Fixing the Commodore 64 PSU Overvoltage Problem on a Budget

In this episode of Mike’s Corner, Mike explores how to modify a Commodore 64 power supply to address the infamous 5V overvoltage issue that has damaged many C64s over the years. This guide focuses on an affordable solution, demonstrating how to use a basic Commodore PSU—often referred to as the “cheese grater” model—along with a Sony PSP charger to create a safer and more reliable power source.