test-drb August 2007

test-drb@ccmp.vtda.org

221 participants
459 discussions

Suggestions for rackmount floppy mounting

by ajp166＠bellatlantic.net

> >Subject: Re: Suggestions for rackmount floppy mounting > From: "Chuck Guzis" <cclist at sydex.com> > Date: Tue, 14 Aug 2007 12:59:35 -0700 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >On 14 Aug 2007 at 11:11, Mr Ian Primus wrote: > >> Well, if you want the cheap-and-dirty way to do it (my >> favorite way!) you could use a piece of 1/4" plywood >> as a faceplate, cut square holes in it the size of a >> full height 5 1/4" drive, and scavenge some drive >> frames from junked PC mid-tower cabinets. Screw the >> drive frames to the back of the plywood, and paint the >> plywood to match the cabinet. The weight of the floppy >> drives shouldn't be enough so that it needs any more >> support than a few rack screws drilled through the >> edges of the plywood. > >Reminds me of the old-time custom of making rack panels out of 1/4" >masonite. I was thinking about 1/4" polycarbonate and a router (the >machine tool, not the network gear). I could make the side rails >from the same, just solvent-cemented to the front. > >I'm not sure how, using the tools I have to carve big holes in a >thick aluminum blank panel plate. Would a 3 HP router and a carbide >bit do it? Ideally, I suppose a vertical mill would be the "right" >tool, but I don't have access to one. Hand held saber saw (aka jigsaw) with metal blade does fine. I made the disk shelf for my PDP11 (RX33, RD52s, uVAX2000 powersupply, enable/writelocks buttons from BA123). Front plate was a blank and the shelf was another sheet of .100 Aluminum plus some supports salvaged from various older defunct machines. Allison > >Cheers, >Chuck

17 years, 8 months

DLTtape IV cleaner?

by silvercreekvalley＠yahoo.com

Does anyone have a spare/old cleaner tape for a DLTtape IV drive? I have one of these drives installed in an old Sun but the 'head clean' light has now illuminated. Thanks. Ian. ____________________________________________________________________________________ Sick sense of humor? Visit Yahoo! TV's Comedy with an Edge to see what's on, when. http://tv.yahoo.com/collections/222

17 years, 8 months

DLT cleaning tapes

by jack.rubin＠ameritech.net

Can't find any DLT IV tapes, but I have 3 DLT 1/ DLT VS cleaning cassettes - one almost used up, one half used and one brand new one. Anyone need these? Yours for the cost of postage from 60091 (Illinois). Jack No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.11.17/951 - Release Date: 8/13/2007 10:15 AM

17 years, 8 months

Need some phenolic G pattern Vectorbord

by swtpc6800＠comcast.net

I need some small pieces of phenolic G pattern Vectorbord(tm) for my Vintage Computer Festival exhibit. The G pattern has holes on 0.1 by 0.2 inch centers. I need pieces about 3/4 by 1 1/2 inches (or larger). Here is a photo of a sample. http://www.swtpc.com/mholley/MITS/VectorBord_G.jpg I will trade or pay for it. Does anyone know of someplace that still stocks it? I can reuse old board. I will be reusing the board in the picture. Michael Holley www.swtpc.com/mholley

17 years, 8 months

Prime minicomputer simulator?

by doug.jackson＠ewa-australia.com

Sellam - When I was in school, we had a perfectly functional PDP 11/45 with VT52 terminals (about 16 or so of them). The machine was in the computer room, with all of the hardware accessible (I remember getting into strife when I wrote a program to output human readable text strings to the PTP......) One semester break, they rolled out the DEC machine, and rolled in a Prime. It was horible, and none of us actually got any useful work done for the first couple of months, while we came to grips with the new operating environment. I can't actually say that it was nicer to use than the PDP 11.... It was newer and shinier. (And it lacked the paper tape punch) In fact, I would suggest that the system was so despised by its users, that they had to put it into a cage at the back of the room, because people kept resetting it. The cage didn't work, because somebody discovered that you could still use a long broom handle to hit the reset switch..... Makes you wonder about the sanity of replacing a system that could be kept out in the open, where people didn't muck with it, because it "Just Worked" (tm), with another system that was so despised that users wanted to turn it off? Sorry, no, you won't find an emulator from anybody who enjoyed the DEC hardware..... Doug

17 years, 8 months

DEC Rainbow 100 Plus CRT

by les＠hildenbrandt.com

You might try taking your CRT to a television repair shop and asking to have the CRT "rejuvenated". There is a piece of equipment they may have which will bring back the brightness on your CRT for quite some time. My experience has been one to two years added life the first time the process is used. Additional applications are less successfully. Here is a link to the equipment used for this process on ebay. I have this same piece of equipment and have done hundreds of CRTs with it. http://cgi.ebay.com/Beltron-System-Picture-Tube-Restorer_W0QQitemZ290149557… There is another type of equipment which is made for the same thing which works by sending a spark (high voltage discharge) between the elements in the CRT, I have destroyed picture tubes with that type of equipment. Good luck! Les

17 years, 8 months

Large computer rescue - any collectors in the VA/PA/DC/WV/NC area?

by wmaddox＠pacbell.net

I am arranging a large vintage computer rescue, and will be on-site Thursday and Friday to inventory the equipment and make arrangements. There will be scrappers coming next week, so time is off the essence. From the most recent photos I have been sent, it looks like there may be more material there than was previously indicated, and possibly more than I will be able to handle. It is likely that I can set aside material for other collectors. I would be looking to get firm commitments over the next few days while I am on-site, as it may be difficult to get the owners to hold on to it otherwise. Material that may be available include Modcomp IIs, IBM 729 keypunch, 9-track tape drives, and possibly some Honeywell gear. Please contact me if you have a serious interest and ability to remove this sort of gear, about 4.5 hours out of DC. -- Bill

17 years, 8 months

SciFil Cons - UK retro show thoughts

by Billy.Pettit＠wdc.com

Liam Proven wrote: I myself would probably tend to edge toward making it a bank holiday long event, with an evening programme of talks and discussions, along the lines of an SF convention, to encourage and foster the social side of it. -- Second reference I've seen on the list to science fiction conventions. I'm curious. How many list members have been to a sci-fi convention or even know about them? Anybody been to any WorldCons, Westercons or EasterCons? I know Chris Garcia is active in fandom. Anybody else? Semi-OT since many of the cons are heavily computer/robot leaning events. In the early days, it was about the only place that computer geeks could gather and be respected as peers. Billy

17 years, 8 months

EF360U CMS Enhancements Parallel External 5.25" Floppy Drive

by lynchaj＠yahoo.com

Hi, Does anyone have the DOS drivers for the EF360U CMS Enhancements (or CMS Products) Parallel External 5.25" Floppy Drive? If so, please post them or send them to my email. I am looking for them as part of a request on USENET comp.os.cpm for a portable external 5.25" floppy disk drive to recovery legacy data from vintage microcomputers. Thanks in advance if you can help. It is much appreciated. Andrew Lynch

17 years, 8 months

SGI Onyx2 Reality Monster For Sale

by nathank＠gmail.com

Located in a climate controlled warehouse in Santa Clara, CA Unable to Power up to get HINV, sorry. Silicon Graphics, Onyx2 Reality Monster 5 Racks, one with MMSC Display (5 MMSC Modules) 4 x 18GB IBM Hard Drives 4mm Tape / exobyte 8 mm Tape / CD Rom 16 Processors (??? Mhz) 12 GB Ram 6 Graphics Pipes 4 x RM-9 per pipe Infinite Reality 2 Graphics Engine 6 x GE-16 6 x DG5-2 6 x xtown 6 x ktown Craylink & Crosstown Cables, Monitor Connection Cables Any reasonable offer considered. -Nate

17 years, 9 months

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test-drb August 2007