Part number : 12AX7
Functions : Double Triode
Package information : Electronic Tube Type
Manufacturer : General Electronics
The texts in the PDF file :
The 12AX7 is a miniature high-mu twin triode each section of which has an individual cathode connection. The Double Triode is especially suited for use in resistance-coupled voltage amplifers, phase inverters, multivibrators, and numerous industrial-control circuits where high voltage gain is desired. A center-tapped heater permits operation of the tube from either a 6.3-volt or a 12.6-volt heater supply.
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Reference Site : https://en.wikipedia.org/wiki/