but the new Écoute vacuum tube headphones have decided to cut out the middleman and put a whole hi-fi on your head. The headphones include a Korg Nutube P61 right in the earcups for an authentic ...

if you will. So already, I was taken by the build and the way that the headphones feel in hand — but I wanted to see what that vacuum tube could do. I slipped them on my head, and got started.

For most of us, vacuum tubes haven’t appeared in any of our schematics or BOMs in — well, ever. Once mass-manufacturing made reliable transistors cheap enough for hobbyists, vacuum tubes ...