test-drb

test-drb@ccmp.vtda.org

101090 discussions

by dm561＠torfree.net

Date: Mon, 15 Sep 2008 22:03:28 +0100 (BST) From: ard at p850ug1.demon.co.uk (Tony Duell) Subject: Re: substitute tube for DEC VR201? > > On Saturday (09/13/2008 at 08:52PM +0100), Tony Duell wrote: > > > I'm also toying with the idea of fitting an LCD into a VR201 cabinet > > > and although it wouldn't be authentic, it would sure make the system > > > more useable. > > > > I am curious as to why an LCD in the VR201 cabinet is more useable than > > the CRT. I can't see much difference in useability (but would much rather > > have to repair a CRT_based monitor than an LCD-based one). > > Well, if I can't find a tube to replace it... then I'd consider an LCD. Do you really have no old 12" monchrome portable TVs/monitors around? I am sure you could find a CRT that would work. ---------------------------- I've got a number of CRTs here, white/green/amber, new/used, various sizes, if the OP's serious, but I'm not sure how I'd safely ship one. m

17 years, 7 months

HP-IB Mass Storage Emulation (Help)

by niche＠iinet.net.au

Any progress on this HP-IB Mass storage device for a PC ? Regards from Mike Massen BSc Network Power Systems Lab 08 9444 8961 Mb 0438 048961 Perth, Western Australia * VL/VK & VN/VP/VR GMH Commodore Fuse Rail that wont warp or melt ! * RB30 Skyline/Nissan/VL Milspec ignition drivers with diagnostic features now in economy trials * Twin tyres for most sedans, trikes and motorcycle sidecars * Industrial grade PolyVinyliDeneChloride (PVDC Copolymer) in bulk, the best oxygen and water protective barrier you can find for circuit boards. Web site under construction http://niche.ii.net Pictures of visit to Mendulong re RAPS retrofit, http://members.iinet.net.au/~erazmus/Power/

17 years, 7 months

UPS Store has me annoyed

by tiggerlasv＠aim.com

On 15 Sep 2008 at 17:25, David Griffith wrote: > Second, the prices of their boxes is astronomical. > A 30x30x20 outer carton cost $12. > The inner carton cost $8. The total just for packing this computer came to $68. > The computer itself sold for $55. I work for a freight company; 36 x 22 x 20" boxes cost us $11.75 each, when purchased in quantities of 50 or more. We order full rolls of large-bubble bubble-wrap at aroudn $45 / roll; 1/4 roll would cost you about $11.25. I'd say the price for packing is reasonable, taking into account labor, and their markup. If you're going to ship this type of equipment, it's best to get a rough quote first, and simply advise the buyer that he is responsible for all shipping costs. Yeah, it's nice to have an exact dollar amount ahead of time, but the only way that's going to happen is if you take your photos first, have the unit boxed up, and then post it for sale. Alternately, you can buy the materials yourself; U-haul has an interesting selection of boxes, and also carries rolls of bubble wrap. That has the added benefit of knowing that your item is adequately packed. T

17 years, 7 months

IBM 5150 4/81 bios

by jzg22＠drexel.edu

Does anyone have a copy of this? Its needed for the MESS (a computer hardware documentation/emulation) project. -- Jonathan Gevaryahu jgevaryahu(@t)hotmail(d0t)com jzg22(@t)drexel(d0t)edu

17 years, 7 months

[Ottawa, Canada] Sale of working Columbia 1600-VP

by falbert＠rogers.com

To make space I am having to part with the above computer. Condition is "Good - Working" (i.e. no parts missing, a few scuff marks and other signs of wear. Boots up and runs fine.) I have just tested it using Communique 3.1 (an old DOS word processing package) and - after adjusting a few keys in the keyboard - it works fine. Description Columbia 1600-VP by Columbia Data Products Date of Manufacture 2-84 Rev J Serial Number 13136A Portable (luggable 35 lbs/16Kg) IBM clone 9" green monitor 2 5.25 (360K) disk drives 128K memory Other info on the 1600 can be found at: http://www.old-computers.com/museum/computer.asp?st=1&c=889 I have a boot disk for it and several word processing programs (it was used to teach word processing). I also have well over 100 5.25 disks as well. I'd be happy to include these for no additional charge. Any reasonable offer plus shipping will be considered.

17 years, 7 months

UPS Store has me annoyed

by dgriffi＠cs.csubak.edu

I went down to the local UPS store to have an Osborne Executive double-boxed for shipping to its new owner. I previously had this store double box two IMSAIs and two Altairs. Each time it cost around $35 to do it. This time it was way out of line. First, they were out of big bubbles, so they had to use lots more of the little bubbles to get two-inches of padding all the way around. Second, the prices of their boxes is astronomical. A 30x30x20 outer carton cost $12. The inner carton cost $8. The total just for packing this computer came to $68. The computer itself sold for $55. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

17 years, 7 months

HP-150 and AT&T 3B1 UNIX box, FREE in Spokane, Washington

by tosteve＠yahoo.com

Please contact GARY below, these are not my systems. ---------------------------------------------------- One HP 150 touchscreen (1984), inkjet printer and software. Also have one AT&T 3B1 UNIX box, with software. They both work. Free, you pay shipping. Gary Redmond gfredmond at comcast.net ----------------------------------------------------

17 years, 7 months

The Great Trailer Incident -- ECLIPSED !!!

by evan＠snarc.net

Many of you may recall The Great Trailer Incident (tm) of 2004, in which cctalk owner Jay West ventured from St. Louis to Boston for VCF East 2.0, only to encounter a flat tire, incompetent police dispatchers, poison ivy, and -- according to rumor on the VCF show floow -- arrest, fire, crashing, computer tragedy, possibly death, and/or an encounter with a minicomputer-hating wild boar. Okay, so the part about the minicomputer-hating wild board MIGHT not be true, but personally I think that's what really happened. Jay's version of the story is here: http://www.classiccmp.org/pipermail/cctalk/2004-July/045851.html I'm simultaneously proud (and fucking ASTOUNDED) to share the news tonight that Vince Briel, this weekend at VCF East 5.0 in New Jersey, ** BEAT ** Jay's adventure!!!!! Vince's weekend began ordinary enough. He packed his car and left Cleveland on Friday morning for the 8-hour drive to central New Jersey. He arrived in the late afternoon / early evening. Just like the other exhibitors who arrived Friday for the Sat./Sun. event, Vince unpacked his car and began setting up his table. Then he came to me after an hour and said, "Evan, there is a problem." He looked extremely distraught. I know Vince pretty well, so I figured either there was a real problem, or (more likely) there was a punchline to follow, perhaps at my expense. Vince was scheduled to run a replica-building workshop this morning. What he revealed Friday night was that he forgot to pack the replica kits. No boggie. Just cancel the workshop, and people will understand that it was a simple mistake, I told him .... but Vince would have none of that .... in the dark and in the pouring rain and clearly tired, Vince decided to DRIVE BACK TO CLEVELAND TO GET THEM. I and others tried to talk him out of it, with no luck. Vince got home to Cleveland, slept for just 2 hours, then made sure he had the kits this time and DROVE BACK TO NEW JERSEY -- for a total of 24 hours of highway driving in about a 35-hour span -- much of it in the dark and/or rain, and much of it on increasingly little sleep! Quite frankly, I wouldn't want to have been the cars near him, especially on the second trip to Jersey yesterday morning. His workshop this morning was a huge success. Then a few hours later, after the show ended, he (of course) drove home (again) to Cleveland. In total that's 32 hours of highway driving, much of it in the dark and/or rain, much on little/no sleep, spending hundreds of dollars on gas, all a three-day span, just because he's a dedicated, hard-core, loyal, and (apparently) clinically insane VCF supporter. THE GREAT TRAILER INCIDENT HAS BEEN BEAT. Vince is god. - Evan

17 years, 7 months

PCjr Telnet Server Test

by oldcpu2＠rogerwilco.org

Sun Sep 14 12:17:30 CDT 2008, Jason T said: > First of all, way cool project. I'm in now with a couple different > clients (Windows and PuTTY in raw mode, showing the echo you > mentioned.) Is anyone unable to route to this IP? I'm on Comcast > cable and in fine, but a local friend with AT&T DSL shows no route to > that host, which is a bit odd. You're on Charter (cable, I think?) so > it's not like you're some offshore spamhaus. Then again it could > just be him. Weird. I'm using Qwest DSL, and have no problems reaching The Mighty Peanut. We tried a couple of WinXP telnet and PuTTY sessions. I noticed that the WinXP telnet client was listed as "ANSI" and the PuTTY client was listed as "XTERM". I had to use Shift-Backspace or CTRL-H to backup on PuTTY. The Win client worked fine with the backspace key. I don't have any way to really pound the little peanut, but I did just sit on my RETURN key for a while, and let the peanut try to send the HELP message as fast as my RETURN key would repeat. Seemed to hold up just fine. Well done, Mike! - Jared

17 years, 7 months

manual 4 A B&C Microsystems 1409 Prom Burner

by dm561＠torfree.net

Date: Fri, 12 Sep 2008 12:28:07 -0700 From: dave hunter <hunt_x at hotmail.com> Subject: manual 4 A B&C Microsystems 1409 Prom Burner >Hi mike I just found a post where you stated you had a manual >for one of these beasts (B&C Microsystems 1409 Prom Burner) >whats the chance i could get a copy I could shoot you cash via >paypal asap thanks a million >Dave Hunter --------- I replied off-list; let me know if you got it and if it's what you need. m

17 years, 7 months

ISO: NEC UPD72070 IC

by ajp166＠bellatlantic.net

> >Subject: Re: ISO: NEC UPD72070 IC > From: "Chuck Guzis" <cclist at sydex.com> > Date: Sat, 13 Sep 2008 08:36:26 -0700 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >On 12 Sep 2008 at 18:58, Allison wrote: > >> It in the intel data book page 3-32 (1988 volume2 peripheral with black cover). >> I have that datasheet but the scanner is down. > >You're not thinking of the 82078 are you? 64 pin, but very different >chip, both in pinout and command set. If you've got a part number, >I'll go digging for it, but AFAIK, the NEC part was a special for >Apple--I've never seen it anywhere else. > >Cheers, >Chuck Oops, intel 82070 a reall oddball as well but not the same part. Allison

17 years, 7 months

Anyone have some spare external DSSI cables? (VAX 4000 to HSD10)

by glen.slick＠gmail.com

I have an HDS10 in a BA350 I'd like to try attaching to a VAX 4000 but I'm missing an appropriate external interconnect cable. It appears that what I need is a BC29R (p/n 17-03855-xx) or equivalent cable with a PS connector on the VAX end and a MR connector on the HSD10 end. Anyone have some extra of these that they don't need and are willing to part with them for a reasonable amount plus postage in the US? -Glen http://h71000.www7.hp.com/wizard/cable-guide.html BC29R DSSI Cable for HSD. Description: DSSI cable to connect the VAX/DEC 4000 system to the HSD05 or HSD30 DSSI to SCSI adapter/controller. Specification: Connectors: One 50-way MR (micro-ribbon) right-angled connector for the HSD, and one 50-way PS (pin socket or tab) right-angled connector for the system end. Ordering Information: BC29R-06, -09, -16, -30, 45, -60. p/n 17-03855-04, -05, -06, -07, -08, -09.

17 years, 7 months

ISO: NEC UPD72070 IC

by ajp166＠bellatlantic.net

> >Subject: Re: ISO: NEC UPD72070 IC > From: "Chuck Guzis" <cclist at sydex.com> > Date: Fri, 12 Sep 2008 12:21:20 -0700 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >On 12 Sep 2008 at 11:34, Al Kossow wrote: > >> Very unusual part. It was the only externally developed floppy controller >> Apple ever used that supported GCR. Were you able to find data on it? > >In Japanese, a datasheet along with an app note on NEC's website >(http://www.necel.com). Easy enough to suss out in spite of the >chicken scratches. Basically a uPD765 controller with a bunch of add- >ons for the GCR stuff. > >> I doubt you will be able to find one w/o unsoldering it from an AV board. > >I suspect as much. Maybe there's someone out there with a junker... > >Cheers, >Chuck It in the intel data book page 3-32 (1988 volume2 peripheral with black cover). I have that datasheet but the scanner is down. Allison >

17 years, 7 months

PCjr Telnet Server Test

by jeff.kaneko＠juno.com

Waaaaaaaay too cool . . . . -- "Michael B. Brutman" <mbbrutman-cctalk at brutman.com> wrote: It's running! Telnet to 97.86.233.68 to take a look and help me test it. You can use the standard Windows telnet program, Putty, Linux, or whatever you have handy. Around 10 users can be on at the same time. When you sign on (no password required) there will be a little menu to help you waste some time. Some things you can do are see who else is on the server, view the machine type, ROM BIOS date and DOS version, check the TCP/IP statistics to see how much traffic it is handling, etc. There are some upgrades since the last time I ran this test (in Dec 2007): - The TCP/IP stack is much better - I'm doing 'telnet' negotiation to figure out the terminal type, turn echoing on, etc - Crude line editing has been added Right now it is running on my PCjr using a Xircom PE3 10BT. I plan to leave it up as long as it runs, or three days, whichever comes first. It is a PCjr so if there is a momentary delay, don't panic - it's probably just doing disk I/O. Backspace is a little dodgy .. it really wants ASCII 8 and a lot of terminals and emulators do ASCII 127 instead. Try variations with the shift and control keys if it doesn't work. Thanks, Mike ____________________________________________________________ Save hundreds on an Unsecured Loan - Click here. http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3m3iTRdQUEvUXDmbZcm2uAgLT…

17 years, 7 months

FFS: Visual Terminal guides

by silent700＠gmail.com

Free for shipping from 60074: Visual 630 User's Guide and Visual 600 Owner's Guide. Two spiral-bound books in very good shape.

17 years, 7 months

manual 4 A B&C Microsystems 1409 Prom Burner

by hunt_x＠hotmail.com

Hi mike I just found a post where you stated you had a manual for one of these beasts (B&C Microsystems 1409 Prom Burner) whats the chance i could get a copy I could shoot you cash via paypal asap thanks a million Dave Hunter _________________________________________________________________

17 years, 7 months

ISO: NEC UPD72070 IC

by aek＠bitsavers.org

> Anyone have a spare one of these chips? This was used as the floppy > controller on the AV Macs. Very unusual part. It was the only externally developed floppy controller Apple ever used that supported GCR. Were you able to find data on it? I doubt you will be able to find one w/o unsoldering it from an AV board.

17 years, 7 months

The MicroChip is 50 today.

by aek＠bitsavers.org

The Texas Instruments integrated circuit is 50 today. I have no idea what a "MicroChip" is. "Microchip" is the company currently making PIC microprocessors.

17 years, 7 months

ISO: NEC UPD72070 IC

by cclist＠sydex.com

Anyone have a spare one of these chips? This was used as the floppy controller on the AV Macs. Contact me off list if you've got one that you are willing to part with. Thanks! Chuck

17 years, 7 months

Osborne 1

by tponsford＠rnsmte.com

So I was complaining to my significant other on the recent dearth of classic computers at out local university auction! Well the computer gods must have heard me as I got a working Osborne 1 in great condition, with even the cp/m disk in the floppy drive for $15.00 on Tuesday!! I am now only missing a KayPro for my "luggable" collection to be mostly complete!! Cheers Tom

17 years, 7 months

Suggestions for cleaning hundreds of socketed chips?

by derschjo＠msu.edu

Hey all -- I've gotten the power supply in one of my ND-812s running (thanks for the help w/the 1103 data which helped verify the voltages) and it appears to be within spec under load (correct voltages, no ripple in the output, etc...) so I powered the machine on and despite having my fingers crossed, the machine does not run. (No real surprise there). Random lights on the front panel, and basically no response to any toggle switches. I started pulling out and reseating the chips on the main CPU board and powered it up after every few rows, and every time the behavior was slightly different, so I'm fairly sure that the sockets and chips aren't all making good connections anymore. Seems like solving this problem would be a good place to start. The problem is that there are 25 rows of 13 chips each (all socketed), in very close proximity to one another. The chips are in sockets with wire-wrap pins underneath -- the underside of the main CPU board is a maze of wire wrapping. Most of the chips have date stamps between 1971 and 1973, but luckily most of them aren't corroded to the point where they're falling apart. How would you suggest cleaning the sockets and the chips to ensure good connections? Thanks, Josh

17 years, 7 months

Another disk imaging project

by lynchaj＠yahoo.com

Hi, I came across the following message from Dave Dunfield from a couple of years ago during a search related to the Z80 i8272 home brew project I am working on. I recently got the i8272 FDC to reliably read sectors from a MS-DOS formatted 5.25" floppy disk drive. This project is underway but I am a long ways from completion. During the debugging of my system, I have noticed that there some possibly useful raw disk signals being generated by the data separator chip. These could be rather easily exported to support a disk imaging project were anyone interesting in such a thing. The signals are going *into* the i8272 (NEC 765) for processing and are raw data signals. The i8272 would not be used to process the data. This *potentially* opens up access to any FM/MFM encoded disk even hard sector. I don't know about other formats such as GCR, M2FM, RX02, etc. Here is what I propose; my SBC and Disk IO board generates intermediate product signals such as "separated clock", "separated data", "clock out", "index", etc and buffer them through a 74LS367 or similar. I am willing to make *MINOR* modifications to the Disk IO board to export these signals via a connector and even add one or two small chips to the design to improve signal quality. I am *NOT* willing to make major modifications to the design at this point as I have a mostly working system and do not want to start over. The intermediate disk signals could, *I believe* be imported into a PC parallel port with "clock out" (typically 500 KHz for MFM DSDD, 250KHz for FM, etc) being used for latch signal. I think they are also slow enough to be practically captured by the PC parallel port. The PC could then sample the parallel port at high rate (interrupt driven? DMA?) to read the signals and create a disk image from the data. Again, the i8272 would not process the signals so they would contain all the data the i8272 processes but will not pass along such as header info, IDAM, CRC, true gap length, etc. I could even include true "raw read" signal which would be the bit transitions straight from the drive however due to the high sampling rate required to accurately capture it I really don't think it would be much use. Would it be possible and/or practical to make a PC based disk imaging tool using the SBC as an intermediate stage? Please note, I am only offering to make minor modifications to my SBC and Disk IO board to support such a project, not to conduct a PC based disk imaging software development project myself. I wrote some hard sector Catweasel programs earlier for Heath, Vector Graphic, and NorthStar so I have some familiarity working with raw disk data, however, the home brew Z80 project is using up all my hobby time. If you are interested please reply here or contact me. Thanks! Andrew Lynch PS Here is the Z80 i8272 home brew project I am working on for background information http://groups.google.com/group/n8vem?hl=en Another disk imaging project Dave Dunfield dave04a at dunfield.com <mailto:cctech%40classiccmp.org?Subject=Another%20disk%20imaging%20project&I n-Reply-To=> Wed Aug 3 04:58:06 CDT 2005 * Previous message: ImageDisk and some 8' images posted * Next message: Another disk imaging project * Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] ________________________________ Hi Guys, I'm really getting fed-up with the limitations of the PC floppy disk controller. Here's another idea I've had on the back-burner for quite some time, I've mentioned to a couple of you during private correspondance, but here it is for open discussion. The idea is to make a small single-board computer with a microcontroller, a WD2793 or similar floppy disk controller, enough memory to buffer a few tracks, and a high-speed serial port for communication with the PC. The board would have connectors for 5.25"/3" drives and 8" drives, and would properly interface to all drive types. Firmware would be developed to provide read/format/write/analysis capabilities around the more powerful WD chip. Images would be transferred via the serial connection to and from the PC. This should allow us to archive soft-sector formats that are not compatible with the PC, and also to perform these functions under virtually any PC environment. I just haven't had time to design and build the board ... anyone else interested in working together on such a project? Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

17 years, 7 months

ECC on MFM drive

by ra9yer＠yahoo.com

>> Yes. Indeed. I checked it again and it is the regular >> CRC circuit with unusual initial value and polynomial. > What are these values? They are not documented in the data sheet. The polynomial is 0x140a0445 (x32+x28+x26+x19+x17+x10+x6+x2+1), the initial value is 0x9dcd57c0. It is need to do following steps to check crc: 1 Init sift register by initial value 2 Process 0xf8 (MSB first) 3 Process 512 bytes of data 4 Process 4 bytes CRC. If everything is ok then value in the shift register will be zero. Alexander.

17 years, 7 months

DEQNA/DELQA cab kit with DEUNA/DELUA?

by oldcpu2＠rogerwilco.org

> The DEQNA and DEUNA print sets have been on-line for some time. > > Don't forget the archives and links at: vt100.net/manx > Here is the DEUNA link: > > http://vt100.net/manx/details/1,3463 As for locating the DEUNA information, thanks to an earlier respondent, I have dragged a copy of that out of bitsavers.org. For some reason, I just couldn't find it. I must have looked in various PDP subdirs, the ethernet subdir, but missed it in the unibus subdir. Doh! [BTW, a huge thank you to Al and Paul for building and maintaining such valuable resources. Where's the tipping jar, eh, gentlement?] Thanks to all who replied to my original post. It is clear that the cab-kits for QBUS modules are more or less usable with UNIBUS modules. That's the news I was hoping to find. It'll still be a while before I'm ready to test it all out on the 11/750, due to ongoing power supply hickups and troubleshooting, but it shouldn't be long now. Jared

17 years, 7 months

Okay, THIS is the final VCF East reminder

by evan＠snarc.net

Very last pre-show email ..... if you live within a few hundred miles of the Jersey shore, and you dig vintage computers, then don't be a putz! Come to the VCF East 5.0 this weekend. Tickets are 10 bucks for one day or 15 for both days. Free for 17 and younger. Parking's free too. Saturday is usually the busier day, but on Sunday (at 11:30) is a speech by Bill Mauchly, who's the son of John Mauchly, of ENIAC and UNIVAC fame. We're also opening the computer museum here in "beta" mode. More info is at the usual spot: http://www.vintage.org/2008/east/ I'm WAY too busy with final details to check back on cctalk, so if anyone has questions, please just call my cell phone, 646.546.9999. - Evan K.

17 years, 7 months

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