The jj el34 is one of the most popular power tubes around. Sep 30, 2015 jj electronics jj e34l el34 the sound is well balanced with tight bass response and great mids. Certain high end manufacturers especially in the 80s designed circuits that ran the thenavailable, endoflife production tubes which were often built to take abuse well beyond specified design levels so they could be sold under various uprated special numbers at the limit they could get away with. They still have an extended bass response, its just clearer in low mid range, and mids, with.
In a guitar amp, jj kt77 is a good choice for those wanting to venture away from regular el34. All structured data from the file and property namespaces is available under the creative commons cc0 license. Anyhow, for robert, i have jj el34s and i believe 12 ax7 but will have to verify what the v14 are exactly. Kt88 datasheet, kt88 datasheets, kt88 pdf, kt88 circuit. Actually gt was the first to introduce this type of el34 e34l back in the late 80s to early 90s. Pdf el346ca7 mullard el34 svetlana el34 el34 el34 tube pentode el34 6ca7 el34 amplifier circuit tube el34 data. Kt90 and types and brands exist, and what you can do with the this tube. Easily install new extensions and manage extensions you download from the adobe exchange site. The sound is well balanced with tight bass response and great mids. A pair of 6ca7 jj seem to fit even better with this amp and 40oz british style speakers. It may be a good idea to read this short users guide. Scan your all pdf file from your internal and external storage and show them.
The el34 is a thermionic valve or vacuum tube of the power pentode type. Kt88 gec 6550 datasheet, cross reference, circuit and application notes in pdf format. When i am done, i simply trash the folder contents i no longer need. Click the schematic to see the high resolution image. Same as the el34, but the jj electronics e34l has 20% more headroom than the regular jj el34. Lifespan of el34kt77 tubes steve hoffman music forums. Octal u f 6,3 v i f c a 1,5 a typical characteristic. Triode electronics triode usa tube amp kits transformers. El34 s is an economical method to achieve high quality sound with a minimum of driving stage components. Ez double anode rectifying tube max 77,8 max 22,2 max 71,4.
Block diagram, pinout and 6v6 circuit application inside. Start this article has been rated as startclass on the projects quality scale. Download engineering software for accessibility ebook from. Can be used instead of kt88, 6l6, el34 and other tubes see datasheet first. It has an international octal base indicated by the 3 in the part number and is found mainly in the final output stages of audio amplification circuits and was designed to be suitable as a series regulator by virtue of its high permissible voltage between heater and cathode and other parameters. These vacuum tubes are mainly used for guitar and hifi amplifiers. The license agreement for the files of the vacuum tube modeling. For new production, i had the same winged c tubes as you and liked them. Apr 28, 2019 the thin glass tube envelope is 19 mm in diameter and, excluding the b9a base pins, is 70 mm tall. The purpose of this kt88 kt66 6550 kt90 kt120 page is to give an overview about what kt66, kt88. Output pentode suitable for use in power amplification. The jj e34l is a high grade powerful el34, manufactured at the jj factory ex tesla in slovakia.
This site is the official home of eddie, the ultimate programmers editor for mac os x and linux gnome. Of course, i didnt try every tube out there and both those kinds would be pricey and perhaps hard to track down. Gec, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Download a zip file of all fgiles on the 75wab2 amplifier by clicking here 807 military specs in a pdf file. Same as the el34, but the jj e34l has 20% more headroom than the el34. There are a lot of el34 choices, but on this forum it seems the big winners are shuguangs. I set mine exactly like he said and got my lp to sound sweetly distorted. They brighten clear things up, without getting harsh or being fatigueing on my sorrow ears. Basically any amp using 6550s can use the jj kt88s. The svetlana el34 is manufactured with the original mullard design in the svetlana factory in st. I personally didnt like the jj el34 iis in my smallbox, or jcm800, but i can see them working for certain applications.
Beam pentode for af power amplifier applications, 6l6gc datasheet, 6l6gc circuit, 6l6gc data sheet. Kt88 datasheetpdf list of unclassifed manufacturers. As with many of the eastern european tubes, mechanical noise is an issue if used in high power combo style amps. Jj now makes a version of this tube e34l which is a 25watt tube according to their spec sheet. Download free acrobat reader dc software, the only pdf viewer that lets you read, search, print, and interact with virtually any type of pdf file. I currently running winged c el34s and like the sound overall. Petersburg, russia, and is designed to be a direct replacement for any el34 6ca7 or equivalent. Here weve listed our collection of guitar amplifier schematics. The svetlana el34 gives electrical and audio performance very, 233 0439 497 g1 5 nc 3 7 2 h 1 g3 8 k svetlana el34 6ca7 high, a1 single tube plate voltage grid 2 screen voltage grid 1 control voltage peak af grid 1. This article is within the scope of wikiproject guitarists, a collaborative effort to improve the coverage of guitarists on wikipedia. When i had an el34 amp the tubes i liked best were vintage tesla not jj and the siemens rft.
Most of the products that jj offers are audio receiving tubes. Power supply schematic 619k pdf file the hv supply uses plitron 067053201 225va toroidal transformer, which has two 175v windings that are connected in series to get 350 vac. Jj e34ls have a huge sound stage and one of the best tight bass end that an el34 valve can offer. Jj electronics el34 power vacuum tube matched pair musicians. Great for cutting through on lead playing and fat beefy r. Also the most common electrical circuits are given for kt88 and 6550. I could see where at the volumes he set his at and with the 2 channels jumpered that hed get that overdriven sound. It arrived with a loose reverb tank that took out one of the jj 6l6gcs, in turn popping the main and tube fuses on power up. The added bottom end also makes kt77 noticeably clearer sounding at low volume. Many web browsers, such as internet explorer 9, include a download manager. Etc beam pentode 6v 3v indirectily heated,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors.
If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks. Unless you have disposable cash to spend on tubes, it can take a lot of time to try out various tubes. Note that neither speaker jack has a shorting switch. Standalone download managers also are available, including the microsoft download manager. The preamp ground bus is grounded at the high input jack ground terminal. May 28, 2007 actually gt was the first to introduce this type of el34 e34l back in the late 80s to early 90s. A cookie stores a small data file on your computer. They are based in cadca, in the kysuce region of slovakia. Smallsignal triode data was obtained from tom mitchells book. Jj electronics el34 and e34l data sheet pdf el34 ei yugoslavia. But lately ive found great sound from the new jj 6ca7, great presentation, strong and rich. Ef806s gold gold pins pentode ef806s is a substitution for the ef86. Y el84 single ended single ended amplifier amplifier dont make nfb this version because in general sound get tight when made some kind of nfb. If you dont need the 6l6el34 option then standard princeton reverb power and output transformers will work fine.
This mod is a must if you want to run 6l6 or 5881 power tubes but makes the sockets incompatible with el34 tubes. Goldplated molybdenum alloy grid and carboncoated screen grid makes it one of the best current production matched pair el34s on the market. Anyhow, for robert, i have jj el34 s and i believe 12 ax7 but will have to verify what the v14 are exactly. If you are yearning for more hammering heft, jj kt77 is a good choice. Output pentode el34 ii has fuller low mids and low end but does not lose headroom in the high end. If you want el84 single, 6l6 or el34 is recommended from experience. Etc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors.
Jj electronics el34 power vacuum tube matched pair guitar center. Files are available under licenses specified on their description page. Oct 11, 2011 9th february 20 ever since i built the amplifier, there was an issue with a small amount of 100 hz hum from the power supply. A voltage doubler is used, which produces around volts, and. The el34 is a much loved audio power valve with an anode dissipation of 25 watts. El34svpl svetlana matched, valve audio tubes wagner.
Realizing that i did not double the capacitance in the power supply, as described if it was to be used for a stereo amplifier, i wanted to correct that mistake. Kt88 pdf, kt88 description, kt88 datasheets, kt88 view. I think they have a leanness that might help clear up a murky bass response on drop tuned, or 78 string guitars, or a farty amp. The thin glass tube envelope is 19 mm in diameter and, excluding the b9a base pins, is 70 mm tall. Navigate to the folder you made, open it and open the file. Pdf file reader is the best tool to manage your all pdf file at one place in your phone with. The new jj el34ii power output vacuum tube is now available. Jul 03, 2012 different circuits and voltage and current levels stress tubes in different ways. Imo power tubes affect single channel amps more than those in multiple channel amps. Improved vacuum tube models for spice simulations, part 1 improved vacuum tube models for spice simulations. Download a pdf file of all 211 pages at once by clicking here. A number of customers have reported that this 6ca7 tube is darker sounding.
Goldplated molybdenum alloy grid and carboncoated screen grid makes it one of the best current production matched pair el34 s on the market. Type el34 was first introduced in the el34 is smaller in diameter and taller than the 6l6 and is capable of a higher plate voltage. Pdf el34 6ca7 mullard el34 svetlana el34 el34 el34 tube pentode el34 6ca7 el34 amplifier circuit tube el34 data. If you need a guitar amp schematic for your amp repair that is not listed here, contact us and well try to locate it. It was made for them by the original tesla company, which then got sold to jj. New mts owner here, i bought an rm50 head with the clean black stripe and ultra xl chicken head modules installed.
However, you can also skip to chapter 3 for the installation procedure. In contrast to el34, jj kt77 has good amount of bottom end. Pdf file reader for android free download and software. Beam pentode 6v 3v indirectily heated, kt88 datasheet, kt88 circuit, kt88 data sheet. You can open pcb express and use the open command in the program. Its a sturdy tube that can handle heavy use, excellent replacement for marshall amplifiers, etc. Very robust and reliable due to its internal construction.
1445 1216 561 1103 216 601 1017 1529 914 543 768 531 171 220 641 172 259 1530 1539 1016 1257 47 1407 1227 1205 681 785 64 748 213 1181 878 560 1228 1359 1459 1423