JJ E83CC / 12AX7 Preamp Vacuum Tube
The new JJ E83CC (12AX7) vacuum tube is here! It is modeled after the legendary Tesla/Teslovak E83CC preamp tube using a frame grid internally.
From our review: "The tube sounds very good and it’s extremely quiet. Spiral filament winding does seem to have an effect. The noise floor is better than the standard ECC83S. Frequency response is excellent. In the lower register of guitar it produces a nice thump. Great for palm muting, drop tunings and percussive rhythm. Mids are upfront but not honkey and there’s no issue with highs. When I slammed the front end of my amp with a boost pedal the overdrive was quite musical and focused. I didn’t get heavy mush. I also ran a pair of these tubes in my phono stage with good results. I’d have no problem recommending for use in studio rack gear or other audio applications."
Other JJ Electronics tubes 
12AX7 TypesAdditional Information and Downloads
Reviews:
12AX7 Tube Review
Tube Matching Information:
Matched Sections Service
Downloads:
JJ E83CC / 12AX7 Datasheet (PDF)
Download Adobe Acrobat PDF reader
Warranty Information and Return Policy
Warranty Period: 3 monthsAll 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
13 reviews
JJ E83CC / 12AX7 | I GUESS I GOT A BAD ONE...
by Kym -
I placed this order in Nov. of 2024. I have had the tube in V3 of a JCM for quite a while with no issues and was quite pleased with my tube selection. I recently tried every type of 12AX7 I could get my hands on in V1 of a Soldano Astroverb, and this JJ E83CC just gave off so much self noise... hiss and crackle, that I thought something was very wrong. I then tried the JJ E83CC in V1 of the JCM... with the same result.. hiss and crackle. I put the JJ E83CC back into the V3 position, and it is working great.
I expected quite a bit more from this tube. It was supposed to be quiet due to the old school construction. I Guess I got a bad one.
JJ E83CC / 12AX7 | Very good tube but pricey
by André -
Surprisingly good sounding 12AX7 tube and very quiet
Recommended in all position for the preamp section
It will reduces all the unwanted noises.
Thanks tubestore for fast shipping
JJ E83CC / 12AX7 | A good general replacement tube for almost all applications.
by Satchmoeddie
This tube retains the old east block Warsaw Pact Tesla & Tungsram short plate design, and either one was a pretty decent ECC83 by any standard. (JJ used to be Tesla tubes, but it is no longer a part of, or affiliated with Telsa or any of Tesla's other factories that may still be making tubes) These don't get microphonic as fast as the long plate tubes and the JJs hold up much better in cathode follower circuits compared to the Russian made New Sensor tubes. The JJ tubes are not pretending or claiming to be anything that they are not either. Unless there is a bad batch of glass, these are just a generic, can't really go wrong with it 12AX7. It's a good tube for reliability.
JJ E83CC / 12AX7 |Outstanding tube!
by Mitchell
Outstanding tube. Best 12AX7 type tube I've heard.
Originally designed as an audio specific dual triode with low noise and microphonics. It's a clone of the legendary "Telefunken ECC803S", which purists hail as the best ever 12AX7.
It's equivalent to the 6N23P, 6DJ8 & 6922 designations. It's a great choice for hi-fi amplifiers, guitar amps and studio equipment.
The JJ-E83CC breaks-up with a satisfying warmth with plenty of articulation that's less harsh and more dynamic than a JJ ECC83S.
It's a little darker than standard JJ ECC83S valves and has a smooth overdrive crunch that blends very well with the quick breakup of a JJ EL844 providing a lot of overdrive when driven hard in my single-ended Class A amp.
Benefits of the more rugged frame grid construction are: Higher gain, higher transconductance (Gm), lower input capacity, higher limiting frequency, almost no microphonics, better grid & plate current division, significantly lower hissing noise and longer service life.
JJ E83CC / 12AX7 | Best new production 12ax7
by Mendel
The best new production small signal tube I have tried. Finally back in stock! I have most of the best vintage 12ax7s and these JJ-E83CC are fully competitive, you might prefer certain vintage tubes, but you might also like these better. Not cheap at $30 US, but cheaper than vintage Teles or Amperex.