You are here
Vacuum Tube - ECC803 / 12AX7, JJ Electronics, Long Plate
Pictured: Regular
Pictured: Gold
Pictured: Regular
Pictured: Gold
Customer Images:
No Images yet! Submit a product image below!
| SKU: | T-ECC803-JJ-X |
| Item ID: | 004833 |
Starting at: $13.95
In stock
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 Type | Our Part Number | UPC/EAN |
|---|---|---|
| Gold | T-ECC803-GLD-JJ | 609722123556 |
| Regular | T-ECC803-S-JJ | 609722126533 |
RoHS Compliant
My Project Lists
Specifications, Files, and Documents
Specification Sheet 
Questions and Answers
Click each question to see its answers.
Prefer browsing the desktop version?
Click here to return to the desktop version of this site
Click here to return to the desktop version of this site
480.820.5411
Product Reviews
Great sounding tube from a reliable electronics manufacturer. Does well in v1 and pi or really any position.
Perfect pre-amp tubes strongly recommended
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.
Very round Warren Haynes tone. No need for NOS with these tubes available.
Tube is great! The difference is unreal. I will be buying more of these.
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.
Love these - perfect for keeping the gain under control with a slightly softer voice
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
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.
This tube has replaced my favorite NOS Mullard in V1 of my Marshall. Good stuff.