EL509

Svetlana EL509 / EL519 / 6KG6 High Performance Beam Power Tetrode The Svetlana EL509 is a beam power tetrode intended for use in class A, AB or B audio amplifiers and for class B or C RF amplification. Close manufacturing specification tolerances and improved high voltage processing provides improved reliability and superior performance. The Svetlana EL509 features: Increased peak cathode emission from new cathode materials; Stable operation from extended processing and aging; Gold-plated grid; Precise grid/screen alignment; Extraheavy glass envelope for ruggedness; Improved vacuum processing; Comprehensive testing before and after aging. The Svetlana EL509 is manufactured in Russia at the Svetlana factory and is designed to be a direct replacement for any 6KG6 or EL509. The strict manufacturing and quality controls at the Svetlana plant assure functionality and long life. Electrical Heater Voltage(AC,DC) Current Transconductance(nominal) Plate resistance(nominal) Interelectrode capacitances(typical): Grid to cathode Grid to plate Min Nom 5.7 6.3 2.5 Maximum Ratings DC plate voltage DC plate voltage, pulsed Grid2(screen) DC voltage DC cathode current Plate dissipation Grid2 DC screen dissipation Typical Operation Audio Amplifier, Class A1 (single tube) DC plate voltage Grid2(screen) DC voltage Grid1(control) voltage Peak grid drive Zero signal plate current Max signal plate current Effective load resistance Distortion at 1 watt into 8 ohms Output power at 5% dis...