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.
Electrical Data:
Heater Voltage ................................ 12.6/6.3 V
Heater Current ................................ 0.15/0.3 A
Preferred Substitutes .......... 12DF7, 12DM7, 12AX7
Substitutes .................................. 12AD7
Click Here For INTERESTING TUBE FACTS
on 12AX7's