Made in Yugoslavia.
The EI ( Ei ) gray plate 12AX7 / ECC83 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. It requires a noval
9-contact socket. This tube is also a main stay in many
high end 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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