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(!!) UX-201-A Radiotron Balloon used/good brass pins 1930's (2.6ma and Gm=700)
(!!) UX-226 Radiotron Balloon used/65% (3.8ma, Gm=900)
(!!) UX-226 RCA Balloon NOS 1930 era (7.6ma, Gm=1000) (very nice single)
(!!) UY-227 RCA Balloon NOS 1930 era (4.3ma)
(!!) UY-227 RCA Radiotron Balloon used/good 1930 era (3.5ma)
(!!) UY-227 RCA Radiotron Balloon used/good 1930 era (3.7ma)
(!!) UY-227 RCA Radiotron Balloon used/good 1930 era (3.8ma)
(!!) UY-227 RCA Radiotron Balloon used/good 1930 era (4.0ma)
(!) (#1 12AT7 Value) 12AT7 Sylvania branded Philips black plates NOS 1970's (7.6/8.2ma)
(!) (#1 231D Best Value Pair) 231D Western Electric NOS 1953 (1.8/1.8ma)
(!) (#1 231D Best Value Pair) 231D Western Electric NOS 1954 (1.6/1.6ma)
(!) (#1 24A Balloon) 24A BRUNSWICK Balloon used/tests like new, small crack in base (48/25) (3.8ma)
(!) (#1 Type 30 single) 30 RCA Victor NOS 1940's original box (4.3ma)
(!) (#2 231D Best Value Pair) 231D Western Electric NOS 1953 (1.7/1.7ma)
(!) (#2 6EW7 Single Tube) 6EW7 GE Japan BIG BOTTLE NOS 1960's (5.0/37ma)
(!) (- Best Value) JAN-5847A=404A Amperex USA NOS 1988 (23ma and 24ma)
(!) (4th Best Pair) 6FY5=EC97 GE and Sylvania NOS made in JAPAN same build (12ma and 14ma)
(!) (BEST PAIR #2) JAN-5725W=6AS6 Philips by Sylvania black plate NOS 1982 (5.2ma and 5.2ma) 1% matched
(!) (Best Pair #3) 12AU6 RCA NOS 1957-1961 (9.6ma and 10.2ma)
(!) (Best Pair #3) 6661=6BH6 GE NOS 1970's (6.2ma and 6.2ma)
