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  1. Kai Robinson

    Member Bio

    @Genjoke could you please put this in your own thread instead of as a reply to someone else's? :)
  2. 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.
  3. 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.
  4. Kai Robinson

    Logic Board - Macintosh Classic RAM Expansion

    So these just arrived in the post...
  5. 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 :)
  6. 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
  7. 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
  8. Kai Robinson

    Any thoughts on my SE/30

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

    I can hear the ZZZzzzZZZZ from here :D

    I can hear the ZZZzzzZZZZ from here :D
  10. 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 :)
  11. 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.
  12. 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?
  13. 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.
  14. Kai Robinson

    Too many categories

    Hi jcs! Thank you for your feedback :) The layout for this so far isn't 100% fixed and can be tweaked. The rationale for the category setup as it stands, is that we wanted to break things down in a 'by system' so if you wanted to network your mac plus, it'd go in the compact mac category...
  15. Kai Robinson

    Macintosh SE and Classic Reloaded projects updated in 'Hardware'! :)

    Macintosh SE and Classic Reloaded projects updated in 'Hardware'! :)
  16. Kai Robinson

    Every machine is a smoke machine, if you operate it wrong enough...

    Every machine is a smoke machine, if you operate it wrong enough...
  17. Kai Robinson

    Downvoting posts

    It looks like Xenforo theoretically supports this - but downvote buttons can be abused. I think once we're better established, mods should look at the cases individually and suggest to the OP of the thread/post that they might want to change what they posted - users have the ability to edit all...
  18. Kai Robinson

    Material Lost to Time

    Personally, i think if it can be recovered, it should definitely be reposted to make it easier to find/search - part of our MO here is to make things available for everyone, and not just 'shut down' and lose all content.
  19. Kai Robinson

    BETA TEST PARTICIPANTS - PLEASE READ!

    We're now live! As a result, this thread will now be locked - but remain viewable :)
  20. Kai Robinson

    5v FPM DIMM's!

    https://www.utsource.net/itm/p/11213515.html 84cents each, but you'd need a buffer and a voltage regulator to step down from 5v to 3.3v Perhaps the 74LVT162244 as the buffer? Each chip is 8MB (64Mbit) in size, 8 chips needed for the full 64-bit data bus, which would also give you 64MB...