Extremely musical, with a sound that is rich, smooth, and highly detailed without being edgy.
Perfect for vintage equipment and a sure way to improve the performance of modern equipment.
Very close to the sonics of a Mullard EL34
Balanced throughout the entire music spectrum.
Bass goes deep and is tight, mids are sweet and well defined and highs are detailed and extended.”
Found in many British guitar amps and is associated with the “British Tone” as compared to the 616 which is generally associated with the “American Tone”
Introduced in 1953 by Mullard and its parent company Philips and, although no longer made by them, is now manufactured by JJ, Svetlana and Sovtek, Electro-Harmonix and Tung-Sol.