6DJ8 vs. 6922?

I’ve tried more tubes in this variant than I would care to mention. Oddly, favorites were the Amperex 6DJ8 with a white globe. I’ve never seen these anywhere else, and they sounded better than other Amperex 7308 (military spec) with white lettering that are $$$, despite the 6DJ8 spec supposedly being the lowest of 6DJ8/6922/7308. If you can find any Amperex 6DJ8 with a white globe on em, try it out. 

The Amperex JAN 7308 is white good as well, as is the Reflektor 6N23-P. The latter are still available on Viva Tubes, where I’ve purchased some in the past:

https://www.vivatubes.com/true-nos-nib-matched-pair-6n23p-ev-soviet-russia-6922-6dj8-mil-spec-vacuum-tubes/?gad=1&gclid=CjwKCAjwvJyjBhApEiwAWz2nLW99-7nP7mCqeHI5qaNO9Vg8Bh1LO1_4SJh4OZ29vft9PlZBAPwElRoCTFoQAvD_BwE

I went to NOS Amperex 6922’s and they are wonderful.  I tried several different ones and the Amperex were the best to my ears. 
 

All the best.

agree w @rodman99999

no misinformation posted here that i see on the op’s basic query

i have probably ~1000 pcs of 6dj8 variants i have collected over the years, from european cca’s, ecc288/188, 7dj8/pcc88, bugle boys, a-frames, tele’s, adzams, mazdas, cifte’s, russian rocket 6h23p’s and so on... reason being i have been a c-j preamp user since the 90’s, and for many years, my beloved premier 16ls2 used 6 at a time

folks who have answered here to the op like myself and rodman999 have a substantial experience base with this tube (and tubes in general)

that said, i don’t know why one commenter went on about 12au7 5814 etc etc... got nothing to do with a 6dj8 except the physical tube form

Mid 70's Voskhod 6N23-P has been best to my ears.

As I mentioned earlier some gear is hard on tubes so NOS 6dj8 probably aren’t a good choice.  You want to use a 6922 , a ruggedized 6dj8
 

The Voskhod 6n23 tubes of the 70s are super rugged and last.  Those are what I used in my CJ Classic 2se