"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 Telephone: FAX: Postal address: Electronic mail: Web site: Vf If 6,3 300 9-(4+5) 12,6 150 4-5 (V) (mA) +381 18 550 741 +381 18 550 806 Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia [email protected] 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 Telephone: FAX: Postal address: Electronic mail: Web site: Anode voltage Va 100 250 (V) Grid voltage Vg 0 -8,5 (V) Anode current Ia 11,8 10,5 (mA) Transconductance S 3,1 Amplification µ 19,5 17 Internal resistance Ri 6,25 7,7 2,2 (mA/V) (kΩ) +381 18 550 741 +381 18 550 806 Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia [email protected] 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) Vao 550 Va 300 Anode dissipation Wa 2,75 (W) Cathode current Ik 20 (mA) Grid voltage Vg -100 (V) Grid voltage, peak Vgp -250 (V) Grid resistor (automatic bias) Rg 1 (MΩ) Cathode to heater voltage Vkf 180 (V) Cathode to heater circuit resistance in phase splitting circuits Rkf 150 (kΩ) Anode voltage Telephone: FAX: Postal address: Electronic mail: Web site: (V) +381 18 550 741 +381 18 550 806 Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia [email protected] http://www.eierc.com/rc/default.htm "Ei-RC" - Electronic tubes factory ECC82/12AU7 Data Sheet Page 4 of 4 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 [email protected] http://www.eierc.com/rc/default.htm