After years of wiggling and pulling in and out of the Spectrum, the connections to the power supply plug are often faulty now, causing shorts or sudden power loss when the cable is moved..
Cut the faulty plug off and replace it with this brand new replacement unit - soldering skills are required.
Voltage rating - 24V
Current rating - 5A
Please note - the end plugs must be wired to centre pin NEGATIVE with Sinclair power supplies.