The RCA ( Radio Corporation of America ) 12AX7 is a
miniature type used as phase inverter
or amplifier in 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 also a main stay
in many Guitar and Bass Amplifiers. It is arguably the
best of the American made tubes besides Tung-Sol.
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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