(!!!!) (Recommended Pair) G-27 Majestic Balloon used/good 1930 era (4.7ma and 4.8ma)
(!!!!) UX-280 RCA Radiotron Balloon used/60% 1930 era some white oxide flakes inside tube (38/40 and 38/40)
(!!!!) UX-280 RCA Radiotron Balloon used/60-65% 1930 era some white oxide flakes inside tube (40/40 and 42/40)
(!!!) (2nd Best Pair) 26 Sylvania chrome plate NOS 1940's (5.3ma and 5.3ma)
(!!!) (Best Balloon 50) 450=50 Sparton Balloon tests like new 1930 era (61.5ma) (High mA and Gm) (rare 50)
(!!!) (Best Pair) 26 Sylvania branded Zenith black plate NOS 1946 (5.4ma and 5.6ma) (rare)
(!!!) (Best Single) 127 Arcturus Blue Balloon tests like new 1930 era in white box (5.6ma) (High Ma and Gm)
(!!!) (Pair) 26 Super Silvertone ST-14 engraved base used/good 1930's (4.3ma and 4.8ma)
(!!!) (Recomended Balloon 50) CX-350 Cunningham Balloon used/good 1930 era - very good condition (44.2ma) (rare 50)
(!!!) (Recommended Pair) 26 GE and Ken Rad NOS same build 1940's (3.9ma and 4.0ma)
(!!!) (Recommended Pair) 26 Sylvania branded Zenith black plate NOS 1946 (4.9ma and 5.0ma) (rare) 1% matched
(!!!) (Recommended Pair) CX-326 Cunningham balloon used/good 1930 era (5.0ma and 5.2ma)
(!!!) (Recommended Single) 127 Arcturus Blue Balloon used/good 1930 era in white box (4.3ma)
(!!!) 231=31 US Made Balloon NOS 1920's (14.2ma)
(!!!) 280 Wizard Balloon used/60% 1930 era rattle inside base (38/40 and 39/40)
(!!!) 31 RCA Radiotron Balloon NOS 1920's (13.2ma)
(!!!) 80 Cunningham Balloon used/good 1930 era some white oxide flakes inside tube (44/40 and 48/40)
(!!!) CX-380 Cunningham Balloon used/65% 1930 era some white oxide flakes inside tube (39/40 and 44/40)
(!!) (Best Single) UY-227 RCA Radiotron Balloon tests like new 1930 era (10.2ma)
(!!) (DISPLAY TUBE) 180 Arcturus Blue 1930 era (does not work - display tube only)