Search results

Once I’ve posted to a thread, I no longer see that thread under New Posts, even if someone else posts to it after me. I can see it in the Activity Stream and under the area of the Forum the thread is posted in. Is this just me? Is there a setting I can flip to change this behaviour? Am I...

Planned house move (downsizing) means I’ve got to let go of my AS/400, model 9401-150. It’s a UK collection only and I’m offering it here, just for the price of a beer or two, rather than on fleaBay. This machine was released around 1996/7, it came my way around 2004 and is still fully...

I've got a Panasonic monitor that doesn't always sync correctly after hitting CTRL-ALT-DEL. I sometimes need to switch the monitor off and on several times before it displays the image correctly. Here's what it looks like before CTRL-ALT-DEL: And here's after: It's a 1980s Panasonic...

So, I’m looking at filling the empty 8087 socket in my LSI Octopus and as its 8088 runs at 8MHz, I assume it would require (at least) an 8MHz 8087-2. My question is, would I be able to fit the faster (and slightly cheaper) 10MHz 8087-1 coprocessor? I only ask because the Wikipedia details for...

Would anyone have the technical specs and/or maintenance info for an Epson SD-540 5.25" DS QD floppy disk drive? I can find very little info on Google for this drive. I'm assuming it's a DS QD 96tpi drive as I removed it from an LSI Octopus computer that had it configured as such. This is one...

Can anyone make use an IBM ThinkPad 1.44 MB 3.5" external floppy drive + case. Free to a good home, just pay the shipping (from West Midlands, UK). I've no idea if it works or not - the IT department were having a clear out and dropped it on my desk :). Case references FRU P/N 05k6187, ASM...

Oh boy, this is going to be fun, NOT. I've acquired an LSI Octopus, Concurrent CP/M-80/86 based, computer and the keyboard (manufactured by Cherry) employs foam and foil capacitive keys. As is usually the case with these 30+ year old keyboards, the foam pads have deteriorated. However...

Just spotted the following TRS-80 Model II Desk on eBay UK. It's still at £50 with no bids yet and just over 4 days left. http://www.ebay.co.uk/itm/Tandy-Radio-Shack-Model-2-computer-TRS80-desk-workstation-system-desk-70s/401391691750 Or for those who don't like following links, it's eBay...

Hi All, I’m looking for some advice or best practice on how to handle double sided disks within a CP/M 2.2 CBIOS. My CBIOS deblocking routines are currently working on just side 0. I’m using 8” DD disks formatted as 77 tracks, 8 x 1024 byte sectors per track and 2 sides – well, to be honest...

Can anyone point me in the right direction, or even provide, the parts list for the N8VEM SBC v1. The schematic would also come in handy. I've just found the PCB I purchased and subsequently mislaid back in 2009. However, most of my searches turn up details of the v2 board or come up with dead...

I’ve been slowly renovating an early 1980s British built computer that I acquired this year and thought it’s high time I posted a few pics here. The system in question is an LSI M-THREE/250 computer - it’s a bit of an ugly duckling, but it’s also one of the first business class machines I used...

I thought I'd have a play with the ZAPPLE monitor under MYZ80. I found a reasonable copy of the source here http://maben.homeip.net/static/S100/TDL/sourcecode/ZAPPLE.Z80.txt. Before making any changes to the code, I thought it I'd at least get it to compile under under MACRO-80 using Z80...

Noticed the following post in comp.os.cpm today. Sorry but the link is via Google groups Dozens of CP/M Floppy Discs, Manuals, Systems, Memorabilia I worked for Digital Research out of the Dallas Sales office in the late 70's and early 80's. When the office closed I scooped up a CompuPro...

Hi, I'm still looking for a keyboard for my NEC-APC, keyboard model APC-H25. Failing that, if anyone has the schematics for this beast (I'm lead to believe they were provided with the system manuals), I may see if I can interface some other sort of keyboard to it. If you do have either and...

Just spotted the following DEC PR/SO1 portable paper tape reader on ebay (UK) 221360579915 Thought it might be of interest to someone here. It's not mine and I know nothing about the seller - it simply came up in one of my standard searches. This seller also has some pdp-8 cards.

Hi, Last year I re-capped the Astec PSUs in my TRS-80 Model III. As advised by you guys here, I replaced the two metalized paper Rifa class-x caps with modern metalized polypropylene equivalents. The thread was here. Anyway, I’ve just acquired a non-working Digital Microsystems 816 terminal...

It so happens that yesterday was the birthday of Britain's first supercomputer, the Ferranti Atlas. This includes an interesting short video.

Just picked up two TRS-80 Model IIIs of eBay and no more than a 10 mile round trip to collect them. The seller listed just the one as "was told it was working when stored 20 years ago" which to me says it doesn't work. When I got there he had two, so I snapped the other one up hoping to get at...

I've got this old 8-bit ISA card on my "interesting to try out" list. It's a z80 based "backup to VCR" card by Autofax Corp Imager. The only problem is I've got no software for it. Can anyone help? Interestingly, a dump of the eprom show the text "'MaBr[2.4] (C) 1983-Corvus Systems"...

I've been given several sealed win95 and office97 upgrade packages from an office clearout. I don't want to put then on evilbay. so am offering them here for just the cost of shipping. If anyone is interested, PM me with your location and I'll find out what the shipping cost is (from the UK)...