Fuzz Audio's NOS RCA 5V4G Rectifier

The Heartbeat of Vintage Tone

Step back in time and infuse your amplifier with the authentic sound of a classic era. Introducing Fuzz Audio's New Old Stock (NOS) RCA 5V4G Rectifier tube. This vintage gem is a testament to American craftsmanship and a crucial component in achieving that sought-after, warm, and dynamic tone that defines the golden age of guitar amplification.

Key Features:

    • Genuine RCA Production: Experience the quality and sonic character that made RCA a legendary name in vacuum tube manufacturing.
    • NOS Condition: This tube is in pristine, unused condition, ensuring maximum performance and longevity. Or go "tests NOS" to save some money!
    • Essential for Vintage Amps: Designed for classic amplifier circuits, the 5V4G delivers the ideal voltage regulation and tonal response for recreating those iconic sounds.
    • Hand-Selected and Tested: Fuzz Audio meticulously tests each tube to guarantee its quality and performance.

Upgrade Your Sound

The rectifier tube is an often-overlooked component, yet it plays a significant role in your amp's power supply and overall sound. With the NOS RCA 5V4G Rectifier, you'll discover:

    • Enhanced Dynamics: Enjoy a more responsive and expressive playing experience.
    • Smoother, Richer Tone: Experience a noticeable improvement in harmonic complexity and overall warmth.
    • Increased Reliability: NOS tubes are known for their durability and long lifespan.

The Fuzz Audio Guarantee:

We stand behind the quality of our NOS tubes. That's why we offer a one year warranty to ensure your satisfaction.

Don't settle for less. Revitalize your amp with the legendary NOS RCA 5V4G Rectifier from Fuzz Audio!

Need 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. You should expect a legible logo and clean straight pins. An original box is likely but not guaranteed. 
  1. 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. 
  1. 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.

Shipping details