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  1. Joopmac

    Early Macintosh home brew 4MB memory upgrade board development

    I have the 524, for 512k extra (1MB total)
  2. Joopmac

    Macintosh 128k Revival!

    I always try to set it to the measurements mentioned here =)
  3. Joopmac

    Early Macintosh home brew 4MB memory upgrade board development

    I have this also, exactly with dove and rominator Only system 5.1 would boot 6.0.8 would stall at the Welcome screen I also mixed with 6.1.7 Finder and it works with 5.1 system.. strange
  4. Joopmac

    Macintosh Classic M1420 - floppy not writing or formatting diskettes

    Mostly the drives need a recap? My friend has capped like 20x 1.44MB and 8x800K, and oh also all my 400k drives After recapping, format always works again (on my drives)
  5. Joopmac

    Macintosh 128k Revival!

    Looks terriffic If i may note only one thing; the screen size should be a bit smaller, but often that inductor is stuck :/
  6. Joopmac

    Macintosh IIfx logicboard recreation

    Wow i am so very impressed Next stop: M5126 boards :o ?
  7. Joopmac

    Early Macintosh home brew 4MB memory upgrade board development

    Awesome!!! I wanted to populate my Macsnap, but this is nicer Would the ROMINATOR also fit within??
  8. Joopmac

    Overclock LC475/P475/Q605 without soldering or spicy-o-clock

    Awesome, will try and post results
  9. Joopmac

    Overclock LC475/P475/Q605 without soldering or spicy-o-clock

    Awesome, and still pretty unbelievable that this took 30 years to be found, a great hack Just imagine this would be an available extension in 1993, end users must have loved it
  10. Joopmac

    Overclock LC475/P475/Q605 without soldering or spicy-o-clock

    OMG i love this!! Is there a compiled INIT already? I would love to bench this against my q650-700@40mhz
  11. Joopmac

    Question about differences in M0110 (B) keyboards

    that's very cool, never saw it =) thanks!!
  12. Joopmac

    Question about differences in M0110 (B) keyboards

    whoops this image was missing So the one with the extra slots would be best matched with an early 128k
  13. Joopmac

    Question about differences in M0110 (B) keyboards

    hello all i have several M0110B, but only one is like this; extra slots at the underside and the icons are different can anybody shed a light on this? Which one is newer, or different factory or...
  14. Joopmac

    Hanging Out with a pack of Wombats

    Yes funny the differences between wombat boards, I have a q800 with 55mhz 88916 and 8mb ram and rom slot, a q650 with 4mb ram / 70mhz 88916 without Rom slot, a q650 without Rom slot with 8mb and 70mhz They seem to come in a lot of flavours
  15. Joopmac

    Wombat (650, 800) board overclocking limitations

    Does anybody know if the mod at page 10 with the r151 installed is for 33/40 or 20/25mhz rom timing? I’m confused because all my boards have r151 already installed (q650-800) and they run at 33 not 25mhz:)
  16. Joopmac

    Wombat (650, 800) board overclocking limitations

    Hello guys Awesome thread I have some 650/800 boards spare, at 33Mhz stock I would like to mod these to 40Mhz Unfortunaly i am a bit confused, can I please ask for a little help?:) Is all i need to do for 40Mhz: - replace oscillator with 20Mhz one - add 300R resistor to R151 if not there -...
  17. Joopmac

    MonsterROMinator... a ROMinator for Levco Monster Macs

    Well hello all So this has come to some conclusion My friend socketed the IC's the snap clicks on to for extra height The ROMinmator is directly on the board with pins, no ROM socket Now it fits with Kero's rominator But, i cannot start from a 6.0.8 system anymore;) Not from ROMinator, also...
  18. Joopmac

    MonsterROMinator... a ROMinator for Levco Monster Macs

    PCB's are on their way. I am very curious if this works. I attached the gerber i modified (drill hole file was incorrect)
  19. Joopmac

    Macintosh Portable & Powerbook 100 power adapter bench

    Awesome!! Lets try it Is it common to have to adjust the voltage after recapping?
  20. Joopmac

    Macintosh Portable & Powerbook 100 power adapter bench

    Hello all Can anyone hint how to build this test rig setup for testing voltage under load?
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