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  1. Kai Robinson

    What are your vintage grail items?

    I know Rob Taylor had begun work on reverse engineering a board, but if anyone has a dead one they want to strip and scan, send it my way to replicate it ;)
  2. Kai Robinson

    Community project? NuBus-to-SPI interface... aiming toward ESP32-based WiFi card

    One thing i thought of throwing out there was this: https://www.mouser.co.uk/ProductDetail/Microchip-Technology/LAN9218-MT?qs=%2Fha2pyFaduh7GoBaJaS3j52JXXhN34TMMTgkdc1u3tA%3D & https://www.mouser.co.uk/datasheet/2/268/MCHP_S_A0003010310_1-2520859.pdf Generic 32-bit interface (not for PCI), and...
  3. Kai Robinson

    My PowerMac 7100/80 AV Recap Project

    I just got a 7100/66 board in the post - each and every electrolytic cap has leaked and leaked into the ground plane surrounding them! :o
  4. Kai Robinson

    What are your vintage grail items?

    For me, it's an Acorn 3010 or 3020 — hard to find one for a decent price these days, that's not been destroyed by the power of Varta battery explosion.
  5. Kai Robinson

    Voodoo 3 / 3000 AGP… BX chipset?

    Funny you should ask, our school had RM Pentium 3 PC’s based on the AOpen (remember them?) 440BX boards and most had a 3dfx Voodoo 3 AGP in them (a few had Riva TNT2’s) and there never seemed to be any issues, on Windows 98SE.
  6. Kai Robinson

    Using TOS 1.04 from a Gotek

    Would you share the sussage with us? :p
  7. Kai Robinson

    Logic Board - Macintosh Classic RAM Expansion

    Sprint will generate the data with the export function, you just need to redo the formatting.
  8. Kai Robinson

    Member Bio

    @Genjoke could you please put this in your own thread instead of as a reply to someone else's? :)
  9. Kai Robinson

    Logic Board - Macintosh Classic RAM Expansion

    Not hard at all, took about 10mins to figure out how to do it! Have a look at the github for it, the .xls files are the ones you want to look at.
  10. Kai Robinson

    Logic Board - Macintosh Classic RAM Expansion

    I will definitely vouch for the smt assembly service at jlc, they've done a great job, very neat.
  11. Kai Robinson

    Logic Board - Macintosh Classic RAM Expansion

    So these just arrived in the post...
  12. Kai Robinson

    This section is for everyone! (not just staff)

    For those replying in this thread - please post a new thread in this section, to save this post from being filled up :)
  13. Kai Robinson

    Random member bio - stickytack

    Always wanted a crown vic - but they were never available here in the UK...nor would owning one be at all sensible! :D
  14. Kai Robinson

    Recommended Oscilloscope for retro computers?

    I've had decent enough luck with my OWON SDS1104 - the lower end version is quite cheap for basic stuff: https://www.owontechnology.eu/product/1365126/owon-sds1022-20mhz-2-channel-digital-oscilloscope
  15. Kai Robinson

    Any thoughts on my SE/30

    Argh, yes, sorry the silkscreen in that area is rather cramped.
  16. Kai Robinson

    I can hear the ZZZzzzZZZZ from here :D

    I can hear the ZZZzzzZZZZ from here :D
  17. Kai Robinson

    Any thoughts on my SE/30

    This datsheet might help - start by probing the address lines and see if there's any wierdness :)
  18. Kai Robinson

    Flyback glue/sealer

    @JDW would be able to chime in on this - i seem to recall him posting over on EEVBlog about this exact issue.
  19. Kai Robinson

    512ke RAM upgrade woes

    https://wiki.preterhuman.net/Mac%27s-a-Million#/media/File:8CEBC8C8-E6D4-4C86.jpeg might be a good starting point, visually - looks like if it's populated the jumper at JB1 needs to be OPEN rather than closed?
  20. Kai Robinson

    Any thoughts on my SE/30

    Hi @cannfoddr ! This looks suspiciously like a video RAM failure - 1/2 the screen frame isn't being drawn - i'd recommend desoldering the chips at UB10 and UB11 - those are the 41264 DRAM's for the video system. I'd also check UF8 - the 74LS166.