Jump to content


  • Content Count

  • Joined

  • Last visited

About ktkm

  • Birthday 04/10/1981

Profile Information

  • Gender
  • Location
  • Interests
    Typography, Dozenalism, Mac Plus, Mac Portable, Mac IIcx, Mac IIci, Mac SE/30

Recent Profile Visitors

439 profile views
  1. I love that monitor, and I just recently did a re-cap to one of min (a lot of capacitors the boards combined!). And it really helped to improve the convergence, and the clicking sound it made. The most corroded caps were on the video color board (B-board). There are still some convergence issues in the corners, but after reading up on Sony PVM tubes, I have decided to get a hold on some convergence strips. Great test-pattern by the way! Here are some of the ones I made, if I where to start fiddling with yoke rings.
  2. ktkm

    Daystar Universal PowerCache P33 in SE/30

    WOW! Super! Great News!
  3. ktkm

    ROMBUS - 64 MB flash interface for Mac Plus

    Count me in as well.
  4. Great! Thank you so much @cruff for helping me out! I have learned a lot.
  5. I measured the pot in place, with the monitor turned off, to 1.078 kΩ, and with the monitor on, to 11.32 V DC. Later I found this one, could it be what I’m looking for in this case? When it comes to down to effect, the spec says 100mW, how do I measure that?
  6. Thank you! It is a ‘trim potentiometer.’ But how can I determine the resistance value? The ‘trimpot’ says: ‘102’ – is that a value? The size is approximate 7 mm.
  7. I recently had one of my Apple Color High-Resolution Monitor Video Color Board ‘B-board’ re-capped. One of the large capacitors (22 µf 250 V ) had started to erode. The video was slightly improved, and the occasional shutting down issue seems to be gone. However, the H-board has a broken dial, and it is hopelessly awkward to adjust the horizontal centering ‘H.CENT’. So where can I buy this little dial (marked with magenta in the picture) and what is it called? Thanks! /ktkm
  8. ktkm

    Fitting a SCSI2SD in a 68k Mac

    This guide looks a bit outdated? The latest version of scsi-util will give you more options, like for instance “software termination” an “quirks mode”. Good luck!
  9. The on-board memory is what I would like to rule out as well, now that the PSU has been restored to working condition again. But just like you mention, my soldering skill also lacks at this point.
  10. ktkm

    Daystar Universal PowerCache P33 in SE/30

    Now, that is almost precisely the thing I was looking for to build! Thanks for the tip @K Trueno.
  11. ktkm

    Daystar Universal PowerCache P33 in SE/30

    Great! What’s the spec on your Daystar Turbo 040? I was going to try it with 040 33 MHz. Memory benchmarks doubled in my SE/30—before the jumper it even scored slightly below that of a ’normal’ SE/30.
  12. ktkm

    Daystar Universal PowerCache P33 in SE/30

    Thanks for the tip and good to know! Something like this?
  13. Pew, thanks I’ll stick to the original adapter then! The Portable battery has been rebuilt, and the board recapped, I just taught I could put an old 165 adapter to good use. /K