Model Versions (Sinclair ZX Spectrum 16/48k) Updated Apr 18, 2026 · 7 min read · Support · 0 viewing 🔥 Most active page right now Log in or register to read the full article. Previous Schematics (Sinclair ZX Spectrum 16/48k) Below are several schematics for the various ZX Spectrum 16/48k models. 📎 Download 📎 ZX Spectrum 1... Next Power Circuit (Sinclair ZX Spectrum 16/48k) The ZX Spectrum 16/48k accepts 9V DC positive outer (inverted) power supply. The 9V goes to parts of...