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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 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)
$ 99.99
1 pair) UX-112A and CX-112A Cunningham/Radiotron Balloon engraved base used/tests like new 1930 era in white boxes
1 tube) 8.3ma Gm=1700 (UX-112A) Radiotron nickel pins
1 tube) 8.4ma Gm=1700 (CX-112A) Cunningham brass pins
Vplate = 180V
Vgrid = -13.5V
Good used Ma = 5.5 - 7ma
Good used Gm = 1400-1600
stamped circular plate structure similar to RCA / Cunningham UX-112A and CX-112A
- RCA Radiola 16 from 1928
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