Click: https://discord.gg/ZYGDUcP
Using a ZX Spectrum 48K ROM on a Harlequin 128
If you want to build and use a Harlequin 128 kit, but can’t find a ZX Spectrum 128K ROM (such as the Toast Rack one), you can just use a ZX Spectrum 48K ROM instead.
This will run any game without any problem, as shown in this video: https://www.youtube.com/watch?v=3g-s2ZOStOs.
48K ROMs are way more easy to obtain (though we sometimes offer a couple of original Toast Rack ROMs in the webshop).
Underneath some photos of the small modification needed for using a 48K ROM in a Harlequin 128 board.
So you will need to solder a wire from pin 14 to pin 27, and bend pin 27 outside so it won’t go into the ROM socket on the Harlequin board:
Microdrive repair and maintanance guide
Also an older topic from me on WoS, but very useful.
Fix for DivIDE interface not working properly on ZX Spectrum 48K with NEC ROM
It’s an old document, but I don’t think I’ve posted it on this blog before.
http://www.worldofspectrum.org/forums/discussion/comment/735230/#Comment_735230
ZX80/ZX81 composite video mods
ByteDelight planning updated!
SCART Blanking signal update
Real MIDI output on ZX Spectrum 128K models
I didn’t yet post this on ByteDelight (it was on my old website), so I think it’s a good time to do it now:
https://www.benophetinternet.nl/hobby/vanmezelf/ZX_Spectrum_Midi_Out.pdf
New webpage about interface compatibility
Started a new page showing compatibility of several interfaces.