Amazon.com: ZX Spectrum PSU Modern Black EU - Replacement ZX Spectrum Power Supply, EU Plug : Electronics
Cables
Boxed Sinclair ZX Spectrum 48K Tested Working Jetpac Alien 8 Manual Cables - American Wood Reface
Amazon.com: ZX Spectrum PSU Modern Gray AU - Replacement ZX Spectrum Power Supply, AU Plug : Electronics
Supratim Sanyal's Computing Blog | Wandering Digital Wastelands as a Geek: Powering up a British ZX Spectrum after 30 years in America - The PAL UHF Analog TV and 220V AC Challenge
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How to Buy and Use a ZX Spectrum in America: A Primer from Across the Pond | Retronauts