"Ei-RC" - Electronic tubes factory
ECC81/12AT7
ECC81 is R.F. Double Triode
Data Sheet Page 1 of 4
Quick reference data...
"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...