Mullard RI EL34

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$23.99 to $39.95

4.5 (2)

1 Review

All time low price

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Page last updated Jun 14, 2026

Pricing and availability

We compare 600+ stores and found this item at 3 stores. Prices updated June 3, 2026.

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3.0 (2)

$40.68 $39.20 $1.48 · All time low

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5.0 (1)

$23.99

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5.0 (3)

$39.95

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Price History

Based on price data from 3 merchants for "Mullard RI EL34". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Step back into the golden age of rock with the Mullard RI EL34 power tube, a revered icon known for its transformative impact on guitar amplifier heads. This meticulously crafted tube revives the legendary British tone that defined iconic tracks of the '60s and '70s, offering musicians a chance to experience authentic vintage sound in modern settings. Engineered to precise vintage specifications, the Mullard RI EL34 is perfect for those who crave that warm overdrive and robust harmonics characteristic of classic tube amps.

Whether you're playing a small gig or recording in the studio, the Mullard RI EL34 excels in delivering consistent tonal clarity and reliability. Its high-quality construction ensures that you won't have to compromise on sound or durability, making it a trusted choice for both professional musicians and passionate hobbyists. This power tube is an essential component for anyone looking to elevate their amp's performance, bringing back the nuanced dynamics and expressive playability that only the best tubes can provide.

Key Features:

Vintage-spec EL34 tube, ideal for replicating classic British amp tones
High-quality production ensures consistent operation and longevity
Perfect for musicians seeking authentic '60s and '70s rock sounds
Renowned for delivering warm overdrive and robust harmonics

Product specs

Type	Power
Model	EL34
Quantity	Single

FAQs

What is the primary use of the Mullard RI EL34 tube in guitar amplifiers?: The Mullard RI EL34 tube is primarily used as a power tube in guitar amplifier heads, known for delivering classic British rock tones with rich harmonics and a warm, dynamic response.
How does the Mullard RI EL34 tube affect the sound of a guitar amplifier?: The Mullard RI EL34 tube enhances the amplifier's sound with a full-bodied midrange, smooth highs, and tight lows, making it ideal for achieving vintage rock and blues tones.
Is the Mullard RI EL34 tube suitable for high-gain amplifiers?: Yes, the Mullard RI EL34 tube is suitable for high-gain amplifiers, providing a robust and articulate sound that maintains clarity even at higher distortion levels.
Can the Mullard RI EL34 tube be used in any amplifier that requires EL34 tubes?: Yes, the Mullard RI EL34 tube is designed to be compatible with any amplifier that requires EL34 power tubes, offering a reliable replacement option.
What are the benefits of using a Mullard RI EL34 tube in a guitar amplifier?: Using a Mullard RI EL34 tube in a guitar amplifier provides enhanced tonal richness, improved dynamic range, and increased reliability, making it a popular choice for musicians seeking authentic vintage sound.

Videos

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Upscale Audio High Fidelity

Upscale Audio's Kevin Deal reviews the Mullard re-issue EL34

Upscale Audio High Fidelity

Mullard EL34 Tube

www.thetubestore.com

Reviews

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PROS

Provides a full, rich clean sound and lethal ultra gains
Warmer and less sterile sound compared to other brands
Excellent for heavy fusion, blues, and metal sounds
Enhances sound quality in amps like Marshall DSL100 and Bogner 101b
Handles high plate voltages effectively

CONS

Some units may have issues with biasing and red plating
Quality inconsistency reported, leading to potential reliability concerns

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Mullard RI EL34.

User experience

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Owners report varying reliability with Mullard RI EL34 tubes; one lasted only 3 months, highlighting potential consistency issues despite careful amp maintenance.
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JJ tubes have mixed feedback; one user had a tube last 7 years after replacement, while another faced three failures in a year with the same brand.
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Mullard valves are noted for smoother tones but may be microphonic in high-gain circuits, performing well in Vox and Fender amps.
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One user experienced loss of gain and fluctuating volume, indicating a need for tube replacement and potential biasing issues.
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There's skepticism about the necessity of matched tube sets, with some owners not seeing a significant difference between matched and unmatched pairs.
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Comparisons

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Users with Marshall amps report no issues with Mullard tubes, suggesting possible compatibility advantages over JJ tubes in certain amp models.
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JJ tubes are described as warmer and brighter, preferred in JVM amps, while Mullards enhance British-voiced amps with high-mid aggression.
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Setup and maintenance

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It's suggested that tube failures, like red plating, might result from excess voltage, indicating the need for regular amp diagnostics by a professional.
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Some owners recommend using a multimeter for biasing tubes and suggest having a tech demonstrate the process for future reference.
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It's been suggested that EL34 power tubes wear faster and typically need replacement more frequently than preamp tubes.
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Use cases and applications

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Mullard tubes are recommended for enhancing "Britishness" in amps, bringing forward high-mid characteristics, especially in Hughes and Kettner amps.
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Mods and upgrades

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Tung Sol reissue tubes are recommended for a balanced sound, offering a reasonable alternative to pricier options like NOS Telefunken.
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4.5 out of 5

Based on 1 Review and 2 Ratings

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chris_nashvillerocke...

325

over 10 years ago

Mullard RI EL34

Use this tube in my Bogner 101b and Marshall type amps. very musical tube, nice top end, midds and bottom end. Holds high plate voltages excellent.

Artist usage

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Masaru Teramae

Guitarist, Bassist

Demetori

Verified via Twitter

In a tweet, Masaru Teramae mentions purchasing a Mullard RI EL34 tube for use in his Triamp guitar amplifier head, highlighting his first experience with the brand.