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

by pete＠dunnington.u-net.com

On Jun 3, 10:39, Dwight K. Elvey wrote: > There is a difference between single and double > density that is related to the position of the index hole. Are you thinking of the different position of the index hole in 8" disks? That differentiates single-sided from double-sided, not densities. > My > understanding is that unlike the 5-1/4 disks, the 8 in. media > is the same for the single and double density, just higher > quality. In fact, I punch a new index window in some of my > double density 8 inch floppies and I've been using them, with > no troubles, as single density. > The 5-1/4 disk are a different story. Single/Double don't mix. Sure they do. Same coercivity. There might be a difference in quality on early ones, but barring flaws in the emulsion coating, they're interchangeable, and you can always use DD as SD. It's single/double density and high density that are different. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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8" hard sectored floppies

by dwight.elvey＠amd.com

>From: "Fred Cisin" <cisin(a)xenosoft.com> > >> >Unfortunately, the 765 does a "reset" of the chip whenever it sees the >> >index. It can handle NOT having an index hole (AFTER formatting), >> >but excess holes will keep it from working. > >On Thu, 3 Jun 2004, Dwight K. Elvey wrote: >> Hi Fred >> When I first got my first PC, I didn't have anything >> but hard sectored disk that I'd used on my H89. I made >> a foil disk that I put in with the disk to get around this >> problem for formatting. It had a large hole that most >> of the time only exposed one index hole. Placing it >> in the drive was tricky but with access to the top of the >> drive I made it work. >> Of course, I later bought a box of 360K disk but this >> trick did get me started. >> Dwight > >If you just use that for FORMATing, you could then disable the index for >all subsequent access, either by putting opaque tape over the hole in the >diskette jacket (won't work with some TEAC drives), or interrupting that >wire in the cable. Hi Fred I don't recall what drive it had but I just left the hole completely open after formatting and it worked fine for read/write. I don't believe anything cared how often there were holes, after formatting. As I recall, reading disk controller specs, there was an error that could happen if a sector wasn't found within so many revolutions. I don't think my machine used this feature. Dwight

21 years, 10 months

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8" hard sectored floppies

by pete＠dunnington.u-net.com

On Jun 3, 13:34, Fred Cisin wrote: > I don't think that 3M ever made 3.25" (Dysan and Brown) > or 3.25" floppies. Nor 2.5" (TDK and Sony) or Zip disks (Iomega and Fujitsu), as far as I know. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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8" hard sectored floppies

by dwight.elvey＠amd.com

>From: "Fred Cisin" <cisin(a)xenosoft.com> > >> > >Hard and Soft sectored disks are never compatible. >On Thu, 3 Jun 2004, Tom Jennings wrote: >> > Ah, never say never, my friend! ;-) >> I believe the ubiquituous NEC 765 (et al) does its "index" on read by >> scanning for the 0th sector ID (which is 1 :-) The index hole is only >> needed for formatting, and that only for compatiblity. > >Unfortunately, the 765 does a "reset" of the chip whenever it sees the >index. It can handle NOT having an index hole (AFTER formatting), >but excess holes will keep it from working. ---snip--- Hi Fred When I first got my first PC, I didn't have anything but hard sectored disk that I'd used on my H89. I made a foil disk that I put in with the disk to get around this problem for formatting. It had a large hole that most of the time only exposed one index hole. Placing it in the drive was tricky but with access to the top of the drive I made it work. Of course, I later bought a box of 360K disk but this trick did get me started. Dwight

21 years, 10 months

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8" hard sectored floppies

by melamy＠earthlink.net

you forgot Wabash and Elephant disks... at least I have those laying around the house... best regards, Steve Thatcher -----Original Message----- From: "Joe R." <rigdonj(a)cfl.rr.com> Sent: Jun 3, 2004 5:09 PM To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Subject: Re: 8" hard sectored floppies At 01:08 PM 6/3/04 -0700, Grumpy Ol' Fred wrote: >> > I'm almost sure I've seen a 16 hard sectored 8 inch disk someplace. > >On Wed, 2 Jun 2004, Don Maslin wrote: >> I suppose that is possible, Dwight, but it may be a surprise to 3M! > >Although I do not have any examples handy, it would not surprise >me at all to find out that there exist SOME media that weren't >available from 3M! Let's see; IBM, Tektronix, Verbatim, Memorex, Digital, Maxell, Intel, Centech, Radio Shack, Data Systems. That's just some that I have laying around the house. Joe

21 years, 10 months

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HP 4952A Software

by kennj＠telusplanet.net

Guess I'll add my two bits worth... To get the terminal emulator working you need to (and I quote from the manual): 1. Insert the HP 4952A PROTOCOL ANALYZER UTILITY Disc into the HP 4952A disc drive. 2. Press the "more" key unitl <Mass Store> key appears. 3. Press the <Mass Store> key. 4. Place the cursor on "TERM" and press <Load>. 5. Press <Execute> key to load Async Terminal Emulator application program. 6. If the application loaded properly the HP 4952A display should be as follows: <insert picture of initial splash display here> After the application is loaded, a new key appears in the top-level menu (by pressing the <more> key) called <Terminal>. This key accesses the Terminal Setup menu where the terminal parameters can be set and the emulator run. That utility disc also has a "copy disc" utility that can copy entire floppy discs, but your 4952A requires the extended memory option (option 002) to be able to do that. The original floppy is copied into memory, then later copied from memory to the target disc. The format on disc is LIF, HP's standard floppy disc format back before MSDOS and FAT formatted floppies dominated the world :-) Ordinary 1.44MB IBM formatted 2HD floppies work just fine as target discs. I own two discs for the 4952A: - Utlity disc containing sample menus and data, copy disc application, and async terminal emulator application. This disc was originally included with the HP 18260A interface pod. - HP 18621A SNA Analysis disc. Anybody out there have any of the other cool discs? ... - HP 18263A 3270 Installation and Maintenance Software - HP 18264A X.25 and SNA Level Link Level Statistics - HP 18265A DDCMP Analysis - HP 18266A Enhanced X.25 Analysis Kenn have the - power up the 4952A - insert the appropriate floppy into the drive - press the "more" key until the "mass store"

21 years, 10 months

5
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paper tape replacement

by jwest＠classiccmp.org

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=11805&item=381854314… Thought some folks might be interested. Jay --- [This E-mail scanned for viruses by Declude Virus]

21 years, 10 months

2
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Nascom 2 cooling fan(s)??

by julesrichardsonuk＠yahoo.co.uk

Calling on the wisdom of list members here... How warm does a) the PSU and b) the logic circuitry get in a Nascom 2? I'm currently in the process of dismantling the enormous wooden box which my acquired Nascom 2 came in and replacing it with a smaller old wooden box with a hinged lid. Boards (I have CPU board + memory) will be mounted vertically, likely at one end of the new box. Transformer + PSU will be at the opposite end. The machine as I got it had no fan in it, but then the horrible plywood crate was almost big enough to live inside :-) It just had some ventilation holes in the corner where the transformer was. I'm not sure whether I could really do with a fan blowing air over the PSU, or even two, with one on the PSU and one on the card stack. Or maybe passive cooling of PSU + cards is sufficient... Thoughts welcome. If I'm going to go the fan route I should really find period fans I suppose! Incidentally the new box is about 14" wide x 10" deep x 14" high, with a hinged lid, and large iron hinged handles at either end. All tounge and groove wooden construction, using particularly soft wood of unknown origin. In particularly ornate black script it reads "3" on the front and "51 to 79" and "15 x 12" on one side. I have no idea what it was used for, but put the age at probably around 1950 (possibly earlier). It may well be military, Post Office, or railways I imagine. Anyone? I'll reproduce the black lettering on the finished machine I think even though I have no idea what it means :-) The metal hinges and other fittings have been in a electrolysis bath for the last day and are looking particilarly nice. I'll keep the ports all round the back of the box, then if I can somehow build a slimline case for the keyboard then there'll be *just* enough room to stow the keyboard inside the box at the top and close the lid :) cheers Jules

21 years, 10 months

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What's the best way to cut a PB book apart for scanning? Millenium Analyzer

by rigdonj＠cfl.rr.com

I found my Millenium MicroSystem Analyzer manual while searching for the manual for the Brikon 723 FD tester. I thought I'd scan it but it's bound into a paper back book. What's the best way to cut it apart so that I can scan it? My scanner has a feeder and it's th only way to scan something. Joe

21 years, 10 months

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RK07 diskheads

by edward＠groenenberg.net

Hi all, Just a quick question, are the heads in an RK07 the same as in an RL02? They awfully look the same, so I was just wondering..... Ed --

21 years, 10 months

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Brian Instruments BRIKON model 723 floppy drive tester/analyzer

by kennj＠telusplanet.net

Hello Joe, Thanks for your offer to copy the manual. That would be so helpful! I'm located in Calgary, Alberta, Canada, near the beautiful Rocky Mountains. In the interests of trying to help you with your analog cable problem, I'll try to describe what my unit has... Two ribbon cables come out the back of my unit: - A "normal" IBM-PC 34 pin ribbon cable with two connectors on the end (one that mates with the connector found on most 3.5 inch drives and one that mates with the PC-board-edge connector found on older 5.25 inch drives). - A wider 50 pin ribbon that mates with a PC-board-edge connector. I don't know what kind of drive this cable is for! There are also two male receptacles on the back near the center of the unit. - A 20-pin (2 X 10) connector that looks like it will mate with my old Apple II 5.25 inch floppy drives. I have not been brave enough to try it yet! - A 40-pin (2 x 20) connector of the same style as the above 20-pin connector (just longer :-) Inside the unit these two connectors are mounted on a small PC board, which then has a jumper to one of the unit's two plug-in "cards". This small PC board is fed an unregulated voltage, and has a linear regulator (+12 volt if I remember right) mounted on it. Aside from some capacitors, there's not much more on this board. The board looks more like an adaptor than anything else. Could it be you're missing this little adaptor board? If so, I can reverse engineer it for you. It wouldn't be the first time I've created a schematic from a populated PC board! Somewhere around here I have an Apple service manual that gives the pin-outs for the 20-pin floppy drive connector, though I would expect you should be able to find that on the web pretty easily these days. But if you need it, I'll dig it up. Finally, there's the leads to supply power to the drives under test: - one lead ends with a connector appropriate for 5.25 inch drives, and came mated with a short adaptor to fit 3.5 inch drives - the second lead ends with a strange 6 pin (2 rows of 3) connector that probably fits what ever monster the above 50 pin ribbon cable was intended to mate with :-) Please let me know if I can help. My email address (replace the Z with "@" and the X with "."): kennjZtelusplanetXnet (yeah, I already get enough spam!). Take care, Kenn > Kenn, > > I have two model 723s and a manual. I don't remember the details of the > options off the top of my head but I'll try to find the manual and scan it. > I THINK one of mine has some of the analog options but I don't have the > cables for them and I don't know the pinouts. Perhaps you can help with > that. BTW where are you loacted? > > Joe

21 years, 10 months

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RK07 diskheads

by pete＠dunnington.u-net.com

On Jun 3, 9:08, Jason McBrien wrote: > Our resident DEC expert says they are, but he can't remember for sure. (He > used to fix them) > > > >From: Ed <edward(a)groenenberg.net> > > > >Just a quick question, are the heads in an RK07 the same as in an RL02? > >They awfully look the same, so I was just wondering..... That seems unlikely to me, because both RL02 and RK07 are 14" platters, but the RL02 has 512 cylinders and the RK07 has 815. That means the cylinders are closer together on the RK07 (385 tpi instead of 250 tpi, in fact), which implies they are also narrower. The RL02 has embedded (sectored) servo information on every track, the RK07 uses the fourth surface for the servo information. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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RK07 diskheads

by jbmcb＠hotmail.com

Our resident DEC expert says they are, but he can't remember for sure. (He used to fix them) >From: Ed <edward(a)groenenberg.net> >Reply-To: "General Discussion: On-Topic and Off-Topic >Posts"<cctalk(a)classiccmp.org> >To: cctech(a)classiccmp.org >Subject: RK07 diskheads >Date: Thu, 03 Jun 2004 00:01:25 +0200 > >Hi all, > >Just a quick question, are the heads in an RK07 the same as in an RL02? >They awfully look the same, so I was just wondering..... > >Ed > >-- _________________________________________________________________ Stop worrying about overloading your inbox - get MSN Hotmail Extra Storage! http://join.msn.click-url.com/go/onm00200362ave/direct/01/

21 years, 10 months

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8" hard sectored floppies

by pete＠dunnington.u-net.com

On Jun 3, 10:20, Ashley Carder wrote: > I have a DEC RX01 drive and the box of floppies that I have > with it are 8 inch single sided single density. Are 8" hard > sectored floppies compatible with these? No, RX01 (and RX02) are soft-sectored. Soft-sectored disks have one index hole punched near the centre, and an optical sensor detects this once per revolution, indicating the logical start-of-track. Hard-sectored disks have one hole per sector, and the sensor detects these to indicate start-of-sector; the first sector is distinguished because there's an extra hole (the index hole) punched halfway between two sector holes. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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Data I/O device pinout codes

by aek＠spies.com

"29B" is the base programmer, you need to know what programming adapter you have. Unipak 2 or 2B is the most common but doesn't support some of the older parts. Select codes can be found at http://www.geocities.com/jkh9081/dataIO/ or on Data I/O's ftp site ftp://ftp.dataio.com/device_lists/_archive/

21 years, 10 months

5
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paper tape replacement

by dwight.elvey＠amd.com

>From: "Jay West" <jwest(a)classiccmp.org> >> >http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=11805&item=381854314… =1 > >Thought some folks might be interested. > >Jay > Hi Jay Although, it is an interesting machine at $10, it isn't quite so interesting at $125. I do most the same thing now with my laptop when working on my Nicolet. I connect the serial to the Nicolet. When I actually have to read a punch tape, I made a cable to connect the laptop's parallel port ( bi-directional ) to a high speed tape reader I have. I keep the tape images in files and can even write to floppies, just like the machine on eBay ( wow! ). Dwight

21 years, 10 months

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Hans Franke, are you listening?

by toresbe＠ifi.uio.no

I'm mailing this to CCTECH as I can't find Hans Franke's e-mail Hello, I was just googling about the Siemens 6-611 you offered to help me out with not too long ago, as somehow I missed your previous reply. Yes! Anything you have on this machine is most definitely interesting. Please tell me if you have anything at all, both docs and software are fun. (meanwhile, I'm STILL looking for the damned female-female DB9 cable for the terminal) I'll send pics when I get my camera back. Anyway, more info about the system. It's got a male DB9 port labeled Display Unit, which I'm assuming should lead to the CRT I've got here. It's got a port labeled Channel A, V.24, and one labeled Channel B, Adapter 1, and with a ballpen someone has written "current loop". There are seven more male DB9s, labeled Optional Cluster Terminal Connectors, seven in all. Now, the interesting thing is that the mainboard, and most of the circuit boards, are labelled Tandberg Data! (Tandberg Data is a Norwegian computer manufacturer, making fairly popular X terminals, and serial terminals too. Its serial number is 901504, It has a TAN number, 7001, which I don't know what means, but you probably do :) It has a diskette drive, 8". On the back of the unit is a list of options, including the disk drive, a Character Generator, a Cluster Interface Option, a Option Boards Mounting Kit. If their TANs or any other numbers matter, please mail me, and I'll give them to you. Additionally, the CRT has video in and out, are these PAL TV compatible? Thanks in advance!! (And, to the list, sorry for this, but I'm really eager to get this beautiful beast working :) ) -tsb "If it ain't broke, take it apart and find out why."

21 years, 10 months

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Computer flooring/flooding/water in computer rooms

by mmcfadden＠cmh.edu

I will now tell you the most unusual water problem we ever had in out computer room. The drop ceiling above out Printronix and Versatec line printers collapsed on them. It dumped water and grunge all over the printers. The hammers on the Printronix rusted and we had to replace them. You ask how the water got in the ceiling well here is the story. Our computer center was on the 10th floor of an 11 story office building in the Northwest Plaza shopping center in Saint Louis. For Christmas the shopping center managers decided to install a very large Santa Claus on the roof, flown in by helicopter in 2 sections and assembled on the roof. The Santa was to be held up by a metal frame bolted to the roof. The installation crew drilled holes in the roof, missed the beam and punched right through the roof. They just shoved a little gravel over the incorrect hole and drilled a new one. The next melting snow and rain filled up the roof and drained through the hole into one of the unoccupied 11th floor offices above our computer room and then leaked down through the floor into the drop ceiling. The wet ceiling was too heavy and crashed down onto the printers. BTW After Christmas the Santa was lain down on the roof and covered by a tarp. You could see the tips of the boots under the tarp all year. Mike

21 years, 10 months

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17 Apple Powerbooks wanted (UK)

by julesrichardsonuk＠yahoo.co.uk

Any UK collectors of newer Apple stuff out there? Someone from a TV company contacted Bletchley museum earlier wanting to hire 17 Apple Powerbooks to film. All of our stuff tends to be significantly older :-) Sounds like the machines don't need to be runners. If anyone does have a few (even if they don't have 17!) and is interested then shout and I can put you in touch. cheers Jules

21 years, 10 months

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DEC VT102 terminal question?

by pete＠dunnington.u-net.com

On Jun 2, 23:53, Huw Davies wrote: > On 4 May 2004, at 23:15, Jay West wrote: > > > I have a DEC VT102 terminal that I got some time ago from a > > listmember. On > > the right of the keyboard where the numeric keypad is, the keys don't > > match > > the color of the other keys on the keyboard. The upper left key in the > > keypad is gold, and the other keys on the keypad are different colors > > - red, > > blue, white - and have editing words on them, I think words like "left, > > copy, print", something like that. > Sounds like a WPS or WPS+ keypad. It's been a long while since I've > seen one but it sounds right! It was a moderately common option, used by several editors. For example, ED and EDT for RSX-11 used those keys; the GOLD key in particular labelled as such on editor reference cards and is used by a variety of software. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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Computer flooring/flooding/water in computer rooms

by pete＠dunnington.u-net.com

On May 28, 12:57, McFadden, Mike wrote: > Flooded computer room We had a similar problem, thanks to our aircon, a year or so ago. Our big aircon is one that has dehumidifies the air, then cools it, and finally rehumidifies it if necessary so it's not too dry (which encourages static buildup). Well, a valve jammed, and the rehumidifier section filled up with water and overflowed. We ended up with an inch-deep pool of water over about half the floor -- not as serious as Mike's incident, but still a bit messy. And dirty. What alerted us to it initially was the smell of dampness :-( -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

4
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HP 7906 drive lives again & stuff

by keld.soerensen＠os.dk

Hi Jay ! Years back I scrapped a 7906 and I have some components left - do you have some documentation on the hardware. I want to know something about the wires on the main transformer. Regards Keld S?rensen Denmark

21 years, 10 months

4
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Qwint Systems?

by sloboyko＠yahoo.com

Can anybody tell me anything about these? Found a little something I thought was word processor, but it actually looks like some sort of serial terminal using 80 column paper for output vs. a CRT. Very compact, kind of a neat looking little package. Googling has come up dry..... What you probably have is a Qwint 740 or 780 (I'd have to see it to know what model). It was the smallest plain paper teletype replacement probably ever built. I worked there at Qwint (formerly Martin Research of 1970's MIKE 8008/8080 fame) between '84-85; I wrote the service manual (which I think I still have). It's a very sophisticated machine-don't let the size or apparent simplicity fool you; it uses a Z-80 with bank switching! It is possible to reink the ink cartridge via the old WD-40 trick; don't lose it because they are made of unobtanium. The company was bought by Zebra (who makes the thermal bar code printers), mostly for IP (intellectual property). ===== -Steve Loboyko Incredible wisdom actually found in a commerical fortune cookie: "When small men cast long shadows, then it is very late in the day." Website: http://juliepalooza.8m.com/sl __________________________________ Do you Yahoo!? Yahoo! Domains – Claim yours for only $14.70/year http://smallbusiness.promotions.yahoo.com/offer

21 years, 10 months

3
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486 dies terrible death

by MTPro＠aol.com

In a message dated 6/2/2004 8:16:00 PM Eastern Daylight Time, cctalk-request(a)classiccmp.org writes: My voicemail PC died a pretty terrible death this morning. Poor 486; your assignment, if you choose to take it - create a new voicemail machine with an 8-bit computer. I mean c'mon, your the main vintage computer representative for our hobby! Plus, Sellam, add online access to check your messages too, that would be nice. Oh, and only use Cobol or Fortran to program it! 8-bit computers don't need no stinkin' fans! Thank you. Just harshin' ya! Best, David, classiccomputing.com

21 years, 10 months

2
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3M DC100 Tapes

by classiccmp＠vintage-computer.com

Phuong Tri writes: ---- would you, in your vast collection, have any 3M DC100 tapes that are for sale? or would you know of any source where i might find some? Unfortunately our computer only works on 3m tapes... we have tried other and have been unsuccessful. even better would be if anyone had these tapes new in an old closet that they wanted to sell. Thanks, Phuong Tri ---- Please contact Phuong directly at phuong.tri.NOSPAM(a)ottoinstrument.NOSPAM.com if you can help. Remove the obvious from the email address. Thanks! Erik S. Klein www.vintage-computer.com <http://www.vintage-computer.com/> www.vintage-computer.com/vcforum The Vintage Computer Forum

21 years, 10 months

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OT: CRT EMI Shield

by cb＠mythtech.net

>I wonder if degaussing the target monitor (one with interference), >while the source monitor (creating the interference) was operating, would >help? > >Some monitors have a built in degaussing function. >Others do it when they power up. Nope, doesn't seem to make a difference. (one of the two distorted monitors has a degaus button, the other I believe has a built in degauser and I tried power cycling that one. Neither saw any change). >The above all assumes a magnetic interference. >If it's localized to one, or a few, spots on the screen, with color shifts, >that's likely what it is. What happens is, the image on the monitor on the bottom starts wobbling and bouncing. And the scan lines become very pronounced. The monitor to the side flickers and wobbles a bit. This only happens when the top monitor is turned on and "charged" (when I first turn it on, there is about a 1 second pause before you hear the CRT charge, during that pause there is no distortion). I can remove the distortion by simply turning off the top monitor. Also, moving it about a foot away gets rid of it as well (so worst case, I can install a shelf on the wall a little higher up. Right now its sitting on a plastic monitor shelf that rests directly on top of the monitor below). I'll see if I can try a newer, possibly better monitor as the top one and see if the problem goes away (the one I picked to use is an older monitor. Since it will not be used too heavily, I didn't want to sacrifice a good monitor... but I'd rather have no problems then save on a good monitor) >Of course that gets me to thinking of TEMPEST and someone reading your >monitor from out in the street. :-) Humm... well, unless they are turning on and off their equipment at the exact same time I turn on and off the top monitor... it seems unlikely. Of course, if the screens are seeing this much distortion, I'm curious what the 4 CRTs pointing at my chair is doing to my brain! -chris <http://www.mythtech.net>

21 years, 10 months

2
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Terminet30

by RMaxwell＠atlantissi.com

Brian, I can give the 30 a home, and I work in SE Brampton, so a pick-up should be fairly straightforward to arrange. Contact me off-list to discuss details. The Terminet 30 looks much more (late 70's?) modern than the old Terminet 300 I used as a letter-quality printer back in 1982-3. It was big and heavy (and old even then), with a rack of cards attached to the back containing the logic. I saw a fellow working on one with the lid up - wearing a tie. Never do that. Fortunately, the band drive had stall detection, or it could have been serious. An old German physics prof I had for a "reports" course was reputed to dislike word processors, and the previous years' class insisted that laser printouts from the Computing Center cost them marks... Terminet 300 output tends to look a little uneven, since hammer-belt timing is slightly variable, character fingers are bendable, and each of the (113 on the T300) hammers hits slightly differently - so output LOOKed like it came from a tired old manual typewriter. Don't know if it was that, or my sterling prose, but I got 48/50 on that course. Ah, memories. Regards, Bob Maxwell > -----Original Message----- > From: "Brian Mahoney" <brianmahoney(a)look.ca> > Subject: Terminet30 - Actually, it looks like this !(was general > electric terminal?) > > It's in Scarborough. If anyone wants it they can have it for > $21.60 Canadian > plus whatever shipping YOU can arrange. Or pick it up, I'll > help you to the > car. > > Seriously, if no one wants it, what the hell do I do with it? > I collect > portables! And what vintage is it? 60's? Later? > > Brian Mahoney >

21 years, 10 months

2
1
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formatting an RD5x

by edward＠groenenberg.net

Hi all, I tried to format an RD54 using my xxdp+ diag pack and guess what the ZRQCH0.bin is not on it arghhhhh. Didn't somebody not mentioned some time ago that an ARxxxx routine would work too? Anybody can help me? a floppy with the diag only would be great! Thanks, Ed --

21 years, 10 months

2
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Boot disk for Philips P2000C?

by m.ballarini＠iri.tudelft.nl

Hi! I have the same problem. did you happen to get a boot disk? thanks and cheers, mirko

21 years, 10 months

3
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AT&T General Purpose Sychronous AT/Enhanced card

by cb＠mythtech.net

>Hi Chris, I work for Harrison School Dist in Colorado Springs, CO >(hsd2.org). I saw the message saying you have an > AT&T GPSC-AT/E serial card to give away. If you still have it I could >use it on our voice mail server and I will pay the postage. Let me know >your address and I will send money. Thanks, Fred I'd love to give it to you, but alas, it is long gone. Sorry :-( -chris <http://www.mythtech.net>

21 years, 10 months

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AT&T General Purpose Sychronous AT/Enhanced card

by fpults＠harrison.k12.co.us

Hi Chris, I work for Harrison School Dist in Colorado Springs, CO (hsd2.org). I saw the message saying you have an AT&T GPSC-AT/E serial card to give away. If you still have it I could use it on our voice mail server and I will pay the postage. Let me know your address and I will send money. Thanks, Fred

21 years, 10 months

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PDP-11/60 and HP 9836 available in Houston

by mtapley＠swri.edu

David, I'm also trying to reach you regarding the PDP-11/60. Please email or call me or Ethan at your convenience. -- - Mark 210-522-6025, page 888-733-0967

21 years, 10 months

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Freebies in Socal: Portable Terminals

by elmo＠mminternet.com

Greetings. I have 5 portable terminals available for a collector. They are all in clean/good shape and come with accessories, and a couple have fitted cases. Two have customized/OEM keyboards with vivid colors. The lot includes: TI 707/1200 TI 745 TI 703 and a couple LCD models, one I think is a Panasonic. Local pickup preferred, must take all. Regards, Eliot

21 years, 10 months

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Teletype questions

by dwight.elvey＠amd.com

Hi Most are current loop but they has RS-232 and MODEM as well. Dwight >From: "Guy Sotomayor" <ggs(a)shiresoft.com> > >Last night I was trying to figure out the interface on one of my >teletypes (KSR-33). I was very frustrated by the Teletype manuals in >that they don't (at least mine don't) talk about the various interface >modules in any detail. > >Is there documentation on these beasts? Specifically how to hook them >up to other equipment (like computers)? > >However in the process, I discovered that the particular teletype I was >working on has the EIA RS232C interface. And no this wasn't some bodged >together thing by some previous owner. It was all Teletype components. >I was *really* blown away by this! To verify that this is what it was I >hooked it up to a (sacrificial) RS-232 terminal and what was typed on >one showed up on the other! It also verified that the teletype was >indeed working. >-- > >TTFN - Guy > >

21 years, 10 months

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Teletype questions

by ggs＠shiresoft.com

Last night I was trying to figure out the interface on one of my teletypes (KSR-33). I was very frustrated by the Teletype manuals in that they don't (at least mine don't) talk about the various interface modules in any detail. Is there documentation on these beasts? Specifically how to hook them up to other equipment (like computers)? However in the process, I discovered that the particular teletype I was working on has the EIA RS232C interface. And no this wasn't some bodged together thing by some previous owner. It was all Teletype components. I was *really* blown away by this! To verify that this is what it was I hooked it up to a (sacrificial) RS-232 terminal and what was typed on one showed up on the other! It also verified that the teletype was indeed working. -- TTFN - Guy

21 years, 10 months

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8" hard sectored floppies

by dwight.elvey＠amd.com

>From: "Damien Cymbal" <d_cymbal(a)hotmail.com> > >Are hard sectored 8" floppies of any use to anyone? I've got several boxes of still shrink-wrapped SSSD hard sector disks. I've sold a couple boxes on epay, but action on them was lower than I'd imagined. Some folks who resell alot of 8" floppies told me "good luck" because hard sectored just don't sell. > >I've seen new soft sectored disks advertised online for fairly hefty prices (don't know if they are selling at that price or not). What systems made use of these? Any that I might own or want to own some day that it'd be worth me holding on to these if I can't sell them for a price worth it to drive to the post office and ship them? > Hi Damien How many sectors are they? I have use for 32 sectored disk. I just don't watch eBay often enough to catch the sale of these. Dwight

21 years, 10 months

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OT: FS - HP DLTtape IIIXT 30 GB

by marvin＠rain.org

I am selling an HP DLTtape IIIXT 30 GB data cartridge, P/N C5141A for the Catalina Amateur Radio Assoc (CARA.) It is new and still in the shrinkwrap; $15.00 including mailing.

21 years, 10 months

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PDP-8 stuff

by ggs＠shiresoft.com

I'm looking for information on the expansion boxes for the "older" PDP-8's (ie 8/I and 8/L). Specifically: BA08A BM12L MM8I Ideally I'd like to find user's manuals and maintenance manuals for them, but at this point anything would be useful. Of course, I'll also re-iterate my call for information on the DF32D also. Thanks. -- TTFN - Guy

21 years, 10 months

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DZ11 pinout?

by squidster＠techie.com

Hello list, My DZ11 arrived cableless, so just a simple query: Anyone out there has the pinout for the 50-pin connector on the DZ11 itself? The manual make no mention of any sort of wiring diagram. I'm planning to make an octopus cable myself with the info.. Thanks. /wai-sun -- ___________________________________________________________ Sign-up for Ads Free at Mail.com http://promo.mail.com/adsfreejump.htm

21 years, 10 months

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HP 4952A Software

by Rupert.Bennett-Kirkham＠bmw.de

Dear Richard, I have an HP 4952A that I am trying to coax back into life. It would be very useful to have the software that you have mentioned as alas the disks have disappeared. A point that may interest you is a note in the operating manual (at least it was still there), section 12-21 concerning the copying of disks. {Note: Some software applications are not reproducible. The will appear to be copied, but will be non-executeable. When you try to load this type of application, the HP4952A will display the error message 'Application Denied'.} This seems to explain the problem that you encountered. Anyway I would like to have a go at persuading the the analyser to accept these files. It may be possible to open up these files and "hand input" them into the analyser and then save them to disk for later use. As the saying goes: "Nothing ventured, nothing gained". Regards, Rupert.

21 years, 10 months

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GE Terminet terminal

by jpl15＠panix.com

What is being described is almost surely a Terminet - an ASCII teleprinter using a continuous rotating band with upright 'fingers' containing the individual characters - these passed in front of 72 hammers, and behind them were the ribbon and paper respectively. There were three complete sets of character fingers, thus cutting the 'latency' of the band in thirds. When the right character arrived at the correct position on the page, the opposing hammer fired and imprinted it. The fingers were easily removable allowing for alternate fonts and character sets. The two I had were fitted with the dual cassette units (used instead of paper tape, (but employing very much the same 'algosithm'), and I used them in the very early 80s with a 300 Baud Novation JCat modem, to access Compuserve and a couple of other primitive on-line services, as well as BBSes. The unit is well worth saving - you don't say where you are, but they are rare now and I'm sure someone will be very happy to make it go away for you... Cheers John

21 years, 10 months

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DEC VT102 terminal question?

by jwest＠classiccmp.org

I have a DEC VT102 terminal that I got some time ago from a listmember. On the right of the keyboard where the numeric keypad is, the keys don't match the color of the other keys on the keyboard. The upper left key in the keypad is gold, and the other keys on the keypad are different colors - red, blue, white - and have editing words on them, I think words like "left, copy, print", something like that. My question is - is it likely that someone scavenged keys from another non-vt100 keyboard to replace missing keys, or was this some option used with some word processing software? If the later, I'm happy I have something unusual. If the former, I am going to yank those keycaps off and scavenge the "correct" keys from one of the other VT100's I'm going to junk. Anyone know the answer? Thanks! Jay West --- [This E-mail scanned for viruses by Declude Virus]

21 years, 10 months

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DZ11 pinout?

by pete＠dunnington.u-net.com

On Jun 1, 15:59, wai-sun chia wrote: > Hello list, > My DZ11 arrived cableless, so just a simple query: > > Anyone out there has the pinout for the 50-pin connector on the DZ11 itself? > The manual make no mention of any sort of wiring diagram. > > I'm planning to make an octopus cable myself with the info.. This is for a DZ11-A/B/E, M7819. The 20mA versions (DZ11-C/D/F, M7814) are different. The information isn't in either the User Manual or the Technical Manual, so I resorted to reading circuit diagrams from the module assembly microfiche. It's not very clear in parts, but the pinout is: Chan. TxD RxD SG DTR DCD RI 0 19 21 22 1 2 20 1 23 25 26 3 4 24 2 27 29 30 5 6 28 3 31 33 34 7 8 32 4 35 37 38 9 10 36 5 39 41 42 11 12 40 6 43 45 46 13 14 44 7 47 49 50 15 16 48 Pins 17 and 18 are also ground. On the DB25 end, TxD is pin 2, RxD is pin 3, SG is pin 7, DTR is pin 20, DCD is pin 8, RI is pin 22. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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Washington DC classic computing resources/museums?

by jbmcb＠hotmail.com

Yep, you're probably right. I couldn't find my pictures to confirm, and if I remember right it had the odd pinstriping of the PDP-15 series. The "Straight-8" is sweet, looks like it's a sci-fi prop, as if it should be driving the Tardis or something :) >From: Ethan Dicks <dickset(a)amanda.spole.gov> >Reply-To: "General Discussion: On-Topic and Off-Topic >Posts"<cctalk(a)classiccmp.org> >To: "General Discussion: On-Topic and Off-Topic Posts" ><cctalk(a)classiccmp.org> >Subject: Re: Washington DC classic computing resources/museums? >Date: Tue, 1 Jun 2004 22:17:53 +0000 > >If it's the large machine in the corner, off the main path (just past the >Straight-8), that should be a PDP-15. It's definitely not 16-bits. > >-ethan _________________________________________________________________ MSN 9 Dial-up Internet Access fights spam and pop-ups – now 3 months FREE! http://join.msn.click-url.com/go/onm00200361ave/direct/01/

21 years, 10 months

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Needed "data processing magazine" also any of same topic are from 50's 60's 70's such as "Datamation", ACM conference proceedings, Early AFIPS, and others.

by esharpe＠uswest.net

Needed "data processing magazine" also any of same topic are from 50's 60's 70's such as "Datamation", ACM conference proceedings, Early AFIPS, and others. Also have a requirement for any of the IRE - IEEE publications on early computing. Please advise All eras are fine prefer bound but... loose OK too. address is below. Thanks Ed Sharpe, Archivist for SMECC - - See the Museum's Web Site at www.smecc.org Southwest Museum of Engineering, Communications and Computation Coury House / SMECC Library 5802 W. Palmaire Ave. Phone 623-435-1522 Glendale Az 85301 USA

21 years, 10 months

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Atlantic Research Corp. "Interview 40B"

by billdeg＠degnanco.com

Can anyone identify the purpose of an Atlantic Research Corportation (ARC) Interview 40B Data Analyzer? c. 1984. Is this a tester for cable, modem, printer, output or pin outs? Anyone have a manual? It appears to work, in that it powers up and you can get to the menu I have reproducted below. Here is a picture I found on the internet. http://www.torontosurplus.com/air/DATA2997. JPG Here is the menu: **MENU SELECTIONS** 0 PROTOCOL SETUP 1 TRIGGER 1 2 TRIGGER 2 3 TRIGGER 3 5 TIMEOUT/INTERFACE/PRINTER 6 TRANSMIT MODE 7 INTERACTIVE TEST 8 TEST LIBRARY 9 LIBRARY UTILITIES A REMOTE TRANSFER B BCC PARAMETERS E CODE TRANSLATE CHART F DATA BUFFER -- E N D --

21 years, 10 months

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selectric consoles

by akb+lists.cctech＠imap1.mirror.to

I think Selectrics are pretty cool; I'd kinda like one I could use as a printer, and if it could be a full serial tty that would be even cooler. So far, I've found that IBM made the 1050 and the 2741 selectric-based console terminals, both of which were large, heavy, and not very reliable. Did IBM ever do any better, like say a serial module for a selectric III? I know some of the Wheelwriter typewriters had serial ports, but the golf ball type elements are just too much cooler. I found some web pages that talk about Trendata ttys based on selectrics, but very little hard info; anyone here know anything about them? I also remember the ByteWriter and similar contraptions that strapped a bunch of solenoids on top of a typewriter keyboard, but while entertainingly kludgy, that lacks a certain degree of elegance. --akb

21 years, 10 months

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Interesting Tektronix site

by rigdonj＠cfl.rr.com

<http://www.reprise.com/host/tektronix/home/default.asp> Joe

21 years, 10 months

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OT: CRT EMI Shield

by melamy＠earthlink.net

if you need metal or plastics in small quanties, go to http://www.onlinemetals.com I have deallt with them before and they do a good job. best regards, Steve Thatcher -----Original Message----- From: Pete Turnbull <pete(a)dunnington.u-net.com> Sent: Jun 1, 2004 8:27 PM To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Subject: Re: OT: CRT EMI Shield On Jun 1, 22:23, Ethan Dicks wrote: > Speaking of which... does anyone know where I could order a few lengths > of 2" wide x 1/2" or 3/8" thick aluminum bar? It would have to be someplace > that could send it either directly to me to me via the Post Office; or to my > boss in Madison, WI, via whatever means, so that he could bring it to me > when he arrives in October. Places that supply model engineers would be able to do that. I use ones in the UK so I can't suggest specifics, but a Google search should find a few. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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OT: CRT EMI Shield

by pete＠dunnington.u-net.com

On Jun 1, 22:23, Ethan Dicks wrote: > Speaking of which... does anyone know where I could order a few lengths > of 2" wide x 1/2" or 3/8" thick aluminum bar? It would have to be someplace > that could send it either directly to me to me via the Post Office; or to my > boss in Madison, WI, via whatever means, so that he could bring it to me > when he arrives in October. Places that supply model engineers would be able to do that. I use ones in the UK so I can't suggest specifics, but a Google search should find a few. -- Pete Peter Turnbull Network Manager University of York

21 years, 10 months

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