Jj el34 datasheet pdf

El34 ii has fuller low mids and low end but does not lose headroom in the high end. Jj electronic vacuum tubes, capacitors, amplifiers. Octal u f 6,3 v i f c a 1,5 a typical characteristic. Over all its a bit tighter than the jj el34 which is nice for combos or hifi where the standard el34 gives more of a vintage el34 tone. Today, this rich history continues with the introduction of new production tubes from telefunken. In contrast to el34, jj kt77 has good amount of bottom end. Sep 18, 2019 el84 datasheet pdf vacuum tube philips, pentode triode, el84 pdf, el84 pinout, el84 equivalent, el84 data, circuit, el84 schematic, el84 manual. This tube is very much like the jj el34 but it has about 1520% more headroom.

The jj kt77 have crystal clear 3d cleans, extended lows and highs. The new jj el34ii power output vacuum tube is now available. The el34 is a thermionic valve or vacuum tube of the power pentode type. The new jj el34 ii power output vacuum tube is now available. El34 datasheet, el34 pdf, el34 data sheet, el34 manual, el34 pdf, el34, datenblatt, electronics el34, alldatasheet, free, datasheet, datasheets, data sheet, datas. Each wound string is precision wrapped with round nickelplated steel onto a high carbon, hexagonshaped steel core. The kt88shuguang has an absolute maximum anode dissipation rating of 50w and is designed for use in the output stage of an a.

The added bottom end also makes kt77 noticeably clearer sounding at low volume. Jj 6ca7 datasheet pdf download adobe acrobat pdf reader. El84 datasheet pdf pentode triode, vacuum tube philips. If you are yearning for more hammering heft, jj kt77 is a good choice. Mullard, which was a subsidiary of phillips, originally released the el34 in 1953. An easily constructed highquality singleended 8w amplifier. The difference between the el34 and el34l is that the 34l is physically taller. It is intended for audio frequency power amplification service in either pentode, ultralinear or triode connection and single or pushpullparallel applications.

El34 is a glass envelope power pentode having a plate dissipation rating of 25 watts with convection cooling. The el34 is a pentode, while the 6l6, which delivers a similar range of power output, is a beam tetrode which rca referred to as a beam power tube. Warranty information and return policy warranty period. Feb 28, 2015 jj s in general are described as dark sounding not as rich in the high frequencies as other power tubes. It may be a little more 35 ma or a little less 25 ma. These tubes are probably the best modern production el34s for hifi tube audio. The jj el34 is perfect for most applications because of its solid low end and the fact that its tighter, punchier and has great break up. Which is nice for guys that want a 6l6 sound in their el34 amplifiers. Jj electronics el34 and e34l data sheet pdf el34 ei yugoslavia. Gold lion kt88 made in england draft of new spec sheet 4302002 beam tetrode 63v indirectly heated the kt88 has an absolute maximum anode dissipation rating of 42w and is designed for use in the output stage of an a. The jj el34 ii is stronger than the original but not harsh sounding in. Output pentode suitable for use in power amplification quick reference data anode current ia100ma transcoductance s12,5mav amplification mg2g111 output power, class b wo100w heating heating is indirect by ac or dc, with parallel supply. Eine el34 des slowakischen unternehmens jj, vormals tesla.

The plain strings are made from the same high carbon steel as the hex cores. Vacuum tube el34, mullard reissue antique electronic. Single tube pushpull ua 250 270 v ug2 250 270 v ug1 14 17,5 v ia 72 4 ma ig2 5 11 ma ra 22,5 k. El34 datasheet vacuum tube of power pentode philips. Special grid windings give a unique sound for both guitar and hifi perfect power tube for dynaco st70 or vintage marshalls, hiwatt or other british amps. The beautiful mellow sound of my single ended hifi tube amplifier handmade by kenji mizushima in japan with the el34 mullard tubes is second to none.

U a 250 v u g2 250 v u g1 7,3 v i a 48 ma i g2 5,5 ma s 11,3 mav. For the most part, the jj kt77s will bias up same as an el34 6ca7. Gold plated control grid provides improved fidelity. El34s are most commonly used in pairs in a class abi pushpull configuration. I think if you are looking to replace a quad, there is absolutely no reason not to buy these tad jj el34 matched quads, they do exactly what they are. Jj has upped their game with the new el34 2, and the design change is truly big enough to warrant the use of the new name. Beam pentode for af power amplifier applications, 6l6gc datasheet, 6l6gc circuit, 6l6gc data sheet. Although power pentodes and beam tetrodes have some differences in their principles of operation the beam forming plates of the beam tetrode or fifth electrode 3rd grid of the pentode, both serving to hinder the return of unabsorbed electrons. Two valves in class ab1 give a continuous output of up to 100w.

Please see the substitutes at the top of the page for more details. Jjs in general are described as dark sounding not as rich in the high frequencies as other power tubes. The jj 6ca7 is now in direct competition with the eh. Single tube pushpull ua 250 250 v ug2 250 250 v ug1 12,5 15 v ia 45 70 ma ig2 5 ma ra 50 k. The jj el34 is a great replacement for guitar amplifiers and stereo amps as well. Jj and shuguang el34 will track closer to what you described the el34. It is especially suited for use in resistancecoupled voltage amplifiers, phase inverters, multivibrators, and numerous industrialcontrol circuits where high voltage gain is desired. Pdf scanned from an original document held by the museum. 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. A great replacement for modern and vintage amplifiers. Each tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics. For the most part, the jj kt77s will bias up same as an el346ca7. Ua 250 v ug3 0 v ug2 265 v ug1,5 v ia 100 ma ig2 14,9 ma s 11 mav ri 15 k.

An extremely faithful reissue of the xf2 mullard el34 from the 1960s. The 12ax7 is a miniature highmu twin triode, each section of which has an individual cathode connection. Output pendode el34 is an octal power tube with a maximum plate power of 25w. Nov 17, 2016 el34 is a glass envelope power pentode having a plate dissipation rating of 25 watts with convection cooling. The el34 is a much loved audio power valve with an anode dissipation of 25 watts. Jj el34 ii valve el34 ii has fuller low mids and low end but does not lose headroom in the high end. Jj el34 power tubes are very smooth and open sounding with crisp highs and the biggest low end of any current production el34. El84 datasheet pdf vacuum tube philips, pentode triode, el84 pdf, el84 pinout, el84 equivalent, el84 data, circuit, el84 schematic, el84 manual. The kt88 is also suitable for use as a series tube in a stabilised power supply.

Elektroakustik, in partnership with jj tubes from the carpathian mountains of cadca in slovakia. A pair of 6ca7 jj seem to fit even better with this amp and 40oz british style speakers. Substitutes are given as a guide only please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Noval u f 6,3 v i f 0,760 ma typical characteristic. Two tubes in class ab1 give a continuous output of up to 120w. A centertapped heater permits operation of the tube. All telefunken branded tubes are hand picked to be the best examples of eastern european construction in the. The el34 is a high output pentode tube as opposed to other output tubes like the 61.

Philips, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. In a guitar amp, jj kt77 is a good choice for those wanting to venture away from regular el34. The physical size seems affect the tubes frequenzy response. 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. Jj e34l el34 datasheet pdf download adobe acrobat pdf reader.

As always, please check with your amp tech before swapping differen. Vacuum tube el34, mullard reissue antique electronic supply. Jjel34 offered from pcb electronics supply chain shipps same day. El34 s are most commonly used in pairs in a class abi pushpull configuration. Gec, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Generally, i would stick with the el34, but try other brands. Stronger than regular el34 but not as aggressive as the e34l.