Mullard EL84

21 Reviews

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USD $‎33.95
From our review - "Blues guys will go crazy for the reissue Mullard EL84 tube. It has the least clean headroom and can be pushed into distortion with aggressive playing. When pushed into distortion the Mullard EL84 tube has a softer, creamier overdrive that is more musical than other EL84 tubes and is the tube to pick if you want dirt."

The Mullard name and trademark have been acquired by the New Sensor Corporation. This new production Mullard EL84 tube is manufactured at their Xpo-Pul factory (also known as Reflektor) in Saratov, Russia. New Sensor is an American corporation and since taking ownership of this factory has been steadily improving the quality of current production tubes.

Note: These tubes have a slightly larger diameter than other EL84 tubes so they can not be installed into some '90's era Marshall DSL201 or DSL401 amplifiers, some '90's era reissue Vox AC15 amps, and Bad Cat amps.

Other Mullard tubesEL84 Tube Types

Additional Information and Downloads

EL84 Tube Review

Tube Matching Information:
Power Tube Matching FAQ
Perfect Pair System

Warranty Information and Return Policy

Warranty Period: 3 months

All our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)

If you receive a tube that does not perform to the manufacturer's specifications, please do the following:

- contact us to get a return authorization
- return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.

Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.

We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.

These guidelines may be updated without notice.

Ratings & Reviews

21 reviews

Warm Dr Z Maz 18 NR


I purchased a matched pair of these Mullard EL84's for my Maz 18 NR. Instant warmth and creamy smooth break-up. Definite improvement (IMO) over the stock JJ's that were in it when purchased. Perfect match with my humbucker guitar

mullard el 84


they're bigger than the original marshall el84's. have to modify carrier surround or housing in order to even install. hope they're worth it. why bigger?

Response from As stated in the product desciption above, yes, these tubes are made with a slightly wider diameter bottle. Why? We do not know.

Tube swap


Purchased a Fender Blues JR III and played it for awhile with the stock tubes which Fender claims to be GrooveTubes. A nice sounding amp right out of the box but I knew I had to modify it. I customize about everything I own! First was installation of "Complete" mod kit from Fromell Electronics", then re-tube, and lastly swapped out the Eminence speaker with a Celestion Alnico Blue. When I pulled the stock output tubes I noticed that contrary to Fender's claim about the attention paid to carefully matching their tubes and being number and color coded, they had installed at the factory 1 GT and 1 JJ. Only the GT had been number coded and no color code on either tube! Thanks Fender. Replaced these with a matched set of Mullards from TTS. When I first fired up the amp there was only a slight improvement of tones but an alnico blue requires 20-30 playing hours to break in and tubes need about 10-20 hours. After about a week this amp was producing sounds that I thought only came from $3000.00+ boutique amps. I used to really love the sounds that came out of my Kustom Coupe '72 but now I don't even use the Kustom anymore! Also, learned a lot about tubes from TTS website. Fast shipping from TTS. Also recieved phone call asking questions about matching triodes on the pre-amp tubes (JJ Golds). Great company.

Great for the TubeMeister18


I replaced the stock tubes in my TubeMeister 18 with a pair of these Mullard EL84 (and some EH 12AX7 for the preamp) and the already good-sounding TM18 now sounds fantastic. Rich but smooth texture. Easy to get saxophone-like sounds from the lower registers of the guitar, which is a sound I've been seeking for years. I use my TM18 as a signal processor only and can't vouch for these performing as well when driving a speaker - but they probably do.

Classic Rock Sound


I installed a pair of Mullard EL84's in my Marshall 1974x. The rich, creamy overdrive nails the early classic rock sound. Great tone!