Description
This listing is for a set of four Raytheon CK 6533 subminiature vacuum tubes. These tubes are high quality, new-old-stock and have never been used. The tubes are low noise triodes and are perfect for vintage audio and video equipment. The tubes were manufactured in the United States in 1967 and are considered a rare find for collectors. They are compatible with a variety of vintage electronics and are sure to enhance the performance of any device they are paired with.