This is a (UT ~ USED and TESTED) Tube in Great Condition!
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. Requires a noval 9-contact
socket. This tube is also a main stay in many Guitar and
Bass Amplifiers.
The German Made ECC83 is becoming Very difficult to find
but Well worth checking out. This particular tube is in
Very good Condition!
Electrical Data:
Heater Voltage ........................ 6.3/12.6 V
Heater Current ........................ 0.3/0.15 A
Preferred Substitutes ............ 12DF7 12DM7 12AX7
Substitutes .................................. 12AD7
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on 12AX7's