1 NOS Zenith 6SN7GTB Vacuum Tube. Hickok TV-7D/U tests read 118/118. This tube features ribbed gray plates, copper grid pins, a round getter on the side and a low-loss brown Micanol base.
1 NOS Zenith 6SN7GTB Vacuum Tube. Hickok TV-7D/U tests read 118/118. This tube features ribbed gray plates, copper grid pins, a round getter on the side and a low-loss brown Micanol base.