I have recently acquired an EL34 based tube amp, of which I have no idea about the age of the tubes.
I will likely replace all of the tubes, and am looking for specific suggestions for the Russian El34s that are currently in use.
The amp also has a pair of 12AXT7s and a pair of 12AXU7s. I'm less uncertain about what to put in for them as I have another amp that uses these also. Suggestions are still welcome of course.
Thanks in advance.