I really like the 6BS8. It's a standard 9 pin. They are dead quiet, and under $10 on ebay. I have a couple and can't notice much difference between brands.

None of these are true 12v that require the Solstice (as far as i know). Ive used them all successfully in my Ember. I dont have a faraday cage (yet). I have eliminated a lot of noise by running a ground wire. Frans recommends grounding to the line out rca (I think), But i just screw a wire...

Here are some tube types that work with the Ember (version II or later for some of these) that arent on Jeremys list. They are 9 pin and dont need an adapter. 6BS8 - I've tried one and like it 12BZ7 - can be microphonic but can have real nice treble. Try to find the ones with longer black...

Ive tried a couple. I "think" one was a GE and the other a Holland made Amperex. The Holland Amperex sounded better. Ive discovered other tubes i like more, so ive moved on. They were cheap which is why i tried it. Ive had to move my office 3 times, and each time i move, the tubes i thought...

Ive used 7A4 and like them. I got an adapter from ebay seller: xulingmrs Its the only adapter from her that isnt perfect. Which is why i dont use them much. She also sells an ecc88 - 6922 adapter that runs 6AG5wa pentodes in triode mode. They have a lot of mid bass and are kind of unique...

question about matched pairs. I'm deaf on my left side, and I had Jeremy set up my ember 2 to play dual mono. I'm currently switching between a us navy 6c8 & a pair of phillips 6j5wgt. Is using Matched pairs for dual tube setups a matter of balance, electrical necessity , or both. I thought if...