What does 12AX7 mean?

What does 12AX7 mean?

12AX7 (also known as ECC83) is a vacuum tube that is a miniature dual- triode 6AV6 with high voltage gain. Developed around 1946 by RCA engineers in Camden, New Jersey, under developmental number A-4522, it was released for public sale under the 12AX7 identifier on September 15, 1947.

What is the best sounding 12AX7?

The Mullard 12AX7 / ECC83 is a Very Smooth Sounding tube. It is one of the best sought after European valves made. The NOS tubes are becoming a little rare to find. As far as the New Production tubes go . . . . . . . . . . . . . . . . . . . . . . Buy NOS! The RCA 12AX7 is simply the hottest sounding of the US made tubes.

Are ei 12AX7 tubes any good?

But there is a problem. Ei 12AX7’s are notorious for having extreme Microphonic problems. If they get past the microphonics they are a killer tube to own. They are great for audio amplifiers and guitar amplifiers alike. The Bugera 12AX7A is most likely the best of the modern day manufactured tubes.

What is a Mullard 12AX7?

Mullard 12AX7 has a very pleasing low-mids that gives extra depth to source materials. Mullard 12AX7 is an excellent choice for upgrading the factory-installed 12AX7 and has become the go-to standard for audio applications. A 12AX7 is a high gain tube.