12AT7
"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=10m A
- Transcoductance S=5,5m A/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 (m A)
9-(4+5)
4-5
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"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 (m A) S 3,75 5,9...
