test-drb September 2003

test-drb@ccmp.vtda.org

281 participants
507 discussions

Looking for IBM Technical Reference Manual

by TRASH3＠splab.cas.neu.edu

I have in hardcopy the "IBM Technical Reference Personal Computer XT and Portable Personal Computer, 6361459. It is in a mini 3 ring binder. I don't have it scanned, nor am I willing to scan it. However, if you cannot find electronic versions, perhaps there are parts of the manual you want. If you want JUST the system board schematics, then I will scan the 20 or so pages, but it might take a while. It would be easier for me to photocopy the 20 or so pages and send them along. regards, Joe Heck

21 years

New "vintage computers" forum

by classiccmp＠vintage-computer.com

> > Doesn't another forum just dilute things even further? > > I certainly don't have time to read classiccmp, newsgroups, and... > > I don't believe it is physically possible to dilute information > further than it is diluted here. Joking, but only in part unfortunately. > > If someone wants to suffer through moderating his own forum, then > more power to him. The ''free market economy'' will decide who wins. There are a number of advantages to the web based forum over news groups and mail lists which is the reason I started the Vintage Computer Forum a while back. Of course, these other technologies are simpler and require far less bandwidth then the more graphical web forums for those that prefer to use vintage equipment to talk about vintage equipment. I'm convinced that there's room for everyone in the "free market economy" and that, in the end, everyone is a winner. Maybe I'm naive, but just I don't think it's a zero sum game. I'll mirror Jules question of "but... why?" only because the VC Forum I've been hosting is already mature, has nearly 200 registered users and appears to have almost exactly the same content as Lance's effort. In the end, though, Lance is adding to the community just like ccTalk, the VC Forum and the wide variety of other discussions out there. Congratulations, Lance, and more power to you! :) Erik Klein www.vintage-computer.com/vcforum The Vintage Computer Forum

21 years

Value of Adds Viewpoint terminals

by cb＠mythtech.net

Do Adds Viewpoint terminals have any value? I have 8 of them I no longer use or need. Cosmetically they are all rather beat. All are yellowed and dirty, with lots of pen or pencil marks on the cases and keyboards. All keyboards have all their keys, and to the best of my knowledge all 8 are in good working order (they all worked when they were last used, but that was a number of years ago). The cosmetic issues are probably nothing a good scrubbing can't improve. I don't believe any have physical damage to them. I'm just curious if these are something I should try selling, or just give/throw away. -chris <http://www.mythtech.net>

21 years

bbc radio programme about leo computers

by james＠cs.york.ac.uk

this week's "book of the week" has been "a computer called leo" which tells the story of the world's first business computer and the company, more famous for their tea shops and ice cream, who produced it. it's a little short on technical detail, but well worth a listen. this weeks programmes will be available online until at least 0900GMT on monday. http://www.bbc.co.uk/radio4/arts/book_of_the_week.shtml?focuswin -- James F. Carter http://www.jfc.org.uk/

21 years

OT? - How to run a DOS BBS directly attached to a Terminal Server

by keith＠saracom.com

Hello, This may be OFF TOPIC but I did run WWIV more than 10 years ago. My question is how to run a DOS BBS directly attached to a Terminal Server. That is without a modem. I have a PicoWeb server which basically allows one to connect a serial device directly to ethernet and comunicates via TCP/IP. It works and I can talk with it via Telnet. However I want to run a classic BBS such as WWIV. I have tried my backup copy from circa 1992 and it really wants a modem. I have tried the current version too without luck. So is there any old style BBSes which will work with a direct connection to a terminal (in my case a serial to ethernet convertor)? I would want chains.txt support so I could run the great online games. I could run WWIV with my two V.everything modems back to back but that IS overkill. Is there any other solution? Has anyone tried this? Thanks Max

21 years

PAL & RGB on Cub monitors - a partial answer, and more questions

by alan_geering＠hotmail.com

OK, I've managed to find a part answer to the question I asked a while back. (What inputs did the Microvitec Cub Monitors have?) Microvitec 653 cub monitors came in a few flavours: Shape: MS = the cub in metal case as most people are used to LS/LI = plastic casing ("structured foam" case) Input: 1451 = standard monitor with TTL inputs (BBC B, RM 480Z, Electron & Oric) 1455 = dual standard monitor TTL or 1v/75ohm video (BBC, Oric, Electron, RM 480Z, RM 380Z) 1459 = 1v p-p/75ohm video input (RM 380Z, DEC Rainbow, Crommenco 501) 1456 = Mac & IBM versions differing only in color sets There was however a Triple Standard monitor - which I would like to track down - the brochure for which statesinputs as: PAL/TTL/Analogue (1v/75ohm). This was a 20" version. Looking at the circuit diagrams for the triple standard interface I can see that what it means by PAL & 1v/75ohm Video is the following: PAL = what I would call composite video with colors encoded as PAL 1v/75ohm video = RGBS, BNC sockets for RGB and BNC socket for S which is also the PAL/Composite input (cunningly the monitor circuits also alow for RGsB) I've not managed to find a diagram of the Dual Standard interface so I can't say what the connectors look like on the back. For now I'm assuming they were just BNC sockets. Does anyone have the 1459 version of the Cub? Can they please let me know what the rear looks like. Does anyone have the 1455 Dual Standard version of the Cub? same info would be useful. Finally: Does anyone know where I could find 1455 & 1459 versions? Thanks again, Alan geering >From: ard(a)p850ug1.demon.co.uk (Tony Duell) >Reply-To: cctech(a)classiccmp.org >To: cctalk(a)classiccmp.org >Subject: Re: PAL RGB on Cub monitors >Date: Tue, 9 Sep 2003 21:52:49 +0100 (BST) > > > Forgive me, I'm new to BBC computers and associated techology > > > > What I would like to know is whether the cube looking monitor >(microvitech > > cub?) that came with BBC computers had the following: > > > > A scart input that took a PAL RGB 1v p-p signal that sync'd on green? > >No Microvitec cub ever had a SCART socket. > >There were serveral models. Most has RGB inputs, which were internally >link-selectable to be either TTL level digital (giving 8 colours on the >screen), or 1V analogue. I think all models had separate sync inputs. > >There was a model (which I have never seen!) which had a built-in PAL >decoder. This took 1V composite video. The input was a BNC socket IIRC. > >I don't know what a 'PAL RGB' signal is. PAL is a method of colour >encoding, RGB implies separate signals for the 3 primary colours. One >signal can't be both! > >-tony

21 years

Subject: trouble interfacing an HP86B to an HP7040 plotter with a serial

by swtpc＠attbi.com

I still have the homemade cable I used to connect a HP7040 to my original IBM PC in 1983. It is a DB-25S (PC end) to DB25P (plotter end). Plotter PC 1 1 2 3 3 2 4 5 5 4 6 20 7 7 20 6 This would be a null modem cable. I also found this HP link for a newer plotter http://www.hp.com/cposupport/plotters/support_doc/bpp01379.html Michael Holley www.swtpc.com/mholley > From: "RHahm" <rhahm(a)nycap.rr.com> > To: <cctalk(a)classiccmp.org> > Cc: "Vassilis Prevelakis" <vassilip(a)dsl.cis.upenn.edu>, > "John Shadbolt" > <john_shadbolt(a)talk21.com> > Subject: trouble interfacing an HP86B to an HP7040 plotter with a serial > interface > Date: Tue, 9 Sep 2003 12:51:44 -0400 > Reply-To: cctalk(a)classiccmp.org > > Hi, > > I am having trouble interfacing an HP86B to an HP7040 plotter with a serial > interface. > > I have two HP serial interfaces: standard with male DB25 connector and > 0pt.01 with female connector. > > The plotter has a male DB25 connector. > > I have connected the standard with with a gender changer and the opt. 01 > directly without success. > > I typed PLOTTER IS 10 and (the baud rate on the plotter is set at 9600)I get > an error message. > > > This is the first time I have tried a serial connection and unfortunately I > don't have any > documentation for the HP serial interface. > > Do I need a null modem for the opt. 01 serial interface? > > What am I doing wrong? > > Thanks, > > Bob

21 years

Cable wanted...

by curt＠atarimuseum.com

The C64 shares the same pins outs as the Atari 800 video, so you can use the same cables, try redmondcable.com and www.myatari.com which both sell Atari Composite 5 pin din cables. Curt > I'm in need of a C-64 video cable - it's got a 5 pin din on one end, and 3 > RCA plugs on the other (luma, chroma and sound). Anyone here have one > they'd like to part with? > > Tnx! > > g.

21 years

TI FD1000 dual 8" disk array available

by RCini＠congressfinancial.com

Please respond directly to Ryan about this item. <PASTE> Physically its in good shape, the only consmetics are a few scuffs and some of the "filter" has been removed. I was planning on ebaying it starting bids around $5-10 sometimes they take off that way, sometimes not. I originally bought the unit at an auction figuring I could get the pinout of the unit and attach to my old PC5150 but the interface seems to be scsi'ish and totally incompatible. I am located in Weston (Wausau) Wisconsin near the center of the state, shipping on the unit would probably be $30-$60 as it weighs a lot 50-60lbs unless there is someone nearby to pick it up at my house. Cheers Ryan May In a message dated 9/11/2003 8:00:24 PM Eastern Daylight Time, rcini(a)msn.com writes: > Subj: Re: Old miniframe TI FD1000 dual 8" disk array > Date: 9/11/2003 8:00:24 PM Eastern Daylight Time > From: "Richard A. Cini, Jr." <rcini(a)msn.com </cgi-bin/compose?curmbox=F000000001&a=2cc77026fe5278c1ae2a4179cb6b64a5&mail to=1&to=rcini(a)msn.com&msg=MSG1063332327.92&start=52005&len=2824&src=&type=x> > > To: RMay635703(a)aol.com </cgi-bin/compose?curmbox=F000000001&a=2cc77026fe5278c1ae2a4179cb6b64a5&mail to=1&to=RMay635703(a)aol.com&msg=MSG1063332327.92&start=52005&len=2824&src=&ty pe=x> > Sent from the Internet (Details) > > > > > Ryan: > > I do not know anyone off hand. But, I can share this info with a group of > computer collectors to which I belong. It would help me if you could tell me > where the unit is located, its condition and how much, if anything, you are > looking to be paid for the unit. > > Rich > > > >From: RMay635703(a)aol.com > >To: rcini(a)msn.com > >Subject: Old miniframe TI FD1000 dual 8" disk array > >Date: Thu, 11 Sep 2003 15:48:19 -0400 > > > >Hi, if you or anyone you know is interested in a TI 960? Floppy disk array > >FD1000 email me back. > > > >Cheers > >Ryan

21 years

Betr.: (no subject)

by e.huininga＠sozawe.groningen.nl

Can you remind me what this thread was about? I can't remember :-) Cheers, Eelco >>> <davidmercier(a)newengleng.com> 09/08 3:50 >>> I do have pinouts for eeco 9301 if you still need it. David A. Mercier New England Engineering Services 25 West Street Stafford Springs, Ct. 06076 (860) 684-5980 Fax: 684-5982

21 years

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test-drb September 2003