(!!!!) (Best Pair) 201A Silvertone Balloon NOS and like new 1930 era (4.2ma and 5.0ma) (Highest mA and Gm)
(!!!!) (Best Pair) CX-301A Cunningham and UX-201A RCA Balloon NOS 1930 era (3.1ma and 3.5ma)
(!!!!) (BEST SINGLE) 201-A Silvertone Balloon NOS 1930 era (3.8ma and Gm=750)
(!!!!) (Good Value Pair) CX-301-A Cunningham used/good 1930 era (2.0ma and 2.0ma)
(!!!!) (Good Value Single) CX-301-A Cunningham used/good 1928 (2.6ma Gm=700)
(!!!) (BEST PRICE) 80 US Brands used/good (5 in stock) ($9.99 each)
(!!!) (PAIR) UX-201-A Radiotron Balloon used/good brass pins 1930's (2.3ma and Gm=700 x 2 tubes)
(!!!) 201A Silvertone Balloon NOS 1930 era (1.8ma and Gm=500)
(!!!) 80 RCA Victor NOS 1948 (56/40 and 58/40)
(!!!) CX-301-A Cunningham NOS 1930 era (2.6ma Gm=800)
(!!) (Best Single) UX-201-A Radiotron Balloon used/tests like new brass pins 1930 era (4.4ma and Gm=800)
(!!) (Best Single) UX-201-A Radiotron Balloon used/tests like new brass pins 1930 era (4.8ma and Gm=800)
(!!) (Recommended Single) 80 Philco by Sylvania NOS 1951 - 2 stains/blemishes inside glass (57/40 and 60/40)
(!!) UX-201-A Radiotron Balloon used/good brass pins 1930's (2.6ma and Gm=700)
(!) 201A Aristocrat NOS 1930's (2.7ma and Gm=900)
(!) 80 Delco by Sylvania ST-shape used/tests like new 1947 rattle inside base (57/40 and 60/40)
(!) 80 Ken Rad ST-shape tests like new mid-1940's (52/40 and 54/40)
(!) 80 National Union used/strong 1940's (53/40 and 56/40)
(!) 80 Tungsol ST-shape tests like new 1940's (54/40 and 56/40)
(!) 80 Tungsol ST-shape tests like new 1940's (57/40 and 60/40)
