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Hello folks, I am hoping to put together an M8190 (J11-AC processor) board with a General Robotics MSV-11Q memory board as I believe that this combination should work. The problem is that I cannot find details for the MSV-11Q board that I have. Most info is for a board with two sets of DIP...

Hello there you good folks, I recently picked up a Compaq III 2660, it has 640k ram only and had a 20mb conner HDD. When powered I needed to run the setup from a FD, which I did, with no real issues(It didn't come with it's disks, but I managed to download a copy). I noticed at the time that...

Hello People, After about 7 years owning a Gec 4070 Minicomputer, i'm still on the lookout for any more stuff on this British Mini Beastie. I am particularly after program listings that can be entered via front Keys and also any in depth hardware information. I really want to get this great bit...

Hi Folks, I have a Micromaster LV48 Eprom programmer from Ice Tech. It seems to have developed an issue !! If I either use the programmer on mains supply or batteries I get a Hardware error 121 on selftest. The programmer seems to work but is intermittent on testing. I've taken the thing apart...

Greetings all, I've put together a MicroVAX II from bits (mainly from Ebay). I have:- BA23 QBus M7606 MVII CPU M7609 Memory boards (X2) for a total of 16mb M7555 HDD/FDD controller board M3107 8X Serial I/O board. I also have a Seagate ST 412 HDD which is compatible with the M7555...

Greetings all, I've put together a MicroVAX II from bits (mainly from Ebay). I have:- BA23 QBus M7606 MVII CPU M7609 Memory boards (X2) for a total of 16mb M7555 HDD/FDD controller board M3107 8X Serial I/O board. I also have a Seagate ST 412 HDD which is compatible with the M7555 controller...

Hello Fellow Brits, So, no new posts for about two years, so what have you been up to? I must admit that i'm still trawling the web for more information, details, contacts with people who had any connection with my old GEC 4070 Minicomputer and it's systems. It's amazing to me that in the US...

Hello All, Does anyone in the UK have an XT (5160) compatible keyboard that they would like to sell me. I have had hours of fun resurrecting a 5160 Motherboard ( 1983 32K-8K Bios version) and can not get to the boot sequence without a keyboard !! I already have a couple of DIN AT keyboards, but...

Hello All, So now we've got a group, what are we gonna talk about? I'm still looking for anything to do with my GEC4070 (1970's) Minicomputer !! and i've been scouring the web for about the last 5 years and have contacted numerous people, but there's very little out there :(. Cheers, Alan. :)

Hi Folks, I recently won a Toshiba T3100-20 from e-bay. It works fine, it has 640K base memory, a 20mb HDD with DOS 3.3 installed and quite a bit of useful software. Even the 720K FDD seems to work ok. My question is this, i have read in various places that the memory is upgradeable to 2.6mb...

Hi Folks, Well i got hold of a Weir SMM 1500 03 03 power supply to run my GEC 4070 Minicomputer on and although all looks well i get no output :(. I've connected all the sense wires to the correct outputs and loaded up the main supply outputs and still nothing. Having taken the PSU apart i...

Ok Folks i have a challenge for you. I have 2 circuit boards made by HP, both obviously made to work together via a bus board. One is a processor board with 4k of static ram (2 x 6116 chips) and 16k (4 x 2732 eproms). It is marked as 03779-61026, also 2132-14 Rev A. The processor onboard is an...

Hi Folks, I don't know how many of you have come across this, but i thought it was absolutely brilliant ;). I've seen the originals in the Science Museum in London (UK), and also the fully finished machines that were never completed by Babbage. http://www.meccano.us/difference_engines/rde_1/...

Hi Folks, Been trying to find a manual for the HP 1615A Logic Analyser on the web and have'nt had a lot of luck. I don't really want to pay out loads of money as the analyser was fairly cheap off of E##Y ;). I would really appreciate it if someone could post a copy of the important bits if...

Hi people, The GEC 4070 minicomputer that i'm going to try to put together from about 16 panels (TTL CPU !! :D ) apparently used to run an OS called 'OS4000' amongst other things. What i would like to know is if anyone has any experience of this software? Also does anyone know where i might...

Hi Folks, If anyone has any information or parts for a GEC 4070 Minicomputer produced in the UK i would very much appreciate it. Any kind of technical documentation would be great. Thanks very much, Alan.

Hello People, I'm in the UK and have a complete set of circuit boards for a GEC 4070 (1976) Processor unit (All TTL !!) and am hoping to connect the lot together and get a working system. I also have 2 x 32k Magnetic core memory boards (for the minimum 64k) to be useable. I'm hoping to make my...