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Hello, Since VCFMW is coming up in a few short weeks, I've been spending a decent amount of time getting my hardware in order. One such piece of hardware is my Otrona Attache CP/M luggable. For the most part, it works perfectly fine. Keyboard, PSU, CPU, floppy drives, etc... all seem to work...

Hello, I have spent the last couple of months messing around with CP/M internals. I feel like a have a pretty good grasp on how file I/O works, except for one certain situation. Most user programs don't use it, but the CCP does when it processes SUBMIT files. It goes a little like this: The...

Hello! My efforts to assemble a fully functional Heathkit H11 display in time for VCFMW has... gotten stuck in the mud. A few years ago a posted a few threads about my efforts to get this system to work. I thought I was successful, but apparently not. I am not sure I will be able to diagnose...

Hello, In my quest to get some sort of high capacity storage for my PDP 11/23, I have turned towards the later MFM based controllers. As of right now, the RL drives are on the backburner for having too many issues to get running right now (sand will do that to you, I guess). Instead, I got my...

Well, today I have finally managed to get my hands on some "larger" PDP-11 hardware. The ad I picked it up from was originally was originally only for the drives, but a system unit, rack, media, and cabling ended up being included to. All in all I ended up driving home with: A 3rd party chassis...

Hello, I recently ordered a Z80 card for my IBM PC off of eBay. I have used Z80 cards on my Apple II, but as a fan of the CP/M operating system, I thought it would be interesting to be able to run it on my IBM PC. The board is labelled "RUN/CPM/Z80" and appears to be manufactured by...

Hello, Normally this is the kind of thing that I debug on my own time by my self, but I am kinda on a time crunch (2 days to VCFMW) and need some help. Two days ago my ANS 500/132 was working perfectly fine. I had just pulled it out of storage and had booted it up multiple times that day. It...

Hello, Over the past couple of days I have been trying to get one of my Pentium PC's hooked up to a 8" disk drive system that I cobbled together using some parts I had gotten earlier this winter. It consists of two Mitsubishi M2894-63 disk drives inside a Sperry-UNIVAC case. As far as I know...

Hello, For the last few days, I have been trying to get my hands on a boot disk for RT-11 in the format of a TU58 tape. After doing to looking, it looks like there are no RT-11 boot tape images online for some reason, so you need to create your own. I already read through this thread, but I...

Hello, Over the last few days, I have been trying to get the Heathkit H11A I have running again. I don't have any of the documentation and was not able to find any online, nor do I have any experience working with LSI-11 systems. I'm hoping to get it working to run something like RT-11 or...

Hello, I have a decent amount of IBM S/36 5364 floppy disks that I would like the image, preferably using a late-PC clone with a 5.25 floppy drive. I usually use this system, along with ImageDisk, to create or archive disks for various other systems I have, like CP/M machines or TRS-80s. I was...

Hello, Last weekend I went to an estate sale for an old Sperry-Univac employee. While I was there, I picked up, among other things, a Ferguson Big Board system. It has been stored in the corner of the garage for what looked to be the last 30 years, and was hooked into a Sperry-Univac brand...

Hello, I recently bought a MicroVax II in a lot I picked up. I have been trying to get stuff off the console, which I have got working using my DecWriter II LA36 and a BCC08 cable. The only problem is that it does not boot, but instead comes up with an error. When I first turn it on, it...

Hello, Last week I picked picked up a lot of old DEC equipment from an estate sale. Along with a PDP 11/73 and a MicroVax II, I also got a DECWriter III. I brought it home and powered on, the fan spun up and it buzzed like my functional DECWriter II does, but no lights come up on the...

Hello, The MCB-1 that I bought off of Ebay just arrived, and from just eyeballing it, it seems in decent shape. The seller stated that it did not work, which is fine, but I have cannot find documentation, or even what I need to power this thing online. The back is also covered in rework wires...

Hello, As I continue to fix up my 5360, I have ran into the issue where the belt broke on the "A" SR10 drive. It has the numbers "1615379" written on it but no other identifying marks. It is a firm belt that is 11/16 in. wide and 2 1/2 ft. long. I have no experience finding replacement belts so...

Hello, Since it is warming up in my area, I have decided to dig the IBM 5360 out of my garage and fire it up, but I have a few questions before I do. I would like to power it on but not have any of the 2 (massive) hard drives powered on right now. They need a lot of work and I just want to see...

Hello, A few months ago I picked up a Commodore CBM 8032 and unsurprisingly it did not work, as the power supply gave out no voltage of any kind. About a week ago I finally got around to trying to diagnose the problem and after a bit of troubleshooting it was determined that there was an break...

Hello, Earlier today I went to pick up a nice IBM System/36 5360 from someone down in Milwaukee. A few hours ago I finally got the beast home and in my garage, and it has been an "interesting" ordeal... First thing first the machine did survive in one piece, thought the diskette magazine...

Hello, Earlier today I dug out my IBM 5150, Model F Keyboard, and Color Monitor to work on it. Whenever I would boot it up it would tell my that there is a bad chip in bank two and then display "Parity Error 1". I reconfigured the DIP Switches and limited the computer to 128kb of RAM. After I...