New old stock EL84 / 6BQ5 Power Pentode. The Russian made Mesa Boogie EL84 is extremely reliable and sounds great. They are of exceptionally sturdy construction.
Tested on the RoeTest professional computer testing system.
Matched sets are matched by plate current and transconductance using the new Maxi Matcher 2. They are not matched by date code. Date codes shown in photos are not necessarily the date codes that will ship.