test-drb February 2018

test-drb@ccmp.vtda.org

160 participants
141 discussions

SimH DECtape vs. Tops-10 [was RE: Writing emulators [Was: Re: VCF PNW 2018: Pictures!]]

by RichA＠livingcomputers.org

From: Paul Koning Sent: Wednesday, February 21, 2018 6:41 AM > And while there is roughly-accurate simulation of DECtape in SIMH (presumably > for TOPS-10 overlapped seek to work?) It's not for Tops-10. SimH only provides the KS-10 processor[1], so DECtape is not a possible peripheral. Rich [1] Although there is a KA-10 in the works.

6 years, 1 month

Why don't you respect the mail threads?!

by jnc＠mercury.lcs.mit.edu

> From: Grant Taylor > I'm on a list where it seems as if a frequent contributer uses an MUA > that does not send In-Reply-To or References headers at all. It doesn't > even send a User-Agent header. *sigh* That's me, I expect. I used to use a TOPS-20 email reader called MM, and when I moved my email to a Unix machine, there was a version of MM I used there, then something happened (I forget what) and I couldn't use that any more. I do have access to a more modern email reader (Eudora), but don't like it; I just stick with old, simple stuff I know how to use. I don't have the spare brain cells / energy to switch. After going through I've-forgotten-how-many editors (starting with TECO, then 'ed'), text formatting systems, operating systems, email readers, etc, etc I have a _very_ simple rule about switching software: is the old stuff I'm using utterly, irretrievably unusable? If not, ignore the new stuff. Eventually it'll be obsolete too. And in the meantime, I'll have saved countless cycles by not going through the hassle of switching to it. Life's too short. Noel

6 years, 1 month

DEC Pro 350

by kurt＠hamm.me

Well, I bought that DEC Pro 350 on ebay. It initially booted up and I got the error screen. The error code I found on the Internet was related to the hard disk controller. So, I thought I just needed someone to sell/give me some systems disks for the unit and I could try to setup the drive again if it still functioned. Then, it after a couple of restarts (I re-seated the boards and cleaned the connectors) it stopped showing the error screen (with picture of the computer). All the diagnostic lights are red on the back and nothing ever shows on the screen. The power comes on and then nothing. If anyone has any thoughts, I would appreciate it. I knew the history of this type of computer and figured it was a long shot. I am just disappointed to have gotten really nowhere with it. Thanks! Kurt

6 years, 1 month

DEC Pro 350

by jnc＠mercury.lcs.mit.edu

> From: Kurt Hamm > If anyone has any thoughts, I would appreciate it. You probably already know this, but... My sense is that a collector of classic computers has to be able to diagnose and repair at the component level - get in there with an oscilloscope and a set of prints (creating the latter, if need be), and find the busted chip/transistor. It's like collecting old cars - if you collect old cars, you have to be able to work on them (or like Jay Leno, be rich and hire someone else who can - although given that Jay worked at an auto dealer 'back in the day', he apparently does know a fair amount). Which isn't going to help much with this particular problem, maybe some of the other replies will help. Noel

6 years, 1 month

Honeywell DDP-516 console on Ebay - PLEASE don't bid!

by hachti＠hachti.de

Hi folks, I recently discovered a complete Honeywell DDP-516 console on Ebay. It is a charity auction, ending tomorrow. I am the high bidder (hachti, 600-some points) and BEG YOU ALL NOT TO BID on it! I already entered a crazy high bid anyway bid so please don't bid on it. I am one of the very very very few people who have an actual DDP-516 machine and can really use this as a spare for a real machine. Again, PLEASE refrain from bidding up this item! If you are the owner of a "headless" machine who is in need for the front panel: please contact me, so we can avoid an explosion on Ebay. Thank you very much. Kind regards Philipp

6 years, 1 month

IBM Rigid Cleaning Tool 2200574

by aek＠bitsavers.org

https://www.ebay.com/itm/232678490872 anyone run across a volume source for these? They appear to be IBM's version of the Texsleeve

6 years, 1 month

looking for a mother board for a hp 3000-37

by g-wright＠att.net

Anyone have such a piece or know someone that might. Board number is 30457-60001 Might take the whole thing if the price is right. Thanks, Jerry

6 years, 1 month

ISO: Tektronix 4404 peripherals

by derschjo＠gmail.com

Hi all -- I'm working on fixing up a Tektronix 4404 workstation (runs Smalltalk-80!).? Or rather, I'm trying to collect the needed parts to assemble a complete system so that I might fix up said system -- at the moment I have only the main CPU unit (but hey, it's a good starting point).? I am looking for: - Keyboard (Tektronix P/N 119-1872-00) - Mouse (Logitech P7-3F-TX-19-1808-00).? This is likely a standard 3-button quadrature mouse but if I can find the exact match, so much the better... - Mass Storage (Tektronix model 4944, possibly others?? This is a SCSI device containing a hard drive on a SCSI->MFM bridge and 5.25" floppy drive on a custom SCSI->floppy interface.) If anyone happens to have spares or knows anyone who might, please let me know.? Thanks as always! - Josh

6 years, 1 month

ibm panel

by ed＠groenenberg.net

So, all this talk about panels made me making an oak frame for an IBM panel I had lingering around in the attic for a while. Still need to make a back panel to close it tough. http://bit.ly/2HI2cHC The cables were already cut when I got it. Ed -- Ik email, dus ik besta.

6 years, 1 month

Searching for Sun2 and Sun3 bits and bobs- a long-running project approaches completion!

by ian.finder＠gmail.com

Hi folks, I recently, on a trip to Oregon, finally got a compatible ECL monitor for my Sun 2. It came with a rather nice Sun 3/260, which I?d like to run as well. So I thought I?d put out a beg here- I?m so close to finishing this. I need to shake loose a keyboard and mouse for a Sun 2. Would anyone be willing to sell me one? I?m not expecting a handout; they would be paid for and well loved. On a related note, I?d love to run the 3/260 as well: What I?d like to do for that is hunt down a Sun color framebuffer for it so I can use a more common display. (and of course, enjoy the wonders of color). I?m not sure what the options there are, but I have a nice scan converter so just about any compatible color framebuffer will do. I can then totally repurpose the monitor I?ve just found for my 2/120. So, in the words of another immortal list member, ?advice hints ????? Thanks in advance, - I

6 years, 1 month

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test-drb February 2018