Tube rolling with adapters? 6922->5670->6sn7?


My AMR DP777SE has a tubed output stage with 5670's on pinout adapters. The pre-SE version used 6922s in those positions. I'm curious to try rolling some tubes.
Can the pinout adapter be removed and 6dj8/6922/7308's be used?
Can a pinout adapter for 6SN7's be substituted? I REALLY like the octal sound....
OK, the AMR is a DAC, but I imagine there'd be more tube knowledge in this forum than in digital.
Go figure.
Thanks for your help!

budburma
Not sure I’d bother going back to 6922 as AMR seemed to have gone to some trouble replacing them. Unless you’ve a CCa.