The product is a Lot Of 3 Raytheon NOS 6BY5GA Vacuum Tube, manufactured in the United States. This vintage audio part is a sought-after component for vintage audio enthusiasts and collectors. The Raytheon brand is known for its quality vacuum tubes, and the 6BY5GA model is a reliable choice for amplifiers and audio equipment. These two tubes are new old stock, ensuring they are in top condition for use in vintage audio setups.