JJ Electronics

You are here

Vacuum Tube - ECC803/12AX7, JJ Electronics, Long Plate

Pictured: Regular
Pictured: Gold
Pictured: Regular
Pictured: Gold
Click to zoom in
Vacuum Tube - ECC803/12AX7, JJ Electronics, Long Plate image 1Vacuum Tube - ECC803/12AX7, JJ Electronics, Long Plate image 2Vacuum Tube - ECC803/12AX7, JJ Electronics, Long Plate image 3Vacuum Tube - ECC803/12AX7, JJ Electronics, Long Plate image 4
Customer Images:
No Images yet! Submit a product image below!
Item ID: 004833
Starting at: $13.95
In stock
View Specifications, Files, and Documents

The JJ Electronic ECC803 is a high performance, long plate version of the ECC83 / 12AX7. Like all JJ preamp tubes, these are built into a rugged package using the spiral filament and robust plate structure resulting in low microphonics and high reliability. The long plate version of this tube differs from the standard version with its stronger and fuller sound which offers a wider and more balanced frequency response. This tube ranges from deep rich lows to pristine highs covering a spectrum of harmonically dynamic mids along the way. This tube is an excellent choice for any guitar amp and perfect for studio and Hi-Fi equipment as well. This tube will work in any 12AX7 or ECC83 position.

Pin TypeOur Part NumberUPC/EAN

RoHS Compliant

View Product Measurements

My Project Lists

You must be logged in to add items to a project list.

Specifications, Files, and Documents

Product Reviews

4.88 out of 5 based on 8 reviews

This is an all around great tube by JJ. I use it in v2 also great in the phase inverter position. It's also very quiet for as large as the plates are and adds improved gain in preamp gain stages.

NickS - May 16th, 2018

Very round Warren Haynes tone. No need for NOS with these tubes available.

loopy - December 13th, 2015

Tube is great! The difference is unreal. I will be buying more of these.

lockingnut - October 19th, 2015

If you have a bright and clean amp that is lacking in overtones.
This tube will liquify your tones and add depth.
Adds punch, warmth and sweetens shrill highs.
Makes reissue blackface amps sound more vintage in a wonderful way.

reverb hound - September 22nd, 2015

Love these - perfect for keeping the gain under control with a slightly softer voice

davidiesel&Dust - July 28th, 2015

I am using this in V2 ---So V1 = EH 12Ay7 ----V2+ JJECC803 --- V3 Tad 12AX7 --- Power Tubes JJ EL84

In a Bill M Modded Blues Jr 3 Humboldt - Cannabis Rex Speaker and Cap upgrades as well as tone stack.

Wonderful... Far more gain which I love as I play very clean - Suits my style I recommend all the tubes above

Anonymous - December 22nd, 2014

I replaced an old short plate 12AX7 and just wanted to see how this guy sounded. To my ears, it definitely appears to have higher gain characteristics, as described. I like it a lot in my old Univox 2x12 running EL84s, but not as much in my old Sano amp that shines most with clean reverb tones. Consider your application before hand, sometimes lower gain is more appropriate.

DM - August 17th, 2014

This tube has replaced my favorite NOS Mullard in V1 of my Marshall. Good stuff.

Bryan Morris - August 2nd, 2014

Questions and Answers

Click each question to see its answers.
Have a question of your own? Ask us here!