Builds & Mods
DIY retro builds and modifications: flash carts and multicarts, diagnostic cartridges, controller adapters, video and region mods, kits and PCBs built from scratch.
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Building and installing an internal composite video board that replaces the RF board inside a ZX Spectrum’s modulator, with the three circuit options explained.
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Building a TL866 MiniPro adapter for 27C400 to 27C322 EPROMs, then rescuing a legless Amiga A600 Kickstart ROM by burning it to a new chip.
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Building an Epyx FastLoad cartridge for the Commodore 64, working around remarked AliExpress EPROMs, and timing SD2IEC loads with and without it.
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Building PCBGeeks’ Arduino-based dual DRAM tester and putting a batch of remarked AliExpress 4116 and 4164 chips through it.
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BennVenn’s drop-in LCD kit for the Atari Lynx II replaces twelve soldered wires with a single ribbon cable. Here’s the full install, the optional brightness wire, and how the current draw compares.