Category: electronics 2020 ZX81 hardware hacking - Homebrew ZX8-CCB Sep 20 2020 ZX81 Video Conditioning Mods Sep 19 2020 ZX Spectrum 4116 RAM Replacement Board - Part 2 Sep 6 2020 ZX Spectrum 4116 RAM Replacement Board - Part 1 Aug 14 2020 Kempston Joystick Interface Stripdown Jul 23 2020 Arduino and 4116 DRAM Jul 12