I tested every cap I removed, all of them nichicons from the mid 80s. They all measured to spec.
So it was kinda pointless at the end. Sure, it is going to be good for a few more decades, alongside the 1571 Ultimate II-L.
(yes, I replaced the original PSU. I bought separate modern, safe 9vac and 5vdc PSUs and an adapter to join them into the C64 power connector)
I'm surprised that people find this to be an example of clickbait. If I cared about views, I'd imagine an honest title like - "I turned my c64 into a digital fireplace" - would have probably been more appealing, no?
It’s an interesting article, but the title is a textbook example of clickbait and I’m surprised that you’re surprised.