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

Pictured: Regular
Pictured: Regular
Pictured: Gold
Pictured: Gold
Pictured: Regular
Pictured: Regular
Pictured: Gold
Pictured: Gold
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SKU: T-ECC803-JJ-X
Item ID: 004833
Starting at: $13.95
In stock
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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.

Part Numbers
Pin TypeOur Part NumberUPC/EAN
GoldT-ECC803-GLD-JJ609722123556
RegularT-ECC803-S-JJ609722126533

RoHS Compliant

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Specifications, Files, and Documents

Product Reviews

4.9
4.90 out of 5 based on 10 reviews
5
5 out of 5

Great sounding tube from a reliable electronics manufacturer. Does well in v1 and pi or really any position.

- October 10th, 2019
5
5 out of 5

Perfect pre-amp tubes strongly recommended

- September 14th, 2019
5
5 out of 5

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.

- May 16th, 2018
5
5 out of 5

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

- December 13th, 2015
5
5 out of 5

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

- October 19th, 2015
5
5 out of 5

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.

- September 22nd, 2015
4
4 out of 5

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

- July 28th, 2015
5
5 out of 5

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

- December 22nd, 2014
5
5 out of 5

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.

- August 17th, 2014
5
5 out of 5

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

- August 2nd, 2014

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