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  1. Kai Robinson

    How to: Build an External Power Supply for Atari 520ST (Using Parts from Amazon US)

    Gotta say, i really love the RT-65B - i made a bench supply for testing SE & SE30 logic boards, using one of those. Still keep meaning to get another one to shove into the original Amiga power brick.
  2. Kai Robinson

    1987 Macintosh Plus (Platinum)

    @techknight dug this up in the discord:
  3. Kai Robinson

    1987 Macintosh Plus (Platinum)

    BTW just to clarify - this is the one i purchased: https://www.donberg.co.uk/descript/h/hr_42086.htm
  4. Kai Robinson

    1987 Macintosh Plus (Platinum)

    Did a bit more measuring: between pins: 1 + 4 = 1.5 ohm 1 + 5 = 1.5 ohm 2 + 3 = short 2 + 7 = short 2 + 8 = short 3 + 7 = short 3 + 8 = short 4 + 5 = short
  5. Kai Robinson

    1987 Macintosh Plus (Platinum)

    Out of circuit....nothing at all!
  6. Kai Robinson

    1987 Macintosh Plus (Platinum)

    1 to 3 = 1.5Meg 2 to 4 = 1.5Meg 5 to 7 = 1.5Meg 5 to 8 = 1.5Meg All measured in circuit :/
  7. Kai Robinson

    1987 Macintosh Plus (Platinum)

    That $99 one is the one i bought, as it's the replacement that is put in, in place of the earlier type 26C model.
  8. Kai Robinson

    Breaking the 36MB RAM limit on the LCIII

    Custom bracket for the hard disk bay, mount a bluescsi and a new RAM slot in there, os that too far for signal traces?
  9. Kai Robinson

    1987 Macintosh Plus (Platinum)

    The previous flyback was totally destroyed, as was C3 next to it, which is why i bought the new flyback direct from Dalbani (who are the ones that sell them on eBay). I checked CR1 and CR5 and they seem to measure fine, according to @techknight - but i'm sourcing some replacements anyway. I...
  10. Kai Robinson

    Battery Damaged PC/AT Board - Component ID and general help

    Depends on the board you have. There are three crystals in the machine you have, depends on the motherboard type you have as well. Y2 is responsible for CPU speed. If you have a 6MHz 286, Y2 is 12Mhz. If you have an 8MHz 286, you have a 16MHz one. Y3 is always a 32.768KHz crystal (used for the...
  11. Kai Robinson

    1987 Macintosh Plus (Platinum)

    It's missing - as i'm in the UK and therefore use the 240v ;)
  12. Kai Robinson

    1987 Macintosh Plus (Platinum)

    Been a while since i updated this. So i ordered a recap kit based on the mouser basket in @JDW 's video, here (very useful video btw!): Unfortunately, I hadn't watched closely enough as this...is for the 120v Analog board. The one in mine is the International one. Still, most of the caps...
  13. Kai Robinson

    Restoration: Macintosh SE with Water Damage

    ...ouch! That is well and truly destroyed! I hope the Sony sound chip is salvageable from there. You'll need to source one of the serial chips as new old stock if the legs have been eaten away, but at least everything else looks to have been spared!
  14. Kai Robinson

    [ATTACH] As if by magic, a flyback appears!

    As if by magic, a flyback appears!
  15. Kai Robinson

    I'm 40 in a week. I'm too tired to deal with people that try my patience, play the victim and...

    I'm 40 in a week. I'm too tired to deal with people that try my patience, play the victim and act surprised when I call them out on their nonsense -_-
  16. Kai Robinson

    What are your vintage grail items?

    I concur - you can't tease us like that!
  17. Kai Robinson

    Building a NEC PC-H98 Video Cable: 26w3 Weirdness!

    Wow - i have to say i've never seen one of these in the wild - so many unique Japanese market only systems out there. That connector looks practically hellish though - why would they use that?! 😂
  18. Kai Robinson

    The 17" WUXGA PowerBook G4

    Stickied this - this is great! :)
  19. Kai Robinson

    Identifying and confirming fake 68040 CPUs (especially the L88M mask)

    Eric Woo is the rose amongst the thorns - all legit pulls, never remarked!
  20. Kai Robinson

    68000 CPU interface replacement for Killy Klip - Photos of alternatives wanted

    @Stephen iirc was working on one of these?