JJ ECC83S / 12AX7 Preamp Vacuum Tube
The JJ ECC83S / 12AX7 preamp tube is a fantastic performer at a very affordable price.
From our review of this tube: "The compact plate structure does nothing to dampen their sound or dynamic response. I find them to be well balanced. While not as harmonically rich as others I tested, they do provide high gain without the usual noise and microphonic problems you would expect. This is great sound for your dollar..."
JJ Electronic is distinguished worldwide for manufacturing high quality vacuum tubes and capacitors. They have been producing vacuum tubes for over 30 years in the Slovak Republic.
Other JJ Electronics tubes
12AX7 TypesAdditional Information and Downloads
Reviews:
12AX7 Tube Review
Tube Matching Information:
Matched Sections Service
Downloads:
JJ ECC83-S / 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
33 reviews
Great Tube in Phase Inverter socket
by M'Ike
I've used the Tesla - now JJ ECC83S - in my Peavey Classic 30 V3 socket going on 15 years now. After buying a VHT Special 6 Ultra, I put this tube in right before the power tube and it sounds wonderful. For my personal taste, I love this tube. Focused, even and durable. If they keep making it like this I'll keep buying it and putting it right before the output section. (I tried it in the input sections (V1) and found it kinda flat and grainy to my ears.) Incidentally, I've bought all my JJs through thetubestore, happy with the service and quality. Thanks!
Bassman RI Ltd
by Gator
I put these in v1 and v3 of my IR Bassman Ltd and it made a very nice difference. Much warmer sound and made humbuckers so much better. Added complexity when coupled with the JJ 6L6GC tubes in the power amp section.
JJ ECC83-s
by M-it East Bay Musician
I put this tube in several places in my 50 watt Peavey Valve King with tung-sol's and found it to be best in the phase inverter. Tight bottom, strong mids, smoothed out top, low noise, is a great combo for that last step in the preamp section.
Good all-around tube
by flyswatter
I used the JJ 12AX7 tubes along with JJ 6L6GC power tubes to retube my old SF Super Reverb in place of the mis-match of cranky old tubes that have been in it since I bought it.
The JJs added cleanliness and reduced the noise floor of the amp to almost zero -- impressive for a 34 year old amp.
I lost nothing in the way of tone by going with JJs. The fact that they are inexpensive and easy to find / replace are pluses.
If you're no longer able to keep old / NOS tubes running in your old Silverface, the JJ's are in my opinion a more than adequate new production replacement.
warm yet subtle :)
by Mr Z
I resently got hold of a Presonus Tube Pre v2, removed the stock Chinese tube and haven't looked back! My bass guitar sounds much fuller without to much saturation. The colouration seems subtle in some respects yet still strong and distinct! Defintly worth a punt!