test-drb December 2015

test-drb@ccmp.vtda.org

191 participants
268 discussions

by lehmann＠ans-netz.de

Hi, I knew ST-251-0, ST-251-1 drives for ST506. Some time ago I've got a ST-251 labled "MLC-1". Does someone knows what the MLC stands for? What is different to the other ST-251 variants? It looks like a regular ST506 drive. Oliver

8 years, 4 months

Anyone collect Fortune 32/16 systems?

by jwsmail＠jwsss.com

There is one quite inexpensive on Ebay right now. Looks to be a match for the system unit at the CHM as well. Maybe they need a spare. I don't know if they want parts machines or not, but for the price it is almost tempting to pick it up. http://www.ebay.com/itm/321399704868 Hope Christmas brings everyone a lot of new toys. (as in old ones). Thanks jim

8 years, 4 months

Odd disk image format... .552?

by wrm＠dW.co.za

> >Recently found some long-lost images of 5 1/4" floppies that were sent >to me... 10-15 years ago. Here's one of them: > >http://www.corestore.org/RP06.552 Looks like a straight image for a 1.44 what we call "stiffy". The 522 is the version of RP06. Google leads me to http://www.corestore.org/rp12.htm so you already know what it's for :-) W

8 years, 4 months

XY11 Manual, Anyone?

by COURYHOUSE＠aol.com

yes I can... it got LIFTED! Ripped Off! Stolen! Bummer eh? In a message dated 12/23/2015 9:43:59 A.M. US Mountain Standard Time, cisin at xenosoft.com writes: On Wed, 23 Dec 2015, COURYHOUSE at aol.com wrote: > it appears the pen kit for our plotter got listed before we had > it glassed in living the glassed in display a areas Could you rephrase that?

8 years, 4 months

XY11 Manual, Anyone?

by COURYHOUSE＠aol.com

it appears the pen kit for our plotter got listed before we had it glassed in living the glassed in display a areas if anyone has a calcomp box with the solenoid and pens that is extra to their needs please let us know many thanks Ed Sharpe archivist for smecc _www.smecc.org_ (http://www.smecc.org) In a message dated 12/23/2015 6:28:28 A.M. US Mountain Standard Time, dave.g4ugm at gmail.com writes: Surely there is a copy of CalComp Host Computer Basic Software (HCBS) around somewhere that talks to the XY11. After all the Calcomp is pretty thick. All it can do is move 1 step at once, well it can do diagonals as well, but pretty thick... Dave G4UGM > -----Original Message----- > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Stefan > Skoglund (lokal anv?ndare) > Sent: 23 December 2015 11:07 > To: cctalk at classiccmp.org > Subject: Re: XY11 Manual, Anyone? > > > > > Then for software I found a diagnostic, XXYAD0 that supposedly > > > should draw a square and a rectangle. > > > > > > Anyone know of other drawing software that uses the XY11 > > > > > > /Mattis > > > > The book 'The Minicomputer in the Laboratory' by James W Cooper covers > > using an X-Y plotter with an 11/05, and has assembly listings and a > > whole bunch of related stuff about scientific plotting. Also a lot of > > info on using the LPS- > > 11 too. > > There are plenty of copies out there and quite cheap too. It's an > > excellent book and could be of use to you. > > > > Steve. > > > > Boken finns i Ume? universitets boksamling (?ven p? > fysikinstitutionen.) > Det verkar inte finnas n?got exemplar i Uppsala d?remot. :-) Kastad ?

8 years, 4 months

An IBM I/O Selectric interface using TTL and a 2708 EPROM

by steven＠malikoff.com

Back in the late 70s early 80s one of Dad's work colleagues came up with this circuit for interfacing an IBM I/O Selectric to a microcomputer. We had one, which we planned to use with our Fairchild/Mostek F8 development board, but it never got done - my brother and I wanted a computer with a screen, not a printer! So we spent our pocket money (and Dad's too) on an S-100 kit system, but that's another story. Recently I found the only remains of our I/O writer, the platen. Sadly I think it must have been junked, the platen being kept to roll out photographic prints in Dad's darkroom. I just finished scanning, cleaning up the degradation and turning the circuit into a PDF. These days an Arduino or RasPi would be a simpler and more flexible way to go, but I hope you find it interesting looking at how it was done with TTL and discrete components. The circuit was designed by (I believe) Neil Taylor, possibly with the help of Derek Williamson, both brilliant IBM Australia CE's. I know my dad always spoke very highly of them. It's an 8-page PDF at http://web.aanet.com.au/~malikoff/misc/IBM_IO_Selectric_interface.pdf Regards, Steve Malikoff.

8 years, 4 months

XY11 Manual, Anyone?

by COURYHOUSE＠aol.com

I had the large ibm calcomp plotter if big wide one we have the same ... it is in the hp display case at smecc museum there was a fortran graphics text book we had adn I had gotten with a HP 3000 and it had a interface board ( parallel interface?? too many years) I made it plot squares etc .. as I remember the hp intrinsics may have had some support for this.. once I did that i put it aside and went back to playing with the HP multi-pen HP plotters we sold back them at Computer Exchange Inc. In a message dated 12/22/2015 3:22:01 P.M. US Mountain Standard Time, steven at malikoff.com writes: ---------------------------- Original Message ---------------------------- Subject: XY11 Manual, Anyone? From: "Mattis Lind" <mattislind at gmail.com> Date: Wed, December 23, 2015 2:53 am To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> -------------------------------------------------------------------------- > I have in mind to connect a machine to an IBM 1627 (CALCOMP 565) plotter > and then the XY11 which just arrive would fit nicely, I think. > > But I cannot seem to find any manual for the XY11. Anyone know of a manual? > > The board is rather simple so it should be possible to work out the details > on how to interface it by hand but it would be nice to have the proper > manual. > > Then for software I found a diagnostic, XXYAD0 that supposedly should draw > a square and a rectangle. > > Anyone know of other drawing software that uses the XY11 > > /Mattis The book 'The Minicomputer in the Laboratory' by James W Cooper covers using an X-Y plotter with an 11/05, and has assembly listings and a whole bunch of related stuff about scientific plotting. Also a lot of info on using the LPS-11 too. There are plenty of copies out there and quite cheap too. It's an excellent book and could be of use to you. Steve.

8 years, 4 months

Fw: Odd disk image format... .552?

by nico＠farumdata.dk

On Tue, Dec 22, 2015 at 10:17 PM, Nico de Jong <nico at farumdata.dk> wrote: > ---- Original Message ----- > From: "Mike Ross" <tmfdmike at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" >> <cctalk at classiccmp.org> >> Sent: Tuesday, December 22, 2015 9:41 AM >> Subject: Odd disk image format... .552? >> >> >>> Recently found some long-lost images of 5 1/4" floppies that were sent >>> to me... 10-15 years ago. Here's one of them: >>> >>> http://www.corestore.org/RP06.552 >>> >> Seems to be a MSDOS 5.0 boot disk, with just one important program, >> RP06.EXE, on it, and then some support programs. >> As far as I can see, it is a physical backup. Could the 552 just be a serial >> number `? > >That's kinda what I expected actually... so you reckon they're just in >normal raw image format for e.g. Rawrite? > Suppose so. They took a complete disc, sector by sector, and wrote it as a file. /Nico

8 years, 4 months

Now this person is optimistic

by jnc＠mercury.lcs.mit.edu

Check out: http://www.ebay.com/itm/DEC-PDP8-I-MINICOMPUTER-PDP8-PDP-8-PDP-8/2014877000… I know it has a bunch of DECTape drives, but... Noel

8 years, 4 months

Apple II keyboard WTB

by mail.nickallen＠gmail.com

Hey everyone, just got my Apple1 powered up!!! The PIA is hot to the touch, I heard they run hot, how hot is too hot?? Looking for an Apple II keyboard to convert for use on my Apple1. Anyone have one for sale or trade? Thanks! -Nick

8 years, 4 months

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test-drb December 2015