Tube rolling question

Got it.  Thanks for your help.

keep the differences in tubes symmetrical by channel

(i.e. always same combo in each channel)

Yes you can as long they are L/R, L/R. 6922 & 7308 are interchangeable.

G

@ taxmandme
Yes you can. Here are the type of tubes that are interchangeable with the 6922!
http://www.vacuumtubes.com/6dj8.html

Wild guess in the L/R positions, yes.
Not a lot of info to go on there..

NO with both left (6922) and both right (7308). 
They would work, but there will most likely be a sonic, and a gain difference..

I'm guessing the 6922 and 7308 are options or equals, there is a difference.. I didn't look up the specs on the valves..

Regards