The Ampex 12AX7A Vacuum Tube is a miniature
type used as a phase inverter or amplifier
in guitar Amplifiers and audio gear, AC/DC radio
equipment and in many diversified
applications such a multivibrators or oscillators in
industrial control devices. They require a noval
9-contact socket.
This tube is a main stay in many
recording studio Guitar and Bass Amplifiers. They are also
widely used in recording studio Outboard gear such as Mic
preamps and such.
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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