In addition to the great characteristics of regular jj ecc83s, gold pin versions has low microphonics and tight tolerances. Long plate construction, superb for phono stages, hifi, and guitar amps. Specification sheet for gold t12ax7goldjj specification sheet for gold. Jj tube upgrade kit for fender blues junior amps el84 ecc83s. Imported from slovakia, these brand new tubes have been fully tested on the industrys most reliable, voltage controlled testing equipment and exceed all manufacturers specifications. In overdrive, it is smooth and strong with well defined lows and mids. These are not well described you need to buy the mg model of jjs 12ax7 to get the real medium gain preamp tube. Ecc83s 12ax7 jj these tubes provide high gain without the usual noise and microphonic problems you would expect. Rca and sylvania first introduced the 12ax7 to the world in the late 1940s. The jj ecc83s gold pin is a selected version with gold pins of the ecc83 s.
Jj electronics t 12ax7 s jj vacuum tube ecc83 electric guitar power. Ecc83s is 12ax7 high gain preamplifying double triode. Both the jj ecc83s and the ecc803s tubes are available in gold pin versions. It was developed around 1946 by rca engineers in camden, new jersey, under developmental number a4522. The new electro harmonix 12ax7eh is a good choice in marshalls for those who want a more vintage sound or think the jj teslas are too bright. This is one of the best new 12ax7 for any guitar amp. I tube rolled nos mullards, rca, ge, and compared them by ear then by recordings all at the same settings, and my conclusion is that the ge is quite close to the jj but not as open and airey, the mullard is good like the rca, but with my setup the jj is hands. Eirc electronic tubes factory data sheet ecc8312ax7 page 1 of 4 ecc83 is a.
The clean and shiny fender sounds, jj ecc83s the hurts, the beautiful crispy distos that in acute marshall, its not for her either. The jj ecc83 has darker sound characteristics and great for metal and hard rock. The 12ax7 was originally intended as replacement for. Sep 18, 2019 el84 datasheet pdf vacuum tube philips, pentode triode, el84 pdf, el84 pinout, el84 equivalent, el84 data, circuit, el84 schematic, el84 manual. It is also highly recommended for studio preamps and hi. Given the gain, it is generally very low noise and microphonics. The jj ecc83s has become one of the most popular ecc8312ax7 types made today. I think jj product good enough lamps in all but this one, i transferred all my amps, current and past. Jj electronic valve ecc83s is great for bluesrock players, good fat base. So if you want a smooth tone they are great but if you like a little grit in your tone like a dirty keith richards. Jj electronic vacuum tubes, capacitors, amplifiers.
Its rugged design and rich harmonics make this tube an obvious choice for musicians who need a reliable and high quality tube at a reasonable price. The cryo treatment gives better clarity, improved sonics and more detail than a nontreated valve. It has longer plates and the two i have are way too microphonic for v1. This is a specially treated cryogenic and selected balanced version of the jj tesla ecc83s. Double triode electronic tube, ecc83 datasheet, ecc83 pinout, ecc83 equivalent, ecc83 replacement, ecc83 schematic, ecc83 manual. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of current production options to choose from. Tested for shorts, balanced triods, audio test so you get the best of the best. I have never had a jj go bad on me, even a power tube, which i use e34ls. This tube sports a different plate design than found in most 12ax7s. Elektroakustik, in partnership with jj tubes from the carpathian mountains of cadca in slovakia. The s model is a good preamp tube but with normal to high gain. They currently make a range of high quality valves based on some of tesla most famous designs. Double triode components datasheet pdf data sheet free from datasheet data sheet search for integrated circuits ic.
Double triode ugv uav4 3 2 1 0 0 1 2 3 4 5 6 0 50 100 150 200 250 300 350. Now i am switching to digital modeling, so i dont need this anymore. Harmonically rich, with a detailed low end and a warm high end. Reviews heritage of superior industrial craftsmanship continues with the new line of tesla tubes matched triodes and pairs low noise screening does well in guitar amp application with good bite with definition.
To me, his record is without relief or dynamic, flat and dark. Pdf ecc83 12ax7, 12ax7 j ecc83 ecc83s ecc83 jj ecc83 s ecc8312ax7 jj 12ax7 12ax7 triode ecc83. The jj ecc803s is much, much brighter than the ecc83s as rooster mentioned. El84 datasheet pdf vacuum tube philips, pentode triode, el84 pdf, el84 pinout, el84 equivalent, el84 data, circuit, el84 schematic, el84 manual. Jj electronics t 12ax7 s jj vacuum tube ecc83 electric guitar. The jj electronic 12ax7 ecc83 has quickly become a modern classic in preamp tubes. Thanks to its design it also peforms with very low noise and microphonics. The 12ax7 was originally intended as replacement for the 6sl7 family of dualtriode amplifier tubes for. Ecc83s double triode datasheet pdf provided by datasheet pdf search for ecc83s. Jj ecc83s valve equivalent to 12ax7 audio valvetube for guitar amplifiers or hifi. You can find curve plots for 12ax7 chinese, sovtek, and tesla on our tube data page. When you look at them you cant help but think that they must be rugged and good for the musician on the road.
Ecc83 datasheet pdf, ecc83 data sheet, ecc83, ecc83. When pushed into overdrive it offers clean distortion with well balanced lows and mids. The jj 12ax7 is well suited for all types of music and playing styles. Heater voltage vf 6,3 12,6 v heater current if 300 150 ma. Jj 12ax7 ecc83s 7025 tubes are famous amongst guitar players, they provide a a well balanced. Balanced with matched triodes for use in phase inverter positions or in high end applications such as studio compressors or audio where balanced halves also known as. Jj ecc803s 12ax7 datasheet pdf download adobe acrobat pdf reader.
Also known as the groove tubes ecc83s and ruby 12ax7acz hg. Jj electronics ecc83s balanced tube for phase inverter reverb. Special grid plated by gold to reduce microphone interaction and noise. The ecc83s is a bit dulldark on top and the ecc803s is just the opposite. Users report that it is a richer and smoother sound as compared to the standard ecc83s and other manufacturers. Mullard 12ax7 ecc83 new production preamp vacuum tube. In addition to the great characteristics of regular jj ecc83s, gold pin versions has low. I know i dont like sovteks in any way, every one ive used has not been good for me, in any amp i have. Double triode quick reference data anode current ia1,2ma transcoductance s1,6mav amplification 100 heating heating is indirect by ac od dc, with serial or parallel supply. The jj factory was born out of the ashes of the former tesla factory. It was released for public sale under the 12ax7 identifier on september 15, 1947. The jj ecc803s is a warm, full sounding tube, with highgain. They have a construction that is similar to a framegrid tube similar to the telefunken ecc803s. Preamp tube descriptions vacuum tubes by jj electronic.
Jj electronics 12ax7 ecc83s 7025 preamp tube evatco. It allows for more clean headroom than higher gain 12ax7s. The jj ecc83s gold pins preamp valve indeed does have gold pinned connectors but overall customer feedback is that it does have better sonic qualities. Obviously a lot more can be said about the effect each tube type has on tone but the best thing to do is have a listen for yourself and make your own determination on what type you prefer in your amp. Vacuum tube 12ax7 ecc83, jj electronics antique electronic. So if you want a smooth tone they are great but if you like a little grit in your tone like a dirty keith richards rhythm tone or an angus tone then standards are better. The jj ecc83s tube has several improvements in its construction from the old ecc83 version.
These tubes are immediately discernable from other 12ax7. Double triode ecc82 is 12au7 medium gain preamplifying double triode. This tube clips slightly earlier than other 12ax7s giving you that edge. You can refer to site like tubestore or tubedepot to verify this. The brimar cv4004 is an excellent uk made 12ax7 with a quasi boxed anode. El84 datasheet pdf pentode triode, vacuum tube philips. Vacuum tube 12ax7 ecc83, jj electronics ce distribution. Double triode e88cc is the european name of 69226dj8. Jj has been great for me, and though they have a little darker tone, its fine for me since i dont like too bright anyway.
Warranty information and return policy warranty period. These tubes are built to tighter tolerances and they are very smooth sounding. Vacuum tube 12ax7 ecc83, jj electronics amplified parts. In the modern times we live in it is great to be able to purchase a new tube of this quality. The ecc83s is great tube with a tight low end, a very natural and harmonically complex mid with very good definition and a sweet high end that is not brittle. This construction makes them very rugged and reliable. Jj electronics t12ax7sjj vacuum tube ecc83 electric. We have a limited supply of low noise selected tubes, as well as brimar cv4004 with balanced sections.
It retains all of the definition and detail that the ecc83s short plate and the ecc803s long plate tubes have but it has. It utilizes a medium length ribbed plate design that is much like the old amperex and brimar european designs. The jj ecc83s 12ax7 is perhaps the most consistently high gain of all 12ax7s. Eirc electronic tubes factory data sheet ecc8312ax7 page 4 of 4 telephone. The ecc83 12ax7 valve is used in the preamplifier section of 99% of all valve guitar amplifiers.