The EL34 audio tube is perhaps the most popular output audio tube of all time. EL34 vacuum tubes use in guitar tube amplifiers and hifi tube audio amplifiers has been prominent for decades. Marshall tube amps are the most well-known EL34 tube guitar amplifiers but there are many others who arrived on the scene in later years. In the tube audio world, it was companies like Dynaco, Leak, and Mullard among others who help boost the EL34 tube’s popularity.
Other common substitutes for EL34 vacuum tubes are 6CA7 and KT77 tubes. Although not identical, they are close enough to be considered direct substitutes in almost any instance. The EL34, 6CA7 and KT77 also have similar pin outs. Be sure to check out our EL34 / 6CA7 / KT77 tube reviews page for more information regarding the sound qualities of these tubes.
Many of the EL34, 6CA7 and KT77 tubes listed below also have customer tube reviews. We also indicate top sellers for the EL34 tube type.