test-drb September 2013

test-drb@ccmp.vtda.org

168 participants
203 discussions

Making perfect Keytronic replacement keypads

by aek＠bitsavers.org

I had to fix some Lisa keyboards, and here is what I finally came up with after a week or two of experimenting that produces perfect pads. Woodland Scenics 5mm HO track bed for the foam, as others suggested ($1 for 24" x 2") Maudlin PL10-0075 .0075 x 10 x 20 plastic shim stock for the back (about $10 with shipping) Michaels metalized mylar sheets for the pads (a couple bucks for several square feet) Get a Disc Cutter with 7 Punch 1/4" to 5/8" from ebay ($28) http://www.ebay.com/itm/390617394797 for example This is critial (see below) Cut the foam and shim stock to 10" x 9/16" Cut strips of mylar long enough and wide enough to apply to the foam Attach the shim stock to the mylar with Scotch Super 77 spray adhesive Do the same with the mylar, metal side against the foam, with enough tension so it is smooth. You only have about a second to fiddle with the mylar before the adhesive starts to set! Shim the disc cutter so the strips just fit through the upper and lower plates without binding. Then use and arbor press or non-metal mallet to punch the discs, mylar side up. You'll get about 15 discs per strip. I experimented with a leather punch, and even tried a 11mm cigar punch, but the only way I could get perfectly straight cuts through the foam was with the disc cutter. So far, I've identified the following systems that need pad replacements Apple Lisa Corvus Concept Terak Genrad Futuredata SOL-20 I was thinking of making a bunch, but changed my mind after finding what a PITA they are to make. The other thing I discovered was Elmers School Glue Sticks work the best for attaching old pads and plastic to new foam.

11 years, 3 months

oasis8 disk images

by supervinx＠libero.it

Hi! Anyone has some disk images of Oasis8 OS? Thanks! -- Retromuseum: http://www.supervinx.com/Retrocomputer You can reach me at: http://www.youtube.com/supervinx http://www.myspace.com/supervinx http://www.facebook.com/supervinx

11 years, 3 months

Collection to sell

by dsnyder＠blueshiftinc.com

i would be interested in the pdp11 stuff. do you have descriptions (components and condition) of the 11/35, 11/70 and qbus systems and parts? how will you determine prices? i live in the south bay, so i could pick up the heavier items that can't be mailed. doug

11 years, 3 months

Collection to sell

by ball.of.john＠gmail.com

Is either the 8/L or the 11/35 just the bare unit or is it in a rack? I can probably justify shipping costs if it's just the unit. Wish this has been posted a month ago when I was still in the area. xP -John > Hi All, > I'm helping a friend, Barry, with clearing out his collection of > computers, manuals, etc. He has a lot. Here is an initial list. > > -- a Digital PDP-8L > -- a Digital PDP-11/35 > -- a Data General Nova 1200 > -- at least two Deskside Solbourne systems (these are Sun Sparc based > multiprocessor computers), spares, and the installation media on CD-ROM for > the special version of SunOS they ran. > -- At least a dozen Sun Sparc1 and Sparc2 workstations > -- lots of DEC desktop VAX, Alpha > -- lots of q-bus pdp-11 systems and parts, several BA-23 (perhaps as many > as a hundred cards) > -- a number of IBM RS/6000 systems > -- a number of HP 9000 systems > -- still more sparc workstations including at least one each sparc-10, one > sparc-20, one ultra-10, the "lunchbox" > -- a variety of screwball laptops including two Tadpole sparcbook laptops > -- at least two early 68K macintosh laptops, appletalk and an ethernet to > appletalk bridge > -- everal 9-track tape drives (not to mention tapes, including a Unix V7 > distro tape) > -- an AT&T 3B1 > -- an Anderson-Jacobsen serial printer (based on the IBM Selectric > mechanism) > -- A Digital PDP-11/70 in the "blue" trim (blue and white switches) in a > double-wide corporate cabinet > -- lots of IBM PC type gear, spanning many generations. > -- lots of computer-ish books. > -- Ancient software (Ashton Tate DBase IV, maybe?) > -- A Livingston Portmaster > -- A Gould Biomation K100D and a Gould Biomation K101 logic analyzer. I > have service manuals for the K100D, and enough cables for one or the other. > -- Lots of S-100 cards and parts including both Z80 and 8086 > -- An Imsai 8080 S100 system with the lights-and-switches front panel > -- An Ithaca Intersystems S100 system with the lights-and-switches front > panel > -- An Altair 8800 system > -- A Seattle Computer Products S100 system (this is what the original > ms-dos was developed for by Tim Paterson ) > -- A SAGE II 68K with CP/M-68K > -- A Sun-2 in dual deskside cabinets with a Fuji 9-track drive > -- The Siemens equivalent of an ASR-33 > > Let me know if you are interested. Some of the bigger items can't be > shipped. We are in Santa Cruz, California. > > -Gary >

11 years, 3 months

Looking for a good home: Alignment disc 200TPI for trade or ...

by hp-fix＠xs4all.nl

I have here an alignment disc from EMM 200TPI DIBIT patern. It's a cartridge for a top loading drive like the CDC Hawk or DEC RL02. The disc is new in box including original invoice from 1979. It was stored in dry place inside the house, a quick visual inspection learn that it seems to be in good state no corrosion. I don't have any use for it (doesn't fit in my HP disc drives ;) So it's for trade or a little beer money + shipping. Trade is preferred.. I ship worldwide. Oh yes, it is of cause AS IS no warranty etc. -Rik

11 years, 3 months

Punch Cards Q

by jon＠jonworld.com

All, Thank you for your generous donations to the STEM program I'm working on. I have a question or two about the punch cards I've received. Some of the cards have printing on one side, and are "dog eared" or have the angled corner on one end. Other cards have the printing reversed; the dog-ear corner is on the other end of the card when I'm looking at the printing. If those cards with the reversed "cut corner" or "dogear" were used in the same machine as the first set of cards, they'd be read "backwards." ... so why the two different formats? -- -Jon Jonathan Katz, Indianapolis, IN.

11 years, 3 months

TeleVideo items for sale

by me＠GarrettMeiers.com

Hi. I have a variety of Televideo related items that I would like to find a buyer for. I acquired these through the acquisition of a very large lot of vintage computer related items last year, and really didn't have any strong interest in the Televideo items at the time. However, now that I've had them for a year, I am starting to like them -- but don't have the room to keep them, unfortunately. Time to move them to a better home where they will be enjoyed. Highlights include: - 5 TS-806/20's Computer/Servers - 28 (Probably a few more) Serial Terminals/User Stations (925, 970, TS-800, TS-800A, TS-802, TS-802H, TS-803, TS-803H, etc.), and keyboards. - 1 TeleVideo TPC 1 Portable - Lots of RS-422 networking cables, manuals, documentation, etc. I think I've found, and inventoried, all of the Televideo items that I have, but I might find some more, and will add them if I do. Here is a link to a Google Doc that has everything detailed: https://docs.google.com/spreadsheet/pub?key=0Ahk4_RQTUNcYdFpTOFQ3RFdMQ0FocE… Also, here is a link to the pictures on Dropbox, and some manuals I've collected.. Note, there are a lot more Terminals/User Stations that what are shown in the pictures (see Google Doc for inventory): https://www.dropbox.com/sh/gh6sygch9ddigvb/px5hBsLjp0 I am hoping to find someone who is interested in purchasing the entire lot, but will consider breaking it up. I am planning on attending VCF Midwest, so would be happy to bring items there. If you are interested in the entire Televideo lot, it would be great if you could pick it all up from my residence in Appleton, WI. I really don't want to bring it all to VCF. I am about 3 hrs North from VCF Midwest. I would like to add, that this lots is not in the greatest of condition. Definitely not museum quality. Lots of it needs some TLC to clean it up. Some (most) of the items have some marker writing on them (as the pictures show). Lots of scratches, etc. IIRC, all of the items I tested worked, but I didn't test everything, and only tested a small fraction of items. The 5 TS-806/20's all worked, but I think only one of the hard-drives actually worked. I had several TS-80x's network booting off a TS-806/20 via RS-422, with TurboDos, and that was pretty neat. As far as shipping, since most of these are either really big and bulky, or heavy, I'd prefer to not ship them. I would probably consider shipping any of the other items (manuals, etc.), but I'm going to hold out for a little while to see if anyone is interested in the entire lot before I piece it out. I don't have anything in mind really for price, so please make an offer. Please contact me directly via e-mail with offers. General discussion via CCTalk is welcomed. Thanks, and I hope to see many of you at VCF! Garrett Meiers www.linkedin.com/in/theunixguy

11 years, 3 months

My Macintosh Powerbook 145B on YouTube

by terry＠webweavers.co.nz

Life is crazy right now but I finally managed to get another Youtube video up showing one of my inmates. This time it's the Apple Macintosh Powerbook 145B http://youtu.be/_HIBl8utMe0 Terry (Tez)

11 years, 3 months

Wang computers in ebay.de

by mnusa2＠hotmail.com

Hi all (possible) Wang enthusiasts I have no interest in these but please find following link for review: http://www.ebay.de/itm/290980479749 There is three pallets of wang computers and parts. Local pick-up in Germany only. BR, Matti

11 years, 3 months

Removing TurboChannel Standoffs in a VAXstation 4000 90A

by robert.jarratt＠ntlworld.com

I want to transfer a TurboChannel option from one machine to another. To do so I would need to remove the standoffs as well. Does anyone know how to do this without breaking them? Thanks Rob

11 years, 3 months

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test-drb September 2013