2 comments on “Just got Amiga 500? Hardware checkup guide – Trapdoor Ram

  1. Also working on a Zydec ram card with battery damage, but this ones an Amram 16. I can find even less info for this one.
    Good Luck

    • According to Amiga Hardware Database only difference is size of RAM chips used

      Zydec A500 512K
      Company Amiga Interface
      Zydec, UK A500 trapdoor slot

      512 kB RAM
      AmRAM-16: sixteen 256k×1 DIPs
      AmRAM-X: four 256k×4 DIPs
      AmRAM-Z: four 256k×4 ZIPs

      So PCB layout shouldn’t differ too much from other vendors.

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