Power Circuit (ZX Spectrum 128) Updated Mar 15, 2026 · 1 min read · 0 viewing Previous Model Versions (ZX Spectrum 128) A great resource for the Spectrum versions and images is https://spectrumforeveryone.com/technical/... Next 40077 Gate Array (ZX Spectrum 128) The starting point of the system is the AMSTRAD 40077 Gate Array chip. If this chip is bad , you...