JJ Electronic EL84 Burned In Power Vacuum Tube for Electric Guitar Amplifier - Apex Matched Pair

Matched Pair JJ EL84 Apex Matched Burned In Vacuum Power Tubes

The JJ Electronic EL84 is a solidly built EL84 / 6BQ5 with excellent tonal qualities. JJ’s rugged construction of this tube offers high reliability without any compromise to the sound. This tube has solid lows with warm bright mids and shimmery highs. When saturated the harmonics are rich and dynamic. The JJ EL84 nails the classic sound of this tube. This tube can replace any EL84 or 6BQ5 tube.

The Apex Burn In method happens prior to matching and runs each tube with a continuous identically high plate current for eight hours (at about 90% of the maximum rated plate dissipation). The plate current is auto-controlled by a self regulating circuit to ensure each tube is burned-in using the same amount of constant plate current.

The Apex Matching systems are highly robust and extremely accurate, measuring current and voltage to provide the best possible matching for tubes.