Telefunken EL84 Valve Tube

^# 21

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$47.00 to $99.00

5.0 (1)

1 Review

0 wishlisted

1 saved

Page last updated Jul 04, 2026

Pricing and availability

We compare 600+ stores and found this item at 5 stores. Prices updated June 17, 2026.

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$99.00

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$99.00

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5.0 (8)

$99.00

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$47.00

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Price History

Based on price data from 4 merchants for "Telefunken EL84 Valve Tube". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Get ready to transform your sound with the Telefunken EL84 Valve Tube. Whether you're playing in a cozy home studio or performing on a bustling stage, this compact yet powerful tube is a game-changer. Revered for its distinct "British" tone, it delivers a beautifully detailed chime and clear articulation that sets your music apart from the rest. Perfect for both guitar amplifiers and hi-fi audio equipment, this tube can handle up to 17 watts of output power, making it a versatile choice for any musician or audio enthusiast.

Designed as a thermionic valve, the EL84 is ideal for replacing any EL84/6BQ5 tube, bringing new life to your beloved gear. Each tube is meticulously tested for critical performance parameters like transconductance, gain, noise, and microphonics, ensuring you get the best sound possible. When pushed to the limit, its distinct overdriven sound produces a delightful, articulate chime that's hard to match. With rigorous hand-selection and an extended burn-in period, these tubes promise durability and reliability, so you can focus on your music and not your equipment.

Key Features:

Ideal replacement for any EL84/6BQ5 tube
Thermionic valve of the power pentode type
Suitable for guitar amplifiers and hi-fi equipment
Delivers up to 17W while remaining compact
Produces a distinctive chiming sound when overdriven
Each tube is meticulously measured for transconductance, gain, noise, and microphonics
Hand-selected, rigorously tested, and subjected to an extended burn-in period for stability

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Telefunken EL84 Valve Tube.

Features and functionality

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The Telefunken Opus 6 has a phono input labeled for preamp use, implying it requires a separate preamp for proper functionality with turntables.
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The radio's internal speaker system can be bypassed when an external speaker is connected, maintaining the pristine condition of its original speakers.
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Balanced triodes, high gain, and matching options are generally unnecessary for a stereo headphone amp, which typically uses small, single-ended amps for each channel.
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Mods and upgrades

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Adding a Bluetooth receiver to the tape input significantly enhances the radio's utility, outperforming modern Bluetooth speakers in sound richness.
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Tung Sol and Gold Lion tubes are considered cost-effective alternatives to NOS Mullard and Telefunken for the Quicksilver headphone amplifier, offering adequate performance without the high expense.
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Setup and maintenance

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Restoring this radio involves replacing electrolytic capacitors, which have a finite lifespan and could leak or drift from original specifications over time.
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It's suggested to opt for low noise and microphonics options when purchasing tubes for headphone amps to minimize unwanted noise interference.
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Use cases and applications

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The unit is ideal for home studio integration, providing a rich, tube-driven audio experience for music streaming and monitoring.
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The Quicksilver headphone amp's performance with harder-to-drive headphones like old school HE 500 and ZMF Atriums shows no noise issues, suggesting compatibility with high-impedance headphones.
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User experience

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Despite being a vintage piece, the radio offers a surprisingly high-quality audio experience, outperforming a modern Marshall Bluetooth speaker in sound richness.
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Users report intermittent crinkling static in certain IEMs with the Quicksilver amp, which may be related to an impedance mismatch rather than faulty tubes.
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Other

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The radio includes a play/record function that outputs whatever source is selected, either radio or phono, providing flexibility in audio routing.
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Comparisons

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JJ tubes are highlighted as a reliable and less expensive backup option compared to premium NOS brands, with consistent performance noted by multiple users.
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5.0 out of 5

Based on 1 Review and 1 Rating

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beatles1969

6812

over 9 years ago

[deleted]

jimmarchi1

41029

9 years ago over 9 years ago

is it an old one? I have burnt down my fair share of the old ones in my voxes, I can't invest in them anymore, I still load up with mallard, amperex and GE pres in some of my amps though, especially the matchless where a mullard mesh plate ef86 is night and day compared to anything else in that circuit, even the coveted tele 806 that for me is too hifi for a guitar amp (I should sell mine, it tests new).... you know the old tungsrams 84s sound super similar to the teles and cost way less for a matched set

beatles1969

6812

9 years ago over 9 years ago

I am pretty sure that my tube was made in 1957. I think the name makes the price (like Apple).

jimmarchi1

41029

9 years ago over 9 years ago

that's fairly old for telefunken tubes these days... nice find, what do you have it in? when it fades (84s don't last as long as the big bottle power tubes), take my advice and look at the tungsrams, very similar, cheaper by 75% though the supply IS drying up on those

beatles1969

6812

9 years ago over 9 years ago

First this tube was in my old Operette 8 tube radio. As a tube of one of my friends Fender Blues Junior (I do not really like this amplifier) burned through I offered him my old Telefunken. But only until he has a new one. Then the tube wanders back into the tube radio (my favourite guitar amp).