ZX Spectrum DIY Cook Book

 By 8080

 

 A downloadable book

ZX Spectrum DIY Cook Book Files

BinXfer, test sw for serial interface

Eaglecad files, sch & brd files for all interfaces

ResiDOS in MP3, Use MP3 player to load ResiDOS

ResiDOS Programming Information 

Software 2.0 & 3.0 some software to try out the interface with

ZXMatrix files, froncover box picture

ZXUSB files, USB module sw 

  

Buy ($5.00 USD), here

Source: https://8080.itch.io/zx-spectrum-diy-cook-book