Low Test C247 47 RCA Cunningham Globe Balloon Audio Receiver Vacuum Tube  

Made in the USA

Black plate, top spacer, hanging V filament, glass insulator, solid square foil getter frame, side getter flash and a UY 5 Pin engraved base

Excellent strong NOS test results for Gm: 

       45 (some life still left)

For Gm, 50 is the suggested minimum value

No shorts.

For reference we use a calibrated Military TV-7 tester

Estimated delivery within the USA is from 3 to 7 business days

Our standard service is US Postal 1^st class

We combine shipping when applicable

Please contact us with any questions