure it's not going to one of those power nasty 733s but a laptop no problem. What may be missed is the internet is about who has info and what it may cost when it gets hard to find. Allison

25 years, 10 months

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48v dc power

by dburrows＠netpath.net

> >Most stuff in a metal box with screws in tend to be quiet and >commercial systems like DEC, SUN and HPs in full dress >tend to be quiet if made to the specs in effect after 1980ish. >PCs however are all over the map, some excellent and >some very poor. But I know in the case of DEC that if they are open like my test beds are then you can forget everything except REAL strong FM broadcast in the same room. The 2M rig with an outside antenna even gets hit. This is in a metal sided and roofed office trailer. Dan

25 years, 10 months

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48v dc power

by ajp166＠bellatlantic.net

From: THETechnoid(a)home.com <THETechnoid(a)home.com> >I heard that! I wonder what my machines are doing to the airwaves. I've >walked around the house with my shortwave receiver looking for freqs from >the khz range up to 30mhz. Not really a problem. Radio Moscow comes in >clear even if I have the whole house 'lit up'. > >Does this mean I have clean systems or should I test some more? If you can't hear it on a resonable reciever your doing good. Here I have birds on a lot of freqs and I've traced the source, the monitor is the worst culprit. If I turn off the monitor it gets much quieter. My favorite pastime is listening to the AM window at 3885KHz on a custom monobander I made. Keeping the systems in the cases does help or I start hearing carriers up and down the bands. Allison

25 years, 10 months

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my return

by jhellige＠earthlink.net

Hello All, After a roughly 3 year absence from this list, I've finally settled down in one place long enough to be able to handle it's traffic once again. I look forward to all the good discussions once again! Jeff -- Power Computing PowerCurve, 400mhz G3, Mac OS 9.0.4 Collector of Classic Microcomputers and Video Game Systems: http://www.geocities.com/siliconvalley/lakes/6757

25 years, 10 months

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Need help or service manual for RS COCO mini disk 26-3022...

by ajp166＠bellatlantic.net

From: Joe <rigdonj(a)intellistar.net> >>Coco were Shugart SA400s. That is a 35 track drive with the spiral groove >>disk. Allison pointed out that there was a later model (SA400L) that >>could handle 40 track. BTW, if you have decent machine shop capabilities, >>the SA400 could easily be modified for more tracks, but it is NOT a >>handheld Dremel task. > > > How many tracks can they be made to handle? Any details about how you go >about changing them? The number is 40 and it's at 48tpi. Te trick before the SA400L (40 tr) version was around was to mill the groove further and mill the end stop. Both were done at high precision. Or sub in the disk from the sa400L. It was done back in the days when 35 tr was passe` and 40 tracks were emerging as the standard for 5.25 floppies. It was a big deal then as with single density that meant another 12.5k on an 90k disk. If you had DD controller so much the better. Other common mods were to go to SA450s (40 cylinders two sides) or other far better drives. Allison

25 years, 10 months

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Need help or service manual for RS COCO mini disk 26-3022...

by rigdonj＠intellistar.net

At 09:44 AM 10/15/00 -0700, "The Forslunds" <forslund(a)tbaytel3.tbaytel.net> wrote: >On Sun, 15 Oct 2000, Claude.W wrote: >> >>These are the 1st floppy disks for the COCO made by RS. The units are >> >>TEC FB-201. > >At least around here, the very FIRST drives that RS made available for the >Coco were Shugart SA400s. That is a 35 track drive with the spiral groove >disk. Allison pointed out that there was a later model (SA400L) that >could handle 40 track. BTW, if you have decent machine shop capabilities, >the SA400 could easily be modified for more tracks, but it is NOT a >handheld Dremel task. How many tracks can they be made to handle? Any details about how you go about changing them? Joe

25 years, 10 months

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Greetings!

by ajp166＠bellatlantic.net

>Hello all, my name is Gene Buckle and I run the Commercial CP/M Software >Archive at http://deltasoft.fife.wa.us/cpm. > >This list was pointed out to me by a nice gent on comp.os.cpm. I've got a >MicroVAX II that I need drives for. Both of my RD54 drives have pretty >much given up the ghost. I'd like to obtain a SCSI board for it since my >chances of getting a pair of RD54 drives are fairly slim. :) If anyone >knows where I can get one, please let me know. RD54s are Maxtor2190s 159mb 1224 cyl, 15 heads. You can substitute other MFM dives if you can find the formatter (or a MV2000 to use as formatter). VMS is fairly tolerent of different drives, NetBSD does too. >rx55[?] two 8 port serial boards (DHV-11's I think) and a DEQUNA ethernet RX55? do you mean RX50 (dual 5.25 SSDD 96tpi) or RX33 (5.25 teac fd55GFV that does both RC50 and 1.2mb RX33)? Allison

25 years, 10 months

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Need help or service manual for RS COCO mini disk 26-3022...

by ajp166＠bellatlantic.net

>I am sure there was a service manual for these, RS had a service manual for >almost everything they sold back then including stuff like calculators!...I >actually bought a lot of about 300 at one point and threw them all out after >a few years not using them.... > >Thanks for the reply >Claude Contact RS, they may still have manuals. The TEC201 is unfamiliar to me but the mechanism sounds like the Shugart by a different name. The alternate solution is a newer 48tpi drive jumperd as needed. Allison

25 years, 10 months

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Greetings!

by ajp166＠bellatlantic.net

>At 22:55 14-10-2000 -0700, you wrote: > >>Hello all, my name is Gene Buckle and I run the Commercial CP/M Software >>Archive at http://deltasoft.fife.wa.us/cpm. Gene, welcome to classiccmp. Say Hi to Tim O. too. Allison

25 years, 10 months

2
1
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Microvax II

by ajp166＠bellatlantic.net

Ok, lets try this way. You want to use a disgustingly large drive (Larger than 8GB) on a Qbus controller. First problem, do you have a SCSI-(anything) that knows and can handle drives larger 4 or 8GB regardless of the connector? Assuming you have that covered, can you back it up in an average lifetime? Allison From: Jerome Fine <jhfine(a)idirect.com> > >> >Anyone out there who wants to try? I would be very pleased to >> >swap some of my time for a couple of SCSI 32 GByte hard drives >> >to test out the software. The only problem is that the only SCSI >> >host adapters I have are the 50 pin type (CQD 220/M), so there >> I've run my PDP11 with SCSI CQD already as it's MSCP, Same >> for VAX/VMS (it's in my MVII). > >Jerome Fine replies: > >It seem like we agree. The question I was asking was whether or not >SCSI-2 drives with the 50 pin interface are made that have a capacity >of more than 9.2 Gbytes such as the ST410800N - preferably at >least 16 GBytes are maybe even 32 Gbytes. Since I already know >about this Seagate drive and I agree that is is reasonable in cost, it >is the larger drives that I am asking about - sorry if I was not clear >as to the question. > >> It's limited to 4 or 8gb and SCSI-II so forget the reall monster drives. > >Are you sure? Is anyone aware of larger drives that still use the 50 pin >SCSI-2 interface? > >> The idea of such huge drive with RT11 and friends is that is wasted. >> I use D540s (31mb) and swap them like carts as I have a bunch of em >> and they are plenty big enough. Drives in the 120-400MB range are >> plentyful for me, one 200mb drive would take all the binaries and >> sources I have with room to spare that aren't already on Tims CD. >> Whats the point? > >The point is that maybe you are not the only person who runs with >drives that are so small. And while I agree with you that probably >most RT-11 or TSX-PLUS users do not use drives even as large >as 2 GBytes (I use a 600 MByte drive myself and find that is normally >more than enough capacity), there may be a few who could benefit >from even larger drives. The problem with the standard MSCP >DU(X).SYS device driver in RT-11 is that the software limits the user >to easily using drives that are smaller than 8 GBytes. While I know >that you are aware of the limitation, the actual question I asked is >if MSCP allows the hardware use of drives up to a 32 bit block >number? Again, I obviously did not make my question clear >enough since you did not answer it. Namely, if the DU(X).SYS >device driver in RT-11 could handle sending more than a 24 bit >block number to the hard disk drive via the use of SET commands >(which would allow a partition number with more than 8 bits), could >the hardware handle that? > >I did not say that everyone would want to make use of that feature >if it were possible - I know that you will not and I will not. I was >just asking if it were possible and maybe someone might want >to do so? > >I guess that the point I am trying to make is that I enjoy a software >challenge whereas you enjoy a hardware challenge. I look a >some hardware and see what is. You look at the same hardware >and see what could be. I guess that I do the same with software. >Then I also go ahead and try make it work. Many times, I actually >can enhance or fix software just as you make changes to the hardware. >Can we agree on that? > >Sincerely yours, > >Jerome Fine >

25 years, 10 months

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Need help or service manual for RS COCO mini disk 26-3022...

by ajp166＠bellatlantic.net

>At least around here, the very FIRST drives that RS made available for the >Coco were Shugart SA400s. That is a 35 track drive with the spiral groove >disk. Allison pointed out that there was a later model (SA400L) that >could handle 40 track. BTW, if you have decent machine shop capabilities, >the SA400 could easily be modified for more tracks, but it is NOT a >handheld Dremel task. Actually if you have SA400s better to replace them with most anything else unless it's strict preservation. I still have a few for that reason. Those things were horrid. >Later drives around here included Tandon (TM100-1)? and TEC. Tandon uses The TM100 was far better. >Was the "TEC" label on the drive itself, or on the case (possibly a drive >had been changed?) Likely TEC on the outer case, thats why I said open it and see if they are SA400s. Allison

25 years, 10 months

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Need help or service manual for RS COCO mini disk 26-3022...

by claudew＠sprint.ca

>>These are the 1st floppy disks for the COCO made by RS. The units are >>TEC FB-201. >> >>Large full size mounted on their side in silver case with power supply. > >> >>When dskinit (format) command issued, they go about 35 tracks then an >>error is reported on the COCO screen. > > >You sure it isn't the first drives for the TRS-80? The symptom would be >the older SA400 drives designed for 35 track operation used within. >The later drives were SA400Ls that were designed for 40 track operation. >Both used the spiral groove cam but one was a bit different. > >Open up the box and see which you have. > >The other possibility is old (really old) media ment for the 35 track >drives and this media has a smaller "window" in the jacket that will >limit head travel. > >>They can't read a disk formatted on a good drive. > > >That suggests teh head follower is out of the groove or >the stepper has been rotated or other wear probems. > >>These drives use a plastic disc with a "spiral" grove stuck to the >>stepper motor shaft to step the head along. I have seen this in Apple II >>drives, it seemed reliable...but I have been told these RS drives were >>not really realiable... > > >SA400 drives were very poor over time for reliability. You would >need an alignment disk to set it up or lot of trial and error assuming >the head moves freely on it guide rails. > >Allison Cant see SA400 anywhere...TEC FB-201 only thing I see... They have "TRS80 Color Computer MIni Disk" in front of case. They are listed by catalog no. on COCO web sites as being the 1st drives put out for the COCO. Problematic but no hints given to fix them... They don't "look" like they have been used a lot. Looks like everything is working as far as the "groove cam" is concerned.... If it was wear and "slack" in the groove or other parts , I think I should be able to have it "track" and do small reads when playing around with the step motor alignement...no? It look almost like nothing is being written or read at all...perhaps a failure in the electronics... Test points are "identified" on the board with abbreviations...I will probe these out "blindly" trying to figure out what's happening if I get no other hints... I am sure there was a service manual for these, RS had a service manual for almost everything they sold back then including stuff like calculators!...I actually bought a lot of about 300 at one point and threw them all out after a few years not using them.... Thanks for the reply Claude

25 years, 10 months

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Need help or service manual for RS COCO mini disk 26-3022...

by claudew＠sprint.ca

Hi These are the 1st floppy disks for the COCO made by RS. The units are TEC FB-201. Large full size mounted on their side in silver case with power supply. When dskinit (format) command issued, they go about 35 tracks then an error is reported on the COCO screen. They can't read a disk formatted on a good drive. I checked speed and tried to ajust alignement by moving head stepper motor, could not read to good disk...no improvement These drives use a plastic disc with a "spiral" grove stuck to the stepper motor shaft to step the head along. I have seen this in Apple II drives, it seemed reliable...but I have been told these RS drives were not really realiable... I have two. I would really like to get them going again...I hate keeping stuff in my vintage computer collection that does not work... Thanks for reading Claude

25 years, 10 months

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RL02 Sanity Check

by jeff.kaneko＠juno.com

Hmm, okay. That means mine's broke then. I powered it up, pack in place, heads retracted. The fan comes on, the "READY" lite comes on, but it doesn't sound like it's spinning up. No "FAULT" lite. I pull the pack (heads still retracted), and turn it on whilst fooling the pack inserted/door closed switch. The spindle turns *very* slowly, and then stops. With the rear cover off, it looks like it does the same thing with the pack inserted, and cover closed. I haven't plugged this thing into a live host interface yet; I'm just trying to see if everything's okay first. I read somewhere that it gets it's spindle motor clock >from the RLV12/11). Jeff On Fri, 13 Oct 2000 10:04:26 -0400 Jerome Fine <jhfine(a)idirect.com> writes: > >Jeffrey l Kaneko wrote: > > > I realize this falls into the category of stupid > > questions, but: > > The RL02 has to be plugged into a *live* RLV12 > > before it will spin-up, right? > > Jerome Fine replies: > > NO! But the RED FAULT light will be ON if the RL02 is > not plugged into the RLV12 (or RLV11) and the CPU is > not powered on. > > Sincerely yours, > > Jerome Fine > ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 10 months

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A LART is needed (was: VCF 4.0)

by fauradon＠mn.mediaone.net

I gues that was not you I had in mind, after all I bought your portfolio which in my opinion was rightly priced for the content. (did you ever find that parallel port?) The seller I was refering to had the biggest booth of all and the most inflated prices I have ever seen. For reference the name started with "Computer" and ended in "Jones", That's the guy who didn't want to sell at the VCF. I don't know where he comes from but I have never ever ever seen a dealer in used "crap" refusing to bargain. And that really pissed me off (here you go Sellam another example of where cussing IS appropriate). That's the dude I hope had to take his load back home. He's a buisness and should know better. If he wants "ebay prices" (TM) for his stuff, he should sell on ebay or out of his store or whaterver hole in the wall he normally operates from. A hobby meeting is for hobbyists where you unload stuff you don't want anymore and sell at a reasonable price so you're not out of pocket. If a business wants to participate, they should undrstand the spirit of the event and be willing to play by the rules. I could go on but I have a meeting to attend My rant Francois >> >Let's see, how would you name a meeting where several buyers went >> >home with new toys at acceptable prices (a TRS 80 M1 with expansion >> >box, printer and all dust covers (!) at USD 30 isn't realy overpriced) >> >and some pricepushing dealer went home with their entire stock ? >> > >> I just Wish I could have seen his face when he was packing his stuff back. >> I hope he swore to never make it back. > >I don't think that my prices were THAT bad! We made a lot of people >happy, got rid of a few boxes of old class handout reprints from Dr. >Dobbs, and found homes for a few items (PCJrs, Portfolio, etc.). At the >end of the day, I sold my entire remaining stock that I had brought down >to a colleague who is starting a collection (OSI, N*'s, Compupro, etc) for >a preset price. He still owes me one more pizza. > > >Sellam puts on a fantastic event (calling it a "great fucking show" could >be miscontrued). I shall return. > >-- >Grumpy Ol' Fred cisin(a)xenosoft.com >

25 years, 10 months

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Intel MDS 225 (1st post)

by b.layer＠vikingelectronics.com

Greetings, I subbed this list because I was given a rather large & heavy old machine which the owner refers to as an "Intel MDS225" and I am totally devoid of any official information about it. It consists of a large, white, main unit, which houses a CRT display, power supply and a bank of slots, several of which are occupied by plug-in cards. The unit also includes a separate keyboard, and a dual 8" floppy drive housed in a cabinet (which is blue in color), and fits underneath the main unit. Also supplied is a set of hardware that I believe is for in-circuit emulation of an i8048 microprocessor. As I understand it, this machine was used to develop firmware for several products which were controlled by 8048 / 8749 micros. The owner also said that it runs (or ran, I have not put power to it) the ISIS operating system. So what have I got here, and to what potentially interesting use might I put it? Was it worth the agony of dragging it home and up the steps? :) Thanks, Bill Layer Sales Technician <b.layer(a)vikingelectronics.com> +----------------------------------+ Viking Electronics, Inc. 1531 Industrial St. Hudson, WI. 54016 - U.S.A 715.386.8861 ext. 210 <http://www.vikingelectronics.com> +----------------------------------+ "Telecom Solutions for the 21st Century"

25 years, 10 months

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Alphastation 255 question..

by ajp166＠bellatlantic.net

From: healyzh(a)aracnet.com <healyzh(a)aracnet.com> > >Beware, I found that it was painful to run Netscape on a Tru64 system with >96MB. Tru64 seems to be even more of a memory pig than OpenVMS. VMS isn't a memory pig. Alpha however was aimed at big apps and isn't as byte efficient as VAX so it tends to consume 2x-4x the ram. The design goal of Alpha was big address space for even bigger apps like gigabyte or even terabyte sized databases. A VAX with 64-128 mb is a big (memory wise) machine. Besides 7.2 runs just fine in the MVII with 9mb! Allison

25 years, 10 months

3
2
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Entertainment Value

by jpl15＠panix.com

Yet-to-be-plundered Jerry Springer Topics: Upright Vintage Computer Collector is secretly an E-Bay Slut and once sold a Royal McBee to the highest bidder: a scrapper from Taiwan. London-based Enthusiast and Under-Employed Physicist admits to converting all his Classics to 110 VAC 60Htz and using a hidden rotary inverter in his basement. Discovered after neighbors complained to police about the incessant humming, and late night cries of "It Lives!!! It Lives!!!" Ex VCF Promoter and Producer gives up profitable consulting business, salty wit and caustic repartee, to take up new carreer as a Sunday School Teacher and Spiritual Counsellor in the Great Midwest. You *GO*, girlfr'en! -------------------------------------------------------------------- Cheers John

25 years, 10 months

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IBM Series/1 Minicomputer

by Mzthompson＠aol.com

Owen Robertson <univac2(a)earthlink.net> wrote: > Shipping for the hard disk will be hundreds, so I won't be getting it. To which Sellam Ismail <foo(a)siconic.com> replied: > Have you considered driving to go pick it up? Have you considered having > another list member retrieve the hard drive? Sellam, that needs to be list members. I walked away from several of them a while back. Stuck on the front of the drive assembly is a sticker that says to the effect "Caution: Unit weighs 156 pounds". Heavy metal, ey? Mike

25 years, 10 months

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DSSI: What was it like?

by Mzthompson＠aol.com

Bruce Lane <kyrrin(a)bluefeathertech.com> wrote: > For that matter, what the heck did DSSI abbreviate? My guess: > Distributed Storage Subsystem Interface. To which Chuck McManis <cmcmanis(a)mcmanis.com> replied: > As for the abbreviation DSSI I've heard two different expansions used: > "Digital Standard Storage Interconnect" > "Digital Standard System Interconnect" > I've yet to find something that pins it down definitively. DEC lists in the manuals for both the DECsystem 5400 and the DECsystem 5500 as: "Digital Storage System Interconnect" and states: The DSSI bus has the following characteristics: A 4-Mbytes-per-second bandwidth Up to eight nodes Eight data lines One Parity line Eight control lines And gleened from somewhere a long time ago: One person wrote: :DSSI was developed from early SCSI definitions in an attempt to make :it robust, reliable and versatile (e.g. dual host option was defined :from the very beginning, while many of today's SCSI controllers still :can cope with only a single host adapter per bus). :The additional features made it more expensive then SCSI, and the :industry decided to go with the cheaper solution. Another person wrote: :> Are the two inter-changeable??? (SCSI vs DSSI) :No. It's interesting, though, that there were vendors whose storage :controllers had host ports that were software configurable as either :DSSI or SCSI. I never got close enough to one of these to find out :if they used the same signal wiring, though [most likely not - it is :conceivable that logic levels were compatible enough that one could :use the same line drivers and receivers, but they would still have had :to have a way to choose connectors that matched the interface type]. FWIW Mike

25 years, 10 months

1
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Microvax II

by ajp166＠bellatlantic.net

From: Jerome Fine <jhfine(a)idirect.com> >Actually, since I am not a VAX/VMS person, I was thinking more along >the lines of a PDP-11 and RT-11. But since I know that a Qbus host >adapter such as a CMD 220/M (CMD) and a SQ706A (Dialog) both >function for either PDP-11 CPUs or uVAX II CPUs on any OS which >uses the MSCP interface, I guess that I am too out of touch with the >problems of what an IDE Qbus controller might have difficulty with. The key is MSCP is not a trivial protocal and the underlying hardware to do that requires muscle in the form of a fast cpu. IDE is fairly stupid and easy to interface as PIO, DMA would not be that bad for vax or PDP11 but you would pay for it by needing drivers as there are none. >And in particular, I was sort of referring to using an IDE Qbus controller >with John Wilson's adaptation of the Russian HD(X).SYS that he has >so conveniently made available in E11. There has been some discussion >about producing an IDE/SCSI version of a Qbus controller which would >be able to be a REAL Qbus PDP-11 controller with an RT-11 software >device driver identical in code to the HD(X).SYS used with the E11 I think I was part of that discussion too. RT-11 and the overlay TSX-11 are easy compared to something like VMS. Unix sources permitting would be doable. >Anyone out there who wants to try? I would be very pleased to >swap some of my time for a couple of SCSI 32 GByte hard drives >to test out the software. The only problem is that the only SCSI >host adapters I have are the 50 pin type (CQD 220/M), so there I've run my PDP11 with SCSI CQD already as it's MSCP, Same for VAX/VMS (it's in my MVII). It's limited to 4 or 8gb and SCSI-II so forget the reall monster drives. >might be a problem if there are no drives larger than 8 Gbytes which >have the old SCSI-2 50 pin interface. On the other hand, if Its pretty easy to fine drives inthe 2-9gb range still and they are cheap. The idea of such huge drive with RT11 and friends is that is wasted. I use D540s (31mb) and swap them like carts as I have a bunch of em and they are plenty big enough. Drives in the 120-400MB range are plentyful for me, one 200mb drive would take all the binaries and sources I have with room to spare that aren't already on Tims CD. Whats the point? The value of IDE on Qbus is cheap easy to find drives in the sub (at the time) 1gb class. Allison

25 years, 10 months

2
1
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Changing logicals on VMS?

by cmcmanis＠mcmanis.com

Hi Paul, This isn't an allocation class issue. Its something I brought on myself, and for that am paying the price :-). My true question is whether or not I'm going to be stuck re-installing VMS, however given the way VMS works I'm sure there is some voodoo to fix it. I got in this mess as follows: I installed an RF72 drive into my 4000/200 and proceeded to do a 'sho dev' on it. It showed up on the DSSI bus as $24$DIA264: I then installed VMS 7.2 on to this drive, followed by a bunch of layered products. Then I read in the KA660 technical manual how to "talk" to the DSSI drives, (which is very arcane using the KFQSA but a snap on the KA640 and KA660) and proceeded to tell the drive to call itself node SYSTEM and unit 0. This worked fine, and I noted that I could now boot the system by specifying DIA0: rather than DIA264: (which I never could remember anyway). Then I went to install another layered product. That installation failed because it couldn't find a file is was expecting in SYS$SYSDEVICE:[SY0.SYSTEMP] (or something very similar). So I did a dir SYS$SYSDEVICE: and sure enough there was nothing there, then I did a SHOW LOGICALS and from there discovered that SYS$SYSDEVICE: was defined to be $24$DIA264: (the original name of the DSSI drive) Now I could name it back again. But I'd rather tell VMS where the SYSDEVICE now sits (for all the system, like on a permanent basis). If I 'define' it, it changes for the current process but doesn't change universally and more importantly other things are stuck that way to. Nothing is SYSTARTUP_VMS.COM defines these so they must be in a parameter database somewhere else. That is where I'm looking now ... On a somewhat related note, I went out and forked over $100 for a true 5 port switch so that I can put my VLC cluster on a switch! Now all I need is a console multiplexor. --Chuck At 08:35 PM 10/2/00 -0500, you wrote: >The system$dia0 isn't especially newer or better. It is the name of the >disk with the allocation class set to 0. Check your drive firmware to >make sure that the alloclass on that disk didn't get changed to 24 wen you >changed the node name. > >There is also a MSCP_ALLOCLASS parameter in SYSGEN but that is less likely >to be the culprit. > >The allocation class is a mechanism to prevent like-named devices (i.e. >machines on a CI or DSSI each with a DxAxxx device) from confusing one >another. > > On Mon, 2 Oct 2000, Chuck McManis wrote: > > > I know, I should ask info-vax. But I'm not subscribed there :-( > > > > I changed the nodename on my DSSI drive (looks like an HSC50 to the VAX) > > and it still boots VMS but SYS$SYSDEVICE is set to $24$DIA264 not the > > newer, more friendly SYSTEM$DIA0: I tried doing an autogen but that didn't > > seem to change anything :-). Clues? > > > > --Chuck > > >

25 years, 10 months

9
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Intel 310 286 box

by dhquebbeman＠theestopinalgroup.com

> We still have about 4 of these 310's in operation here which we are in the > process of retiring. But, unlike Pats, ours run the iRMX OS. There wasan active > user group for these (iRUG ?) but don't know if its still a functioning > group. Always wanted an iRMX-based system... Do these 310s have their retirement mapped out already? regards, -dq

25 years, 10 months

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Who collects (reads the mailing list...?) vintage computers in Quebec, Canada?

by ajp166＠bellatlantic.net

From: Claude <claudew(a)sprint.ca> >I have yet to find anybody to trade or talk collecting face-to-face >anywhere around here even if I have posted on several montreal >newsgroups that I am looking to buy/trade this kinda stuff... I find that rather unusual. In the 80s I used to call on companies in Montreal and there were a lot of them in the small computer market. More than likely there are other collectors and your entering late on the scene. Computers are tough to find here (not like california...) I have managed >to accumulate/fix/restore approx 50 micros (all working) from the >197x-198x early 1990's...lotta books, software and peripherals... 1980x oh you mean recent stuff. ;) I have a handful of machines I really like to use from the 70's. Just got some core for my PDP-8/F that should be old enough. >Those who feel sad for me can send me their Lisa's, TRS model IIIs and >Next boxes ;-> No intrest in those. Allison

25 years, 10 months

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Need help or service manual for RS COCO mini disk 26-3022...

by ajp166＠bellatlantic.net

From: Claude <claudew(a)sprint.ca> >These are the 1st floppy disks for the COCO made by RS. The units are >TEC FB-201. > >Large full size mounted on their side in silver case with power supply. > >When dskinit (format) command issued, they go about 35 tracks then an >error is reported on the COCO screen. You sure it isn't the first drives for the TRS-80? The symptom would be the older SA400 drives designed for 35 track operation used within. The later drives were SA400Ls that were designed for 40 track operation. Both used the spiral groove cam but one was a bit different. Open up the box and see which you have. The other possibility is old (really old) media ment for the 35 track drives and this media has a smaller "window" in the jacket that will limit head travel. >They can't read a disk formatted on a good drive. That suggests teh head follower is out of the groove or the stepper has been rotated or other wear probems. >These drives use a plastic disc with a "spiral" grove stuck to the >stepper motor shaft to step the head along. I have seen this in Apple II >drives, it seemed reliable...but I have been told these RS drives were >not really realiable... SA400 drives were very poor over time for reliability. You would need an alignment disk to set it up or lot of trial and error assuming the head moves freely on it guide rails. Allison

25 years, 10 months

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PDP-8 question...

by ajp166＠bellatlantic.net

>> nothing in it) and a set of three posts one dip above it. If you >> could tell me what you have there it would help. > >Will do. The 8/e is on my desk at work, so I'll email the info on monday, >if I forget, then remind me. Thanks. I plan to power it up as is along to see where it sits. I was told it was likely good but untested. Certainly looks good though it has been repaired at one time. Allison

25 years, 10 months

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ebay bid lists

by cmcmanis＠mcmanis.com

Has anyone else noticed that last night Ebay changed the way they display bids to include _all_ bids, even repeats by the same person. Interesting bit of information that is. And to bring it on topic, there is a VAX 4000/VLC* (nothing special) that is up to $170! That's pretty amazing, and to think I sold one at the VCF for $40 :-) --Chuck * Ebay item #461408005

25 years, 10 months

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Speaking of cubes

by ajp166＠bellatlantic.net

From: Neil Cherry <ncherry(a)home.net> >I blame Microsoft. :-) Only partly. the public that buys this as the "best" is part fo the problem. For example, I do run a P166 w/64mb and NT4workstation and love it but the only MS apps are IE4.01/sp2 and outlook express. Everything else is NON MS, makes the system fast and solid. When I find a good replacement for OutlookExpress that will with IE go to the trashbin. In the end I had to do a very careful install to leave out junk. I'm finding Linux is going that way to. Why?? People want it! >mail program part of the Browser? The recent Mozilla release (18) looks >wonderful but cause Linux to swap like mad on a 64M box. I like Linux That is disgusting. >would not believe how idle a 386SX/16MHz is running all my HA software >and a few other things). I have two 286 boxen at work controlling ovens and testing parts. My 386/16s I use one is a digital logic analyser (has a board in it) and te other is a GP use box that is about the size of a small brick with VGA or MDA(RS170 output). The latter runs fairly nice off the kluge LVSMPS I created so it can use a 12V battery. Try NewDeal Software on DOS with a 386/16, windows GUI and all plus fast to boot and fits in some 10mb. They even have a decent browser and email. >We've thrown away being efficient for time to market and now we're starting Yep, it's the visual++ languages and all. I ran into someone that wanted Visual C++ for 8051... get real! >to see the environmental effect. Can anyone really see the need for a 233MHz >sprinkler controller? Also The PC based controls market still sells 486 based PC104, it's plenty enough. Allison

25 years, 10 months

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True colors

by kyrrin＠bluefeathertech.com

This one is truly in the "For what it's worth" department. Following the recent flamewar between Mr. Ismail and R.D. Davis, I forwarded a (supposedly private) note with my concerns about it to the DNS provider for the domain siconic.com (psyber.com). I did this because many ISP's have explicit prohibitions in their terms of service against exactly the kind of crap that was going down. Apparently, the tech person for psyber and Mr. Ismail are on pretty good terms. I got the attached blurb this evening. If anyone on the list had any doubts as to what appears to be Mr. Ismail's true nature, I suspect they will now be removed. Yes, I've filter-filed the entire 'siconic.com' domain out of my system. I'm completely fed up with the temper tantrums of its owner. Attachment follows. In the interests of keeping the list on-topic, there will be no further posts from me on this subject. -=-=- <snip> -=-=- >Delivered-To: kyrrin(a)mail-sttl.uswest.net >Delivered-To: alias-bluefeathertech.com-kyrrin(a)bluefeathertech.com >Date: Thu, 12 Oct 2000 22:49:04 -0700 >From: "Sellam Ismail" <dastar(a)siconic.com> >To: "Bruce Lane" <kyrrin(a)bluefeathertech.com> >Subject: Re: Terms of Service query >Reply-to: dastar(a)siconic.com >Priority: normal >X-mailer: Pegasus Mail for Win32 (v3.12c) > >Bruce, > >You, too, are an ass. > >Mind your own business and leave my ex-ISP folks alone. They have >better things to worry about other than your inane and childish whining. > >On 11 Oct 2000, at 22:53, Bruce Lane wrote: > >> Hi, Ted, >> >> The owner of a domain you host (siconic.com/Sellam Ismail) has, in the >> past 24 or so hours, been getting very abusive in both language and tone to >> one of the users of a mailing list I'm a member of. The only thing the >> other user did was to venture an opinion which Mr. Ismail apparently (and >> violently) disagreed with. >> >> The other listmember, one R.D. Davis, has been utterly polite, and calm of >> tone, despite suggestions by Mr. Ismail to, among other things "shut the >> fuck up." I saw absolutely no reason why Mr. Davis's opinion should warrant >> such a violent temper tantrum on Mr. Ismail's part. >> >> Now, being an experienced SysAdmin and domain owner myself, I would >> ordninarily ignore this little bit of childish ranting and move on. >> However, Mr. Ismail has not been particularly polite to me on other >> occasions, so I'm beginning to wonder if this is a pattern with him: >> Specifically, insulting the crap out of anyone that disagrees with him. >> >> My question: Many ISPs have, in their Terms of Service, prohibitions >> against violent flaming. Is psyber.com one of them? If so, would you like >> me to send you copies of the mailing list postings in question? Perhaps so >> you can have some basis to remind Mr. Ismail that he's not the only one on >> the Internet? ;-) >> >> If not, just say so and I'll let it go. Thanks in advance. >> >> >> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- >> Bruce Lane, Owner and head honcho, Blue Feather Technologies >> http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com >> Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) >> "I'll get a life when someone demonstrates to me that it would be >> superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma). > > > >Sellam International Man of Intrigue and Danger >--------------------------------------------------------------------------- ---- >Looking for a six in a pile of nines... > > Coming soon: VCF 4.0! > VCF East: Planning in Progress > See http://www.vintage.org for details! > > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) "I'll get a life when someone demonstrates to me that it would be superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma).

25 years, 10 months

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IBM Series/1 Minicomputer

by univac2＠earthlink.net

Someone is offering me an IBM Series/1 minicomputer with all manuals, an 8" diskette drive, and a CDC Hard disk, for $100 plus shipping. Shipping for the processor will be about $25, and between $50 and $75 for the diskette drive. Shipping for the hard disk will be hundreds, so I won't be getting it. I have three questions: 1. What can y'all tell me about everything? I know almost nothing about it. 2. Is it worth getting the processor, manuals, and diskette drive,? It comes with some disks, but I don't know what's on them. 3. Does anyone have an operating system for it? Thanks, Owen

25 years, 10 months

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Intel MDS 225 (1st post)

by ajp166＠bellatlantic.net

From: Joe <rigdonj(a)intellistar.net> > That should be EASY to do by using the ROM monitor. You shouldn't even >need OS software to do it. The monitor command R0 reads from the paper tape >port. I imagine that you could use another device to input data there >instead of the PT reader. You could then use the monitor commands to write I did it that way for my first V2.2 port, used punch out to push it into my box. The "catch" code was 30 or so bytes. The source system was MDS-230. The box I'd used for target was a Multibus design using a set of cards I still have and a BLC80/10 with the memory map modded. Allison

25 years, 10 months

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DSSI: What was it like?

by ajp166＠bellatlantic.net

>One of the more interesting aspects of this bus is that every "target" is >an independent entity (its more like an 8 bit parallel network than an I/O >bus). Thus disks have their own controller running their own OS etc and you IE smaller version of the HSC and friends with potential for faster bus as well. >All in all I think it is superior to SCSI in many ways but because DEC held >on to it so tightly it was never adopted beyond DEC machines. > >As for the abbreviation DSSI I've heard two different expansions used: > "Digital Standard Storage Interconnect" > "Digital Standard System Interconnect" >I've yet to find something that pins it down definitively. DIGITAL Storage System Interconnect, The only use of "standard" within the DEC lexicon is limited to "DEC Standards" refering to the 200+ documented engineering standard for things like how to pack and label a box, what a terminal is and must do to what a VAX is and how it should work. Allison

25 years, 10 months

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Intel MDS 225 (1st post)

by ajp166＠bellatlantic.net

-----Original Message----- >> I was hoping that I could get some useful OS running, CPM would be great; I >> have several CPM machines already, so it's not totally foreign to me. Would >> I need a different CPU card, or other hardware to run CP/M? For that The bios would have to know how to handle the disk as it does single denisty and a M^2FM double density that is unique to Intel boxen. The single density mode will however run standard CPM (BIOS is in the alteration guide) and usually on standard distrubtion 8" SSSD. >code should work on your machine, as I recall. The main issue >is that you'll most likely have to transfer things through a >serial port to the MDS. It's a pain but it can be done. You can use ISIS to help or hand push it some of it. Allison

25 years, 10 months

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DSSI: What was it like?

by kyrrin＠bluefeathertech.com

DEC's proprietary DSSI interface: Can anyone give me some idea of why DEC came up with it, what benefits it offered over, say, SCSI, and whether it was entirely proprietary or related to something like IPI? For that matter, what the heck did DSSI abbreviate? My guess: Distributed Storage Subsystem Interface. Web sites, FAQs, or commentary are all welcome as this is pure curiousity on my part. Thanks much. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) "I'll get a life when someone demonstrates to me that it would be superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma).

25 years, 10 months

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PDP-8 question...

by ajp166＠bellatlantic.net

I just got a DATARAM DR118A core (16kx12) for Omnibus PDP-8s and one thing I really need to know. How or where is the jumpers for the addressing? Allison

25 years, 10 months

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Microvax II

by ajp166＠bellatlantic.net

From: Jerome Fine <jhfine(a)idirect.com> >I doubt very much that the answer is YES! Otherwise, it would have been >easy to produce the 3rd party SCSI host adapters and there would have >been a lot more competition - even with the $ US 100 license fee. the key is not to design a VMS driver so MSCP makes you immune to that. If your willing then a bare SCSI interface is very doable, but the driver will be harder and slower even with DMA. In VAX products there was competition around storage perfomance even back then. >Now I have heard of someone attempting to produce a Qbus controller >for an IDE drive that would not even be MSCP - and probably put the >IDE drive right on the controller - not that MSCP would be all that There is a design out there, crude and PIO only. It would certainly work as IDE can PIO pretty fast. the only thing that makes Q-bus the least bit hard is that it has a read before write, that can mess up some register o riented devices with an out of sequence read. Allison

25 years, 10 months

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DSSI: What was it like?

by ajp166＠bellatlantic.net

From: Bruce Lane <kyrrin(a)bluefeathertech.com> > DEC's proprietary DSSI interface: Can anyone give me some idea of why DEC >came up with it, what benefits it offered over, say, SCSI, and whether it >was entirely proprietary or related to something like IPI? At the time it was developed SCSI was maybe SCSI-1 or II and way short on perfomance, limited in number of possible connected devices and short on cable length. DSSI like many of the DEC storage interconnect was trying to address problems like cable length (wanted longer), rate of transmission(faster) and cluster interconnect. It's also a protocal and within that it addresses best ways to move data faster and route it. > For that matter, what the heck did DSSI abbreviate? My guess: Distributed >Storage Subsystem Interface. Yes. Allison

25 years, 10 months

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Mac Plus or Mac Classic?

by spectre＠stockholm.ptloma.edu

Still looking for a real 68000 Mac to play ZeroGravity on (68010 would probably work too but let's stick to what I know :-) Anyone getting rid of a Mac Plus or original Mac Classic, or maybe even a 128K Mac? ;-) Seriously, please reply off-list if you have one you're willing to sell. -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- A good pun is its own reword. ----------------------------------------------

25 years, 10 months

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Intel MDS 225 and Intel 310 info

by Innfogra＠aol.com

I, too, have one of these kicking around. Mine has a bad Ball Monitor inside. I believe the MDS 225 is the Development System III mentioned in Joe's documents in an earlier post. I used to play with these about 9 years ago when we bought truckloads from Intel. If you have questions contact me off list. Most info has been covered on the other posts. I think it is worth collecting. There are not many in the hands of hobbyists and collectors. I used to have CPM for this system but I am not sure I still do. If I find it I will let the list know. I bet InBus Engineering still has cards and parts for these systems, if not docs and SW. I know I sold them thousands of dollars worth of parts, especially for the 310 systems many years ago. I still have some 310 multibus systems & parts. Their contact info is : compumart(a)inbus.com 925-454-2561 voice 925-454-2501 fax InBus Engineering, 6233 Industrial Way Livermore, CA 94550 Unfortunately they realize they have almost the sole supply for these old systems and their prices used to reflect that. I haven't talked with them in years but they still advertise in Compu-Mart and the Processor. Paxton Portland, OR

25 years, 10 months

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Speaking of cubes

by fauradon＠mn.mediaone.net

Hi, This may be off topic but I just have to brag I just received my cobalt cube today whoo hoo. Its is not 10 years old yet but has just been made obsolete by SUN who bought Cobalt a couple of weeks ago. It's brand new never openned in the original box. I just can't wait to setup my server. But I have to for now though. That's it Thank you for reading, you may return to your normal occupation now. Francois

25 years, 10 months

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IBM System 34

by vcf＠siconic.com

Please reply to the original sender. Reply-To: CDyson(a)jones-blythe.com ---------- Forwarded message ---------- Date: Fri, 13 Oct 2000 10:23:02 -0500 From: Carol Dyson <CDyson(a)jones-blythe.com> Subject: IBM System 34 We are going to dispose of several terminals as well as System 34 - we also have books from the initial installation, the system itself, plus CMAS software. Would someone in the Illinois area be interested? I am merely investigating this possibility as a way of not adding to our landfill and not destroying something that a collector might be interested in. The System 34 is still installed and not quit ready for disposal, but terminals are. Is this old enough to be of interest? Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

25 years, 10 months

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Microvax II

by ajp166＠bellatlantic.net

From: Neil Cherry <ncherry(a)home.net> >BTW is it easy to design boards for the Microvax. This Analog board seems >really simple. Designing an intelligent SCSI board wouldn't be a lot more >difficult (I didn't say anything about the Vax driver). MVII is a Q-bus machine and like it's compatable Q-bus PDP-11s that went before and during its a reasonably easy bus to interface to and DEC did a fair job of makeing the documentation for it easy to get. Designing a PIO SCSI card would be easy, DMA a bit harder but there is no secrets there either. Programming is another thing though as the Q-bus is an annex of the processor address space and DMA between memory (on private(PMI) bus) and QBUS devices is more complex programming. However RQDX (disks), DEQNA/DELQA (NIC) do the dma trick so that is already known. Allison

25 years, 10 months

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48v dc power and then 110v in car

by fauradon＠mn.mediaone.net

>Now parent of 3 partially grown kids, two in high school. >Mike Cool: Bonzai kids... >mmcfadden(a)cmh.edu

25 years, 10 months

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: Re: 48v dc power and then 110v in car

by mmcfadden＠cmh.edu

110VAC in Automobile About 6 years I found that Radio Shack has a plug in the cigarette lighter converter to 110v. We were able to power a small color TV and Toshiba VCR for a 4000 mile in 3 weeks vacation with 3 small kids. The converter is fused and sells for about $60. The van was also dragging a small 2 wheel trailer. You could feel the engine labor sometimes in the mountains. I took ear plugs, disney movie music rots your brain. My wife still uses the converter to recharge her cell phone in the car. Now parent of 3 partially grown kids, two in high school. Mike mmcfadden(a)cmh.edu

25 years, 10 months

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RL02 Sanity Check

by jeff.kaneko＠juno.com

I realize this falls into the category of stupid questions, but: The RL02 has to be plugged into a *live* RLV12 before it will spin-up, right? Jeff ________________________________________________________________ YOU'RE PAYING TOO MUCH FOR THE INTERNET! Juno now offers FREE Internet Access! Try it today - there's no risk! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 10 months

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A LART is needed (was: VCF 4.0)

by fauradon＠mn.mediaone.net

>Let's see, how would you name a meeting where several buyers went >home with new toys at acceptable prices (a TRS 80 M1 with expansion >box, printer and all dust covers (!) at USD 30 isn't realy overpriced) >and some pricepushing dealer went home with their entire stock ? > I just Wish I could have seen his face when he was packing his stuff back. I hope he swore to never make it back. Francois

25 years, 10 months

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NEC APC available

by SUPRDAVE＠aol.com

In a message dated 10/13/00 2:25:24 AM Eastern Daylight Time, foo(a)siconic.com writes: > On Thu, 12 Oct 2000, John Foust wrote: > > > Personally, I'm in a throw-away mood as opposed to a > > collection mood. I tossed 3" x 3" x 25" of old clone > > 8088 through 486 PCs and cases away last Tuesday. > > > > I coalesced a box of Pentium 50-166 Mhz era motherboards, > > some brand-new, and for heaven's sake, they would barely > > fetch a few bucks on eBay. My other mantra was a friend's > > rule that if you can't sell it on eBay, throw it out. > > ACK! > > As much as I hate having seemingly useless crap like this, I still refuse > to throw it out. It's useful to SOMEONE. > > What I'm recommending to people who have older PCs these days is to donate > them to your local community college electronics or engineering > departments. I'm sure the students can use them for either spare parts or > as controllers for whatever projects they're working on. > > Pentiums are still useful to schools and other organizations that take PCs > and refurbish them to donate to schools. Try to find places like this > where you live. > > If you still don't want to do even these simple things, in the very least > donate your crap to Goodwill. Maybe someone will come across it and find > it useful. In the very least you can take a tax writeoff. > > Sellam everyone might want to check out this site: www.freeboxen.com I just claimed a 286 card for one of my old macs and looks to be a good place to get rid of some of my extra PS/2 stuff. DB Young ICQ: 29427634 hurry, hurry, step right up! see the computers you used as a kid! http://www.nothingtodo.org

25 years, 10 months

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NEC APC available

by ajp166＠bellatlantic.net

>>8088 through 486 PCs and cases away last Tuesday. >>I coalesced a box of Pentium 50-166 Mhz era motherboards, >>some brand-new, and for heaven's sake, they would barely >>fetch a few bucks on eBay. > >Goodness. I love 486's. I make them into very handy Linux boxen. They >and those motherboards are worth shipping to ME at least. Same here. Of 7 PCs I have 2 are 386/16s and only one a P166 the rest are various 486DX/33-->133s. The 486s run NT4/sp4 workstation better than W95! However for fast, Minix is hard to beat(it's very small). Linux as in RH5.2 is good on them but Caldara Openlinux2.3 is a bit too fat for them. Allison

25 years, 10 months

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Alphastation 255 question..

by ajp166＠bellatlantic.net

>> VMS isn't a memory pig. Alpha however was aimed at big apps and isn't >> as byte efficient as VAX so it tends to consume 2x-4x the ram. The >I think you know what I mean :^) The system in question is an Alpha, and on See the comment I left in? Yes, I do know what you mean. >Alpha's OpenVMS is a memory pig! A quick (SHO CLUS) shows that my 24MB >VAXstation 4000/VLC is sitting at 60% memory usage, the AlphaStation 500/333 >with 96MB that doesn't have DECwindows loaded on the system is sitting at >69%, unfortunatly I don't have either of the workstations with 112MB up at >the moment as but running DECwindows I believe they'll be at about 80%, >IIRC. Of course my main system is only at 20% :^) An Alpha with 96mb is running faster than the VAX however with 24mb so you get what you pay for. However in the time frame when they were both current that Alpha would likely have had 128mb minimum and likely more and the vax would have been big at 32mb. It's the difference between the byte oriented VAX and the Word orieneted Alpha. >I understand why OpenVMS on an Alpha uses so much memory as opposed to on a >VAX, however, the fact remains, it's a memory hog, and like I said based on >my very limited Tru64 experience it seems even worse on the exact same >hardware. Actually any os on Alpha will be bigger by 4x, it's the instruction granularity mostly and also the Alpha is actally less CISC than VAX. The payback is the 64bit addressing and math. Allison

25 years, 10 months

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Intel 310 286 box

by ip500＠home.com

Is any one privy to the workings of an the Intel 310? The one I have is missing a monitor and keyboard and hookup is not immediatly obvious to me. Also has labeled ports on the back for ethernet, console, cube. I'm assuming it was the control box for my newly acquired iPSC/1 system. This one is a model "PSYP310", 286/12 8 mhz, 1 meg mem, 140 mb, 45 mb streaming tape & a floppy drive. Any info appreciated...manual or copy greatly! appreciated.... Craig

25 years, 10 months

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VMS/VAX/Alpha questions...

by ajp166＠bellatlantic.net

From: healyzh(a)aracnet.com <healyzh(a)aracnet.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Thursday, October 12, 2000 6:20 PM Subject: Re: VMS/VAX/Alpha questions... >Currently the *only* non-DEC drive in my cluster (except those that came in >storageworks cannisters) is in a VAXstation 4000/VLC, and I've got major >problems with it at the moment as a bunch of the files have bad blocks :^( I've run a great mix of nonDEC SCSI drives on the 3100s I have and the CMD interfaced MVII. For MFM I've tried everything I have most are smaller than RD53s though but they worked. >> Does DEC say: "You'll run that RZ25 & *Be Happy About It*", or can I run >> non-DEC rommed hard drives just fine? >> >> RZ or not RZ, *that* is the question. ;-) > >The answer, is hopelessly vague. It depends. It might work, it might not >work. OpenVMS and the hardware are only tested with specific drives, as a >result the drives may or may not work. The good news is that OpenVMS V7.2 >is a lot less touchy about this than say VAX/VMS V5.5. Depends what you have and what interfaces, usually it works fine. >So, you see the correct answer is, try it and find out. Which unfortunatly best answer. >isn't the one you want trust me I understand as I've looked into upgrading >my server to a U2W SCSI controller and Ultra160 drives. As a hobbyist I'm >not sure I want to risk buying drives that might not work. Finding a U2Wscsi for a nonPCI VAX or ALPHA would be real tough. Though Qantum fireball (scsi-II) at 5.1gb worked fine when I tried it as a non boot disk on the M76 running VMS7.2. I tried it for laughs as I was pulled from the server (p133!). Allison

25 years, 10 months

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VMS/VAX/Alpha questions...

by ajp166＠bellatlantic.net

From: Roger Merchberger <zmerch(a)30below.com> >I do know about the VAXstation boot drive limitations of 1Gig... For the >price, I like the 1Giggers better, but they won't do me crap if the VAX >won't recognize 'em... ;-) First research that as it only affects certain boxen and only for VMS crash dumps. >(I've got a few DEC drives laying around, so I've not tried any non-DEC >drives in my VAXen yet...) Try them anyway. They will work most likely. Besides a 1gb drive is lots of space as VMS isn't a pig like NT or Win2k. Allison

25 years, 10 months

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48v dc power

by ajp166＠bellatlantic.net

From: Fred Cisin (XenoSoft) <cisin(a)xenosoft.com> >CLOSE. But, ... Remove the diodes completely from an alternator. Select >pulleys for correct ratio, and simply maintain a steady engine speed to >provide 3600 RPM at the alternator shaft. Now you have 60Hz 3 phase >power. Adjust the voltage, and run minis and mainframes. >You'll need to drive where there is little traffic to maintain that >constant engine speed. leave the diodes in and don't use them, bring out the power on leads >from the other side of the diodes for AC. the rectified power can then be used for reedback regulation of the AC. did this years ago for a ~1kw tube TX worked very well. it was cheaper than buying a HV alternator (120/230v). the auto system if well maintained can do just fine power wise. resonable power is around 3-500W at the high side. Allison

25 years, 10 months

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Commodore 1571 drive (and C128 CP/M)

by ard＠p850ug1.demon.co.uk

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25 years, 10 months

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Floppy drive spindle screws

by ard＠p850ug1.demon.co.uk

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25 years, 10 months

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Compaq Deskpro 286

by tarsi＠binhost.com

At 06:11 PM 10/11/00 -0400, you wrote: > > Looking for information about a Compaq Deskpro 286. I have two of > > them. Would like to know some specs, how to get into the BIOS, etc. > >When painted gray (any shade you choose), they make an excellent >anchor for the bass boat, although the bass (and EPA) may disagree... I'm surprised I didn't get a hernia carrying that thing home from Goodwill. Although you just HAVE to love the rubber-mounted harddrive chassis to reduce vibrations. That's classic. :) Tarsi 210

25 years, 10 months

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Another PDP-11 available: Wisconsin

by ajp166＠bellatlantic.net

>it would work - in hindsight, I don't know why since I never >had any intention of getting by with just RT11FB in RT-11. >Actually, I have both versions - dual and quad. Same here with matching memory and IO. I can do everything 11/03 to first 11/73 and most version inbetween and a fair number of backkplanes for them including the heath H11. I happen to like RT11FB alot. >I do, just my own opinion - which I believe I stated at the beginning. >The key point is that when testing software, the emulator is so >much faster that it runs rings around the real hardware. PLUS - It can but... Try doing a hardware hack using a DRV11 card with a static ram hooked to it as a ram disk. You can emulate up to a point and then it stops. >and this is a VERY BIG PLUS - I had occasion to attempt >to debug (or at least understand) the boot code for a stand alone >program. Try stepping through the boot block of an RX02 on >a real PDP-11. With the emulator and even rudimentary I've done it, ODT. Emulators help some here, then again if the boot block is on a real RX02 (in DD mode) or an RL02. Your cooked again and must have real hardware. >In fact, I very much admire someone who can rescue an 11/44 >from the scrap heap. But I do not know how and I am too busy >in any case. And my back is no longer strong enough. Me too. I stick to the Qbus as they are quiet, small and low power. However to make a point... there is nothing like seeing and hearing Unix V7 booting on a real RL02. It's satisfying as I've preserved hardware and demonstrated software that was "of the time" and still useful. Allison

25 years, 10 months

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mac serial pinouts

by mtapley＠swri.edu

Larry Walker wrote: > I've also got a NEXT which IIRC uses RS423 prot. but has a >similiar miniDIN. These guys really keep the cable manufacturers >busy. Again the specs are hard to find. Is there such a thing as a >repositry of cable connection specs ? Ooooh ooooh! I can help! A quick cut, paste, ftp, and addition of a little ascii art later, here, almost straight from the on-line copy of the System Admin's manual on my NeXT running NeXTStep 3.3 are: NeXT Computer Serial Ports Serial ports A and B use 8-pin miniature DIN (MiniDIN-8) connectors. Both ports on a 68040-based NeXT computer are RS-423 compatible; the ports on a 68030-based NeXT computer are RS-422 compatible (though different). The following diagram and table describe the pin configuration of each port: 8 7 6 5 4 3 2 1 (ed. drawing makes each location look like a socket, not a pin, as would be found on the back side of the computer. That matches my '040 Cube.) Pin Signal Pin Signal 1 DTR 5 RXD 2 DCD 6 RTS 3 TXD 7 RTXC 4 GND 8 CTS NeXT-to-Modem Cable (MiniDIN-8 to DB-25) The following table describes the configuration of a cable used to connect a 68040-based NeXT computer to an asynchronous modem. This configuration supports RTS/CTS hardware flow control. MiniDIN-8 DB-25 Pin Signal Pin Signal 1 DTR 20 DTR 2 DCD 8 DCD 3 TXD 2 TXD 4 GND 7 GND 5 RXD 3 RXD 6 RTS 4 RTS 7 (Not connected) 8 CTS 5 CTS NeXT Null-Modem Cable (MiniDIN-8 to DB-25) The following table describes the configuration of a null-modem style cable used to connect a terminal, printer, or other computer to a NeXT computer. This configuration supports RTS/CTS hardware flow control. MiniDIN-8 RS-232 Pin Signal Pin Signal 1 DTR 8 DCD 2 DCD 20 DTR 3 TXD 3 RXD 4 GND 7 GND 5 RXD 2 TXD 6 RTS 5 CTS 7 (Not connected) 8 CTS 4 RTS NeXT Null-Modem Cable (MiniDIN-8 to MiniDIN-8) The following table describes the configuration of a null-modem style cable used to connect two 68040-based NeXT computers. This configuration supports RTS/CTS hardware flow control. MiniDIN-8 MiniDIN-8 Pin Signal Pin Signal 1 DTR 2 DCD 2 DCD 1 DTR 3 TXD 5 RXD 4 GND 4 GND 5 RXD 3 TXD 6 RTS 8 CTS 7 (Not connected) 8 CTS 6 RTS NeXT Null-Modem Cable (DTR Flow Control) The following table describes the configuration of a null-modem cable used to connect a NeXT computer to a printer that only supports DTR hardware flow control, rather than RTS/CTS hardware flow control. MiniDIN-8 RS-232 Pin Signal Pin Signal 1 DTR 8 DCD 2 DCD 5 CTS 3 TXD 3 RXD 4 GND 7 GND 5 RXD 2 TXD 6 RTS 20 DTR 7 (Not connected) 8 CTS 4 RTS Heck of a time to ask, but NeXTs are on-topic now right? Right? I hope? The copyright on the back of my box says (c)1989. - Mark

25 years, 10 months

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Compaq Deskpro 286

by rigdonj＠intellistar.net

FYI. Q: Need setup disk. A: Eureka! Try "http://www.compaq.com/support/files/obsolete_diagnostics.html". I think the file that you want is the one named "SP0316.zip". Unzip it and it will create the install file for a 360K disk. The same webpage has the install file for creating 3.5" disks also. Joe

25 years, 10 months

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New find - OSI Challenger 4P

by r.stek＠snet.net

Wheeee! I got an OSI Challenger 4P today (does this complete my collection of early micros with walnut sides? I now have my Sol and NorthStar Horizon and Challenger.) Of course it would be even better if it worked or at least I had some documentation. A shielded cable terminating in an RCA phono plug exits the cabinet. The fan turns and apparently something is being output. I tried a mono composite monitor with no luck, but channel 11 (?) seems to give what could be a screen image with several inverse video blocks scattered down the left side (we have a STRONG channel 3 here, and 4 is garbage). Pressing "return" shows no change in the screen, nor does pressing a momentary-contact switch (home-brewed?) above the keyboard labeled "Break Enable." Since I never even saw one of these in the 70's, I could use some help. Does anyone have docs they would be willing to copy for a reasonable fee? Any other advice cheerfully accepted. Bob Stek Saver of Lost Sols

25 years, 10 months

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[PayPal] PayPal to start charging for what used to be free!

by mac＠Wireless.Com

Well, the Beginning of the End for PayPal, as I see it. I predicted it. It's happening. Oh well! Now can you see why I detest this low-life pond scum operation? -Mike ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PayPal Raises Fees, Looks For New CEO and Profits By STACY FORSTER October 10, 2000 PayPal.com delivered a popular solution to a vexing problem -- how to send and receive money over the Internet. But the bigger challenge for the two-year-old start-up will be to make money in the process. With its sights set on profitability and an initial public offering, PayPal's parent company, closely held X.com, is looking for a new chief executive officer. On Sunday, Elon Musk, the founder and chief executive of X.com (www.x.com), said he is stepping down to allow the company to bring in a leader with more experience. "Elon has had great start-up experience, but he's never run a major public company," says Peter Thiel, chairman of X.com. Mr. Thiel says he expects the company to be profitable by the end of 2001. And in move that may be controversial, PayPal will begin charging some consumers fees on Oct. 16 for a service that used to be free. The company, which had depended largely on interest income on cash in its customers' accounts, plans to charge a fee of 1.9% plus 25 cents per transaction for anyone who receives more than $500 in credit-card payments in a six-month period. Before, only businesses were charged the fee. "They're struggling to come up with the business model," says James VanDyke, an analyst with New York e-commerce research firm Jupiter Communications. PayPal, which launched its service in October 1999, merged with X.com in March. Analysts say the combined company dominates the online person-to-person payment business, boasting nearly four million customers and 300,000 business accounts. Each day, PayPal completes about 130,000 transactions and moves about $6 million. PayPal says it is accepted by more than half the auctions on eBay, compared with only 10% for its closest competitor, Billpoint (www.billpoint.com), a joint venture between eBay Inc. and Wells Fargo & Co. PayPal's registered users can send payments to anyone with an e-mail address by writing a dollar amount on a form at the company Web site. When the e-mail is sent, the payment is charged to the sender's bank or credit-card account. If the receivers aren't registered, they can fill out a form attached to the e-payment to receive the money, which is waiting in a PayPal account in the receiver's name. PayPal has grown rapidly by encouraging users to recommend the service to friends and families, offering a $5 reward for opening an account or referring a new customer. But all that has been costly. "They now need to create a strategy that walks the tightrope between maintaining the critical mass of customers and figuring out a way to make money," says Paul Jamieson, a financial services analyst for e-commerce research firm Gomez Advisors in Lincoln, Mass. And some customers already are angry. Peter Resnik, a financial consultant from Nokomis, Fla., who conducts about 100 auctions a month for antique paper items on eBay, says he feels duped by advertisements promoting PayPal as a free service. He contends those advertisements were aimed at the auction sellers who helped PayPal develop its large customer base. "They led you down the path with the impression that this was a free service and there were no strings attached," Mr. Resnik says. PayPal first began charging fees when it introduced business accounts in June, says X.com spokesman Vincent Sollitto. Mr. Sollitto says they PayPal is implementing the new policy because some people were using the personal accounts for business purposes to avoid fees. Mr. Thiel says the new policy will affect only about 250,000 customers, or 6%, of its customer base of four million. Users were notified about the policy change last week in an e-mail. X.com's competitors vary on their policies for credit-card transactions. Ecount.com (www.ecount.com), PayMe.com (www.payme.com) and PayPlace.com (www.payplace.com) do not charge for credit-card transactions. For transactions of more than $15, Billpoint charges 1.75% plus 35 cents a transaction for business accounts and 2.5% plus 35 cents a transaction for personal accounts. EMoneyMail (www.emoneymail.com), a payment service offered by BankOne Corp., charges customers $1 to send money, but there is no cost to receive funds.

25 years, 10 months

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Need Keyboard for TRS 80 model 100

by Innfogra＠aol.com

Hi; I just got a TRS-80 Model 100 Portable computer. It rattled when I picked it up. After opening it up I see that it has a busted keyboard. Does anyone have a spare keyboard from a parts 100? I would like to get it up and running again. Thanks, Paxton Portland, OR

25 years, 10 months

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Free 11/02 (Was: Another PDP-11 available: Wisconsin)

by geoff＠pkworks.com

Well, surprise, surprise, I'm responding. The problem with a "free" offer is that there's always a catch. Which is, no way I can take time off to get to Toronto for a pickup. Sigh. But it is a realizable fantasy... Do keep me in mind should you absolutely have to trash the box someday. -----Original Message----- From: Jerome Fine <jhfine(a)idirect.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>; Geoffrey G. Rochat <geoff(a)pkworks.com>; Tarsi <tarsi(a)binhost.com> Date: Wednesday, October 11, 2000 9:13 PM Subject: Re: Free 11/02 (Was: Another PDP-11 available: Wisconsin) >>Geoffrey G. Rochat wrote: > >> If you want to lose one of those 11/2s, please get in touch! > >>Tarsi wrote: > >> I'm sure I could find room for one as well. :) > >Jerome Fine replies: > >Well, my wife is recovering from a knee replacement right now, so >I am the current house spouse. That means no shipping, just local >pick-up in Toronto. I you want my phone number, just ask and >we can arrange for a time for you to come and get one. > >But you also have to take an empty RL02 cabinet. :) > >If anyone responds, I will be surprised - last time I tried to >unload an 11/34 backplane and power supply, it took over >a year. It was the only Unibus stuff I had and there was no way >I could use it. But it would have been sad to see it be just tossed. > >Sincerely yours, > >Jerome Fine

25 years, 10 months

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A LART is needed (was: VCF 4.0)

by geoff＠pkworks.com

One place to look for hamfest and fleamarket information is in Nuts & Volts magazine. Another is to contact Steve Finberg, the MIT Fleamarket Mavin. Does anyone have his e-mail address? -----Original Message----- From: Neil Cherry <ncherry(a)home.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Wednesday, October 11, 2000 5:52 PM Subject: Re: A LART is needed (was: VCF 4.0) >"R. D. Davis" wrote: >> >> On Wed, 11 Oct 2000, Hans Franke wrote: >> > PLEASE, give me some break - right around eVCF is a bad idea. The time >> > before I may be ocupied by some kind of organisation, while right >> > after I'm occupied by Sallam :)) Serious, I'd realy love to visit >> > VCF East, or Midwest or Whatever. In my opinion mid June may be a >> > reasonable time frame. >> >> Great, just what we need on the right coast, something else to cause >> more damage to hamfests and deplete them of the few remaining >> "vintage" computers. ...as if e-bilk wasn't bad enough. Does anyone >> (Tony (DRARD)?) have an appropritately suitable LART for that idiot >> who wrote the book on computer collecting a few years ago who got all >> these problems started? > >Where can I find out more about the Hamfests in my area (NJ, USA)? I >was going to attempt to see if any serious effort was being made to >have a Vintage computer section in the 2001 Trenton Computer Fair. They >attempted it last year but no one except the a few Ham's with Ham >equipment showed up (no computers). > >-- >Linux Home Automation Neil Cherry ncherry(a)home.net >http://members.home.net/ncherry (Text only) >http://meltingpot.fortunecity.com/lightsey/52 (Graphics) >http://linuxha.sourceforge.net/ (SourceForge)

25 years, 10 months

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Another PDP-11 available: Wisconsin

by ajp166＠bellatlantic.net

From: Jerome Fine <jhfine(a)idirect.com> >The real trouble is that I think you are correct for being very inclined >to be real PDP-11 hardware oriented. But do you feel it is OK for >me to be very inclined toward software? If your answer is YES!, >then we both agree completely. BUT, I will still continue to agree >that real PDP-11 hardware is great for those who are inclined that >way!! Short and to the point I don't consider PDP-11 to be "very hardware". S100 and autoconstructed are "hardware" to me. On the otherhand Nothing wrong with being software oriented. I happen to do that with only one difference, I use native hardware. Allison

25 years, 10 months

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OT collecting old pinballs

by wrm＠ccii.co.za

>How do you tell the pinballs apart? You look at the scratches *very* carefully -- it's like fingerprints :-) Hey, we normally talk about "pins", think about all the things you could have said about that :-) >Well, they are older than my car Ja, but you live in the states (I assume). Our newest Land-Rover is a 1965, my one is a '59, my wife drives a '55. My Puma is a 1974 (and, I had to pull up my web page to get that information -- now *THAT'S* crazy :-) Restoring? Both Land-Rovers and pinball machines (OK?) can be rebuilt >from the ground up. Fascinating hobby, these analog computers (And I'm not talking about the LR, OK?) Some people, sheesh! :-) W

25 years, 10 months

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OFF-TOPIC Re: Re[4]: You might be a VMS Bigot if.....

by mtapley＠swri.edu

> The lack of so-called "vulgar" language in one's vocabulary demonstrates a > fundamental lack of maturity. I would say that depends very heavily upon one's definition of the word "mature". I can report, without regret, that I'm unlikely ever to be "mature" by that definition - and I was born in 1962. (I will admit the caveat that a fear of using "vulgar" language, in the *very rare* situations where it really is appropriate, is also not necessarily healthy.) - Mark

25 years, 10 months

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Another PDP-11 available: Wisconsin

by geoff＠pkworks.com

If you want to lose one of those 11/2s, please get in touch! -----Original Message----- From: Jerome Fine <jhfine(a)idirect.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Wednesday, October 11, 2000 11:11 AM Subject: Re: Another PDP-11 available: Wisconsin >>ajp166 wrote: > >> On the other hand the posting was rather strong. There is nothing >> wrong with an 11/2. True an 11/23 has more oomph and all but an >> 11/2 is configurable as a very nice small machine. Paying 100$ >> for one is questionable in my mind on because they were so >> common (over 100,000 cpu boards made). I have a few. > >Jerome Fine replies: > >I have a few as well - and if I can ever find someone to actually use >them, they will go for free. I can't ever remember actually using >one although I might have attempted to test one just to see if >it would work - in hindsight, I don't know why since I never >had any intention of getting by with just RT11FB in RT-11. >Actually, I have both versions - dual and quad. > >This is not a slight on those who like hardware far more than >I do, just my own opinion - which I believe I stated at the beginning. >The key point is that when testing software, the emulator is so >much faster that it runs rings around the real hardware. PLUS - >and this is a VERY BIG PLUS - I had occasion to attempt >to debug (or at least understand) the boot code for a stand alone >program. Try stepping through the boot block of an RX02 on >a real PDP-11. With the emulator and even rudimentary >[Thank goodness for the spell checker!!] debugging facilities >(only one break point address - but at least single step was >enabled), it was trivial - after all, there was only a single block >of code to debug. > >In fact, I very much admire someone who can rescue an 11/44 >from the scrap heap. But I do not know how and I am too busy >in any case. And my back is no longer strong enough. > >Sincerely yours, > >Jerome Fine

25 years, 10 months

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Moving a Microvax II

by fauradon＠mn.mediaone.net

Speaking of ebay: here is a $700 commodore 64 with the reserve not met http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=454431985 Francois -----Original Message----- From: Neil Cherry <ncherry(a)home.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Tuesday, October 10, 2000 10:12 AM Subject: Re: Moving a Microvax II >Will Jennings wrote: >> >> Haha, ah yes... gotta love Virgil Rice.. I bought something from him once >> and even though I picked it up from his house, he still wanted me to pay >> like 30 bucks shipping.. He has lots of cool stuff that I'd love to buy, but >> not at the kind of prices he wants for it.. It would be far less irritating >> were he not only about 40 minutes from me... He has an HP 21MX that I've >> drooled over but he wanted like 700 dollars for it... Hell, he wanted 200 >> bucks apiece just for empty HP racks... Sorry for the rant, but people who >> would rather throw stuff out because they can't get what they think its >> "worth" truly irritate me... I'm not asking people to give everything away, >> just to be reasonable about negotiating... > >I'm not getting it from Virgil, I'm getting it from someone else (I let them >chime in if they so choose :-). I'm getting it at what I consider a fair >price and I'm not paying shipping (but I will be paying tolls, I think). > >As far as the rant, that's OK, I've noticed a few people on ebay failing >to understand the true value of various computer equipment. Note to those >who wish put stuff on ebay: > >1) If it's heavy you're in trouble unless it's really rare (not like > a steak :-). >2) Reserves are a pain, I've seen lots of stuff get ignored because > of reserves. Heck I've even bid on equipment only to discover I > couldn't go above the reserve. >3) Try to get a picture and if you do get a clear one. >4) If I can buy the same device used for around the same price, I'll > ignore the item. > >I have more rants but I can't remember them all. > >-- >Linux Home Automation Neil Cherry ncherry(a)home.net >http://members.home.net/ncherry (Text only) >http://meltingpot.fortunecity.com/lightsey/52 (Graphics) >http://linuxha.sourceforge.net/ (SourceForge)

25 years, 10 months

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48v dc power

by ajp166＠bellatlantic.net

From: Daniel T. Burrows <dburrows(a)netpath.net> >Also some of the 12v UPS's will not start from just battery. They have to >"fail over to battery" I do have a 1KVA Triplite that is 12V and does start >from just battery. So keep your eyes open for those. >>"Shawn T. Rutledge" wrote: >>> >>> On Sat, Sep 16, 2000 at 05:25:23AM -0800, Mike Ford wrote: >>> > I have some 48-57 vdc input, otherwise PC normal output power supplies >for >>> > about $5 each. Ask now if anybody wants some, basically I "think" new >units This is something I'd like to get a few of. I have one CP/M system I've built that runs from battery/solar but I'd like to find some power supplies for 12v to +5/+12/-12 for more hacking. Allison

25 years, 10 months

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