Vintage Metal RCA 6H6 VACUUM TUBE NOS IN ORIGINAL BOX -TESTED!!!

KEN-RAD JAN CKR 6H6 Vacuum Tube Metal NOS/NIB

NOS Ken-Rad 6H6 Vacuum tube - White Box - Tested

5T4 NOS Ken-Rad amplifier radio audio metal electron vacuum tube tested 5T4

6H6 NOS Tube Tested

(1) Tested Balanced Philips 6H6 Tube Twin Diode Black Metal Tube

(1) Tested RCA 6H6 Tube Date Code 317 RCA 6H6 Twin Diode Black Metal Tube

6H6 KEN-RAD VACUUM TUBE ~ NOS ~ NIB ~ Tested JAN-CKR ~ Western Electric