JJ Electronic EL34 Power Tubes Matched Quad

This matched quad of EL34 power tubes from JJ Electronic delivers the warm, harmonically rich overdrive that has defined classic British amplifier tone since the 1960s. JJ produces these in Slovakia using robust construction methods that extend tube life while maintaining the signature midrange punch and responsive breakup guitarists expect. Each tube in the quad is matched for plate current and transconductance, ensuring balanced performance across push–pull output stages and consistent power delivery.

The EL34 design produces approximately 25 watts per pair in typical Class AB configurations, with a plate dissipation rating of 25 watts per tube. JJ's version features a reinforced plate structure that handles high–voltage operation more reliably than vintage equivalents, reducing premature failure in demanding amplifier circuits. The tubes operate with standard EL34 pinout and biasing specifications, dropping directly into existing sockets without modification. Matched quads arrive tested and graded, with tolerance values tight enough for fixed–bias designs that demand precision across all four output tubes.

Features

• Matched quad configuration ensures balanced performance in push–pull amplifiers
• 25 watt plate dissipation rating per tube for reliable power
• Reinforced plate structure improves durability in high–voltage amplifier circuits
• Classic EL34 tonal character with warm midrange and responsive breakup
• Manufactured in Slovakia using traditional vacuum tube construction methods
• Standard pinout and biasing specifications for direct socket compatibility
• Matched for plate current and transconductance within tight tolerance values
• Approximately 25 watts output per pair in Class AB configurations