View cart Checkout

Vacuum Tube - EL84, JJ Electronics

Click to zoom in

Customer Images:


SKU:	T-EL84-JJ
Item ID:	004855


List Price:	$10.25
Starting at:	$9^.23
You Save:	$1.02 (10%)

In stock

View Specifications, Files, and Documents

Printer-friendly page

Brand

JJ Electronics

Type

Power Apex Matched

The JJ Electronic EL84 is a solidly built EL84 / 6BQ5 with excellent tonal qualities. JJ’s rugged construction of this tube offers high reliability without any compromise to the sound. This tube has solid lows with warm bright mids and shimmery highs. When saturated the harmonics are rich and dynamic. The JJ EL84 nails the classic sound of this tube. This tube can replace any EL84 or 6BQ5 tube.

Matched versions of this tube use Apex Matching


Option	Our Part Number	UPC/EAN
Apex Matched Pair	T-EL84-JJ-MP	609722123105
Apex Matched Quad	T-EL84-JJ-MQ	609722123112
Single	T-EL84-JJ	609722123099

RoHS Compliant

View Product Measurements

My Project Lists

Specifications, Files, and Documents

Specification Sheet (191.81 KB) t-el84-jj_specificationsheet.pdf

Product Measurements (click to expand)


Option	SKU	Type	Value
Apex Matched Pair	T-EL84-JJ-MP	Packaging Dimensions	1 in. x 2.1 in. x 3.8 in.
Apex Matched Pair	T-EL84-JJ-MP	Weight	0.08 lbs.
Apex Matched Quad	T-EL84-JJ-MQ	Packaging Dimensions	2.1 in. x 2.1 in. x 3.8 in.
Apex Matched Quad	T-EL84-JJ-MQ	Weight	0.16 lbs.
Single	T-EL84-JJ	Packaging Dimensions	1 in. x 1 in. x 3.6 in.
Single	T-EL84-JJ	Weight	0.04 lbs.

Add a review

Product Reviews

5.00 out of 5 based on 20 reviews

Pages

I needed some matched sets of EL84 tubes to install in two Crate Vintage Club combo amps equipped with non- adjustable fixed bias. JJ EL84 tubes were the only EL84 tubes I found that were perfectly biased to these Crate amps. The JJ tubes also sounded very good.

ohm-my - December 30th, 2018

report this

ohm-my - December 30th, 2018

report this

Long lasting reliable tubes ! Best fit for a Classic 30.

Anonymous - December 11th, 2018

report this

Works fine. Cleaned up my noisy amplifier.

Carmen Marranco - September 10th, 2018

report this

These tubes arrived fast, were matched, and sound great!

Stu - April 11th, 2018

report this

I designed the JJ-EL84 (class A configuration) into my stereo and the sound is amazing. A dependable tube with crisp highs and beautiful lows.

Garg - September 26th, 2017

report this

A fine tube for a reasonable price.

Douglas Hatlelid - April 13th, 2016

report this

Beautiful sounding tubes. Using two of these in a parallel SE amp I built, and they sound great, like all other JJ tubes I've used so far. I much prefer these over so called NOS tubes, a much better value!

dazerp - February 29th, 2016

report this

I like them. They seem to breathe new life into an old Blues Jr.

JLoud - January 24th, 2016

report this

I installed these in my push-pull guitar amp and monitored the cathode current as I adjusted the quiescent bias current. These two tube were perfectly balanced and tracked each other as I made adjustments. APEX Matching seems to work as advertised. They sound great too.

Stan C - December 15th, 2015

report this

Questions and Answers

Click each question to see its answers.

How do I choose a rating. I need between a 5-7 for Dr. Z. 1 answers

Asked by Anonymous on October 24th, 2015.

1 person subscribed to this question.

Answers (1)

JustinG

Staff Member

Top Contributor

October 27th, 2015

When placing an order you would specify whether you want low,medium, or high plate current/trans conductance numbers in your order comments. The lower the number the earlier a power tube will break up and the higher the number the more clean headroom you'll get before power tube breakup. We do not match our JJ tubes on a 1-10 rating system.

I bought the power matched pair and noticed that one tubes filaments glow brighter than the other, is this normal? 1 answers

Asked by Anonymous on October 14th, 2016.

1 person subscribed to this question.

Answers (1)

Matt H.

October 14th, 2016

A blue glow on the surface of the glass, mica, or metal is fine. A blue or violet cloud within the tube structure is bad. An orange glow from the filament or cathode in the middle of the tube is normal and can vary from very bright to very dim depending on how it is covered from view by the surrounding structures. A red or orange glow on the surface of the plate is bad and is referred to as "red-plating." This is caused by setting the bias of the tube too hot. If the tube was bad you would hear it.

Do this work in a fender hot rod deluxe iii? 1 answers

Asked by Anonymous on May 24th, 2017.

1 person subscribed to this question.

Answers (1)

Matt H.

May 24th, 2017

If you want to use EL84's with your amp you will need to purchase the "YJS" or "YJShort" Yellow Jackets. These are pin converters that allow you to safely use EL84's in your amp.

Do you sell tubes for mesa boogies?1 answers

Asked by Anonymous on February 2nd, 2018.

1 person subscribed to this question.

Answers (1)

Matt H.

February 2nd, 2018

Towards the end of the checkout process there will be a notes section where you will want to state, "please match as middle numbers." This range is compatible with all Mesa amps.

Do these work for an epiphone valve Jr 5 watt head? I have had two burn up when i turned on my amp.1 answers

Asked by Anonymous on March 13th, 2018.

1 person subscribed to this question.

Answers (1)

Matt H.

March 13th, 2018

The Epiphone valve Jr calls for one EL84 and one 12AX7. In fact, we carry a tube set for your amp. Do a search for SET-EPIPHONE-002.

Will this work on Blues jr? 1 answers

Asked by Anonymous on May 31st, 2018.

1 person subscribed to this question.

Answers (1)

Matt H.

May 31st, 2018

The Blues Junior comes stock with a pair of EL84's and these would be an excellent choice for your amp.

In the "Add This Item to a Project" dialog, "Single" is not one of the choices allowed under "Options", though it is allowed in the "Add to Cart" dialog. This looks to be true for all power tubes. Please have your web developer fix the "Add This Item to a Project" dialog. Thank you.1 answers

Asked by kramerdspsynth@yahoo.com on July 8th, 2018.

1 person subscribed to this question.

Answers (1)

BradWbr

Staff Member

July 9th, 2018

I will notify our IT department of this issue. Thank you for bringing this to our attention.

Are these T-EL84-JJ-mp already burned in ? 1 answers

Asked by Anonymous on July 27th, 2018.

1 person subscribed to this question.

Answers (1)

CurtisG

Staff Member

July 27th, 2018

These are not burned in. Unfortunately, we do not offer a burned in version of these tubes at this time.

Can these tubes work in a record player stereo amp From 1964? The one I pulled out was a 6BQ5 silvertone.1 answers

Asked by Anonymous on August 28th, 2018.

1 person subscribed to this question.

Answers (1)

BradWbr

Staff Member

August 28th, 2018

Yes, the 6BQ5 is the American name for these tubes. As they were commonly used in European amps, the European name EL84 has become the more commonly used term.

Can you elaborate on "burned in". What does this really mean? Is this 10 hours, 50 hours, 100 hours? Should burning in be done at high volume? It seems that there is so much nebulous terminology in this world of guitars and amplifiers. Frankly, I am a little confused.1 answers

Asked by Anonymous on November 8th, 2018.

1 person subscribed to this question.

Answers (1)

BradWbr

Staff Member

November 9th, 2018

For more information on the Apex Burn In process, please visit the Apex tube matching website: https://www.apexmatching.com/apex-burn