2 Vintage Matched
RCA
JRC 6X4
Black Plate
Rectifier Tubes
US Navy/US Army
NOS NIB
Buyer gets both of the tubes in the photos. These tubes were tested in my Military Hickok Cardmatic to make sure these were perfect. All the tests were excellent and a match. Both of these tubes were made in the USA, by RCA, in 1949, for the US Navy. These are the black plate, slanted square getter version. These are fantastic, rare rectifier tubes.
These are getting scarce and are a high end tube used by most of the professionals. Great for any audio amplifier. These tubes are what audiophile enthusiasts are looking for. The tubes will come in their original RCA JRC 6X4 boxes, as shown. These tubes are NOS (New Old Stock). I will pack carefully & ship very quickly.
*Please view all the photos carefully, as they are also a big part of the description of the tubes!
RCA codes: 9-43 (1949)