test-drb October 2004

test-drb@ccmp.vtda.org

245 participants
540 discussions

by ron.hudson＠sbcglobal.net

I remember I flew into LAX(i think)... LAX is connected to the nearest freeway via a longish branch. So I came out of LAX, "Turned Right" (toward the ocean- west) at the branch - went a distance, "Turned left) (south) on some street - and found on the right hand side a very "Weirdstuff" like place? That same street continues and becomes another freeway that I had to take to get to my work-site in Compton. Anyone know where I was? Any other electronics-junkyard type places in LA? It has just occurred to me that LA is only 3 hours away...Road Trip! :^)

19 years, 6 months

Need pinouts for MDB Systems DLV11J serial line interface

by vcf＠siconic.com

I've got a serial line interface in this LSI 11/23 system I've got here. It's made by MDB Systems and is model DLV11J. I've got the manual for the DLV11 but it gives the digram for one big 40 pin Berg style connector, whereas the DLV11J has 4 10-pin Berg style connectors. Does anyone have the documentation for this? And now for a really stupid question: Can the 11/23 run RT-11? Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

19 years, 6 months

"Weird Stuff" type place in LA

by chobbs＠socal.rr.com

> > >Date: Sun, 31 Oct 2004 09:32:36 -0800 >From: Ron Hudson <ron.hudson(a)sbcglobal.net> >Subject: Geek-Stuff places in LA >To: Classic Computers <cctalk(a)classiccmp.org> >Message-ID: <DACCB0B6-2B62-11D9-85C8-000393C5A0B6(a)sbcglobal.net> >Content-Type: text/plain; charset=US-ASCII; format=flowed > >I remember I flew into LAX(i think)... LAX is connected to the nearest >freeway via a longish branch. >So I came out of LAX, "Turned Right" (toward the ocean- west) at the >branch - went a distance, "Turned >left) (south) on some street - and found on the right hand side a very >"Weirdstuff" like place? >That same street continues and becomes another freeway that I had to >take to get to my work-site in Compton. > > Sounds like Artesia Bl (which becomes the 91 Freeway)....there is a "PC Recycler"-type place on Aviation Bl. just south of Artesia (it was in the shopping center in the southeast corner of that intersection, if I recall correctly). They buy up a lot of old business PC's and equipment, and resell them. But the name escapes me.

19 years, 6 months

"Eagle" CPM machine, all-in-one, w/manuals needs a home

by wpileggi＠juno.com

A friend has an Eagle all-in-one machine that runs CPM. 8080 or Z-80, 64K RAM, 2 floppy disk drives. 1 original, 1 copy of manual. Software? Sort of resembles Radio Shack model 3 - monitor, keyboard and drives all in one case. Working status unknown - I only read through the manual - it's in his storage room. Located in PA. 19001 weight ~30 pounds? Bill ________________________________________________________________ Speed up your surfing with Juno SpeedBand. Now includes pop-up blocker! Only $14.95/ month - visit http://www.juno.com/surf to sign up today!

19 years, 6 months

new find: an Intel MDS 800

by chenmel＠earthlink.net

I recently acquired an exciting new (old) machine, an Intel MDS 800, known as the 'Blue Box.' It's the 1975-era 8080 based box that kicked off CP/M. My particular machine was intended as an 8051 ICE box, it has the 8051 emulator pod and external PROM programmer. The system came complete with a big box of what appears to be complete docs and a lot of software on 8" disks. There are four or more different versions of IRIS, a disk labeled 'CPM' which I hope is a boot disk, and multiple versions of other Intel tools, including the targeted 8051 development tools. I paid a fair amount for this system, and am going to go slowly at bringing it up. It's been stored a long time and there's a troubling amount of surface rust on some of the screw heads and exposed hardware. I've popped it open and some of the ICs (mostly TTL) have corrosion on the leads. I have a few opening questions for others who have restored hardware in similar condition: should I remove the corrosion on IC leads, or do I run the risk of 'removing' the leads. The circuit boards look really good, so worst-case I will replace some of the chips. What is the opinion about this kind of servicing? The chips in question are all (so far as I have investigated) common 7400 series (some Schottky) TTL gates. Do people consider it as 'damaging' to the 'credentials' of a piece of classic hardware to replace chips with others with significantly different date codes? This is going to be a long term project for me, I fear, because I want to do it right. This machine has a built-in CRT display so I might be forced to do some (something I almost always refuse to do these days) video monitor troubleshooting. The machine has a built-in 8" floppy, which I assume is the low-density original, and an expansion case (third party) with two newer and higher density drives. Is there a source for new or NOS 8" floppies out there? One thing for certain that I'll be doing early after getting this machine up and running is a backup of all the media that came with it (a fair amount, probably 30-50 disks, many of which are Intel branded originals). Lots more questions and comments likely to come on this project. Scott

19 years, 6 months

PDP-11/34 in the UK

by classiccmp＠blueyonder.co.uk

I have listed a PDP-11/34a on ebay - I have had this system since leaving college 17 years ago and it has been well looked after. Unfortunately I now need the space, so the system is up for sale. The buyer will need to collect in a van, as this lot is bulky, heavy and fragile. You can see details and some photos at: http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ViewItem&rd=1&item=5135356834&ssPageName=STRK:MESE:IT This is a complete system with drives, terminal, manuals, cables, spares etc. There is no reserve and bidding opens at 40UKP. ---- Francis

19 years, 6 months

Need pinouts for MDB Systems DLV11J serial line interface

by pete＠dunnington.u-net.com

On Oct 30 2004, 17:02, Vintage Computer Festival wrote: > > I've got a serial line interface in this LSI 11/23 system I've got here. > It's made by MDB Systems and is model DLV11J. I've got the manual for the > DLV11 but it gives the digram for one big 40 pin Berg style connector, > whereas the DLV11J has 4 10-pin Berg style connectors. > > Does anyone have the documentation for this? Not for that make/model, but for a DEC DLV11-J, yes. The DLV11 is a single RS232 interface, by the way, and the DLV11-J has 4 serial lines. Looking into each 10-pin socket, the pinout is: _____________________ | | | 9 7 5 3 1 | | | | 10 8 6 4 2 | |_____________________| 1 UART clock in or out (not normally connected) 2 Signal ground 3 Tx + 4 Tx - 5 Signal ground 6 Index position - no pin 7 Rx - 8 Rx + 9 Signal ground 10 +12V via fuse F1 (if fitted) The receivers are differential. If you're using them for an RS-232 device, connect a link between pin 7 and one of 2, 5, or 9, to make the RX- line ground-referenced, then use 3 for TxD and 8 for RxD. Loopback connectors for testing usually jumper 3 to 8 and 4 to 7 (RS-422 mode) but sometimes jumper 3 to 8 and 7 to 9 (RS-232 mode). On a DEC DLV11-J, there are several wirewrap jumpers to set baud rate, word length, address, etc, and also two to set channel 3 to the console address, if required. Channel 3 is the connector nearest the left as you look into the back of a machine, with the board fitted component-side up. The jumpers are labelled C1 and C2; link X to 1 if you do want the console on channel 3, or X to 0 if you don't. There's also a set of three labelled B/X/H which determine what happens if you send a break if Ch.3 is the console. Jumpering X to B makes the system boot (it grounds the BINIT line), jumpering to H makes it halt (grounds the BHALT line). Leave it disconnected if you don't want either action. > And now for a really stupid question: > > Can the 11/23 run RT-11? It will run it very well. Several of my 11/23s came with RT-11 of one flavour or another. -- Pete Peter Turnbull Network Manager University of York

19 years, 6 months

Who is going to VFC 7.0?

by swtpc6800＠comcast.net

I am staying at The Residence Inn in Mountain View. (The official hotel of The Vintage Computer Festival .) I have not been to the San Jose area in about 5 years. What is interesting there? (Geek stuff). Michael Holley www.swtpc.com/mholley

19 years, 6 months

teco macros for teco=emacs?

by ron.hudson＠sbcglobal.net

This message really needs to go to the "rsts mailing group" but I haven't found such a group yet... :^) so I am calling again on the Teco wizards in the two groups mentioned above. Emacs was originally a bunch of teco macros right? teco/vt is a bunch of teco macros..... Could one setup teco/em ? a bunch of teco macros that emulate some simple useful subset of emacs?

19 years, 6 months

OT mail spam question

by pete＠dunnington.u-net.com

On Oct 30 2004, 6:17, Vintage Computer Festival wrote: > > I just moved my mail server to my internal office network. The IP block > I've been assigned apparently used to be used for dynamic DSL users. The > problem is, at some point someone used one or more of these IP addresses > to send out spam, enough so that my entire Class C block is blacklisted in > some database. You don't have a Class C, you have a block of 8. Looks like a DSL to me :-) In fact, the netblock which your addresses are part of *is* used for DSL lines, including dynamic ones, as far as I can see -- and the netblock as a whole is bigger than a Class C. > I'm getting reject messages occasionally when I try to send someone > e-mail, like so: > > ----- Transcript of session follows ----- > ... while talking to smtp.secureserver.net.: > >>> RCPT To:<mike(a)sccpc.com> > <<< 553 66.120.4.* mail rejected due to excessive spam (Spam received from > 66.120.4.201) > 550 5.1.1 <mike(a)sccpc.com>... User unknown > > It's a very small percentage of my mail, but it's keeping me from > responding to people sending me inquiries in some instances. > > How the *hell* do I track down what fuckwit is blacklisting my address? It's not in the obvious places like MAPS, so short of asking Google for all the blackhole lists, your best bet is to ask one of the sites that's blocking your mail. It could conceivably also be something to do with your broken DNS. The name servers don't return reverse lookups, and don't list an MX record. If you're running your mail server from a DSL line, that's the risk you take. It's too easy for spammers to take a short-term contract, get an address, abuse it, and disappear before the ISP can do anything about it. It's also common for inexpert users to misconfigure SMTP servers to be insecure in a spectacularly large number of ways. The easiest way to counter such problems is to list dialups and dynamically-allocated IPs (or the blocks they're in) in one of the DULs. Often the address space owner will do that. You could try asking Pac Bell if they have. The proper way to do it is to have your mailserver talk to a "smart host" that is well managed and hasn't ended up on a blackhole list. If you're bothered about the possibility that it might go down at a time beyond your control, and you use a recent version of sendmail, you can specify a fallback smarthost, I think. You ought to upgrade anyway, what you're using is fairly old [wonders if he should hide his own headers on this email ;-)]. Several ISPs will let you buy mail relay rights for very little money, and you can use SMTP AUTH to be able to talk to servers that know you, even when you're relaying through them. -- Pete Peter Turnbull Network Manager University of York

19 years, 6 months

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test-drb October 2004