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(!!!) (BEST PAIR) UX-112A and CX-112A RCA/Cunningham Balloon engraved base used/tests like new 1930 era (8.3ma and 8.4ma) (Gm like new)
(!!!) (Best Value Pair) 12A Sylvania NOS and Philco like new 1930's - 1940's same build (6.7ma and 6.8ma)
(!!) (Recommended Pair) CX-112A Cunningham Balloon engraved base used/good 1930 era (6.2ma and 7.0ma) (same Gm)
(!) (Best Single) UX-112A RCA Balloon engraved base like new 1930 era (9.6ma)
(!) UX-112A Radiotron Balloon engraved base used/good 1930 era (7.4ma)
112A Rayovac Balloon engraved base used/very good, internals like a UX-112A RCA (8.5ma)
