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The Opus Discovery mini-clone Disk Interface for ZX Spectrum

UNDER LICENSE GPL Version 3

the schematic and PCB for this interfaz, make in KICAD target is to have a PCB is less than 10x10cm so it's very cheap.

WARNING - THIS IS WORK IN PROGRESS - NOT TESTED

The Advantage of this interfaz over the original are:

  • 4 Banks of ROM, so you can swap between original ROM and Quickdos, selectable by dip-switches, in the roms directory you can found it individually and one file ready to burn into a 28C256 flashrom.

  • Included Fixed for +2A/+3, so can be used in any ZX Spectrum, selection by jumpers, compatibility with +2A/+3 is not yet tested.

  • Reset Button

  • Posibility of use crossed and plain floppy cable, and invert Drive 1 and Drive 2, very usefull if you have a Gotek and a real floppy. With plain floppy cable you can use up to 4 drives.

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