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EL84 - JJ Electronics

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Item ID: 004855
Starting at: $9.99
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The JJ EL84 is an output pentode for use in guitar and Hi-Fi amplifiers. It has a noval base and maximum plate power of 12W.

Tube measurements are as follows:

  • Height: 2.75” (without pins)*
  • Diameter: 0.84”*

*Note: Due to the method of production in regards to the glass, measurements may vary slightly.

Apex Tube Matching
Matched versions of this tube use Apex Matching
OptionOur Part NumberUPC/EAN
Apex Matched PairT-EL84-JJ-MP609722123105
Apex Matched QuadT-EL84-JJ-MQ609722123112

RoHS Compliant

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Specifications, Files, and Documents

Product Reviews

5.00 out of 5 based on 15 reviews



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

A fine tube for a reasonable price.

Douglas Hatlelid - April 13th, 2016

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

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

JLoud - January 24th, 2016

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

I got a matched pair of these tubes and they actually sound better to me than some more expensive brands. The glass envelope seems a bit thicker, too. It seems to help with heat dissipation which can be an issue with this tube. With my Fluke infrared tester, the previous tubes (a different brand) measured near 200 C which is about the limit for this tube. The JJ tube measures around 160 to 175 C. I will buy these again.

tony montana - June 17th, 2015

excellent recommanded

Anonymous - June 16th, 2015

The Tubes arrived quickly and safe. The amp now sound great!

Mike Wells - June 16th, 2015

Awesome tubes, perfectly matched and great low end.

David A. - June 13th, 2015

I can't say much more about JJ than their performance reliability can. You may be able to spend more money for a different tone, but if you want to invest in predictable tone go JJ/Tesla!

They are inexpensive, realiable, and more importantly, you can find them on the road. A tube swap during the tour will yield the same sound you've already achieved using JJ with a new set of tubes from JJ.

Allen Gordon - May 16th, 2015


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