New PS-100 worked for 4 hours and then a tube fried

Hello @Markooshio and welcome to the community :tada:

Yes, this sounds like the same issue. I’m really sorry this happened to you; there is nothing worse than getting new gear and having a fail straightaway. We can send you out a new set of tubes at no expense, if you want to follow these steps; How can I make a replacement part request?

Regards,

Dan