(!!!!) (Recommended Pair) EL34 Mullard XF2 NOS (1 tube) single halo (1 tube) double halo (92.8ma and 96.7ma) (more pairs are listed)
(!!!!) EL34 Mullard XF2 single halo "O" used/good 1969 (75.2ma)
(!!!) (Best Value XF2) EL34 Mullard branded GE XF2 double halo "O-O" 1966 guide pin broke off (102.5ma)
(!!!) (Recommended Single) 6CA7 GE Big Bottle NOS rebranded GOLD-6CA7 National 1970's (91ma) (Highest Ma) (NOT A PAIR)
(!!!) 6CA7 Sylvania Big Bottle used/good 1970's (72ma)
