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
32 reviews
I understand why JJs are so commonly used.
by a seething spelunker
I really like these. They are pretty balanced and they reek of gain. There is so much fuzz that hair is coming out of my amps - love it. Also, they are cheap as dirt. I have a problem understanding negative reviews, as you have to mix and match to get what you want. You cant just buy 3, say, JJ ECC83-S and expect to get the tone you are after. You have to know what you want, and it helps to research and ask around. And you will most likely end up experimenting with different tubes. Just don't complain about not getting what you want by just buying 3 preamp tubes of the same kind. That sound you are getting with 3 of these will certainly produce the sound someone wants. It is your job to find out if you want that sound; not the tubes magically adapting to your wishes.
Nothing like a 5751
by Neil
Wow, I have a Behringer Tube Monster pedal- and it came with one of these ECC 83-S tubes- it had very low output, and was fizzy sounding. I replaced with a NOS GE 5751 black triple mica, and that made an immense improvement. I got more volume, yet less fizzy overdrive. (I have 5751's in nearly every tube application I have to great success). I don't know about other applications, but for me, this is just a cheap, low output pedal with not such great tone. -NS, 40 years experience
to muddy
by Kevin
I never wanted to buy JJ tubes but I gave them a try. Wanted to replace some Tung-Sols in my Powerball II. I don't like them at all, maybe they suit another amp better.
For Hi Fi
by Patrick Ryan
Excellent replacement for high end audio preamp. Replaced Electro Harmonix with them. Much better clarity and brilliance.
Too dark
by Lonnie
Replaced the Sovtek preamp tubes in my Peavey Classic 30 with JJ ECC83S tubes. Harmonics are gone and sounds like I put a blanket over the amp. Ended up with Electro Harmonix tubes and they brought the amp to life.