It is a european P8A side-contact socket. Unlike american sockets, the tube clicks into place snugly. you can see them at the bottom: https://i.imgur.com/E6QqT9O.jpg
Appreciate it! They look really robust and I'm sure it's incredible satisfying to click them into place.
Glad to hear you're back on the tubes and not shilling Mac headphone jack supremacy these days. Welcome back to sanity!
Read these "rules" AND introduce
yourself before your first post
Being true to what the artists intended
(opinion / entertainment piece)
Comments on Profile Post by k4rstar