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

by cmcmanis＠mcmanis.com

I've heard its possible to "upgrade" a uVAX II to a uVAX III by replacing the KA-630 with the KA-650 CPU. Now I've looked at a KA-650 and it has a metal cover over its end and a small RJ-xx like plug in it. The KA-630 has two IDC connectors that go to the 630CNF console plug in the BA123 world box. Do I also need a conversion kit for the KA-650 or is the CPU with connectors hiding behind this metal facade? --Chuck

27 years, 2 months

3
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KA650 & uVAX

by emu＠ecubics.com

Hi, -----Original Message----- From: Chuck McManis <cmcmanis(a)mcmanis.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Tuesday, May 04, 1999 11:16 PM Subject: KA650 & uVAX >I've heard its possible to "upgrade" a uVAX II to a uVAX III by replacing >the KA-630 with the KA-650 CPU. Now I've looked at a KA-650 and it has a >metal cover over its end and a small RJ-xx like plug in it. The KA-630 has >two IDC connectors that go to the 630CNF console plug in the BA123 world >box. If you try to use the BA123 again, simply use the 630 cnf console. If you remove the metal cover from the ka650, you see the flat ribbon connectors for it. I use here some of my KA650 in BA23 & BA123 enclosures. > Do I also need a conversion kit for the KA-650 or is the CPU with >connectors hiding behind this metal facade? No. Have fun, emanuel

27 years, 2 months

1
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Emulex board question

by emu＠ecubics.com

Hi, -----Original Message----- From: Pete Turnbull <pete(a)dunnington.u-net.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Tuesday, May 04, 1999 9:16 PM Subject: Re: Emulex board question >The boards are identical. The difference is in the firmware. If Emanuel's >information about an SC02/L is correct, then there at least *four* >versions, because: > > SC02/A RP11 emulation, compatible with RP02/3 disks > SC02/B RH11 emulation, compatible with RM02/3 disks > SC02/C RK611 emulation, compatible with RK06/7 disks > >These are the only ones I've seen in Emulex docs. There are similar WOW ;-)) >However, the original enquiry was about a SCO210101-CXL, which is an >SC02/C. >Dan was correct. I can live with that ;-)) So i always had a SC02/C and thought it emulates Rl02/RL03, so i never put disks on it :-(( cheers, emanuel

27 years, 2 months

1
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Emulex board question

by pete＠dunnington.u-net.com

On May 4, 8:34, emanuel stiebler wrote: > Correction, directly from the manual. RL01 or RL02 emulation ;-)) > > But serious, there are two version of the SC02 board. The SC02/L emulates > the Rl01/Rl02 disks, and the SC02/C emulates the RK06/RK07 disks. > > Looks to me, that the big difference is in software, because both of these > boards look very similar. The boards are identical. The difference is in the firmware. If Emanuel's information about an SC02/L is correct, then there at least *four* versions, because: SC02/A RP11 emulation, compatible with RP02/3 disks SC02/B RH11 emulation, compatible with RM02/3 disks SC02/C RK611 emulation, compatible with RK06/7 disks These are the only ones I've seen in Emulex docs. There are similar versions of the SC03, which also has a /MS variant, which supports MSCP. I assume there are similar variants of the SC12, which is the Unibus version. However, the original enquiry was about a SCO210101-CXL, which is an SC02/C. Dan was correct. -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 2 months

1
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Can you identify these cards?

by rigdonj＠intellistar.net

Hi all, I went scrounging today and found some interesting cards. A picture of the first one is at "http://www.intellistar.net/~rigdonj/card1.jpg" and a picture of the second is at "http://www.intellistar.net/~rigdonj/card2.jpg". The first one is interesting because it has a list on the right side that appears to be a list of memory locations and op codes. It's hard to see in the photo but the first column is labeled CNT. (count?). Most of the ICs are dated 1972. The only other markings on the card is "TERADYNE A 794" and "Made in USA". The second one is a core memory board that I *think* may be for a Data General computer. I picked up several of these and they're all made by Dataram Corporation and appear to date from 1972. Their part number is 3010290. I took the cover off of one. Man, the cores in these are tiny! Can anyone identify them? Joe

27 years, 2 months

10
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PDP11 Plessey disk drive info needed

by Jgzabol＠aol.com

In einer eMail vom 03.05.99 21:14:20, schreibt Tony: << > > I would like to connect a Plessey disk drive to a PDP11 RK11-D controller. > > The drive has a fixed platter and a removable platter, compatible to RK05 I > believe, and these numbers on it: > Plessey 3468-0231 > PMDD/11B > 700540-200217D I saw (and did minor repair on) one of these about 8 years ago. It wasn't mine, and I never saw a service manual :-( > > It has a 42 pin MRA 42 S mating connector, and same with a terminator. I > believe the 42 pin should be a Drive Bus, to be connected with standard > Unibus cable to controller slot 2A/2B. I seem to remember that the connector is similar (maybe identical) to the Diablo Model 30 connector, which I do have the pinout of. I can post that if it would help. One thing I certainly remember is that it used 1-of-n selects (like an RK02/Diablo model 30) and that it could only be linked directly to an RK11-C controller. There was a Plessey paddleboard that went into the drive connector slot on an RK11-D and had a decoder chip (at least, maybe some other simple logic) on it to sort this out. -tony >> I would certainly appreciate the Diablo pinout - if the pin layout is the same, I would expect the signals to be the same , at least something easier to check stan starting from nothing ! Thanks John

27 years, 2 months

2
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Inquiry

by edick＠idcomm.com

If I were in your position, I'd try to get mechanically good cassettes rather than worrying about acoustically good tape. What's most likely to happen is that, over time cassette tape will lose chunks of emulsion from its mylar backing, or the mechanical parts will break or jam causing damage to the tape. The audio demands for computer use are not very stringent. Dick -----Original Message----- From: Gene Ehrich <gene(a)ehrich.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Monday, May 03, 1999 6:03 PM Subject: Re: Inquiry >At 11:58 PM 4/29/99 -0500, you wrote: >> >> I have a lot of the kid's computers, (Atari, Commodore, CoCo, etc), which >> I am trying to keep alive. Does anyone know if I can substitute high >> quality music tapes in place of computer tapes? Or where I can still >> find computer cassette tapes for sale? >> >> Stephanie > > > >I would reply to Stephanie but she did not give her e-mail address. > >I have some for sale on my web site. > > > > > > gene@ehrich > http://www.voicenet.com/~generic >Computer & Video Game Garage Sale > >Gene Ehrich >PO Box 209 >Marlton NJ >08053-0209

27 years, 2 months

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HP-7900A Disc Drives

by lselinsk＠emh1.lead.army.mil

We have 7900's (about 20) in use on test systems still. We also have 7905's and 7906's. I maintain them. The platter package that goes in the 7900 is not the same as for the 7905/6 models. The outside casing looks the same, but the platter for the 7905/6 is about twice as thick as the one for the 7900 drive. Plus, the disk pack for the 7900 Drive has 24 hard sectors as indicated on the bottom of the platter. The 7905/6 disc pack has one notch on the center hub which is used for a soft sector configuration. Do not put the 7900 disc pack in the 7905/6 or vice versa. Michael Morar PS - I need some info on the A2 board of the HP-7900A disc drive. The A2 board has special solder terminals mounted on the board for connectors J1 and J4 thru J7. I need to find out who makes them. HP no longer has any info on the drive, and our service manual does not have a break down of these pins.

27 years, 2 months

1
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Saw at goodwill

by SUPRDAVE＠aol.com

In a message dated 99-05-04 10:59:32 EDT, you write: > I always thought that the black apples were the correct color. What > exactly is the significance of the black case??? it's just a Bell+Howell version of the apple with some minor changes to it. functionally identical.

27 years, 2 months

1
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Saw at goodwill

by jlwest＠tseinc.com

You wrote... >My old computer class was taught on two model 33's (to a HP2000) and a >black Apple II. And just where is that HP2000 today????? <grin> Jay West

27 years, 2 months

2
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Pictures of my damaged core

by ethan_dicks＠yahoo.com

I finally borrowed a digital camera to photograph the damage to my PDP-8/L parity core stack. The damage is more extensive than I remember. There are the two main areas, but in addition, there are single bits that are missing here and there over the entire area. I do not think it is possible to repair this board without rewiring at least the four core mats on this PCB in toto... that's 128x128 cores for the folks keeping score at home. The wire density is approx 32 per inch. Much work. I won't be doing this anytime soon. Here's some photos of that stack I got back in '82 with a partial PDP-8/L http://www.infinet.com/~erd/retrcomputing/pdp8/pix/coreassy.jpg - external view http://www.infinet.com/~erd/retrcomputing/pdp8/pix/coremat1.jpg - one bad mat http://www.infinet.com/~erd/retrcomputing/pdp8/pix/coremat2.jpg - another one Thanks for all the responses to my original questions. I'm somewhat gratified to see that the can of worms that this thread opened has been strangely on topic. I'm especially interested in hearing the results of the #2 nut core, if it's suitable for display purposes. -ethan _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

27 years, 2 months

2
1
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Emulex board question

by emu＠ecubics.com

Hi again, -----Original Message----- From: Daniel T. Burrows <danburrows(a)mindspring.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Tuesday, May 04, 1999 8:09 AM Subject: Re: Emulex board question > >>>60-pin and two 26-pin (not 36) connectors. There are several versions of >>>the firmware for SC02s, emulating different DEC drives. >> >>Emulates RL01 & RL02, or better said the RLV11/RLV12 controller. On bigger >>disks, the controller maps up to four logcal units per disk > > >Correction - directly from the manual. RK06 or RK07 emulation RK611 Correction, directly from the manual. RL01 or RL02 emulation ;-)) But serious, there are two version of the SC02 board. The SC02/L emulates the Rl01/Rl02 disks, and the SC02/C emulates the RK06/RK07 disks. Looks to me, that the big difference is in software, because both of these boards look very similar. cheers, emanuel

27 years, 2 months

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Emulex board question

by CLASSICCMP＠trailing-edge.com

>I have used 14" (RA-81-sized) disks like the Fujitsu Eagle Well, technically the Eagle is a 10.5" disk. Other Fujitsus, like the 2284, are really 14" (and they have a nice transparent cover over the HDA so you can see the disks spin and the heads seek...) > and have seen 5.25" >disks, but never used them. Most 5.25" SMD drives are rather modern and have data rates too high for the older Emulex (and other brand) SMD controllers. Newer Emulex SMD controllers, like the QD33 and QD34, don't have a problem with the high-data-rate SMD drives. Tim.

27 years, 2 months

1
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Emulex board question

by ethan_dicks＠yahoo.com

--- emanuel stiebler <emu(a)ecubics.com> wrote: > >On May 3, 20:49, John Lawson wrote: > > > >> Anyway.. this particular Emulex Unibus board has the model number > >> SCO210101-CXL sub number 4039 H. The abovementioned website lists > >> a part number of SCO2 as a "Unibus Disk Controller" > > Nope, it is a Q-Bus ... > > think you mean one > >60-pin and two 26-pin (not 36) connectors. There are several versions of > >the firmware for SC02s, emulating different DEC drives. > > Emulates RL01 & RL02, or better said the RLV11/RLV12 controller. On bigger > disks, the controller maps up to four logcal units per disk > > BTW, if anybody know where to get some of the disks, that fits to this > controller, i would be interested ... The disks you are looking for are SMD disks - 60 pin digital cable for all drives, 26-pin data cable for each drive. Yours must support two physical units. I have used 14" (RA-81-sized) disks like the Fujitsu Eagle and have seen 5.25" disks, but never used them. I know that SMD disks are available in the 600Mb range. I don't know how small they get. I can't imagine how you'd map hundreds of megabytes into several dozen RL02 images, but in the interest of compatibility, I guess they'd have to do it. On VAXen and PDP-11's, I've always used a Systems Industries 9900 controller to attach Fuji Eagles (and some other sizes) to the Massbus. I have an SI Q-bus controller that appears to talk to the 9900 (dual 40-pin connectors), but I've never used it. I have KDA-50's now (and wish I had docs for the CS-21 SCSI card). Bottom line - SMD disks are hard to find, but they are out there. -ethan _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

27 years, 2 months

1
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Emulex board question

by danburrows＠mindspring.com

>>60-pin and two 26-pin (not 36) connectors. There are several versions of >>the firmware for SC02s, emulating different DEC drives. > >Emulates RL01 & RL02, or better said the RLV11/RLV12 controller. On bigger >disks, the controller maps up to four logcal units per disk Correction - directly from the manual. RK06 or RK07 emulation RK611 >BTW, if anybody know where to get some of the disks, that fits to this >controller, I would be interested ... > I have some Ampex drives but they are not worth the shipping.. Look for one of the following males, models and they are directly supported with switch setting info in the manual. Amcodyne, 7110 Ampex, 165 , 165-210, 9160, DFR-932,964,996 Bal BD160 BASF 6173,6173 Century, T28,T302RM CDC 9412,9448-32,9448-64,9448-96,9445, 9457,9730-80,9762,9730-160,9766 Fujitsu 2294,2311,2312 Kennedy 5300-70,7300 Memorex 612-56,612-84 Mitsubishi 2860-25 NEC 2246,2257 Nissei NP30-120 Okidata 3305 Priam 3350,2050,3450,6650,7050,15450 SLI Sheyenne 3 & 4, MV116 Depending on the drive and configuration used determines if it will emulate an RK06 or an RK07. Dan

27 years, 2 months

1
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Emulex board question

by emu＠ecubics.com

Hi, -----Original Message----- From: Pete Turnbull <pete(a)dunnington.u-net.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Tuesday, May 04, 1999 1:21 AM Subject: Re: Emulex board question >On May 3, 20:49, John Lawson wrote: > >> Anyway.. this particular Emulex Unibus board has the model number >> SCO210101-CXL sub number 4039 H. The abovementioned website lists >> a part number of SCO2 as a "Unibus Disk Controller" Nope, it is a Q-Bus ... think you mean one >60-pin and two 26-pin (not 36) connectors. There are several versions of >the firmware for SC02s, emulating different DEC drives. Emulates RL01 & RL02, or better said the RLV11/RLV12 controller. On bigger disks, the controller maps up to four logcal units per disk I don't have my > > http:://rsxbbs.delconet.com/docs/emulex/ > >but the site doesn't seem to be up at the moment so I can't check :-( probably never again :-(( BTW, if anybody know where to get some of the disks, that fits to this controller, i would be interested ... cheers, emanuel

27 years, 2 months

1
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80s video game commercials

by CLASSICCMP＠trailing-edge.com

> <http://www.commercial-archive.com/> is a repository of video clips > of television commercials, including a category of "Classic videogames" > from the 80s, including Atari, Coleco, Mattel and other computers. "Biddy Biddy? Biddy Biddy?" IIRC, this is Martian for "Supper's Ready" during a game of Asteroids. Do I remember correctly? Tim.

27 years, 2 months

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Emulex board question

by danburrows＠mindspring.com

> Anyway.. this particular Emulex Unibus board has the model number >SCO210101-CXL sub number 4039 H. The abovementioned website lists >a part number of SCO2 as a "Unibus Disk Controller" and has a price >of $150, but that's all it says. > > The card has one 60 pin and two 36 pin connectors and has 12 >18-pin proms along the left edge. > > Anyone have any pointers to info on this card? Or even better, >manuals that I can bribe to have copied? > The SC02 is a Qbus SMD controller. The SC12 is the Unibus version. I glancing around I have a bunch of copies of the SC12 but only 1 on the SC02. Contact me off list and we can work something out for getting you a copy. Dan

27 years, 2 months

1
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Emulex board question

by pete＠dunnington.u-net.com

On May 3, 20:49, John Lawson wrote: > Anyway.. this particular Emulex Unibus board has the model number > SCO210101-CXL sub number 4039 H. The abovementioned website lists > a part number of SCO2 as a "Unibus Disk Controller" and has a price > of $150, but that's all it says. > Anyone have any pointers to info on this card? Or even better, > manuals that I can bribe to have copied? This is an SMD drive controller. Is it a hex-height card or a quad? All my SC02s are quad-height Q-Bus controllers. An SC02 can handle two physical SMD drives. BTW, I think you mean one 60-pin and two 26-pin (not 36) connectors. There are several versions of the firmware for SC02s, emulating different DEC drives. I don't have my manuals to hand, but IIRC the -C version emulates RK06/7. Depending on the size of the attached physical drive(s), it will emulate several logical drives. You might find a manual at http:://rsxbbs.delconet.com/docs/emulex/ but the site doesn't seem to be up at the moment so I can't check :-( -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 2 months

1
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PDP11 Plessey disk drive info needed

by Jgzabol＠aol.com

In einer eMail vom 03.05.99 21:26:58, schreiben Sie: << On Mon, 3 May 1999 Jgzabol(a)aol.com wrote: > Hi all, > > I would like to connect a Plessey disk drive to a PDP11 RK11-D controller. > > The drive has a fixed platter and a removable platter, compatible to RK05 I > believe, and these numbers on it: > Plessey 3468-0231 > PMDD/11B > 700540-200217D If this is the one I'm thinking you have, it is more like an RL02, RK05s are front-loading. This is the "take the bottom off the pack, put it on the spindle, and put the bottom over the top of the pack" type... no? No, it is not, this _IS_ the front loading type. But I would believe tat if Plessey made several versions, they all might be rather similar as far as the interface is concerned. If so, I belive I have the service docs on it... must wait to get home tonite to see for sure. I gave a PDP 11/04 system to a Listmember which had a pair of these attached. I have written him offering copies of these dosc but so far only silence has returned to me..... HINT HINT you know who you are. Anyway.. (snip) > > Question: Would anyone have a maintenance manual for the Plessey drive > available ? Short of that, maybe the pinout of the connector, so that I can > make the cable ? I can copy this as well for any others with the drive in question... let me know. I will post the exact model the docs are for this evening. Cheers John >> If there is any relationship between the model you talk about and the model I have, I would certainly appreciate a copy ! regards John

27 years, 2 months

1
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North Star Available

by lwalker＠mail.interlog.com

This just turned up on our T3C site's bulletin board. Contact the sender NOT ME. The DNS is unresolved. If that causes problems reply from the site. Also an Osbourne offering is there. ciao larry NorthStar CPM computer W/Wooden Case Sunday, 02-May-99 20:59:10 Message: 207.71.48.30 writes: Have NORTHSTAR CPM computer in PERFECT condition--been in storage for over 10 years. Purchased approximately 10/81-82 (I think). I am the original buyer and used it for small business accounting for about 4 years. Getting ready to chunk it (clearing out a bunch of old attic-type stuff). Thought I would see if there was any interest in purchasing it before I dump it in to the trash Pat lwalker(a)interlog.com Let us know of your upcoming computer events for our Events Page. t3c(a)xoommail.com Collectors List and info http://members.xoom.com/T3C

27 years, 2 months

1
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Emulex board question

by jpl15＠netcom.com

In taking inventory of my accumulated Unibus and Qbus cards, I have discovered an Emulex Unibus something. Researching it on the Web, I also discovered a place here in SoCal who advertise new, used and refurbed Emulex (and others) adadpters and devices: Fidelity Computing www.ficompinc.com and look under the 'Emulex' listings. There are Unibus SCSI cards for $400.. Anyway.. this particular Emulex Unibus board has the model number SCO210101-CXL sub number 4039 H. The abovementioned website lists a part number of SCO2 as a "Unibus Disk Controller" and has a price of $150, but that's all it says. The card has one 60 pin and two 36 pin connectors and has 12 18-pin proms along the left edge. Anyone have any pointers to info on this card? Or even better, manuals that I can bribe to have copied? I'd send this card in to Emulex, but it's warranty expired in September of 1985. :) Cheers John

27 years, 2 months

1
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80s video game commercials

by CLASSICCMP＠trailing-edge.com

Once upon a midnight dreary, Chuck McManis had spoken clearly: >>At 03:28 PM 5/3/99 -0400, Tim wrote: >>>"Biddy Biddy? Biddy Biddy?" IIRC, this is Martian for "Supper's >>>Ready" during a game of Asteroids. Do I remember correctly? >> >>I believe you are confusing it with the only "dialog" given to the midget >>in the robot suit in the ill fated series "Buck Rogers in the 25th >>Century", which I only watched religously so that I could stare at Darin >>Grey (sp?) in those form fitting jump suits. >Erm, not quite. Twiggy said "Diggy-Diggy," and IIRC, they actually gave him >other non-word tidbits occasionally, but by the time I finally got the >Sci-Fi channel, they've quit playing it. I think you're right. I distinctly remember (must've been 1982 or so) an Atari commercial with a family of aliens playing Asteroids on their 2600 when the mom comes in and tries to get them to eat by saying "Biddy Biddy? Biddy Biddy?". When was the Buck Rogers series originally on? Tim.

27 years, 2 months

1
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scanning in pages

by ethan_dicks＠yahoo.com

> Upon the date 01:45 AM 5/3/99 +0000, Lawrence LeMay said something like: > >I plan to scan in more of those CESI information sheets on boards that > >they made for use in the PDP8/e computer. Is this the best way to do this, > >or is there a better way? > > > > http://www-users.cs.umn.edu/~lemay/pdp8_cesi.html I have a hazy memory of CESI, but I never heard about replacement PDP-8 CPU boards before. Besides the obvious issue of cost, why were these made? I can see that with a 1.2uS cycle time, it's like a hex-high KK8E, leaving you lots of room for peripherals, but is that the only benefit? Did they integrate any I/O into the CPU module? What's the 40-pin connector at the top of the board for? As for scanning issues, I'm not one of those people to harp on bandwidth since I feed off of a cable modem. I'm personally fond of compressed TIFF files or PDF for B&W, and depending on if the document is for screen or printer 75dpi to 300dpi for regular scans. Thanks, -ethan _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

27 years, 2 months

3
2
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Inquiry

by sring＠uslink.net

I have a lot of the kid's computers, (Atari, Commodore, CoCo, etc), which I am trying to keep alive. Does anyone know if I can substitute high quality music tapes in place of computer tapes? Or where I can still find computer cassette tapes for sale? Stephanie

27 years, 2 months

7
7
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Cores, light bulb goes on ...

by mtapley＠swri.edu

>My experience of (attempting) to cut/drill magnets is that they are >_very_ hard, and almost nothing will even mark them. Mine too. It is possible, but horrendous, to reverse the drill bit, get some abrasive slurry, and *grind* a hole through a magnet. You gotta need it pretty bad, and I'll lay odds no-one will build a core memory board this way. - Mark

27 years, 2 months

1
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serial port multiplexer available

by max82＠surfree.com

I have available for a very short time (before it gets trashed by the school) a Gandalf MUX-2000 which allows a host system to control up to 15 serial ports via a single serial port. 1.2 * cost of shipping. --Max Eskin (max82(a)surfree.com) http://scivault.hypermart.net: Ignorance is Impotence - Knowledge is Power

27 years, 2 months

1
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80s video game commercials

by jfoust＠threedee.com

<http://www.commercial-archive.com/> is a repository of video clips of television commercials, including a category of "Classic videogames" >from the 80s, including Atari, Coleco, Mattel and other computers. Frames-capable browser and Real player required. - John

27 years, 2 months

2
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Nixdorf LK-3000

by fauradon＠mn.mediaone.net

The module I have is the notepad one and I've been trying to find a manual (or copy) for it as well as for the main unit. >Many modules were made for it. There are the general purpose modules, >like the Calulator, and I think there was a Computer module but I'm not >certain (if there was then I don't have one but I want one). Of course >its primary goal in life was to be a language translator, and I happen to >have English-Spanish, English-Italian, English-Polish, English-Arabic, and >probably a couple others that I forgot (I have one unit with the Arabic >alphabet above the keys :) Do you have any spare module? >I have one carthridge that was already popped open, so I looked inside and >found nothing extraordinary. Looks like a TI microcontroller of some sort >and a ROM or two. But yes, the smarts are definitely in the modules. The >actual handheld unit is really just a dumb terminal. Any actual info on the pinout of the cartridges? It seems like this unit has hacking potential... >I believe the Nixdorf LK-3000 is the first (uh-oh, there's that >word again) handheld computer device, first introduced in 1978 or 1979. The dates I found indicated 1975. >The NiCad batteries shouldn't need replacing. If you just stick it in a >charger for a day then they should come back alive. The one I played with >hadn't been on in probably a decade or two and it came up after I left it >charging for a while. I used a 6V, 200ma power supply, center positive. The NiCads in mine had started to run (whitish crysltals all over the bottom of the case) that's why I had to replace them. Francois

27 years, 2 months

2
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Great Find !

by ethan_dicks＠yahoo.com

--- Lawrence Walker <lwalker(a)mail.interlog.com> wrote: > Doing a casual dumpster dive this eve and found a box with > > Vic-1520 Colour Printer Plotter. NIB including manual and cables. Unopened > tube containing the 4 colour nibs. Dont know if they're dried out but > they're water-based. Huh? My 1520 uses ballpoint nibs. Does anyone have any software for this? Somewhere on a disk, I wrote a BASIC program to plot a function that resembles a black-hole on a spacetime grid (and the unknown mass coordinates for Starcross), but I have never run across any other programs for this device. Does anyone out there have any software for it? (I don't recall seeing any on ftp.funet.fi). > What looks to be a 1/2 ht. 5 1/4 Apple ll floppy in a 1541 case usual All > cable but with a different non-apple controller card inside ?? Please describe this more fully. The Spartan Mimic was "the" Apple ][ emulator for the C-64. One of its "features" was a board that sat between the drive cables and the 1541 PCB that used relays to cut over certain signals, and also provided for a 20-pin Apple disk connector. You could stick an Apple disk in the 1541, read it from the Apple side, then swap disks and read a C= disk from the C-64 side. AFAIK, the 1541 board was not required, except perhaps as a way to tap power (i.e., the Spartan board was essentially an Apple Disk ][ to bare-drive interface/analog board. I was a beta-tester for the Mimic in, ISTR, 1986 or 1987. It was too little, too late, for too much money. I did get to keep the unit. I still have the case (empty) and the PSU (recycled into powering external SCSI disks), but I can't seem to locate any of the innards (I think it died after a while). My "greatest" accomplishment with it was attaching a real Apple disk for D0 and playing Spellbreaker on the Apple at the same time as Enchanter on the C-64, using the same keyboard and monitor, switching between the two CPUs when one was loading the next part of the game. The documentation described being able to write programs on each CPU that could talk through a register window and do some multiprocessing, but I never wrote any nor saw any for it. Cool hardware. Dunno what you found, but it _might_ be a former part of one of those. -ethan _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

27 years, 2 months

4
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Fun with degaussers

by CLASSICCMP＠trailing-edge.com

>> >This sounds like voodoo to me. There must be some point when you are >> >lifting the demagnetizer away that the effects from the device are >> >beneficial. >> >> The "lift it slowly away and then turn off" is an important point. >> This makes sure that the media really is demagnetized. If you turn >> it off while near the media, you can leave the media in a highly >> magnetized state. >So then is that all that's really required? The "rotate around at many different orientations" is also important for a thorough degaussing. Unlike electric charge, which doesn't have a direction, magnetization *does* have a direction. The really professional degaussers will automatically rotate and diminish the magnetic field in a pre-programmed sequence. These are very large, however, and cost lots more dollars than the ones you buy at Radio Shack. With many modern high-coercivity media, you can't do a really thorough job of degaussing with a small degausser in any event. They just don't make a large enough field. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

27 years, 2 months

2
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Australian collectors - any takers for 1 or more HP1000A?

by guerney＠uq.net.au

STRICTLY IF there are enough definite takers for HP1000A units being sold off by tender by the QLD DMR (see http://www.qits.net.au/hp1000/ ), then I am prepared to act as a Brisbane staging post. According to Frank McConnell (see thread "16 x HP1000 A-series systems") these machines are 1983-1988 vintage. And they will be heavy. I have communicated off-list already with Geoff Roberts - anyone else? Although the closing date for a bid is 14 May, I am leaving town for two weeks holiday on 8 May, so any bid from me will have to go in by fax this Friday at the latest. I certainly can not hang on to more than one of these myself, so I will only go ahead with a bid if I am sure that I will not be holding them for long or our of pocket for long. Really, I am offering just in case I can be of help here to people who want something less than the full lot, when they would otherwise go to the recyclers. The cost each will be 1/16th of the total bid plus freight from DMR to me, then freight from me to you. I would expect a successful bid to be in the range $100-$500 but suggestions welcome (such as what is the Australian scrap value of them?). Please reply ASAP. Phil Brisbane.

27 years, 2 months

1
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Fwd: Re: Possible equipment for NADCOMM (IBM 029 punch)

by cfandt＠netsync.net

Okay, here's a msg for you folks who want an IBM 029 card punch. It's available in Indianapolis. Please contact Joe Montano <jmontano(a)iquest.net> to obtain it. Act on it ASAP as his boss may get rid of it soon. And no, I didn't simply forward the msg to the list without first recalling exactly what the machine in question was (in ref. to that DECMATE embarassment to me a few days ago . . . :-\ ) I've USED this type machine so know there *may* be belts inside of it ;) I have asked Joe, thru NADCOMM, to give a bit more info. He sent a little trying to compare it to a Teletype model 28 which only a few of us on ClassicCmp know. NADCOMM is the North American Data Communications Museum located in Fallbrook, CA. >Date: Sun, 2 May 1999 07:12:55 -0700 >To: North American Data Communications Museum Staff:;, > Christian Fandt <cfandt(a)netsync.net> >From: Don Robert House <drhouse(a)abac.com> >Subject: Fwd: Possible equipment for NADCOMM > >I asked Joe about size and weight. He is going to get back to me. >Any comments regarding this equipment? > >Thanks, >Don > >>From: "Joe Montano" <jmontano(a)iquest.net> >>To: <drhouse(a)abac.com> >>Subject: Possible equipment for you. >>Date: Thu, 29 Apr 1999 15:08:10 -0500 >>MIME-Version: 1.0 >>X-Priority: 3 >> >>Don, >> >> I know that isn't exactly Teletype equipment but... >> >> I have come across an IBM model 29 card punch and was wondering if you >>might like it for the museum, otherwise it is dumpster bait. >> >> It came out of the Indianapolis Ameritech office and has sat in our >>company's warehouse ever since. >> >>Let me know. >> >>Joe >>N9VMO >> <<<<<< Follow-up msg from later in the day 2 May: >>>>>>>> >Date: Sun, 2 May 1999 17:01:48 -0700 >To: Christian Fandt <cfandt(a)netsync.net> >From: Don Robert House <drhouse(a)abac.com> >Subject: Fwd: Re: Possible equipment for NADCOMM >Cc: "Joe Montano" <jmontano(a)iquest.net>, > North American Data Communications Museum Staff:; > >Chris, > >Would you help us find a home for this card punch. None of us want this >item going to the dumpster. > >Thanks, > >Don > >>From: "Joe Montano" <jmontano(a)iquest.net> >>To: "Don Robert House" <drhouse(a)abac.com> >>Subject: Re: Possible equipment for NADCOMM >>Date: Sun, 2 May 1999 14:09:57 -0500 >>MIME-Version: 1.0 >>X-Priority: 3 >> >>Don, >> >>This unit is definitely NOT as heavy as a 28 as I had no problem lifting up >>the HEAVY end. I would est. the weight as closer to 100 lbs. and maybe a >>little more but not much more. >> >>It is about the size of a small child's desk with it being deeper than a 28 >>but not quite as long. >> >>I feel that it most definitely should go to some sort of museum or >>collection but I do not have any connections and I figured that you would, >>and I was right. >> >>Yes, the unit is still in the Indy area and I have told the boss that there >>is someone interested in it for their museum/collection so he is holding on >>to it for a little while longer but I can't guarantee(sp?) how long his good >>nature will hold out. >> >> >>If you could please fwd. this on to whoever you think might be interested in >>it, we would all be grateful. >> >> >>TTFN >>Joe >> -- -- Christian Fandt, Electronic/Electrical Historian Jamestown, NY USA cfandt(a)netsync.net Member of Antique Wireless Association URL: http://www.ggw.org/awa

27 years, 2 months

1
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Fortran conquered but whither C?

by CLASSICCMP＠trailing-edge.com

>Ok, we're cooking now. I've got Fortran IV running on my HT-11 system (with >FIS support no less!) and compiled the DEMO.FOR program into DEMO.SAV. That >was pretty neat, but now I'd like to get DECUS C running on this thing. >I found DECUS C on Tim's web site (cool) but I suspect it won't run on V2. >Is there anyway to check (except for ?ILL-EMT? :-)) According to CC.DOC, part of the DECUS C documentation, about the minimum RT-11 systems it might run on: ** This compiler has been built and used under RT-11 V3B and V4. ** It has run on a PDP-11/34, a PDP-11/05 and on PDT150 systems. So it might not work under your V2-ish system. Then again, it might work! -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

27 years, 2 months

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scanning in pages

by lemay＠cs.umn.edu

I've started trying to scan in some pdp8/e data sheets. Before I scan in more pages, i'd appreciate any comments on what little i've already scanned in (one scan of a pdp8/e that is obviously too big, and two pages of data on a CESI pdp-8 processor replacement board). I plan to scan in more of those CESI information sheets on boards that they made for use in the PDP8/e computer. Is this the best way to do this, or is there a better way? http://www-users.cs.umn.edu/~lemay/pdp8_cesi.html -Lawrence LeMay

27 years, 2 months

2
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Fortran conquered but whither C?

by cmcmanis＠mcmanis.com

Ok, we're cooking now. I've got Fortran IV running on my HT-11 system (with FIS support no less!) and compiled the DEMO.FOR program into DEMO.SAV. That was pretty neat, but now I'd like to get DECUS C running on this thing. I found DECUS C on Tim's web site (cool) but I suspect it won't run on V2. Is there anyway to check (except for ?ILL-EMT? :-)) --Chuck

27 years, 2 months

1
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antiques-trs80,microbee+apple2e(nsw australia) (fwd)

by dastar＠ncal.verio.com

Found on the net. Heads up for the funny sounding folks in Australia. Please reply to original sender. Reply-to: cruffels(a)ozemail.com.au ---------- Forwarded message ---------- Newsgroups: aus.ads.forsale.computers.used,comp.sys.tandy,comp.os.cpm,comp.sys.apple2,comp.sys.apple2.marketplace Subject: antiques-trs80,microbee+apple2e(nsw australia) From: cmcconne(a)ozemail.com.au (Chris McConnell) Reply-To: cruffels(a)ozemail.com.au (erina hs) hello erina high school on the central coast is in the process of clearing out several storerooms and in the process has quite a number of old computers it would be happy to see go to good homes. if you interested see below and make an offer - any unreasonable offer will be considered and quickly accepted though obviously we reserve the right to wait a few days in case a better offer comes in. the only limitation we have is you must collect them yourself. most are in working condition but no guarentees can be made and there is little or no software or manuals included. TRS - 80's 2 - TRS-80's probably model 1: separate keyboard/cpu, monitor and power supply (no tapedecks) 2 - TRS-80's definitely model 111: single units with various configurations (one with and one without floppy drive but no tapedecks) MICROBEE 16 - 32k MICROBEE's from a network: keyboard/cpu, monitor and associated cabling (but no tapedecks) 1 - 128k MICROBEE: with floppy drive, monitor, 20meg hardrive, network connection box, dp80 printer, graphics tablet, 20 meg tape/hardrive backup and sundry connections/cabling APPLE 2 - APPLE 2e's: with floppy drive, 128k memory/80 columns, super serial card and green screen monitors 2 - APPLE 2e's: with double floppy drives, 128k memory/80 columns, super serial card and color monitors regards erina hs -- end of forwarded message -- -- Sellam Alternate e-mail: dastar(a)siconic.com ------------------------------------------------------------------------------ Don't rub the lamp if you don't want the genie to come out. Coming this October 2-3: Vintage Computer Festival 3.0! See http://www.vintage.org/vcf for details! [Last web site update: 04/03/99]

27 years, 2 months

1
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16 x HP1000 A-series systems

by fmc＠reanimators.org

"Phil Guerney" <guerney(a)uq.net.au> wrote: > The state (Qld, Australia) main roads department are selling a job lot of 16 > x HP1000 A-series systems. > > http://www.qits.net.au/hp1000/ > > Are these the same HP 1000's that are listed in the Comprehensive Computer > Catalog as being introduced in 1976? No. Those are probably the 1000 M, E, and F-series and are basically 21MX processors with the "HP1000" name applied. The A-series are later models. A600s were introduced in 1983, A400s in 1987 or 1988. I think they're largely compatible (e.g. they share a lot of the same peripheral I/O cards with the older 2100-family machines, and I think the processor has largely the same instruction set) but they're mostly smaller and faster. > - just a few km from that stash of HP1000's, but they are way out of my > league. Get some friends to help? -Frank McConnell

27 years, 2 months

3
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RSX to RT-11 OBJ file format

by jhfine＠idirect.com

I would like some help. I have a very old version of ODT.OBJ from an RSX-11 system. I MUST use this same old version to reproduce an old executable file, but I want to LINK under RT-11. The other file is in a source MAC file which does not use any system calls, so I can use RT-11 to run MACRO.SAV and produce a FOO.OBJ >from the source file. BUT, the ODT.OBJ file has the RSX-11 file format for RSX-11 and I can't do the LINK under RT-11. Can anyone suggest a way to convert it to an RT-11 file format? NOTE: I am not asking about the file structure of the directory, but the actual file format of ODT.OBJ itself. I can attach ODT.OBJ as a file for anyone who might be able to send me back the other version? It is already on a floppy with an MS-DOS file structure and I just used PUTR to copy it the the RT-11 system, but can't do the LINK under RT-11 and I don't want to switch to RSX-11. Sincerely yours, Jerome Fine

27 years, 2 months

1
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Fun with degaussers

by CLASSICCMP＠trailing-edge.com

>> Take a stack of 1 or more but not more than 5 disks and >> place them on a flat surface. >> >> Run a demagnetizer horizontally and vertically over the disks >> starting beyond the edge of the disk, crossing the disk, and then >> passing over the opposite edge. >> >> Hold the Demagnetizer about 1/4" above the disks and move it >> around clockwise and anti-clockwise several times, then while >> moving it in circles, slowly lift it up until it is about 12" >> above the disks and turn it off. >> >> The whole operation should take about 20 - 30 seconds. >This sounds like voodoo to me. There must be some point when you are >lifting the demagnetizer away that the effects from the device are >beneficial. The "lift it slowly away and then turn off" is an important point. This makes sure that the media really is demagnetized. If you turn it off while near the media, you can leave the media in a highly magnetized state. That said, 12 (or even 6) is way too many errors for a floppy disk. Cleaning the heads, re-aligning, or buying new media (there are lots of places that still sell 8" floppies) may be the real solution. >while swirling? Are you sure its not just one of those, or a combination >of two that really make the disk better? Is this truly making the disk >better or did the disk drive become amused watching you do all this and >then just decide to work because you made it laugh? You can have fun with large degaussers. For those with analog watches that aren't prized too highly, you can do some really neat tricks, such as making the run 60 times too fast (i.e. an hour every 60 seconds) or even making them run backwards! Tim.

27 years, 2 months

6
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Fun with degaussers

by allisonp＠world.std.com

My experience as I still use them is BAD BLOCKS are bad news (media dying) or just a crunch from powering down with the disk in the drive. If the disk does not erase and format without bad blocks it's trash here. I use my CPM system to format 8" SD disks and failure is not common but in all cases where I've seen that the media was shedding and gumming the head so it's trash media and a head cleaning. IF your trying to salvage data from a dying disk then you apply different rules. Allison

27 years, 2 months

1
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FA: Amdek Color Monitor.

by roblwill＠usaor.net

I have an old Amdek color composite monitor with a built-in speaker/amp. I no longer have any use for it, and it's currently just taking up space. I will take ANY offer + shipping for it. -- -Jason Willgruber (roblwill(a)usaor.net) ICQ#: 1730318 <http://members.tripod.com/general_1> PS>> It works good, it's just a bit dusty.

27 years, 2 months

2
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RT-11 SJ vs FB

by mbg＠world.std.com

> FB is the forground background monitor > (spooling to printer is a good background task! Actually, the print queue manager would be running as a foreground task... >Lator versions will have: > > BM batch monitor (for a batch based system) Batch support is a conditional assembly of any of the monitors. There is no one specific batch monitor. (And the handler name is BA). Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

27 years, 2 months

1
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Fun with degaussers

by CLASSICCMP＠trailing-edge.com

>> >Problem is that getting known-good 8" disks is non-trivial now. Computer >> >shops just don't stock them... > >> 8" Floppies are available from many mail- >> order sources in the US, most notably direct from Imation (used to >You're lucky. I've not seen them in UK catalogues for at least 5 years :-(. And even more unfortunately for you, http://store.imation.com/ doesn't sell outside the US. When I was in Canada I got around this by having a US shipping and billing address, but it's a bit further of a drive for those in the UK :-(. Have you had any luck >from the sources listed in the comp.os.cpm FAQ? -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

27 years, 2 months

1
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Fun with degaussers

by CLASSICCMP＠trailing-edge.com

>> Then maybe it's the heads, or maybe it's dirt, or maybe it's just bad- >> quality media. In my experience, one >> or two bad blocks on a 8" floppy is acceptable. 6 or 12 is way too many, >> and indicates a more serious problem. >I would start investigating if there are _any_ bad blocks... One or two are OK, if they get mapped out. The I/O Exerciser (IOX) under RSX is very good at finding flaky blocks, as is FORMAT/VERIFY:ONLY/PATTERN: under RT-11. >> Maybe I'm just paranoid, but >> I don't like taking chances with data, and testing with new media and >Agreed. My data is a lot more valuable than the price of a floppy >Problem is that getting known-good 8" disks is non-trivial now. Computer >shops just don't stock them... 8" Floppies are available from many mail- order sources in the US, most notably direct from Imation (used to be 3M), and I've lived in neighborhoods that had retailers still stocking them. >> trashing questionable media is cheap and easy compared to replacing >> lost data. This is much more true with removable platter drives than >> with floppies! >Eh? Floppies are a lot cheaper than hard disk packs in my experience... But a dirty platter can wreck a lot more than your data (such as your heads) when they *do* crash. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

27 years, 2 months

2
1
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Fun with degaussers

by CLASSICCMP＠trailing-edge.com

Chuck said: >At 09:50 PM 5/1/99 -0400, Tim wrote: >>That said, 12 (or even 6) is way too many errors for a floppy disk. >>Cleaning the heads, re-aligning, or buying new media (there are lots >>of places that still sell 8" floppies) may be the real solution. >The issue isn't with the disk I don't believe (I don't have an alignment >disk to prove it so I can't be sure). Then maybe it's the heads, or maybe it's dirt, or maybe it's just bad- quality media. In my experience, one or two bad blocks on a 8" floppy is acceptable. 6 or 12 is way too many, and indicates a more serious problem. Maybe I'm just paranoid, but I don't like taking chances with data, and testing with new media and trashing questionable media is cheap and easy compared to replacing lost data. This is much more true with removable platter drives than with floppies! -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

27 years, 2 months

2
1
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Nixdorf LK-3000

by fauradon＠mn.mediaone.net

Hi all, I have an LK-3000 and am in need of information. When I took the thingy appart to replace the NiCads I noticed that there was absolutly nothing in terms of CPU, RAM or ROM inside, only logic for the display and keypad. From this I deducted that the smarts must be inside of the module wich I didn't take apart since the label is placed on top of the screws. Does anyone has information as to what modules were availabe, any hardware architecture information, any general information. Thank you Francois --------------------------------- Note: New e-address: fauradon(a)mn.mediaone.net Visit the oh so neglected (but recently moved) sanctuary at: people.mn.mediaone.net/fauradon

27 years, 2 months

2
1
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HELP

by post＠netcity.ru

Dear Colleagues, As you know, now Russia has a deep financial and economical crisis. We are already several months have not receiving salary and our parents-pensioners have not receiving pensions. In consequence our children constantly are hungry and to be illing. Therefore we decided apply to you with request to help us a little money in order that we could to buy the things of first necessity and food-stuffs for our children. We are very hope on any your help and looking forward to your reply. GOD will notice your true generosity. Your Russian friends, Mr. A. Petrosian. Kaluga. Russia.

27 years, 2 months

1
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Fun with degaussers

by allisonp＠world.std.com

<"can't read track 0" on both A and B drives. I formatted the disks <successfully on a Compaq clone and a Commodore PC10, and now the XT will <read them. Any ideas? You didn't demag them sufficiently well. Most double sided media really needs to be done from both sides. Allison

27 years, 2 months

2
1
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RT-11 SJ vs FB

by allisonp＠world.std.com

<Ok, so on my distribution disk if I boot it up it comes up as RT-11 V20B S <but if I boot DXMNTFB.SYS it comes up RT-11 V20B FB. What's the difference <Floating point? Not floating point. SJ is the single job monitor FB is the forground background monitor (spooling to printer is a good background task! Lator versions will have: BM batch monitor (for a batch based system) XM extended memory monitor Other possibilities are also possible via a build. Allison

27 years, 2 months

1
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