Tech Scans 

After stumbling across a load of old copies of Practical Electronics and Everyday Electronics (now merged), I found some rather interesting articles on hardware projects for Sinclair machines. Most are for the ZX81, but some are for the Spectrum.

Rather than keep these goodies all to myself, I have decided to scan them all in and upload them for your delight and delectation. Please note that they are straight scans – I haven’t OCRed them at all – so they are fairly big (about 300-400k per page). And don’t complain to me if you fry your ZX81s :)

ZX81 2K Ram Pack – Everyday Electronics, April 1982

2K RAM Pack Page 1 2K RAM Pack Page 2 2K RAM Pack Page 3 2K RAM Pack Page 4

ZX81 Keyboard Sounder – Everyday Electronics, June 1982

ZX81 Keyboard Sounder Page 1 ZX81 Keyboard Sounder Page 2 ZX81 Keyboard Sounder Page 3 ZX81 Keyboard Sounder Page 4

ZX81 3K Ram Pack – Everyday Electronics, December 1982

3K RAM Pack Page 1 3K RAM Pack Page 2 3K RAM Pack Page 3

ZX81 Speed Computing System – Everyday Electronics, February 1983

Speed Computer System Page 1 Speed Computer System Page 2 Speed Computer System Page 3 Speed Computer System Page 4

ZX81 Expanded Keyboard – Everyday Electronics, March 1983

ZX81 Expanded Keyboard Page 1 ZX81 Expanded Keyboard Page 2 ZX81 Expanded Keyboard Page 3 ZX81 Expanded Keyboard Page 4ZX81 Expanded Keyboard Page 5 ZX81 Expanded Keyboard Page 6 ZX81 Expanded Keyboard Page 7

ZX Spectrum Amplifier – Everyday Electronics, April 1983

Spectrum Amplifier Page 1 Spectrum Amplifier Page 2 Spectrum Amplifier Page 3

ZX80 Review – Everyday Electronics, July 1980

ZX80 Review Page 1 ZX80 Review Page 2 ZX80 Review Page 3 ZX80 Review Page 4

One Response to Tech Scans

  1. roger says:

    please help trying to find a pc emulator that runs micro command speech unit
    better yet
    can you use retro X to convert pc avi video frame by frame to screen$
    was hoping to have a go for the sam coupe mode 4 16 colour but its 24kb and i know teh z80b cant shufty this amount around at 50hz even witha dma like the mb-02+ interface – my god a hi density drive thats faster than the amiga!
    all the best folks hope you like the vid
    if you code then please help us find how to pull/rip 3d vector graphics from software?

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