Toshiba Vacuum Tube 6V6-GT Set of 2 (Pair) Original Box and Internal Packing Included, Continuity Tested ■Condition and Inspection Details Both tubes are in excellent condition, with the original box and internal cardboard packing from the time. Heater Continuity Check: Continuity between pins 2 and 7 has been confirmed with a tester. Appearance: Clear printing. ■Remarks This product has a specification where unused pins (1 and 6) are omitted from the manufacturing process, but it is a standard structure for 6V6-GT. These are valuable, made-in-Japan Toshiba tubes, perfect for replacement in guitar amplifiers and audio amplifiers.