Boyuurange / Reisong A50 300B Tube Amp Advanced Mods Part One

In this multi part video, we start the advanced modification of this amp. This is where we start rewiring the front end 6SN7 driver to a cascode design to drive the 300B correctly. Sadly, at the end of this video, I realized I was missing some resistors I thought I had, so it will be the first of next week before I can resume this mod after a parts order come in. After what I learned from mods to my personal DIY 300B build, this A50 should turn out sweet! I'm going to use a LED/resistor combo for bias on the cascode + add gridstopper resistors etc. Please subscribe to stay tuned!