The Westinghouse 12AX7 Vacuum tube is a miniature type
used as a phase inverter or amplifier in
AC/DC radio equipment and in many diversified
applications such
multivibrators or oscillators in industrial control
devices. They require a noval 9-contact socket.
This tube is also a main stay in many Guitar
and Bass Amplifiers.
Electrical Data:
Heater Voltage ........................ 6.3/12.6 V
Heater Current ........................ 0.3/0.15 A
Preferred Substitutes ............ 12DF7, 12DM7,
ECC83
Substitutes ............................... 12AD7
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on 12AX7's