Preamp Tube FAQ: 12AX7, 12AT7, and 12AU7

preamp tube faqHave you been scratching your head about 12AX7, 12AT7, and 12AU7 Preamp Tubes? Well, our most frequently asked questions about them are answered here.

Preamp Tube FAQ: What do Preamp Tubes do?

Preamp Tubes amplify the very low signal coming from your guitar. The amplified signal is better prepared to go through the circuitry of your amplifier. This amplified signal then goes to your EQ controls, your Reverb, Auxiliary Outputs, and also into your Output Tubes. All tubes are essentially mini amplifiers within your amplifier.

You might also like this HumbuckerSoup article: What is the Difference Between the 12AX7, 12AT7, and 12AU7 Preamp Tubes?

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What is the Difference Between the 12AX7, 12AT7, and 12AU7 Preamp Tubes?

12AX7, 12AT7, and 12AU7Let's take a look at the less glamorous, but certainly important type of amplifier tube - the preamp tube.

The 12AX7, 12AT7, and 12AU7 all belong to the same family of nine contact, twin triode tubes. In many cases, these tubes are interchangeable and can easily be swapped. We will take a look at why you might, or might not want to swap out the different types of tubes.
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