12AU7

"Ei-RC" - Electronic tubes factory Data Sheet Page 1 of 4 ECC82/12AU7 ECC82 is A.F. Double Triode Quick reference data • • • Anode current Ia=10,5mA Transcoductance S=2,2mA/V Amplification µ=17 Heating Heating is indirect by AC od DC, with serial or parallel supply. Heater voltage Heater current pins Vf If 6,3 300 9-(4+5) 12,6 150 4-5 (V) (mA) Telephone: FAX: Postal address: Electronic mail: Web site: +381 18 550 741 +381 18 550 806 Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia eirc@eierc.com http://www.eierc.com/rc/default.htm "Ei-RC" - Electronic tubes factory Data Sheet Page 2 of 4 ECC82/12AU7 Dimensions and connections Base: Noval Typical characteristics and operating conditions Anode voltage Grid voltage Anode current Transconductance Amplification Internal resistance Telephone: FAX: Postal address: Electronic mail: Web site: Va Vg Ia S µ Ri 100 0 11,8 3,1 19,5 6,25 250 -8,5 10,5 17 7,7 ( kΩ ) (V) (V) (mA) 2,2 (mA/V) +381 18 550 741 +381 18 550 806 Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia eirc@eierc.com http://www.eierc.com/rc/default.htm "Ei-RC" - Electronic tubes factory Data Sheet Page 3 of 4 ECC82/12AU7 Limiting - maximal values (design center rating system) Anode voltage Anode dissipation Cathode current Grid voltage Grid voltage, peak Grid resistor (automatic bias) Cathode to heater voltage Cathode to heater circuit resistance in phase splitting circuits Vao Va Wa Ik Vg Vgp Rg Vkf Rkf 550 300 2,75 20 -100 -250 1 180 150 (V) (W) (mA) (V) (V) ( MΩ ) (V) ( kΩ ) Telephone: FAX: Postal address: Electronic mail: Web site: +381 18 550 741 +381 18 550 806 Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia eirc@eierc.com http://www.eierc.com/rc/default.htm "Ei-RC" - Electronic tubes factory Data Sheet Page 4 of 4 ECC82/12AU7 Application note: This tube can be used without precautions against microphony in equipment which is characterized by Vi ≥ 10mV for an output of 50mW of the output tube (or Vi ≥ 100mV for 5W output), provided that average acceleration of the tube is not greater than indicated in the Section "Microphonic effect" from the "Application directions". When the center tap of the heater transformer is grounded, Rg ≤ 0,3MΩ and Rk is sufficiently decoupled, and the disturbance level from hum and noise will be better than 60dB bellow 100mV. Telephone: FAX: Postal address: Electronic mail: Web site: +381 18 550 741 +381 18 550 806 Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia eirc@eierc.com http://www.eierc.com/rc/default.htm