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. And don’t complain to me if you fry your ZX81s 🙂
ZX81 2K Ram Pack – Everyday Electronics, April 1982
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/2k_ram_pack_1.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/2k_ram_pack_2.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/2k_ram_pack_3.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/2k_ram_pack_4.png)
ZX81 Keyboard Sounder – Everyday Electronics, June 1982
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/keyboard_sounder_1.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/keyboard_sounder_2.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/keyboard_sounder_3.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/keyboard_sounder_4.png)
ZX81 3K Ram Pack – Everyday Electronics, December 1982
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/3k_ram_pack_1.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/3k_ram_pack_2.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/3k_ram_pack_3.png)
ZX81 Speed Computing System – Everyday Electronics, February 1983
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/speed_comp_sys_1-226x300.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/speed_comp_sys_2-226x300.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/speed_comp_sys_3-229x300.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/speed_comp_sys_4-300x256.png)
ZX81 Expanded Keyboard – Everyday Electronics, March 1983
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/expanded_keyboard_1.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/expanded_keyboard_2.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/expanded_keyboard_3.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/expanded_keyboard_4.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/expanded_keyboard_5.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/expanded_keyboard_6.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/expanded_keyboard_7.png)
ZX Spectrum Amplifier – Everyday Electronics, April 1983
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/amplifier_1-214x300.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/amplifier_2-227x300.png)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/amplifier_3-247x300.png)
ZX80 Review – Everyday Electronics, July 1980
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/zx80_review_4-294x300.jpg)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/zx80_review_1-228x300.jpg)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/zx80_review_2-232x300.jpg)
![](https://lofi-gaming.org.uk/wp-content/uploads/2022/12/zx80_review_3-224x300.jpg)
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?