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(!) CX-112A RCA Cunningham Balloon ribbed plate engraved base like new 1930 era (9ma)

(!) CX-112A RCA Cunningham Balloon ribbed plate engraved base like new 1930 era (9ma)

$ 49.99

CX-112A RCA Cunningham Balloon ribbed plate engraved base like new 1930 era in white box

9ma

Gm=1700

 

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

See more: vacuum tube
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