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

by sales＠elecplus.com

I called the only place I know of that supported 3B2 stuff, which is Communications Hardware in TX. They recently had a change in technicians, and a lot of the older stuff they no longer support got culled, but they are willing to look for boards, drives, or whatever would help the collectors get their machines up and running again. I described the documentation set to them, and they will look for it. Any parts you want, send me a list, and they will hunt for me. Cindy Croxton

9 years, 3 months

3
2
0 0

Fluorescent lights (Was: Full immersion emulation)

by jnc＠mercury.lcs.mit.edu

> From: Jon Elson > I have converted our kitchen to LEDs. Yeah, I've already done ours, too. Our fixtures are let into the ceiling, so just replacing them with LED ones wasn't an option; I couldn't find ones that took the same opening. But I bought an under-ceiling fluorescent-sized LED fixture, made by a company called Hampton Bay, to replace an under-ceiling fixture in another room, and I noticed it was just enough smaller than the ones in the kitchen. So I gutted the kitchen fixtures, took Hampton Bay units, discarded the plastic light-shields, and with a bit of trimming, convinced the base plates (which holds the power supply, LEDs, etc) to fit into the existing fixtures. I'm now currently wanting to do my shop, and I'm looking for something which is a bit less work - tubes that I simply plug in, or something like that, are what I'm looking for! Noel

9 years, 3 months

1
0
0 0

FTGH (you come get): VAXstation 100 terminals

by spectre＠floodgap.com

I picked these up as part of an estate liquidation, but I don't have a Unibus setup to run them off, and they are large and taking up space. They now need to be gone. The condition is unknown but they are intact. If you know what one is, you probably know how to hook it up and use it. If you don't, they are NOT VAXen -- they're more like overgrown graphics terminals that connect over Unibus. They are not like other VAXstations. Take as many as you like (greater Los Angeles area). However, units that are not spoken for, or haven't made other arrangements regarding, will go to the recycler this weekend. E-mail me offlist if you are interested. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- rm -rf /bin/laden ----------------------------------------------------------

9 years, 3 months

7
8
0 0

Still Looking For AT&T 3B2 Internals Docs

by lists＠loomcom.com

Hello everyone, It's been about a year since I last asked around, so I figure it's time for me to put out another call for help. My AT&T 3B2 emulator sits unfinished due to lack of internals documentation. If you or anyone you know might have access to internals documents -- schematics, timing diagrams, etc. -- please let me know. These docs are very hard to find, and may never have been released by AT&T. Maybe you know a former AT&T engineer who managed to squirrel some away? I have many resources already, so I'm NOT looking for user manuals, SVR3 source code, or the IO Bus specification. These are pretty easily available online, and they've given me their all. Many thanks in advance, -Seth -- Seth Morabito web at loomcom.com

9 years, 3 months

6
9
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Atari 1400XL for sale...

by Craig.B.Mitchell＠zf.com

Hi, is your 1400xl still for sale? If so, what are you looking to get? Thanks for your time. Craig

9 years, 3 months

2
1
0 0

HP 2647A BASIC/AUTOPLOT47 and DEMO tape preservation

by COURYHOUSE＠aol.com

smecc would like a tape also! neat! In a message dated 3/7/2017 1:08:12 A.M. US Mountain Standard Time, cctalk at classiccmp.org writes: Dave, I am interested. I have an HP 2647 with two restored tape drives, and have been looking for this exact tape set. I have some "new" Athana tapes. Step 1 would be to copy them to a new Athana master tape. Then step to could be to make copies available to the group. Step 3 would be to transfer them to an archive format, but in essence it's already been done by the hpmuseum (in 5.25" 2647 disc format, LIF I presume?). But I don't have that rare disc unit and interface card to connect it to the 2647 (if I had, I could indeed recreate the tapes). That said, I first need to work on step 0, which is lots of practicing recovering DC100 tapes reliably: baking them, changing the belt, cleaning the guides... Fortunately I have lots of DC100 tapes that I need to recover before touching yours. It might take me a couple month to get there. Contact me off list if you want. Marc > On Mar 6, 2017, at 1:12 PM, Dave via cctalk <cctalk at classiccmp.org> wrote: > > Hello, > I have a couple of HP 2647A tapes: BASCI/AUTOPLOT47 and DEMO. They look to be in good condition. I have had them in a climate controlled lab since acquiring them as part of a sizeable lot of HP tapes last year. > I am curious if there are any known good copies of these tapes out there. Are these the same as (i.e., can be created from) the floppy images available on hpmuseum.net? > If these are not already archived, I would be interested in preserving them. I realize that reading tapes this old may be a "one-shot only" process, and I don't have the expertise or equipment to be able to archive these tapes. > Is there anyone on this list with the interest and ability to archive these tapes and make the images available to the community in a useful format? > Thanks, > Dave

9 years, 3 months

1
0
0 0

Test

by witchy＠binarydinosaurs.co.uk

Ezwind? -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?

9 years, 3 months

4
5
0 0

HP 2647A BASIC/AUTOPLOT47 and DEMO tape preservation

by dfnr2＠yahoo.com

Hello, I have a couple of HP 2647A tapes:? BASCI/AUTOPLOT47 and DEMO.?? They look to be in good condition.? I have had them in a climate controlled lab since acquiring them as part of a sizeable lot of HP tapes last year. I am curious if there are any known good copies of these tapes out there.?? Are these the same as (i.e., can be created from) the floppy images available on hpmuseum.net? If these are not already archived, I would be interested in preserving them.? I realize that reading tapes this old may be a "one-shot only" process, and I don't have the expertise or equipment to be able to archive these tapes. Is there anyone on this list with the interest and ability to archive these tapes and make the images available to the community in a useful format? Thanks, Dave

9 years, 3 months

2
1
0 0

Fluorescent lights (Was: Full immersion emulation)

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning >>> terrible fluorescent lighting. >> There's another kind? :-) > in fact you can get LEDs that fit in fluorescent fixtures, either as is I've been looking for LED replacements, but I haven't seen them; I'd have thought that that would be a pretty popular item, but I haven't seen them in any local stores. Are they only available as an online option? > or (probably a better choice) with the ballast removed. Definitely - ballasts are such a pain. Actually, let me be more accurate: the ballasts in 4' (40W) lights (where they put the two bulbs in series) are a pain. The new ballasts for the 8' lights (a couple of decades back, in the US, regulations mandated a change) are actually a delight; you have to re-wire old fixtures a bit to install them (since the new ones no longer run the lights in series), but the upside is that 8' bulbs now either work - or don't. This is distinctly unlike the 4' ones, where bulb X will work when paired with bulb Y, but not when paired with bulb Z. (Because 40W bulbs are wired in series pairs, and as they age, their characteristics change.) I don't suppose there are ballasts for 40W bulbs that _don't_ wire them in series? Noel

9 years, 3 months

8
8
0 0

Data General MTB Reference Sought

by steve＠stephenmerrony.co.uk

Does anyone have (a scan of) a manual that covers programming the MV-era MTB tape controller? I have a 1980 "Peripherals" manual (014-000632-01) from the "Programmer's Reference Series" which covers the MTA type, but it seems that the MTB behaves a bit differently and I am missing some information for my current project. Thanks, Steve -- /Stephen Merrony Email: steve at stephenmerrony.co.uk http://www.stephenmerrony.co.uk/dg/

9 years, 3 months

2
3
0 0

Test

by tdk.knight＠gmail.com

Hmm On Mar 6, 2017 6:37 PM, "Ed via cctalk" <cctalk at classiccmp.org> wrote: I see it! Ed# In a message dated 3/6/2017 5:18:52 P.M. US Mountain Standard Time, cctalk at classiccmp.org writes: Test again, None of my posts seem to be getting through... On 28/02/2017 00:35, "Jay West" <jwest at classiccmp.org> wrote: > Test received ;) > > -----Original Message----- > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Adrian > Graham > Sent: Monday, February 27, 2017 6:34 PM > To: Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > Subject: Test > > Ezwind? > -- > Adrian/Witchy > Binary Dinosaurs creator/curator > Www.binarydinosaurs.co.uk - the UK's biggest private home computer > collection? > > >

9 years, 3 months

2
1
0 0

Test

by COURYHOUSE＠aol.com

I see it! Ed# In a message dated 3/6/2017 5:18:52 P.M. US Mountain Standard Time, cctalk at classiccmp.org writes: Test again, None of my posts seem to be getting through... On 28/02/2017 00:35, "Jay West" <jwest at classiccmp.org> wrote: > Test received ;) > > -----Original Message----- > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Adrian > Graham > Sent: Monday, February 27, 2017 6:34 PM > To: Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > Subject: Test > > Ezwind? > -- > Adrian/Witchy > Binary Dinosaurs creator/curator > Www.binarydinosaurs.co.uk - the UK's biggest private home computer > collection? > > >

9 years, 3 months

1
0
0 0

FTGH (you come get): VAXstation 100 terminals

by cctalk＠ibm51xx.net

You snatch two - 1 for now and 1 for backup :). Plus it is in your neck of the woods or dessert to be more accurate. . -------- Original message -------- From: "Mark J. Blair via cctalk" <cctalk at classiccmp.org> Date: 3/6/17 8:18 AM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: FTGH (you come get): VAXstation 100 terminals Ugh, this leaves me feeling so conflicted. One or more of these rigs sounds so tempting, but both my house and my 11/730's Unibus cage are full. Do I stash one in one of my sea containers in the hope that someday find time to let it timeshare a desk in my house, and also find a place to plug it in? Or do I do the sane thing, and pretend I never saw this posting? :) -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/

9 years, 3 months

2
1
0 0

UNIBUS RK611 (RK06/RK07) controller available

by jnc＠mercury.lcs.mit.edu

So I have a complete RK611 (backplane and boards, no cables, sorry). I doubt very much I'm ever going to have any RK07's to use it with, so it's available if anyone has a use for it. It seems to be in reasonably good condition, but I have no idea if it's working or not. Noel

9 years, 3 months

2
1
0 0

I hate the new mail system

by jnc＠mercury.lcs.mit.edu

> From: Christian Corti > My complaint ... is, that if you reply to a message on the list, the > author of that message gets a private mail, too, as he is listed in the > Reply-To:-field. This is *wrong* and must be corrected (i.e. removed)! Good grief. Just about every email from every mailing list I'm on which I reply to, I have to manually remove additional addresses from the reply. It takes about one second. Just deal with it. Noel

9 years, 3 months

1
0
0 0

Another batch of tapes, 9845C, Tek 4051, VAX, Tek Misc

by pete＠petelancashire.com

https://goo.gl/photos/nTH55jvTqC9Mc2Uq8 Many of the DC300 size carts have broken bands. and a Tek 4041 PROM tray. -pete

9 years, 3 months

1
0
0 0

Model 16 Keyboards

by bill.gunshannon＠hotmail.com

I have a pair of Model 16 Keyboards for sale. If interested make an offer. Allow at least $10 additional for Priority Mail with the USPS. bill

9 years, 3 months

1
0
0 0

PDP-11/34 rails?

by jnc＠mercury.lcs.mit.edu

> From: Josh Dersch > I'm looking to rack up my PDP-11/34 so I can get it off my bench. I'd > like to track down something similar to (if not exactly) the original > rackmount rails (the ones that allow the chassis to pivot 90 degrees I'm not the sure BA11-K (10-1/2" box) mounted 11/34's could do the rotate thing; the last 10-1/2" one that could was, IIRC, the 11/05. (I don't think any of the 5-1/4" boxes could rotate.) The BA11-K had that incredibly heavy H765 power supply, maybe it was too heavy to safely rotate? > I'm not sure what the original part number or manufacturer was. Anyone > have this information handy? Anyway, I've seen BA11-K boxes with several different kind of mounting slides. The tall, grey-coated ones are made by Chassis Trak, a division of General Devices of Indianapolis. The 4 I looked at, all idential looking (except for handedness), all had different numbers on the CT sticker, so I don't know what the model number is! This one says '060RH'. I've also seen BA11-K's with narrower (height-wise) slides, in some sort of bright metal finish. I don't know who made those. GD is still in business; I looked on their web site and found similar slides. I didn't order any because they were kind fairly pricy. BTW, does anyone know that they grey coating is? Is it some sort of phosphate plating, or perhaps some sort of early powder coat, or what? Mine are rusty, and I'd like to blast them and get them re-coated, but I can't figure out what that coating is. Noel

9 years, 3 months

5
4
0 0

Rack-mounting a TU56

by ard.p850ug1＠gmail.com

I have been given an H960 rack :-). I intend to use it for my PDP8/e system (currently piled up, not connected), which consists of the : PDP8/e processor, Full of cards, memory extension, EAE, 32KW core, boot diode matrix ROM, RK8e, RD8e, RX8e, PC8e, etc. PC04 paper tape punch/reader (acutally, I converted a PC05, but that doesn't matter here) RK05 (well, there's an RK8e in the backplane and I have a spare RK05 so I might as well use it) RX01 TU56 (single drive version, ths is not a TU55 as some have suggested!). Various PSUs and step-down transformer for the TU56 and PC04 I think I have the right slide rails for the first 4 units too... Anyway, does anyone have experience of rack-mounting a TU56? It clearly doesn't go on slide rails, it bolts directly to the rack (hinge down the front panel for access). I have the manuals from Bitsavers, they imply there is some kind of spacer block that goes under the TU56. Does anyone know what that is exactly so I can attempt to make one if it is needed. -tony

9 years, 3 months

10
15
0 0

WTB HP 98036A serial I/O card

by pdaguytom＠gmail.com

I recently acquired a HP 9825 and have a project planned that will need serial i/o. If anyone has one of these interfaces they'd care to sell, I would be interested in visiting about it. Thanks, Tom

9 years, 3 months

1
0
0 0

What's the rarest or most unusual computer-related item do you own?

by rickb＠bensene.com

A selection of some of my more unusual computer-related stuff: - A Tektronix 4132 Unix workstation using a National 32016 CPU and a 4.2bsd port called UTek - A Digital Equipment PDP 8/e system with 2 RK05 drives, high speed paper tape reader/punch, RX01 Dual 8" floppy drives, 16K of DEC core memory(commonly runs with a 32K NVRAM board), 2 serial ports, EAE, RTC, Memory Extension/Timeshare board, Diode boot board (RK05 boot) - Wang 300-series calculator field service parts kit (two wooden briefcases) - Friden 6010 Computyper Diagnostic Console - Friden Electronics Training Course manuals (1960s) - Wyle Laboratories WS-02 punched card programmable electronic calculator (1964) - Busicom 207 punched card programmable electronic calculator - Altair 8800 with Altair dual 8" disk drives - IMSAI 8080 kit built in high school as a school project in 1976/1977 - Televideo Personal Terminal - GE transistorised current loop acoustic coupler modem (110 baud) - Hewlett Packard 9100A and 9100B programmable electronic calculators - Tektronix mini-Board Bucket computer and many boards for it (EPROM Blaster, TI TMS9918-Based Video Board w/RTC, SASI Interface, 6809 CPU, 6809 ICE CPU. 32K Static and 64K Dynamic RAM Boards, 300-Baud Modem Board, 5 1/4" Floppy Controller - SWTPC TV Typewriter - A large format (4'x5') Summagraphics digitizing tablet with GPIB interface - A Tektronix 4052 desktop computer (bit-slice implementation of Motorola 6800 CPU) with very rare RAM Disk module installed under keyboard - Wang Laboratories dual-cassette drive for 700 series calculator - An old fluorescent-lighted, two sided sign advertising Denon electronic calculators - Some original Digital Equipment System Modules (Used by DEC for making some of their early computers) --- Rick Bensene The Old Calculator Museum http://oldcalculatormuseum.com

9 years, 3 months

23
29
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PDP-11/34 rails?

by jnc＠mercury.lcs.mit.edu

> From: Pete Turnbull >> I'm not the sure BA11-K (10-1/2" box) mounted 11/34's could do the >> rotate thing > The two I've had .. both rotated. Ah, right you are - brain fade, late at night. I went looking in my BA11-K collection, and found a couple that do have the rotate - the part that bolts to the box has a huge 3/4 circular plate, and a metal strip that runs to the front of the box with a huge (~3") handle bar at the front, which releases it to turn. I have this bit set that the outer slides (the parts that bolt to the 19" rack) are the same for the rotating inners, and the non-rotating ones (as used on, e.g., the RK05 and the BA11-F). > I've also seen BA11-K's with narrower (height-wise) slides, in some > sort of bright metal finish. I don't know who made those. I went and had a look at some, but there is no name, or number, anywhere on them. BTW, these also rotate. Noel

9 years, 3 months

2
1
0 0

Cromemco on Craigslist in Vermont

by tosteve＠yahoo.com

Cromemco on Craigslist on Vermont/ https://vermont.craigslist.org/search/sss?query=cromemco&sort=rel Victor 9000 in New Hampshire: https://nh.craigslist.org/search/sss?query=victor%209000&sort=rel Atari Mega ST in RI: https://providence.craigslist.org/search/sss?query=atari%20mega&sort=rel

9 years, 3 months

1
0
0 0

2 more tapes Tek 4300

by pete＠petelancashire.com

https://goo.gl/photos/vogHGNSzsQrEeapA7

9 years, 3 months

1
0
0 0

2nd batch of QIC tapes

by pete＠petelancashire.com

https://goo.gl/photos/UXzDPo8WGVFNr1mA6 10 cartridges this time, all for SUN -pete

9 years, 3 months

1
0
0 0

PDP-11/34 rails?

by derschjo＠gmail.com

Hi all -- I'm looking to rack up my PDP-11/34 so I can get it off my bench. I'd like to track down something similar to (if not exactly) the original rackmount rails (the ones that allow the chassis to pivot 90 degrees so you can deal with the backplane easily), but I'm not sure what the original part number or manufacturer was. Anyone have this information handy? Better yet, anyone have a spare set of rails handy? Thanks as always, Josh

9 years, 3 months

1
0
0 0

Help needed for Unix anniversary in 2019

by wkt＠tuhs.org

Hi all, some of you may know me as the guy who runs the Unix Heritage Society and the archive of old Unix systems: https://minnie.tuhs.org/cgi-bin/mailman/listinfo/tuhs, http://www.tuhs.org and http://www.tuhs.org/Archive Mid-year 2019 is the 50th anniversary of the creation of Unix and I've been quietly agitating for something to be done to celebrate this. Up to now, there's been little response. The original Unix user's group, Usenix, will hold its Annual Technical Conference on the west coast of the US at this time, so it would make sense to do something in conjunction with this conference. Some suggestions: - a terminal room with a bunch of period terminals: ASR-33s, -37s, VT100s, VT102s, VT220s - these connected to emulated Unix systems either locally or via a terminal server and telnet to remotely emulated systems - some graphical terminals: Sun pizza boxes, a Blit would be great - if possible, some actual real PDP-11s, VAXen - emulated systems: V1 to V7 Unix, 32V, the BSDs etc. In fact there are plenty of Unix versions that we could run in emulated mode. - Unix of course was one of the systems used to implement the Arpanet protcols, so it would be interesting to get some of the real/emulated systems networked together - how about an emulated UUCP network with Usenet on top of it, and some mail/news clients on the emulated systems. - retro workshops/tutorials: how to edit with ed, using nroff, posting a Usenet article, dealing with bang paths. I'm proposing to gather a bunch of people to start the ball rolling on the technical/demonstration side. We'd need people: - with terminals, portable PDP-11s and VAXen, Sun boxen - prepared to set up emulated systems - who can help bring the networking (UUCP, Usenet, Arpanet) back to life - willing to write and run workshops that show off this old technology - to help set up terminal servers and all the RS-232 to telnet stuff Some of this we can start doing now, e.g. rebuild an emulated Arpanet, UUCP, Usenet, get emulated systems up, build front-end telnet interfaces. Is there anybody willing to sign up for this? I think once we have some momentum, we can tell the Usenix people and get some buy-in from them. Post back and/or e-mail me if you can help. Thanks, Warren

9 years, 3 months

1
0
0 0

Compaq Portable 286 and Portable III - IDE drives?

by jules.richardson99＠gmail.com

Just checking here, as someone told me that this is the case, but do the Compaq Portable 286 and Portable III take stock 40-pin IDE hard drives? I just wanted to make sure that they weren't expecting something that might be a bit non-standard before I go trying to find modern replacements for a pair of failing disks. Assuming that an enormous modern(ish) drive is OK, are there any other gotchas involved in configuration and formatting? Obviously I don't need a partition bigger than a few tens of MB, but perhaps there are things to keep in mind when fitting a drive that's most likely to be getting on for a thousand times the capacity of the original. cheers Jules

9 years, 3 months

5
6
0 0

Model 16 board set

by bill.gunshannon＠hotmail.com

I have a set of boards from an original Tandy Model 16 (long before the 6000) Worked when removed from a system with a dead CRT but has been sitting around for more than 10 years and I have no way to test them. Make an offer and let's see if we can keep them out of the landfill. Plan on probably $10 for Priority Mail. bill

9 years, 3 months

1
0
0 0

Model II Technical Reference Manual

by bill.gunshannon＠hotmail.com

I have a Tandy Model II Technical Reference Manual available for sale. It is in one of those clunky brown Tandy binders so it will not fit in a Priority Mail Envelope so will need to go in a box. I figure $30 will cover it all nicely. Anybody interested? bill

9 years, 3 months

1
0
0 0

Digital "we C.A.R.E."

by earl＠retrobits.com

Hi all. I'm hoping you can help me solve a minor mystery. I have a magnet with the DIGITAL logo, and underneath the logo, it says "we C.A.R.E.". I have no idea what that means, and Google searches have not helped. I'm assuming it's some sort of service or technical assistance program? Anyone heard of it? Thanks! - Earl

9 years, 3 months

1
0
0 0

Binary keypad front panel

by wilson＠dbit.com

I made this as a joke, but also as a simple test device for a NatInst PCI-DIO-96 GPIO card I was writing a driver for: https://www.facebook.com/john.m.b.wilson/videos/10212562451077947/ It occurred to me that lots of old machines had binary front panels (switches and lights) and lots of machines had keypad front panels (octal or hex, with 7-segment LEDs), but I'd never seen a binary keypad front panel. Plus I wanted to experiment with Cherry MX keyswitches, and try out wasdkeyboards's custom keycaps (but they're $7/ea so I didn't want to try anything too big the first time). That plus two 74LS132s, four 74LS240s, and two 74LS273s, discrete stuff and cabling, and a PCI-DIO-96 that was $25 on eBay, and it works. "set dr dio96:" in the DOS and stand-alone versions of E11 V7.3 makes it (or anyone else's homemade doohicky) appear at 777570 as usual (or you can add "set dr r0" to get the R0-during-WAIT display like on a PDP-11/70 -- whatever your OS's NULJOB uses). I'd give Gerbers to anyone who cares but really it's just a dumb joke. Fun one though. John Wilson D Bit

9 years, 3 months

4
4
0 0

IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI

by jnc＠mercury.lcs.mit.edu

> From: Dan Cohoe dancohoe at oxford.net > I'll put my hand up on this. It sounds like you got everything that was left? Enjoy the -11/60, they are pretty rare! Noel

9 years, 3 months

1
0
0 0

PDP-11/60+RL01 Recovery (was: Re: IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI)

by pbirkel＠gmail.com

-----Original Message----- From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Dan Cohoe via cctalk Sent: Friday, March 03, 2017 10:45 PM To: 'General Discussion: On-Topic and Off-Topic Posts' Subject: RE: IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI -----Original Message----- From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Steven Maresca via cctalk Sent: Friday, March 03, 2017 11:59 AM To: Noel Chiappa; General Discussion: On-Topic and Off-Topic Posts Subject: Re: IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI On Fri, Mar 3, 2017 at 11:48 AM, Noel Chiappa via cctalk < cctalk at classiccmp.org> wrote: > > Is anyone confirmed to be picking this stuff up? I'll put my hand up on this. ..... The 11/60 processor was stored in better conditions and consists of two BA11 style boxes. ..... Regards, Dan ----- Can you share with us the complement of modules installed in the two BA11-P? I'm curious as to how "stock" the configuration was. Thanks, paul

9 years, 3 months

1
0
0 0

Clock program for COSMAC Elf microcomputer with PIXIE graphics

by spacewar＠gmail.com

I've written a clock program to run on an unexpanded Elf with PIXIE graphics. It proved to be quite a challenge to fit it into 256 bytes, but I've now got it working, with two bytes of RAM to spare. There are 12-hour and 24-hour versions. I've released it under the GPL 3.0 license. The source code is in a github repository: https://github.com/brouhaha/elf-clock A text file containing instructions and hexadecimal object code is at: https://github.com/brouhaha/elf-clock/releases/download/v0.1/elf-clock-v0.1…

9 years, 3 months

1
1
0 0

Cekit 8085 micro trainer

by jules.richardson99＠gmail.com

I picked up a Cekit 8085 microprocessor trainer last weekend, model MT-01. Google seems to be of no help - has anyone else here got one of these? There's nothing really specific that I wanted to know, but it's just odd that there seems to be no info out there at all about it. Some of the writing on the PCBs is in Spanish, and it says on the back that it was made by Cekit for EKI - but throwing that into the Google pot doesn't appear to be of any help. I'm not even sure how old it is. The CPU, I/O chip and some of the logic is dated 1983/84, but then there are a handful of Goldstar 74LSxx ICs with 90xx codes on them. It may be that Goldstar just didn't follow date code conventions, or it's quite possible that it really is that recent (and some of the ICs just came from much older stock). cheers Jules

9 years, 3 months

1
0
0 0

IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI

by jnc＠mercury.lcs.mit.edu

> Is anyone confirmed to be picking this stuff up? I sent the person an email, never heard back. Ditto for one of the people here who said they'd sent the person an email - I sent them an email, asking if they'd heard back, never got an answer from them either. Noel

9 years, 3 months

6
5
0 0

DEC VT30-H and VTV30-J, was VSV11

by ed＠groenenberg.net

Henk, Your 'XXXX' high speed lineprinter is most likely a Dataproducts Model 2230 (a.k.a Dec LP05). Regards, Ed -- Ik email, dus ik besta. BTC : 1Lk6141nvDKPxtCa5erfFyovsoJN2LKqNJ

9 years, 3 months

2
1
0 0

IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI

by ljw-cctech＠ljw.me.uk

Via Mike Ross, but contact Greg with any questions! ---------- Forwarded message ---------- From: "Greg Bebermeyer" <bebergee at gmail.com> Date: Feb 27, 2017 4:44 AM Subject: IBM System/32 - web response To: <mike at corestore.org> Cc: Hi Mike, Maybe this is no longer relevant since I can't tell from the web page how recent the post is... I am selling my house and in the back of the garage is a complete System/32 that was working when I stuck it there and covered it. Much other stuff is in front of it so I haven't seen it in a while. It's free for the taking to anyone willing to come to East Lansing, Michigan and pick it up. If you aren't interested then it'll just go to the scrappers because I need to get the place ready for inspection. The junk haulers should uncover it in a day or two at which point I could take pictures. I also have a PDP-11/60, if you know of anyone interested. Same deal - free, come pick it up. The 11/60 main box has been stored in a dry basement along with two RL01 disk drives (in free standing cabinets, not rack mounted) along with a box of flat interconnect cables. It was used in a cardiac unit to run heart monitors and has an extra card cage full of interface cards. Also there's 3 PDP-11/34s in a rack in the garage as well. All this stuff has to go in about a week to 10 days, unless arrangements/promises are made and kept. If you're interested in any of this stuff, or could refer me to someone who might be, I would love for this stuff to go to a good home. Yup, I started with FORTRAN and 80-column punch cards. Thanks. My best, -Greg Bebermeyer bebergee at gmail.com greg.bebermeyer at gmail.com -- Lawrence Wilkinson lawrence at ljw.me.uk The IBM 360/30 page http://www.ljw.me.uk/ibm360

9 years, 3 months

11
11
0 0

Able board on eBay

by jnc＠mercury.lcs.mit.edu

> It's one part of a DMAX/16. Oooh, good catch. I hadn't looked carefully at those faint images, I was just looking at the brochure which had the separate images. > Not nearly as cool as an Enable :). Yes; the ENABLE was pretty clever: it used an MUD backplane as an EUB backplane, to hold the ENABLE and stock EUB memory cards; both the CPU _and_ DMA devices were on the incoming UNIBUS, and the ENABLE could tell whether a read-write cycle was from the CPU, or a DMA device (if you look at the UNIBUS spec, there's just enough to do that, even without being able to see NPG), and routed it through the appropriate mapping, depending. Noel

9 years, 3 months

1
0
0 0

Able board on eBay

by jnc＠mercury.lcs.mit.edu

So there was an odd board from Able up on eBay: http://www.ebay.com/itm/311809552775 Anyone know what it was? From the Able product summary it looked a bit like an Interlink/U or perhaps an Enable - although the detailed chip layout didn't look like the illustrations of either. Anyone know? Also, speaking of the Able ENABLE, I've recently discovered more about it, and now understand pretty much how it works. Noel

9 years, 3 months

2
1
0 0

DEC VT30-H and VTV30-J, was VSV11

by henk.gooijen＠hotmail.com

Oops, typo ? I missed one folder. The correct links are www.pdp-11.nl/peripherals/comm/interface/vsv11/vsv11-info.html<http://www.pdp-11.nl/peripherals/comm/interface/vsv11/vsv11-info.html> www.pdp-11.nl/peripherals/comm/interface/vt30h/vt30h-info.html<http://www.pdp-11.nl/peripherals/comm/interface/vt30h/vt30h-info.html> While ?promoting?, I also added a page for the RP03 www.pdp-11.nl/peripherals/disk/rp11-rp03/rp11-rp03.html<http://www.pdp-11.nl/peripherals/disk/rp11-rp03/rp11-rp03.html> It will be some time before pictures of the system and more info will land here. I am re-organizing my 2250 square feet ? but not yet clear how everything will be placed. Van: Paul Birkel<mailto:pbirkel at gmail.com> Verzonden: vrijdag 3 maart 2017 11:45 Aan: 'Henk Gooijen'<mailto:henk.gooijen at hotmail.com> Onderwerp: RE: DEC VT30-H and VTV30-J, was VSV11 Henk: In case you haven't noticed, neither of those URLs are yet active :-<. To Your Good Health! -----Original Message----- From: cctech [mailto:cctech-bounces at classiccmp.org] On Behalf Of Henk Gooijen via cctech Sent: Thursday, March 02, 2017 3:58 PM To: shadoooo; General Discussion: On-Topic Posts Subject: RE: DEC VT30-H and VTV30-J, was VSV11 Well, I did scribble a bit about the VT30 and VSV11 on my website . Check out www.pdp-11.nl/peripherals/comm/vsv11/vsv11-info.html<http://www.pdp-11.nl/peripherals/comm/vsv11/vsv11-info.html> www.pdp-11.nl/peripherals/comm/vt30h/vt30h-info.html<http://www.pdp-11.nl/peripherals/comm/vt30h/vt30h-info.html> Van: shadoooo via cctech<mailto:cctech at classiccmp.org> Verzonden: donderdag 2 maart 2017 19:12 Aan: cctech at classiccmp.org<mailto:cctech at classiccmp.org> Onderwerp: Re: DEC VT30-H and VTV30-J, was VSV11 Well, it would be a very nice thing to put the hands on a copy of such manual! :) Given that I didn't find ANY information on Google about these boards, except for the bare description in the PDP11 field guide, it would be very nice to archive a copy on bitsavers too... If you manage to find something, please let me know thanks Andrea >I've got a photocopied user's manual in this mess somewhere (used for the "VR:" VT30 emulation in E11).

9 years, 3 months

1
0
0 0

DEC VT30-H and VTV30-J, was VSV11

by shadoooo＠gmail.com

Well, it would be a very nice thing to put the hands on a copy of such manual! :) Given that I didn't find ANY information on Google about these boards, except for the bare description in the PDP11 field guide, it would be very nice to archive a copy on bitsavers too... If you manage to find something, please let me know thanks Andrea >I've got a photocopied user's manual in this mess somewhere (used for the "VR:" VT30 emulation in E11).

9 years, 3 months

3
2
0 0

ViaNet?

by silent700＠gmail.com

I recently ran across a manual and disks for a PC networking product called ViaNet. It was marketed by Western Digital and targeted toward Arcnet, although it looks like it worked with Ethernet and other topologies. There isn't a lot of info out there about it but there are a few pieces in the old trade mags on Google Books. It was peer-to-peer between PCs, but there was also a UNIX host server product for it. Anyone ever worked with it? I scanned the manuals and posted them here: http://chiclassiccomp.org/docs/index.php?dir=%2Fcomputing/WesternDigital And the disk images are here: http://nocarrier.net/archive/floppy_images/PC/WesternDigital/ -j

9 years, 3 months

1
0
0 0

Heathkit tube checker available

by jnc＠mercury.lcs.mit.edu

> From: Mouse > Might be nice to say where it is geographically. Yorktown, Virginia, U.S.A. Noel

9 years, 3 months

1
0
0 0

Heathkit tube checker available

by jnc＠mercury.lcs.mit.edu

Hi, all, I have a Heathkit TC-3 tube checker, including manual and prints, available. Image here: http://ana-3.lcs.mit.edu/~jnc/tech/jpg/tmp/TubeChecker.jpg It has been modified with an after-market Coletronics panel with a bunch of additional tube bases. Condition is unknown; it probably hasn't been powered on in some years. It was in my wife's father's basement, so it was in a cool, dry space, at least. I know this isn't the best list for this, but I'm not on those lists; can people here who are, please forward it to those lists? Any interest, reply to me only, please - no need to litter the list! Noel

9 years, 3 months

2
1
0 0

huge thank you

by suea.pac＠gmail.com

Hi: Just a quick note to thank the cc forum for providing a platform to publicize our needs in an (nostalgic?) attempt to re-create a Data General Eclipse and Nova environment that we used for a number of years, over 40 years ago, in what I thought might well be a fruitless endeavor. Were it not for this forum, and in particular the generous assistance of Mr.Jay Jaeger of Wisconsin, the project would have never gotten off the ground. As it is, progress is now in store! Gratefully, Roger H. Anderson Endwell NY

9 years, 3 months

1
0
0 0

Reading an ICT/ICL EDS8 (?) Disk Pack

by robert.jarratt＠ntlworld.com

I have been on the lookout for software for an emulator of MU5 that I am building. Manchester University has found a disk pack that is promisingly labelled. The disk pack has been provisionally identified as an ICL EDS8, apparently compatible with an IBM 2311 and with the mechanical assembly based on a CDC 9450. The University has asked The National Museum of Computing (TNMOC) is they have a drive that could read this disk pack, but it seems that although they have such a drive, they have no plans to restore it. Does anyone know of a working drive that might be able to read this pack? Regards Rob

9 years, 3 months

1
0
0 0

DEC VT30-H and VTV30-J, was VSV11

by shadoooo＠gmail.com

Hello, given recent posts about Unibus graphic systems, I'm coming back with a request: was anyone some documentation about board sets VT30-H and VTV30-J? They should be graphic systems as well, the former Unibus, the latter Qbus. Definitely I think they aren't "regular" DEC products, maybe they were developed by third parties, as the PCB realization and style is far from DEC boards. I think they are really hard to find parts, would like to try to do something with it. Thanks Andrea

9 years, 3 months

2
1
0 0

Cassette Interface Assistance

by brain＠jbrain.com

Analog, which is my nemesis, curses me again. I have a cute idea for a cassette port project for the Tandy line of computers (the ones with the cassette port). I have a Coco 3 on the bench, so I scoped the output line while doing 'csave "jim"'. The signal looks to be just under 1V PtP (0-1V on the scope), and rests at about .3V when not sending data. I have tried 6 different ways to boost the signal to 5V digital, to no avail, and so I ask humbly if someone with analog knowledge might be able to assist. I first tried to boost the signal with a transistor (with variations using a N channel FET as well). Arguably, that was foolhardy, and it did not work. My second attempt was based on this link that was shared with me: http://labs.rakettitiede.com/12kbps-simple-audio-data-transfer-for-avr/ The output from the Coco3 does not appear to be "loud" enough to work with this circuit. So, I finally decided a comparator solution would be required. First, I tried a design using a 741 op-amp, which failed miserably, but probably would have worked, but I tried to merge the design from the Coco1, and replace the LM339 in the Coco 1 design with the 741, and I feel I did not merge the designs well :-) I then tried using the comparator in an Atmel AVR, and had minimal success. By biasing one input via a variable resistor to around .8V, I was able to get a digital stream, but it did not look like the data stream of the cassette format. I then pried an LM339 out of my Coco1 and replicated the circuit int the Coco 1, as noted in the tech manual: Color Computer Technical Reference Manual (Tandy).pdf <http://www.colorcomputerarchive.com/coco/Documents/Manuals/Hardware/Color%2…> I was shocked that I had no success with that design at all. I assumed (wrongly, it appears) that the Coco cassette input circuit would read the output of it's output circuit. Beyond the possibility that my components are defective or I wired it up wrongly, I can only theorize that Tandy assumed that all tape recorders would AGC the output and then feed a 2V PtP signal back to the Coco (the Coco 1 circuit looks to bias the comparator at 1.05V (not sure about the feedback resistor's impact)) I can fiddle around with the AVR solution, which might work if I can smooth out the spikes and bias the comparator right, but it just bothers me that the Coco 1 circuit does not work, as I assumed I would at least have success by copying a working design. Jim -- Jim Brain brain at jbrain.com www.jbrain.com

9 years, 3 months

15
29
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