I've been considering an old school blue pilot light but hesitate because of the size of the thing. This blue LED you have may be perfect. Small and matches the rest of my gear.
If you don't mind, whats the source & part#?!!!
PS..I got the same adapter, not sure if I prefer 6sn7's over my euro 12au7's...should probably try some others...mine is a ratheon 1954 w/ T-Plates and a really cool naval anchor label. Nice detail but somewhat limited texturally...for lack of a better word.
I picked up that led at a local electronics shop here, the guy had a bag full of different colour 12 volt led`s, the base mounted first and then the led slipped in threw a plastic insert from the bottom, sorry no parts #, here is a pic of the base.
To be perfectly honest, i don`t give a rats behind what it looks like. I am only interested in what type of sound it puts out. Different tubes give you different flavour, a better tube? Well that is in the ear of the beholder, try different tubes and see what you enjoy the most.