(1) Tested RCA 6AW8 Tube with Box Date Code BKP 6AW8 High Mu Triode Pentode

(1) Tested RCA 5T8 Tube with Box Code KP Triple Diode High Mu Triode Tube

(1) Tested RCA 6AT6 Tube with Box Date Code BF Twin Diode High Mu Triode Tube

6CW4 RCA NUVISTOR NOS BOXED VALVE TUBE (LC48)

(1) Tested 1950 RCA 6SQ7 Tube with Box Metal Twin Diode High-Mu Triode Tube

(1) Tested 1944 RCA JAN CRC 12K8Y Tube with Box Date Code H5E Triode Hexode Tube

1 x 6DS4 RCA-GE Nuvistor Tube*NOS*NIB*(10 Available)

(1) Tested Very Strong RCA 6GN8 Tube with Box Date Code DL High Mu Triode Tube