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  1. wrljet

    Did IBM ever use Mitsubishi M4851 floppy drives?

    I have an IBM XT 5160 that came with two of these Mitsubishi M4851 floppy drives. They have a 1985 date on the serial number stickers. They have an unusual "door" that I had not seen before. Most ICs on my motherboard have 1984 date codes. All pre-1985. Wondering if these drives could be...
  2. wrljet

    PC XT 5160 Motherboard with patch wires

    I have this 5160 motherboard that just blew a tantalum capacitor, and noticed a few things about it while working on it. 64-256KB Board p/n 6320155 Chips are mostly dated early/mid 1984 The tantalum capacitors are common 2-lead, not the more usual 3-lead I've seen before on IBM PC...
  3. wrljet

    Is this part from an IBM PC or XT?

    Is this a card bracket, or something similar, maybe from a 5150 or 5160 PC?
  4. wrljet

    Heathkit H-89 Accessory Card Cage

    What is the stub for that sticks up off the top of the accessory board card cage in the H-89?
  5. wrljet

    Info on this SIO-3 Combo Controller board?

    Any info available on this SIO-3 Combo Controller board? Uses a UMC UM8388 floppy controller chip and HM83C452L chipset. Marked SIO-3 on the front and IDE IO 345 on a paper sticker on the solder side.
  6. wrljet

    Intel Overdrive Processor DX2ODPR66 - Does it need a fan?

    Does an Intel Overdrive Processor DX2ODPR66 need a fan? It gets quite warm (too hot for me to hold a finger on). Bill
  7. wrljet

    DS8837 Bus Receiver

    The topic of these DS8837 bus rReceiver chips comes up from time to time. I bought 50 of them, "used, socket pulls" for $6 plus postage from Electronic Surplus in Mentor, Ohio. Bill
  8. wrljet

    Mid Atlantic Digelec EPROM Programmer model 825 : Free

    Offering for free, local pickup only near Wash DC, a Digelec EPROM programmer, model 825. Dates from early/mid '90s I'd guess. As found, completely untested. Bill
  9. wrljet

    Kaypro Z-80 CP/M Computer with Hard Disk

    For sale: I have a Kaypro (don't know the exact model number) with the hard disk. Works and boots CP/M. The outside is similar to this (this is a "stock" photo): The plastic insulation of the coiled cord to the keyboard has gotten sticky over the decades. I have various floppy images...
  10. wrljet

    Bunch of DRAM chips -- free -- local pickup in Wash DC area

    I've got a stash of DRAM chips I need to get rid of. They are free, local pickup only, in Bethesda, MD U.S.A. And a have some 8087 chips too I can throw in. Send me a private message if you want 'em. Numbers include: IBM 2164-20 TMS4164-20NL HM50256P-15 KM41256AP-12 and lots of others. Bill
  11. wrljet

    FS: Compaq Deskpro 386

    I have a nice original Compaq Deskpro 386 I'd like to unload. This is the early original 386 PC, 16 MHz, no cache. Power supply has been carefully repaired and washed, fan replaced. It includes a fully populated optional memory daughter board. 4MB RAM. Also another spare board, with the...
  12. wrljet

    IBM PC 5150 Original Box -- Free

    I have an original box for an IBM PC 5150 CPU. Just the box, the internal packing materials are long gone. It's been in the hot humid attic here for 29 years. There is some "foxing" or whatever it's called around the lower most inch of the box. "Easter" is written on one of the inside top flaps...
  13. wrljet

    Windows For Workgroups 3.11, Windows 95, MS-DOS, Office 97 OEM packages

    These are in the original packaging. Shrinkwrap is broken on some from shop wear. WfW diskette packets are still sealed. MD-DOS (assume version 5 or 6, dunno, it's not written on the package) Windows For Workgroups 3.11 Windows 95 Office 97 Small Business Edition Pictures...
  14. wrljet

    Dell Dimension R400 Pentium II Tower PC

    Free for local pickup only in Bethesda, Maryland USA. Dell Dimension R400 Pentium II Tower PC http://www.wrljet.com/PCs/DSC02003.JPG http://www.wrljet.com/PCs/DSC02004.JPG Pentium II, 400 MHz 256MB RAM CD-ROM drive and 3.5" floppy Ethernet card Hard disk about 40GB, boots DOS 7 (from Windows...
  15. wrljet

    Magitronic 386 PC Clone

    Free for local pickup only in Bethesda, Maryland USA. Magitronic 386 PC clone http://www.wrljet.com/PCs/DSC02000.JPG http://www.wrljet.com/PCs/DSC02001.JPG http://www.wrljet.com/PCs/DSC02002.JPG AMD Am386 XL 40 MHz CPU 8MB RAM Combo I/O disk controller Trident VGA (not much memory on it)...
  16. wrljet

    Two IBM PC XT's 5160

    I have IBM 5160 XT's that have to go due to major downsizing. Pictures: http://www.wrljet.com/PCs/ The chassis and internal components of both are very clean. Some I have washed, some were new when installed. One cabinet is pretty good. One has some small rust spots. Both have 8087 math...
  17. wrljet

    IBM 5150 / 5160 and Clone Motherboards

    I have about eight or so assorted IBM PC (5-slot), XT (8-slot) motherboards, and Taiwanese turbo XT clones. The IBM ones are assorted part nr. and PCB colors. Some of these were tested and do work. A couple tantalum caps blew up, which I removed, and then they worked. After filling the...
  18. wrljet

    IBM PC AT 8MHz with 287, 640K base, 1920K Extended RAM, VGA

    I need to unload an IBM PC AT. Nice clean restored system. Make offer. Pictures: http://www.wrljet.com/PCAT/ Due to size and weight (almost 50#), cost of shipping, and most of all my laziness, this is LOCAL PICKUP ONLY in Bethesda, Maryland USA. (right off the DC Beltway) All parts have...
  19. wrljet

    Kaypro II - Working - Maryland USA

    I have a working Kaypro II with a boot disk to unload. $25. Bethesda, Maryland USA. LOCAL PICKUP ONLY Pictures: http://www.wrljet.com/freecycle/k21.jpg http://www.wrljet.com/freecycle/k22.jpg http://www.wrljet.com/freecycle/k23.jpg Not tested beyond what's shown in the first...
  20. wrljet

    IBM PC Data Acquisition Board

    I have an IBM brand PC Data Acquisition ISA board and remote pod for sale. Includes the manual and software. I believe it to be unused. Pics: http://www.wrljet.com/ebay/dataacq (sorry, the image files are 5MB each, I forgot to resize them) Looking for local pickup in Bethesda, Maryland...
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