(!!!!) (Recommended Pair) EL34 Mullard XF2 NOS (1 tube) single halo (1 tube) double halo (92.8ma and 96.7ma) (more pairs are listed)
(!!!) (Best Value XF2) EL34 Mullard branded GE XF2 double halo "O-O" 1966 guide pin broke off (102.5ma)
