test-drb

test-drb@ccmp.vtda.org

101090 discussions

by jnc＠mercury.lcs.mit.edu

Re: Cleaning an old keyboard Hey, that spiel would be a good start to a great article on the CHWiki, 'Cleaning keyboards'! (Not sure if any of the other replies contained anything worth picking up.) Noel

6 years, 10 months

Timex 16k Ram Expansion on GoodWill auction site

by bob099＠centurytel.net

https://www.shopgoodwill.com/Item/76238179 Ending today, just saw it

6 years, 10 months

DJ11 Maintenance Manual available

by jnc＠mercury.lcs.mit.edu

So, I have a copy of the maintenance manual for the DJ11; is this something anyone needs?n If so, I'll move it up the scan queue. Noel

6 years, 10 months

Tek logic analyzer probes available

by elson＠pico-systems.com

I have 6 Tek logic analyzer probes available. I have one P6464 pattern generator probe with a message about some bad channels (could have been the cable or pat gen board, too). There are 3 X P6452 analysis probes, and 2 X P6451. Anybody need any of these? Thanks, Jon

6 years, 10 months

Help identifying mystery Unibus board

by derschjo＠gmail.com

Hi all -- Found this in a stack of boards, and I don't know what it is, other than that it's Unibus -- there's a logo but no text identifying the board or the manufacturer. Anyone recognize the logo in this picture? http://yahozna.dyndns.org/scratch/random/board0.jpeg Here's the full board, for reference: http://yahozna.dyndns.org/scratch/random/board1.jpeg Thanks, Josh

6 years, 10 months

flux to imd

by cclist＠sydex.com

On 9/21/19 10:26 AM, Al Kossow wrote: > > > On 9/21/19 10:12 AM, Mark J. Blair wrote: > >> Is it effective to bake cookies in their jackets? > I don't know, since i've never baked floppies. Chuck would know. Yes, I do. Usual 58C temps that I use for tapes. Doesn't seem to affect the jacket. --Chuck

6 years, 10 months

M7821 variants

by jnc＠mercury.lcs.mit.edu

So I just discovered that there are three wildly different variants of the M7821 Interrupt Control card. More here, with images: http://gunkies.org/wiki/M782_Interrupt_Control I'll have to dredge around and see if I can find circuit diagrams for them all; they are wildly different, the -C has many fewer components than the -B and -D, and the latter has a couple of delay lines. Noel PS: Sorry about that dis-directed message to Cindy; not quite sure what I did wrong there.

6 years, 10 months

Manx entry update

by jnc＠mercury.lcs.mit.edu

> From: Jim Stephens > I don't know how to contact the maintainer for manx There was discussion recently about that, and I did manage (with help from someone here who provided his email - thanks muchly!) to reach him. We were discussing how I could help update things, but a hurricane came by, and I dropped it; need to continue. > Anyway I found that the entry for one of the entries is stale but the > internet archive had captured the tar file with the information. > ... > One of the questions is whether archive.org entries are desirable or > acceptible by the rules, and 2, whether the internet archive will be > okay with that. I see frequently that Wikipedia entries retrieve and > publish those links. I can't see how either would be a problem (as you point out with Wikipedia). As long as the bits are there, and won't go away (which I assume is true of the IA) that should be OK. Noel

6 years, 10 months

Dot Matrix Printers - UK - Free to good (or even bad) home

by dave.g4ugm＠gmail.com

Folks, I have a couple of spare printers 1. Panasonic KX-P3626 wide carriage 24-pin dot matrix printer with sheet and tractor feed. Free to anyone who wants it. If needed I can throw in a box of music ruled fanfold paper. Comes with some spare ribbons. 2. Amstrad DPM2000 narrow carriage 9 pin printer. Sheet and tractor feed, but I can't spare a box of narrow paper. Located in south Manchester, North West England. I haven't tested but will do if there is any interest. Dave Wade G4UGM & EA7KAE

6 years, 10 months

Manx entry update

by jwsmail＠jwsss.com

I looked for an image or record of the PDP8/L reference card, and one of the entries which showed up was for manx. I don't know how to contact the maintainer for manx but figure if someone can comment here it would be better than me ratholing and still not figuring it out. Anyway I found that the entry for one of the entries is stale but the internet archive had captured the tar file with the information. PDP-8 Pocket Reference Card http://manx-docs.org/details.php/1,5468 https://web.archive.org/web/20151121165042/http://www.vaxarchive.org/pdp11/… I did find this, and will try. Is something not working? Is a URL out of date or offline? Feel free to create a bug report <http://manx.codeplex.com/WorkItem/Create> on our CodePlex project <http://manx.codeplex.com> http://manx.codeplex.com/WorkItem/Create One of the questions is whether archive.org entries are desirable or acceptible by the rules, and 2, whether the internet archive will be okay with that.? I see frequently that Wikipedia entries retrieve and publish those links. Thanks. Jim

6 years, 10 months

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