ECC81

"Ei-RC" - Electronic tubes factory ECC81/12AT7 ECC81 is R.F. Double Triode Data Sheet Page 1 of 4 Quick reference data Anode current Ia=10mA Transcoductance S=5,5mA/V Amplification µ=60 Heating Heating is indirect by AC od DC, with serial or parallel supply. Please note that, in case of serial supply, a current limiting device must be inserted in the heater circuit for limiting the current when switching on. Heater voltage Heater current pins Vf 6,3 12 (V) If 300 150 (mA) 9-(4+5) 4-5 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 "Ei-RC" - Electronic tubes factory ECC81/12AT7 Dimensions and connections Base: Noval Data Sheet Page 2 of 4 Typical characteristics and operating conditions Anode voltage Grid voltage Anode current Transconductance Va 100 170 200 250 (V) Vg -1,0 -1,0 -1,0 -2,0 (V) Ia 3,0 8,5 11,5 10 (mA) S 3,75 5,9 6,7 5,5 (mA/V) Amplification µ 62 66 70 60 Internal resistance Ri 16,5 11 10,5 11 (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 [email protected] http://www.eierc.com/rc/default.htm "Ei-RC" - Electronic tubes factory ECC81/12AT7 Limiting - maximal values (design center rating system) Anode voltage Anode dissipation Cathode current Grid voltage Grid resistor (automatic bias) Catho...