RCA Cunningham Type 47
PENTODE TYPE TUBE
POWER VACUUM TUBE
AMPLIFIER TYPE TUBE
RADIO VACUUM TUBE
GUITAR AMP TUBE
VINTAGE STOCK
Coke Bottle Shape
Clear Glass
Black Plate
Bottom Foil-D Getter
Plastic Base
Label Engraved on Base
TESTED STRONG
MADE IN USA
DATE CODE: Z3
TESTED on HICKOK TV-7
Results: 60
Minimum: 50