Hello everyone, I'm Danny from Montréal. Since I was twelve years old, I've been an electronic hobbyist, but my occupation is in computer security (https://danny.mantor.org/about/). I started building an amplifier two years ago when I was going through a difficult time by listening to John Audio Tech and reading books. I made a few solid-state amps and tube pre-amp and almost completed two 300B monoblock based on online schematics - and a few modifications. I'm proud to have built my own PCBs. It's a lot easier than first thought. I'm far from being an expert, but I love craftsmanship. Lately, I found Skunkie Designs and really appreciated the level of details in her explanation. Specifically, how to fix an under voltage 300b. Here's a few pictures.