EF86

Svetlana EF86 High-Performance Audio Small-Signal Pentode General Characteristics Electrical Heater Voltage (AC or DC) Heater Current (typical) Cathode: Cathode-to-heater potential Mechanical Operating position: Base Basing diagram Socket Cooling Envelope temperature (max) Nominal dimensions: Diameter Base to top Overall height Net weight Maximum Ratings DC plate voltage Vp Screen grid voltage Vg2 Plate dissipation Screen grid dissipation Cathode current T he Svetlana EF86 is a glass envelope miniature pentode intended for high-quality audio preamplifier service. Close manufacturing specification tolerances and improved processing provide improved reliability and superior sonic performance. The Svetlana EF86 is manufactured in the Svetlana factory in Russia, and is designed to be a direct replacement for any EF86 or 6267 type. The Svetlana EF86 features: Low microphonics and low heater hum induction - suitable for input stages in high-gain microphone preamps, phono preamps or as a gain stage in condenser microphones Electrostatic shield is built-in, covers entire inner structure—no external shield required Low distortion in pentode or triode connection Extended processing and aging for stability and reliability Comprehensive static and audio amplifier testing before and after aging min. typ. max. 5.7 6.3 6.9 V Svetlana EF86 Outline drawing 0.2 A oxide-coated, unipotential B ±100 V Any 9-pin miniature noval JEDEC 9CQ Svetlana SK9A or equivalent Radiation and...