High-Mu Twin Triode
The Amperex 12AT7 / ECC81 Vacuum tube is one of the very
best top of the line tubes ever made.
It is a miniature type used as a push-pull cathode-drive
amplifier or frequency converter in FM and TV
broadcast bands. It has also found wide use in high end
audio as a driver and phase-inverter. It requires a
miniature 9-contacts socket.
Electrical Data:
Heater Voltage .................... 6.3/12.6 V
Heater Current .................... 0.3/0.15 A
Preferred Substitutes ............ 12AT7WA,
12AT7WB, ECC81, 6201, 12AZ7, 6679, 12FV7, CV455, 6060,
CV4024, 12AT7WC, JG-12AT7WA, USN-12AT7WB, A2900, CV6091,
B739, M8162, E81CC, USN-CRC-12AT7WB, JRC-12AT7WA,
ECC801S, JAN-12AT7WC, GB-6201.
Substitutes ..........................