Philips, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Hashimoto was not expecting to hear the powerful, but shining sound from his vintage speakers. It is used in the power output stages of audio amplifiers, most commonly now in guitar amplifiers, but originally in radios. The very successful el84 is the last development step from el3 via el41 to the final point of radio output pentodes. I just had a guy, a mod actually, on an popular electronics forum tell me there is no way four el84 s will do anywhere close to 58 watts lol. The special 6 el84 adapter reconfigures the special 6s 6v6 output tube socket to accept an el84 output tube.
The output transformer of this amplifier is set up by merging three coil. Eliminating a preamplifier triode in radios made them cheaper. Due to many requests by fans of our tungsol line of tubes, the tungsol el84 6bq5 has been reissued. Tube amplifiers operate at high voltages which may cause property damage, serious injury or death. For years i have been using a valve tester that i had developed in the past. There is more information available about tube power supply design in the power supply design for vacuum tube amplifiers article. Please see the substitutes at the top of the page for more details. Its dissipation power was increased from 9 to 12 watts, giving an output power of 5. The 7189 is a power amplifier pentode designed for use in audiofrequency power output. El84 class ab1 pushpull ul connection data sheet 43% screen tap. The ul84 was designed with a 100 ma heater, for use in universal voltage environments and thus with limited ht available. Thd y ellow jackets are specialized adapters which permit the use of el846bq5 power tubes in place of 6v6, 6l6, el34, 7027 6550 under 520 volts and 7591 types. Gold plated control grid for improved fidelity and a plate dissipation of up to 12 watts.
The el84 is a thermionic valve of the power pentode type. The content on this website is intended for informational purpose only. Noval u f 6,3 v i f 0,760 ma typical characteristic. The sole later launched ecl86 may not be considered as a true successor as it is a multiple beampower tube. Their is a lot of confusion with respect to this family of tubes and whether. In a balanced circuit is supplied with a power of 10 to 17 watts. This accounts for over 98% of the tube guitar amplifiers on the market. Owners of amps from dynaco, eico, mullard, and fisher, among others, were enjoying great sound from. It is a thermionic valve of the power pentode type. Vht 6v6gt to el84 converter adaptor with tubes reverb.
El84 datasheet pdf pentode triode, vacuum tube philips. 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. Preferred series tubes combine the best of everything that has to offer. The all new tad el84 str tube combines the best of both worlds. We chose the thickest glass option and heaviest construction like the russian el84m tube and sonically most promising cathode and plate option to meet and exceed the tonal quality of the jjtesla el84 tube. El84 audio tube data sheet datasheet, el84 audio tube. If you cant find what you need here, try duncans tube data sheet locator. They will work in any amplifier that takes these tube types, as long as the plate voltage is under 520. This comparison only covers a few of the external structural differences.
As for sonic differences let your ears be the judge. Direct heating cathode, medium power consumption triode is used for class a amplification. The el84 is smaller and more sensitive than the octal 6v6 that was widely used around the world until the 1960s. 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. This is the classic singleended el84 schematic from mullard.
Datasheet search engine for electronic components and semiconductors. El83 6ck6 valves in place of el84 post by nicko fri dec 05, 2014 5. It was originally designed for the military to have longlife audio tube with lowmicrophonics, and not having to use the lower quality el84 radio tube for this. Audio watts primary impedance tube types 1608 10 8,000 ct 6aq5, 6v6, 6bq5, el84. Pushpull pp el84 tube amplifier schematic ecc83 input pushpull pp el84 tube amplifier schematic with ecc83 input stage. Due to its rugged construction and conservative ratings, it is the most reliable current production el84 type. An inexpensive, easy to build diy valve tube tester for quite some time i have been looking at developing a design for a diy valve tube tester that is easy to build and uses readily available, low cost parts.
The mullard el84 is a classic audio pentode valve, immortalised in the 1950s 510 design for an audio amplifier. Rory gallaghers modified ac30 using el83s in place of el84s i have been tempted to try these. The el84, or commonly known as 6bq5 in north america, was intended for use as an inexpensive alternative to the larger audio tubes of the time, such as el34, 6l6, and kt66 power tubes. Pushpull pp el84 tube amplifier schematic ecc83 input. Push pull classic tube type output transformer suggested tube types cat. Scott logo partial and the sittard factory code is etched in the glass.
The el84 was developed to eliminate the need for a driver tube in radios, so it has rather more gain than is usual in a power pentode. They deliver about 2w in triode mode, or, about 5w in pentode mode. Our current inventory of 6bq5, 7189 and el84 tubes. Tubedepot carries a selection of el84 6bq5 7189 power vacuum tubes. Originally designed for the output stages of audio frequency amplifiers, the el84 can deliver up to 17 watts. The standard el84 has actually not a very high lifetime, it can be microphonic, and is produced with an almost unacceptable wide range of. Now special 6 players can enjoy the earlier breakup, distinctive midrange complexity and legendary top end chime that only an el84 can provide. Due to its rugged construction and conservative ratings, it is the most reliable current production el84 type available for use in vox ac30 type amplifiers. I am mainly going to cover 12ax7ecc83 and 5751 type preamp tubes and el84 6bq5 power tubes. El84 datasheet pdf vacuum tube philips, pentode triode, el84 pdf, el84 pinout, el84 equivalent, el84 data, circuit, el84 schematic, el84 manual.
Voltage ac or dc current cathode tad el84 str high performance audio beam power pentode the tad el84 str does combine best of both worlds. Mount the nine pin tube socket on the general purpose board by 12 spacers at one end of the board. In addition, its linearity and tone characteristic. Tad el84str high performance audio beam power pentode. Power tube selection charts for highpower audioamplifiers eimac,rcapage 1, rca page 2. Weve compared these to all of the classic european el84s, u. The tungsol el84 6bq5 was a popular oem tube for americanmade el84 6bq5 guitar amplifiers, such as those built by gibson and harmony. We did choose the thickest glass option and most heasvy construction like the russian el84m and sonically most promising. El84 audio tube data sheet datasheet, el84 audio tube data sheet pdf, el84 audio tube data sheet datenblatt, el84 audio tube data sheet funtion, schematic, pinouts, ic, chip, diode, capacitor, relay, igbt, resistors, module.
They will work in any amplifier that takes these tube types, as long as the plate voltage is under 520 vdc. The next time you need to re tube your guitar, bass, or hifi amp, be sure to insist on getting authentic electroharmonix tubes. Jj electronic vacuum tubes, capacitors, amplifiers. For musicians use and to promote sag, the two output diodes may be replaced with a ez80 or ez81 rectifier valve, although you should also provide it with its own extra vt1036 heater transformer to avoid a large voltage difference between the cathode and heater i.
For more information about tube based power supplies, see the article power supply design for vacuum tube amplifiers. El84 pdf, el84 description, el84 datasheets, el84 view. It is intended for audio frequency power amplification service in either pentode, ultralinear or triode connection and single or pushpullparallel. This rare 1959 amperex 7189 tube is a higher voltage el84 6bq5 tube type. Output pentode el84 is an output pentode for use in guitar and hifi amplifiers.
An interchangeable north american type is the 6bq5 the retma tube designation name for the el84. Tad says the following about their new el84 power tube. Both tube amplifier projects use el84 6bq5 tubes and the earlier one used a ecc802s driver while this one uses 5751 driver tubes. Here youll find manufacturers data sheets and curves for many popular and some not so popular electronic valve types. For other taylor tubes, see the entire 1945 taylor tube catalog in pdf format note, 1. Sep 18, 2019 el84 datasheet pdf vacuum tube philips, pentode triode. This project is related to the other tube amplifier projects i have posted. It has more than a casual similarity to the first pushpull el84 6bq5 oddwatt project from nearly two years ago. The thin glass tube envelope is 20 mm in diameter and, excluding the b9a base pins, is 70 mm tall. 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 r i 40 k. The input stage uses a ef86 to drive a mullard el84.
Originally designed for the output stages of audio frequency amplifiers, the el84 can deliver up to 1 7 watts. There are hundreds of pages of tube amp information on my library page. This end pentode is designed for use in audio amplifiers, and was introduced by philips in 1953. Eirc electronic tubes factory data sheet el84 page 5 of 8 telephone. This is a low power guitar tube amp suitable for practicing, recording or miking through a pa system.
Manufacturers were quick to adopt it in general use, and they are found in many old european valve radios and other audio equipment. The photos and comparison chart in this article compares and contrasts the current production russianmade sovtek el84 and genalex gold lion n709 el84 with the vintage genalex gold lion n709 el84. The jjs seem to fall right between the philips 6bq5s and. Sep 06, 2014 pushpull pp el84 tube amplifier schematic ecc83 input pushpull pp el84 tube amplifier schematic with ecc83 input stage.
Pdf 1650e 1650g 6l6 ultralinear el84 tube 6bq5 el84 4816. Keep all lead lengths as short as possible to avoid losses and parasitic. Svetlana technical data el346ca7 high performance audio power pentode he svetlana el34 is a glass envelope power pentode having a plate dissipation rating of 25 watts with convection cooling. Groove tubes tube reference guide 3 introduction to vacuum tubes electric guitar and bass players over the past 50 years have been linked by a single critical piece of equipment. It is dedicated to be used in audio frequency range which requires the output power 100w. Our exhibit carries the mullard logo but was not of uk manufacture. The telefunken el84 tk is a perfect replacement for any el84 6bq5 tube offering a reliable and great sound. El84 datasheet, el84 datasheets, el84 pdf, el84 circuit. Bring back the nostalgia with this one tube transmitter. Tube amp information, guitar amp schematics, tube amp.
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