(!!!!) (BEST SINGLE) 5U4G National Union NOS 1951 (56/40 and 58/40)
(!!!!) (BEST SINGLE) 5U4G TUNGSOL NOS 1953 (56/40 and 52/40)
(!!!!) (Best Value Pair) 5881 Tungsol branded "DT 281" 1950's test like new (74.2ma / 72.4ma)
(!!!!) (Best Value Pair) 5881 Tungsol used/75% 1957 (54ma and 59ma) (Gm 75%)
(!!!!) (BEST VALUE PAIR) JTL-5687 Tungsol black plates "U" getter used/good 1950's faded printing (29/34ma and 30/32ma)
(!!!!) (BEST VALUE SINGLE) 5U4G TUNGSOL NOS 1952 slightly tilted glass (52/40 and 52/40)
(!!!!) (Best Value Single) 6550 Tungsol branded Sylvania smooth gray plate used/tests like new 1960 era (138ma)
(!!!!) (Best Value) JTL-6X4 Tungsol 1950's curved "D" getter low hours/like new reprinted in 1977 (58/40 and 60/40)
(!!!!) (Best Value) JTL-6X4 Tungsol 1950's curved "D" getter low hours/like new reprinted in 1977 (60/40 and 60/40)
(!!!!) (Good Value) JG-12AY7 GE box plates like new 1953 (3.3/2.5ma)
(!!!!) (Recommended PAIR) 5998A Sylvania JAN NOS 1980 (144/131ma and 138/144ma) (5998A=7236) (Copy)
(!!!!) (Recommended Pair) 5V4G National Union NOS 1951 same date codes (58-59/40 and 57-58/40 x 2 tubes) 1-3% matched
(!!!!) (Recommended Pair) 5V4G RCA 1950's low hours/like new (60-62/40 and 60-64/40)
(!!!!) (Recommended Pair) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's 1-2% matched (53-55/40 x 2 tubes)
(!!!!) (Recommended Pair) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's 1-2% matched (54-55/40 and 54-55/40 x 2 tubes)
(!!!!) (Recommended Pair) 717A=JAN-CTL-VT-269 Tungsol NOS 1940's (9.4ma and 8.5ma)
(!!!!) (Recommended Single) 12AY7 GE NOS 1960's (2.2/2.5ma)
(!!!!) (Recommended used pair) 5881 Tungsol used/good 1960's (63.2ma and 66ma)
(!!!!) (Single) 12AY7 RCA NOS 1960's (2.1/1.9ma) (Fender, Clark, Decware)
(!!!!) (Single) 6CG7 Tungsol used/good 1960 era black shield between plates (7ma/7ma)
