MIN = 50-50.
National Union NU 6N6G 6N6 G Vacuum Tube Tested Black Plate
NEW OLD STOCK 1940's VINTAGE JOINT ARMY-NAVY RAYTHEON BLACK PLATE 80 RECTIFIER
(1) Tested RCA JRC 3Q4 Tube with US Army US Navy Box Date Code 9-43 RCA 3Q4 Tube
(1) Tested RCA 12AU7A Tube Date Code K1 RCA 12AU7 A Twin Triode Tube (b)
A VINTAGE JAN/USN-CRC/RCA 5963/12AU7 LONG BLACKPLATE NOS/NIB VAC TUBE YEAR 1958
(1) Tested RCA JRC 6AK6 Tube Date Code 3-39 RCA 6AK6 Power Amplifier Pentode
