Set of four matched power vacuum tubes for use in guitar and Hi-Fi amplifiers that offer a combination of both great tone and reliability. They are characterized by sparkling highs, good mids, and a solid bottom end. Quality construction and a low failure rate make them a terrific choice for any amp requiring EL84 tubes. Tubes have oval bases and provide maximum plate power of 12 W. Height (without pins): 69.85 mm. Diameter: 21.3 mm.