ECC81

"Ei-RC" - Electronic tubes factory Data Sheet Page 1 of 4 ECC81/12AT7 www.datasheet4u.com ECC81 is R.F. Double Triode 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 Telephone: FAX: Postal address: Electronic mail: Web site: Vf If 6,3 300 9-(4+5) 12 150 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 ECC81/12AT7 Dimensions and connections Base: Noval www.datasheet4u.com 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 -1,0 3,0 3,75 62 16,5 170 -1,0 8,5 5,9 66 11 200 -1,0 11,5 6,7 70 10,5 250 (V) -2,0 (V) 10 (mA) 5,5 (mA/V) 60 11 (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 ECC81/12AT7 Limiting - maximal values (design center rating system) Anode voltage Anode dissipation Cathode ...