EL34 Mullard Tube — Matched Pair The Mullard name and trademark have been acquired by the New Sensor Corporation. This new production Mullard EL34 tube is manufactured at their Xpo-Pul factory (also known as Reflektor) in Saratov, Russia. New Sensor is an American corporation and since taking ownership of this factory has been steadily improving the quality of current production tubes. Compared to the New Sensor Corp. Svetlana which has a rather strident midrange, the new Mullard EL34 has been considerably smoothed. The overall sound is more balanced and very warm. This is great news for people with something like a Marshall since they are inherently midrangey. The low mids are nicely balanced to prevent any boomy tone. This new production EL34 tube is New Sensor's reissue of the famous Mullard EL34.