(!!!!!) (Best Single) EL34 Mullard UK XF1 NOS 1959 double "O-O" getter halos (83ma) (1st version after metal base) (very rare)
(!!!!) (Best Value XF2 Pair) EL34 Mullard XF2 double halo "O-O" used/test like new 1965 (89ma and 90ma)
(!!!!) (Good Value XF2 Pair) EL34 Mullard UK XF2 double round "O-O" getter halo used/good 1965-1967 (72ma and 76.5ma)
(!!!!) (Recommended Pair 1965) EL34 Mullard XF2 double halo "O-O" used/tests like new 1965 (85ma and 85.5ma) 1-3% matched
(!!!!) (Single 1965) EL34 Philips Miniwatt by Mullard XF2 double round getter halo "O-O" NOS 1965 (76ma)
(!!!!) (SINGLE) EL34 Pope Mullard XF2 single halo "O" used/very good 1970 (82ma) (Gm like new)
(Good Value Pair) EL34 Mullard UK XF2 single halo used/good 1969-1972 (83.6ma and 85.6ma)
