12AX7

12AX7 HIGH-MU TWIN AUDIO TRIODE The Svetlana™ 12AX7 is a miniature glass-envelope smallsignal dual triode intended for use as a low-noise preamplifier for audio applications. It is a direct plug-in replacement for any 12AX7, 7025 or ECC83 in music or audio amplifiers. All ratings of the Svetlana 12AX7 meet or exceed those of the original version; top-quality cathode materials and extensive aging yield outstanding performance in high-fidelity amplifiers. The Svetlana 12AX7 is made exclusively at the Svetlana Electron Devices factory in St. Petersburg, Russia, and is marketed worldwide by PM Components Ltd. and in the USA by PM of America Inc. TYPICAL MECHANICAL AND ELECTRICAL PARAMETERS Electrical Cathode Heater voltage (AC or DC) Heater current Heater-cathode voltage Amplification factor (nominal) Transconductance (nominal) Plate resistance (nominal) Typical equivalent hum and noise voltage, per section, rms averaged, Rg=0 Interelectrode capacitances (typical), per section, with cathode grounded: Input Output Grid to anode Base Basing diagram Socket miniature Operating position ____________________________________________________________ HEADQUARTERS: CERAMIC TUBE DIVISION: 1687 Shelby Oaks Drive 895 B. Street PMB #481 Suite 8 Hayward, CA 94541 Memphis, TN 38134 Phone / Fax: 510-885-1247 Phone: 901-388-2424 Fax: 901-388-2405 www.svetlanausa.com Oxide-coated, unipotential 12.6 volts AC or DC (+0.6 volts), center-tapped 150 mA (12.6v) or 300 mA (6.3v) +-200 volts peak 100 160...