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  1. RUN/CPM/Z80 Card for the IBM PC

    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...
  2. IIRC correctly the Osborne 1 floppy drives are...

    IIRC correctly the Osborne 1 floppy drives are not standard, but instead are powered off of the ribbon cable. By pulling apart the Osborne 1 floppy cable and having it branch off to the standard...
  3. Hopefully if I have time tonight, I can give...

    Hopefully if I have time tonight, I can give replacing the SMD caps a try. I have done it for a few of my other Macs, and I think I have enough for the entire board. I will also see if I can remove...
  4. Need quick help with my Apple Networrk Server 500/132

    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...
  5. Alright, small update I checked the voltages...

    Alright, small update

    I checked the voltages on the disk drive I was using, and it appears there is a faulty component. 5V was getting pulled down to ~3V and 24V was getting pulled down to almost...
  6. Sorry for not responding for long, I have been...

    Sorry for not responding for long, I have been having a very busy week, thank you to everyone who responded and messaged me.

    So tonight I took another crack at the Mitsubishi drives. I took down...
  7. Mitsubishi M2894-63 8" Floppy Does Not Respond To Controller

    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....
  8. I had to do this too, but it is easy enough just...

    I had to do this too, but it is easy enough just to disconnect the jumpers on the bottom of the keyswitch, which can be accessed by just opening the front door of the machine, and swapping "SERVICE"...
  9. I have a S/36 5360 in more or less the same...

    I have a S/36 5360 in more or less the same configuration as your is in. While I have not used it this year, and it wasn't 100% functional the last time I used it, it can still more or less work.
    ...
  10. Sweet, didn't know that existed. I'm going to...

    Sweet, didn't know that existed. I'm going to have to swing around there sometime. I think I will be in that area on Friday. Anybody know the hours/days when they are open?
  11. I used the method you described, and was able to...

    I used the method you described, and was able to create a disk the booted on SIMH and my H11A, but something is wrong. It functions normally when I use it under SIMH, but when a do a DIR command it...
  12. Creating a RT-11 TU58 Boot Tape Image

    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...
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    A small continuation of yesterdays post. After...

    A small continuation of yesterdays post. After checking all of the voltages and adjusting the pots, I put the CPU card in to see if I could get any activity. The first thing I noticed is that the...
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    1,341

    Alright, so I just got finished checking out the...

    Alright, so I just got finished checking out the power supply, and everything seems fine.

    53030

    When I tried to take the fuse out and check it, the entire fuse holder crumbled. I was able to...
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    I was originally going to try it with the M8047,...

    I was originally going to try it with the M8047, but it needs a little bit of work done on it. Both the onboard fuse and the fuse the original owner bodged into it have been blown for undisclosed...
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    1,341

    After doing to reading on the sources, I have...

    After doing to reading on the sources, I have decided that I am going to start by trying to get a ODT prompt using the CPU module and the M8017AA modules. The M8017AA module has a number of wire...
  17. Replies
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    1,341

    Heathkit H11A Repair

    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...
  18. I use a model similar to the one shown in the...

    I use a model similar to the one shown in the picture (Logitech G710). IMO I think it is pretty great, nice and clickly but not deafening like a Model M or F. The LEDs are usually adjustable on most...
  19. Companies like this exist for one reason and one...

    Companies like this exist for one reason and one reason alone, and that is to soak up money from tech illiterate inverstors. They see a spiffy looking name and some fancy looking graphics and they...
  20. Using a PC floppy to image IBM System/36 5364 disks

    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,...
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    I think I have a copy of SSP + utilities for the...

    I think I have a copy of SSP + utilities for the S/36 PC somewhere in my collection of binders, but I am not sure if it complete. If it is, would disk images be of any use?
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    Alright, just got to disassembling the chassis,...

    Alright, just got to disassembling the chassis, but the only boards in there look like power supplies. I doubt this is the board you are looking for.

    49578
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    I got the pinout for the Big Board connector, but...

    I got the pinout for the Big Board connector, but I can't find anything on the keyboard itself or the controller chip on it. I am thinking they are compatible but I don't know for sure as I have no...
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    I don't think so. I got a bunch of small boards...

    I don't think so. I got a bunch of small boards from Univac mainframes, and an early power supply, but I don't think any of it is UTS 30/40.
  25. Replies
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    1,521

    I have three chassis’s, two of which have no...

    I have three chassis’s, two of which have no drives in it. One of them is definitely empty, but the other I think has the controller board. It is under the drive mounting bays and I can see part of...
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