test-drb March 2008

test-drb@ccmp.vtda.org

209 participants
369 discussions

FS: QBUS boards, 4K memory boards, Sharp PC-3000 items

by listmailgoeshere＠gmail.com

Hi list, I have the following for sale: 1) 4 * QBUS board: DEC "A/D FOR 1103 5012094E-P2" DEC "4 CHANNEL D/A A6001 5012107 DP4" DEC "PROG REAL TIME CLOCK M7952 5012108B" DEC "M9060 5017109" load board 2) 2 boards marked "4K MEMORY BOARD FOR 118 NICOLET INSTRUMENT CORP 000-7488-04 10/14/75" Each one contains 40 ICs marked "TMS 4060JL BP7901" and then 15 chips' worth of 74-series logic. One of these boards seems to have been used for spares or something, as it's missing all its resistors, capacitors and one of the TTL ICs. The connector on these is an 86-way 0.1" edge connector. 3) The original box and manual, plus original Sharp (still boxed) Laplink cable, for a Sharp PC-3000. There is a PC-3000 *in* the box, and you can have that too, but it's got a smashed screen. Probably still works other than that, no promises though. There's also the (likely unobtainium these days) adaptor from the PC-3000's mini-serial port to an actual DE9 connector. Please make an offer by private mail if you want any of this. I'll ship anywhere, but you pay the shipping. Items are located in West Yorkshire, UK. Ed.

17 years, 1 month

Research Unix v9, v10

by slawmaster＠gmail.com

I've been thinking about some of the later versions of Research Unix, such as v9 and v10. If I could track down install tapes/disks, would I be able to run it on my VAXstation 4000-60? It seems that post-v7 didn't spread very far, so I guess I won't be too surprised if nobody knows :( John -- Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn

17 years, 1 month

microvax 3800 available in NE ohio

by vax9000＠gmail.com

Hello people, I am dumping my small collection. If anybody is interested and is able to pick it up, you are welcome to get it. I do not ship or store. It was a complete microvax 3800 (upgraded to 3900) but I took the KA655 to fix my barebone 3900. You get the computer with RA7? DISK, DSSI disk controller, memory, ethernet card, tape card and tape drive. Plug in a KA655 and it is ready to go. vax9000 ----------------------------------------------------------------------------- Ever watched "American Beauty"?

17 years, 1 month

Looking for a M8330 or a couple of SN74194's

by RodSmallwood＠mail.ediconsulting.co.uk

Not only did Cricklewood have them, but they arrived Saturday morning. That effected a partial fix. The timing generator is a string of four bit shift registers clocked with 20Mhz. Various combinations of their outputs are used to set and reset bistables made out of cross coupled 7440's. As the problem I'm fixing is you can't load memory, which is a one shot operation, its slow old work. A spare 8330 would confirm if that's where the problem is and I expect would speed up the repair on the current one. I'll continue with fixing it and keep an eye open for a spare. Getting one from the US would be an option. I also return all systems to working order. Apart from a couple of VT420's with ticking SMPSU's everything I have restored runs. (Three VAX's, Two alphas, a Rainbow 100+, DECMateII, Pro350, Pro380, a DS3100, a VS3100 and assorted LA printers and VT terminals) Rod -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Tony Duell Sent: 28 March 2008 22:52 To: cctalk at classiccmp.org Subject: Re: Looking for a M8330 or a couple of SN74194's > > Hi Tony > I agree that the concept of originality is important in what we do. > The system I have is original in the sense that all the parts are from > the right era. However the current configuration is not that as stated > on the factory label. You could also say that any item with a If this is the machine I think it is, I know not only the chap you got it from, but also the owner before that. IIRC, it originally had a TU56 (single drive versiun, and no I don't mean a TU55) which is currently on my desk, hooked up to my PDP8/e. And the RX8/e is not original. If you look at one of the CPU logic boards, you'll see one of the chips (I forget what) has been replaced. I did that over 10 years ago to cure a problem with the top 4 data lines in some operation or other. The TU56 was 'payment' for that repair... > date of later than the manufacturing date and not the result of a > repair or upgrade is not original. True, and some museums, alas, take it that way, and refuse to instal replacement parts to keep their machines going, even if said parts are contemporarty with the machine. Personally, I like all my classics to run. However, I also like to use as few spares as possible. If your clock generator was missing, or physically cracked in half, or... then I would agree you need an M8330 board. But if you can get your old one to run again, even by using more modern parts (I would have no problems fitting LS chips if they would work electrically, for example), then I'd rather keep the spare board for somebody who really did need it. > > Thanks for the tip re Cricklewood I will contact them. They may only have LS or something like that. As I said, I needed some 7495s, a rather oscure shift register chip that I couldn't find anywhere. They had 74LS95, which worked fine in my HP9820. OK, not original, but at least I can use the machine again. -tony

17 years, 1 month

PDP 11 RL11/01 Address confusion.

by doug＠stillhq.com

Hi Everybody I was reading some doco last night (specifically the DEC RL11/01 Disk Subsystem Training Handout), and I am confused. (That is nothing new...) In the "Subsystem commands section", the addresses specified for DAR and CSR are 774404, and 774400 respectively, but in the back of the document, under the 'toggle in programs' section, the DAR and CSR are shown as being at 174404 and 174400 respectively. Hmmm. I see three possibilities: 1. I have (re) discovered a documentation error - I wonder if DEC, no, HP, no Compaq, would be happy for me to submit an amendment :-) 2. The hardware throws away the upper bits so both references are correct. Hmmm Possibly not :-) 3. There is some other stuff happening that I missed... If anybody could shed some light on this I would appreciate it. The background to the problem is that I can not convince my shiny, wonderful, (and noisy) DL01 to perform the seek test - Me thinks there is a problem.... Doug

17 years, 1 month

PDP11-04 available in Cleveland, Ohio, USA for $100

by vax9000＠gmail.com

This machine is not mine, which has been mine for a while. Somebody bought it but left it in my basement for the last two years. I can't store it for him any more, but his email stopped working and I can not find him. I sell it with the price he bought it from me, in case that he comes to me for it in the future. You are expected to pick it up. Otherwise you must arrange shipment. vax, 9000

17 years, 1 month

Neat find (in my own junk bin!) - NS 8073

by doug＠stillhq.com

Hi I saw a message on the classic computer list in 2003 from Ethan saying that he had a RB5X robot controller with a 8073 SC/MP controller on it. The thread degenerated into a general car discussion from what I have been able to determine. Today, I received my INS8060 and INS8073 CPU chips from Unicorn - The 8060's are easy, I have been able to find tons of doco, and will be producing a couple of SC/MP blinken lights and swiches systems (but not with 2012 ram chips ;-) ) shortly - That's the easy bit. I am very interested in the INS8073 (with Tiny Basic onboard), and have so far come across a PDF of the 807x (8070/8072), as another spare time consuming system - My questions are; 1) Has anybody got a reference implementation for the 8073 - I suspect that it involves a 4Mhz xtal, and a RS232 line driver/receiver connected to SA (as RXD) and F1 (as TXD) - that can be breadboarded easily, but the real secret is what address will it be expecting the external 6164 ram to provide the 8k of massive storage... 2) Did anybody end up reverse engineering the RB5X board - in the words of a somebody wiser than me -- "That'l do in a pinch" 3) Does anybody have the basic reference guide that indicates the allowed word lists for this part? Thanks, Doug Jackson

17 years, 1 month

Caetron and Farallon

by steve＠radiorobots.com

Anyone have a pile of lit from either of these? Thanks, Steve

17 years, 1 month

A simple request?

by tsw-cc＠johana.com

Lots of people mention devices (of all types) that are in some state of transfer (for sale, for a good home, need help in moving, etc.). While I appreciate all of these informative descriptions, I am loathe to respond since I don't know if I could be of any help due to distance. I would like to recommend that those requesting assistance mention their locale. We here in the USA have these nice devices called ZIP codes which are quite helpful. In other parts of the world, similar postal codes exist, and along with a country would indicate to the casual reader (like me) as to what level of participation they could achieve. Basically I don't have a need to respond to a request for assistance for moving a large piece of equipment that is 3000 miles from my home. Thanks. ____________________________________________________________________________________ OMG, Sweet deal for Yahoo! users/friends:Get A Month of Blockbuster Total Access, No Cost. W00t http://tc.deals.yahoo.com/tc/blockbuster/text2.com

17 years, 1 month

NEC APC cctalk Digest, Vol 55, Issue 49

by trebor72＠execpc.com

cctalk-request at classiccmp.org wrote: > ------------------------------ > > Message: 4 > Date: Sat, 29 Mar 2008 08:53:04 -0700 (PDT) > From: Chris M <chrism3667 at yahoo.com> > Subject: Re: Anyone got a NEC APC > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <492893.16798.qm at web65503.mail.ac4.yahoo.com> > Content-Type: text/plain; charset=iso-8859-1 > > I have 2. > snipped Don't think my > disks are worth a lot either, haven't managed to boot > off any of them. This too is a bummer, because one of > my units has a rare card along with a set of 5 1/4" > drives (external) and the driver software is on one of > them. Butler Flats Associates was the vendor. > > --- "Robert J. Stevens" <trebor72 at execpc.com> GOOD E-MAIL wrote: >> got my NEC APC running If you want to send me them [send your address to above E-Mail] and they are 8" I can test them. Then I can send you a couple back if they Don't boot to test your machine with or else Make Bootable copies of yours to send back with your originals. If they boot on my Machines then you'll know where the problem lies. I've got both CP/M-86 and MS-Dos 2.0 that boot up both of my Machines. Bob

17 years, 1 month

← Newer
1
2
3
4
5
6
7
8
...
37
Older →

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb March 2008