JJ ECC83-S / 12AX7 Preamp Vacuum Tube

32 Reviews
SKU: JJ-ECC83S

Availability: Usually ships within 24 hours.

USD $‎17.95
Each
QuantityPrice
1 – 4USD $‎17.95
5 – 99USD $‎16.95

The JJ ECC83-S / 12AX7 vacuum 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 audio tubes and capacitors. They have been producing vacuum tubes for over 30 years in the Slovak Republic.



Other JJ Electronics tubes12AX7 Types

Additional 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 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.

Good saturation, but noisy.

by

They add more saturation to my Plexi clone,which I like, but they are noisy when the Master is turned up.

Don't let the low price fool ya

by

This is the pre-amp tube that came with a '58 Champ kit that I built and I figured it was included with the kit because it is economical. I was so very wrong. After testing a myriad of tube combinations I have found that for that amp, this little inexpensive pre-amp is head and shoulders over anything else. Different brand tubes sound different in different amps. JJ long plate gold pin sucks in this amp but is tops for V1 in a much modded BJIII I have. Genalex Gold Lion golds are great phase inverter tubes but suck in the Champ. After one spends a small fortune on tubes they learn the secret to the magic mojo for each different amp. Electronically speaking, capacitance in the filter stage have a huge effect on the performance, tone, etc. of pre-amp tubes and coupling caps effect the output tubes. Tubes are just one part of the recipe.

Worth Having in your Collection

by

These are a good experimental tube. You won't know if you like them until you try them. Generally they are nice in the V1 position, but too fizzy in second and third gain stages. I also prefer a more expensive 3D sounding tube in the Phase inverter position than these. I put these in all positions in my 20 watt Krank Rev Jr., and smiled. That's the sound the amp was designed for. Kind of a dark scooped mids heavy metal over the top thing. You will need to trim off a bit of high end for recording to shape off the fizz, but great for chugging with heavy metal humbuckers and compression pedal. They didn't seem any more noisy than a 12AX7-A, but they have they're own character. To sum up, these are not a generic tone.

Use it properly

by

This extra short plate 12AX7 works better if you use it in the V1 ... My Friedman PT-20 came with this one in V1 and normal short plates in V2 and V3 ... I replaced the ones in V1 and V2 with 2 EH and kept this extra short JJ in V1 ... now I'm wondering if other manufacturers make similar extra short 12AX7s?

Depends on what you're looking for....

by

I put a pair of these into my Vox AC4C1-12 and noticed right away that I lost about 30 percent of my preamp overdrive gain and some of the detail in the upper frequencies. They did not sound bad, but they altered the character of my amp in a way that I did not find useful. Nevertheless, I will give them a decent rating because they did in fact sound pretty good, just not the sound I was looking for.