(!!!!) (BEST XF4 Pair) EL34 Philips Mullard NOS XF4 1979 (91ma and 94ma)
(!!!!) (Recommended Pair) EL34 Mullard branded Philips and GE NOS XF4 1977-1979 (99ma and 101.5ma)
(!!) EL34 Mullard Philips UK used/strong 1975 (106.5ma)
(!) (BEST VALUE) EL34 Philips Holland brown base used/good 1960 era (95.5ma)
