crack

Hi there, after installing the Speedball upgrades on my Crack step by step. I first installed the first upgrade board with successful checks and tested it for a few days. Sound was great. After that, I went for the second board. Resistance and voltage checks were within the given tolerances. It...

I've been having some peculiar vacuum tube adventures lately. I'd appreciate thoughts and insights on this. As I suspect at least some other people also have, I've amassed a collection of tubes over the decades. I'm making a committed effort to sort out a life of vacuum tubeage. This requires...