High-Mu Triode
Miniature type used as cathode-drive amplifier,
frequency converter or oscillator at frequencies up to
300 MHz in television and FM receivers. Requires
a miniature 7-contact socket. For maximum ratings,
characteristics, and curves refer to type 12AT7.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ............................... 0.15 A
Maximum Heater-Cathode Voltage ................. 90 V
Preferred Substitutes ..................... 6664, EC92
Substitutes ........................... 6C4 6DR4