The Ruby 12AX7 / 12AX7A Vacuum tube 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 used
in many Guitar and Bass Amplifiers.
Electrical Data:
Heater Voltage ........................ 6.3/12.6 V
Heater Current ........................ 0.3/0.15 A
Preferred Substitutes ..................................
12AX7C5, 12AX7C5 HG, 12AX7C5 HG+,
12AX7ACZ, 12AX7ACZ HG, 12AX7ACZ HZ+, 12DF7 12DM7
ECC83.
Substitutes .................................. 12AD7
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