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(!!!!!) (Best Value Pair) 45 RCA/Cunningham engraved base used/75% (22.4ma and 23.8ma) (Close Gm) (Excellent sonics in SET amp)
(!!!!!) (Best Value Pair) 45 Tungsol used/very good similar build different top mica 1930's - 1940's (27ma and 25ma) (sound great - one of my favorites)
(!!!!!) (Best Value Single) 45 Sylvania green leaf NOS 1940's production stains on glass (37.2ma) (Highest mA and Gm)
(!!!!!) (Good Value Single) 45 Sylvania branded RCA NOS 1952 production stains on glass (31.6ma)
(!!!!) (Best Single) CX-345 Cunningham Balloon used/tests like new 1930 era (41ma)
(!!!!) (Single) ER-245 Eveready Raytheon Balloon box plate used/good 1932 (31ma) (nice condition)
(!!!) (Best Value Single) 45 Tungsol tests like new 1940's (40ma)
(!!) ER-245=45 Eveready Raytheon Balloon box plate used/good 1932 (22ma) (Gm=60%)
(!!) UX-245 RCA Radiotron Balloon used/good 1930's rattle inside base (20.8ma)
245=45 Silvertone Balloon engraved base 1930 era used/tests like new (42ma Gm=2230)
CX-345 Cunningham Balloon used/52-55% Ma and Gm 1930 era good condition (19ma)
G-45 Majestic Balloon (display tube) (gassy)
UX-245 RCA Balloon (display tube)
UX-245 RCA Balloon (display tube) (gassy)
