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  1. 1944GPW

    Four-voice polyphonic music on my S-100 Z80 system circa 1981-1982

    A long time ago I was a Sydney schoolkid who had an australian Applied Technology S-100 system which my brother and I built from a series of kits. It comprised a DG680 CPU, ETI-640 VDU, ETI-681 PCG, and I honestly can't remember how much memory but it was a few 16k boards of static RAM, so most...
  2. 1944GPW

    LED shortfall from a giant electronics supply house, is that possible?

    Can someone very familiar with LEDs and orders from Mouser Electronics tell me if there's anything remotely special about this 5mm green LED?: https://au.mouser.com/ProductDetail/941-C566DGFFCY0Z0791 It seems like a jellybean component to me? I picked it off the top (or near top) of a list of...
  3. 1944GPW

    Australia Computing History books from the Estate of Allan Bromley

    This might probably be known to Australian vintage computer folks, but I'll mention there's a collection of historical computing books on eBay owned by the late Allan Bromley. Allan was a notable figure in Australian computing history and was well-known for his extensive work in researching the...
  4. 1944GPW

    Other US Areas IBM Honeycomb data storage cell and cartridges

    Not mine. I haven't seen one before for sale, would definitely complement an esoteric computer storage technology collection though. https://www.ebay.com/itm/255862691664
  5. 1944GPW

    Other US Areas Qbus to IBM Bus and Tag controller

    Saw this PDP-11/MicroVAX Qbus to IBM Bus and Tag controller, sadly no software. It may even be two units(?). Now I do have an IBM 3420 magnetic tape unit but no 3803 controller, so it's of even less use to me. But maybe someone might luck onto the drivers for it someday...
  6. 1944GPW

    Now I get

    three columns of text for everything on my mobile after the upgrade, just like this. And the amount of vertical and horizontal scrolling to see the page has increased dramatically. I don't have a brand new phone, and I find it somewhat ironic that a forum about vintage computers now seems to...
  7. 1944GPW

    Lot of 89 IBM Model M keyboard keycaps

    For sale: Lot of 89 IBM Model M keycaps in fine condition, ultrasonically cleaned. Photo tells the story. I don't have any Model M's anymore so these are surplus. I am not selling the keycaps separately at this stage, I would rather the lot went. These are caps only, no stems or other bits. The...
  8. 1944GPW

    FS: some used Motorola CPUs

    Four used Motorola CPUs: one MC68020 CPU three MC68010 CPUs All are UNTESTED but look physically fine and have always been kept stored in tinfoil. No guarantees. No returns. The lot for $40 USD not including postage from Brisbane Australia to your location. Send me a PM if interested, you can...
  9. 1944GPW

    FS: some used Intel CPUs

    Two used Intel CPUs plus a support chip: intel A82485-33 (486 cache controller) intel i486DX (A80486DX-33) Intel Pentium 4 3.20GHz and a 40mm square heatsink All are UNTESTED but look physically fine and have always been kept stored in tinfoil. No guarantees. No returns. The lot for $40...
  10. 1944GPW

    IBM 2741 I/O Selectric terminal platen knob on eBay

    Not mine. https://www.ebay.com.au/itm/164216408001 As far as I know, this style of knob was only ever fitted to the 2741 terminal, MT/ST and blue ones for the 1052 printer-keyboard and 1053 printer, and not used on any regular Selectric typewriters. A while ago I recall an I/O Selectric on eBay...
  11. 1944GPW

    FOXBORO Integrated Circuits Users Guide (TTL vendor cross-reference) 1973

    I've just uploaded the FOXBORO User's Guide from 1973 which has some details on how their part numbers correspond to other 74xx chip vendors to: https://archive.org/details/foxboro-integrated-circuits-users-guide PREFACE FOXBORO Integrated Circuits Users Guide Ths book (document 73002BZ)...
  12. 1944GPW

    IBM System/38 FLD and other docs eBay Germany

    Docs, presumably System/38. Not mine, just passing it on https://www.ebay.de/itm/IBM-grosrechner-dokumentationen/184034547203
  13. 1944GPW

    APL\360 typeball for the IBM 1052 and I/O Selectric

    This is just for a bit of fun, now you can 3D print your own APL\360 typeball ('golfball') for a Selectric, I/O Selectric, 1052 printer-keyboard or IBM 1130: You can find it at https://www.thingiverse.com/thing:4126040
  14. 1944GPW

    LSI-11 switch console board differences and does a repop exist?

    I was looking at this LSI-11 bundle on eBay https://www.ebay.com/itm/193172448035 and noticed the switches and lights console board is different to the one described on PDF pages 170-171 of the 11/03 schematics at http://www.bitsavers.org/pdf/dec/pdp11/1103/1103_Schematics.pdf It doesn't appear...
  15. 1944GPW

    What if you had something...

    ...that was reasonably scarce, and took some effort and expense to get. And someone on this forum at a non-profit museum overseas then asked you "You could send everything to me, and I would happily take care of everything. ;-)" and later: "Would you be willing to part with them, and ship...
  16. 1944GPW

    Honeywell Type 716 general purpose digital computer logic diagrams doc

    In a quick search I hadn't found any scanned copy of this manual, 'Honywell TYPE 716 GENERAL PURPOSE DIGITAL COMPUTER INSTRUCTIONS AND LOGIC DIAGRAMS' out there. It's dated January 1975 and the page size is 433mm wide x 282mm high, the whole doc is 15mm thick. Some example pages show the...
  17. 1944GPW

    PDP-9 stuff from my road trip a few years ago

    It was a nice morning so I thought I'd take photos of the PDP-9 stuff I recovered in 2016. Hardware: DEC A-D converter and some additional flipchip logic. The sockets in these are single-sided. (There were a number of other PDP-9 flip chips I grabbed which I have taken photos of previously)...
  18. 1944GPW

    FA: Stallion 16-port serial card and RS232 breakout box, should suit Xenix

    I have eBay listed a Stallion Technologies 16-port ISA card with its RS232 breakout box (should suit PC/AT I think): https://www.ebay.com.au/itm/Vintage-Stallion-Technologies-16-port-serial-terminal-card-suit-IBM-PC-Xenix-etc/123758804790 Not tested, no manual and no drivers or any software, so...
  19. 1944GPW

    ASR 33 teletype chad box

    I had a go at doing the ASR 33 chad bucket in CAD so you ought to be able to just print one off now. https://www.thingiverse.com/thing:3353088
  20. 1944GPW

    "One day Son all this will be yours."

    Had this cartoon flicked to me and thought how appropriate it seemed for hoarding er collecting the stuff some of us here do :)
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