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"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
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12AT7 Datasheet
