Telefunken 12AX7/ECC83 – Smooth or Ribbed Plates

If you're searching for the finest 12AX7 tube, look no further than the NOS Telefunken 12AX7/ECC83. These vintage originals, expertly crafted in Germany, are widely regarded as some of the best preamp tubes ever made for both guitar amplifiers and hi-fi systems, delivering unparalleled tone, clarity, and unmatched quality—making them a top choice for audiophiles and musicians alike.

• Smooth Plate: Known as the “King of Cream,” this version offers the smoothest, warmest tones, making it ideal for achieving rich, creamy soundscapes.

• Ribbed Plate: Versatile and dynamic, perfect for both guitar amps and high-fidelity audio applications.

Free Tube Matching
Order any quantity, and we’ll match your tubes for free to ensure optimal performance.

With a reputation for its legendary sound quality, the Telefunken 12AX7 is in high demand. Our stock is limited, so act fast! While we strive to provide original boxes when available, many vintage tubes were shipped in bulk packaging. We guarantee the performance of all our tubes, and each one is thoroughly tested on multiple industry-standard testers. If for any reason your tube doesn’t perform as expected, we offer a full refund.

eed help deciding what tubes are best for you?

Use our plate cheat sheet and vacuum tube buyers guide to determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at Support@FuzzAudio.com or by using our chat located on our shop page if you have further questions.

NOS vs. ANOS vs. Test NOS

These designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell test identically, come with 100% life and are guaranteed to work in your device!

If you are picky about owning an original box or wanting a specific logo please reach out to us before purchasing.

1. NOS (New Old Stock) Tubes- are 100% brand new vintage tubes in mint cosmetic condition with show zero signs of use. While we wish every tube we sell could come with a strong logo, not all NOS tubes will have an original logo still intact. 

2. ANOS Tubes- otherwise known as “almost new old stock” tubes are basically new, but may show slight signs of use in cosmetic condition, such as a missing logo or slightly bent pins. An original box is possible but unlikely. 

3. Test NOS Tubes- are used but still operating to specification with 100% life. These tubes are equal in function to NOS valves, yet they cost considerably less because they have cosmetic blemishes. If you plan to disappear your tubes into the back of an amplifier or do not care what the tubes look like, then this is cost effective choice. Blemishes and cosmetic imperfections do not affect tone…

Logos: Vintage tubes have a wide variety of logos printed on them. It is not uncommon to see a Mullard made tube with an RCA or GE logo, or a GE made tube with a Mullard logo. Your tube may come with a logo such are Heath Kit, Baldwin, Fisher, Hammond, Magnavox, Fender, Gibson, Silvertone, etc. but the true manufacturer of that tube will be correct to your order. If you are looking for a specific logo please reach out before purchase.

Our Standards:

• All tubes are tested for microphonics and are guaranteed to work in sensitive audio applications
• All tubes sold are guaranteed to have strong (to spec) NOS test scores with 100% life
• All tubes are tested on a calibrated Hickok 539C, Maxi-Matcher, E-Tracer or other industry standard tube analyzers
• Tubes are guaranteed for one year and can be returned within 30 days
• Preamp tubes matched by gain and mutual conductance (Gm)
• Power tubes matched by mA and Gm

Don’t forget to email Support@fuzzaudio.com or reach out to us via chat if you need help picking out valves for your device.