12AX7 vs. 12AT7 phase inverter, clean lead

12AX7 vs. 12AT7 phase inverter, clean lead

Jolo Carrera

In vacuum tube amplifiers, the preamplifier tube closest to the output tubes is known as the phase inverter.

Without getting too technical about it, it turns out that what you put in the phase inverter, or PI, spot can …

Recent comments

  • James Toensing.

    interesting... i've been researching different tubes for the…

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