$ 149.99
(!!!!) (Best Pair #1) EL34 Mullard branded Philips NOS XF4 1976-1979 (88.5ma and 89.2ma) (Same Gm)
$ 499.99
$ 478.88
(!!!!) (Best Pair 1968) JAN-6189 Sylvania NOS 1968 (9.2/9.8ma and 9.8/9.5ma) 1-3% matched (same Gm)
$ 69.99
(!!!!) (Best Value Pair) 6L6WGB=5881 Sylvania and Philips JAN black base 1979-1986 (72ma and 73.4ma)
$ 119.99
(!!!!) (Best Value Pair) 6L6WGB=5881 Sylvania NOS and like new same build 1970's (74ma and 75ma)
$ 129.99
(!!!) (Best Single #1) 6DJ8 EI YUGO NOS branded Siemens 1979 (16.4/17.2ma) 1-5% section balance
$ 39.99
$ 69.99
$ 19.99
(!!) (Recommended Single) 6550A GE branded Westinghouse stapled plates NOS 1980 era (129ma)
$ 159.99
$ 157.99

