There is more information available about tube power supply design in the power supply design for vacuum tube amplifiers article. It is a thermionic valve of the power pentode type. With his simple stew of el84 power tubes, 15 watts of power, and a 12 speaker, he created one of the greatest, most timeless vehicles for electricguitar expression. Tube 6bq5 or rohre 6bq5 id, vacuum pentode, noval, b9a and power output shown. I looked at it, and it is an el84 6bq5, and it is supposed to be a 7189a. In audio frequency amplifier, it can amplify a1,ab1 and b. Eirc electronic tubes factory data sheet el84 page 1 of 8 telephone. Tubedepot carries a selection of el84 6bq5 7189 power vacuum tubes. By the late 1950s there was a large selection of stereo hifi audio tube amplifiers available. 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. El84 sylvania black plate single sylvania the american made sylvania el84 is an exceptional sounding el84 for guitar amplifiers. Smoother sound and the cut control now has a more usable sweep. Custom dynaco st35 el84 tube amp build part 1 bg033 duration.
The el84 is smaller and more sensitive than the octal 6v6 that was widely used around the world until the 1960s. The movie camera did not obtain with fidelity the definition that this amplifier has. Scott logo partial and the sittard factory code is etched in the glass. Philips, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. It is used in the power output stages of audio amplifiers, most commonly now in guitar amplifiers, but originally in radios. The el84 is smaller and more sensitive than the octal 6v6 that was widely used around the world until the s. In most cases the tubes manufactured to the european system have an exact equivalent tube in the american system and vice versa. Click this button to get the free adobe acrobat reader. These were all lightly used but tested at nos levels or higher, and then further matched on our maxi matcher to within 15 milliamps of current draw for best performance in your hifi or. Jul 24, 2019 the el34 is a much loved audio power valve with an anode dissipation of 25 watts. Pins 1, 6 and 8 are not used on the el84, so feel free to use them as extra soldersupports for caps and resistors. It bends the specs by 10 to 30 volts, operating the tubes with a tube plate to cathode voltage of 310 to 330 volts. They will work in any amplifier that takes these tube types, as long as the plate voltage is under 520 vdc. El84 jj 6bq5 matching the sovtek el84 is often sold under their own brand name by other wellknown electric guitar and guitar amplifier manufacturers datneblatt as.
Sep 18, 2019 el84 datasheet pdf vacuum tube philips, pentode triode, el84 pdf, el84 pinout, el84 equivalent, el84 data, circuit, el84 schematic, el84 manual. Nos stocks of this tube have been released for public sales only recently, and stocks are low. The free shipping option allows tubedepot to choose the most appropriate carrier and service. Like a box of getters was in contact with air too long, etc. El84 datasheet pdf pentode triode, vacuum tube philips. Widely recommended by many makers of el84 amps, this tube has a good reputation for having a lot of everything a good el84 should. Replacing el84 tubes with el34 tubes ultimate guitar. Extra flashing is placed at the ventilation holes on tungsram el84 and then these were screened and tested by siemens for a military contract. Is there any way to put el34 tubes in an amp that uses el84. Within a few years, dennys ac30 would supplant the ac15s first masterstroke as the standard bearer of british amplification effectively becoming for british invasion. El84 s are closely associated with the marshall sound and are stock tubes on most of these amps. I just purchased a pioneer sx 800 receiver from a forum member, and when it got here, one of the tubes had wiggled out of the socket, and the top is broken. With standard el84, plate current ranges from an estimated 30ma to 90ma. 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.
Pushpull pp el84 tube amplifier schematic ecc83 input. The sole later launched ecl86 may not be considered as a true successor as it is a multiple beampower tube. Bill beechs online tube data from mostly rca manuals. Output pentode quick reference data anode current ia48ma transcoductance s11,3mav amplification g2g119 output power wo6w heating indirect by ac or dc. Noval u f 6,3 v i f 0,760 ma typical characteristic. Originally designed for the output stages of audio frequency amplifiers, the el84 can deliver up to 17 watts. For more information about tube based power supplies, see the article power supply design for vacuum tube amplifiers.
El84 tung sol ru tungsol russia the tungsol el84 6bq5 was a popular oem tube for americanmade el84 6bq5 guitar amplifiers in the late 1950 early. Nos nib tungsram el84 6bq5 these mil spec tubes were actually made for siemens and are one of the best sounding el84 tubes we have heard from eastern europe. May 07, 2019 6bq5 datasheet pdf from wikipedia, the free encyclopedia. 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. Sylvania jan 6bq5 el84 grey plate matched pairquads these babies pack a punch and are milspec version of some of the best guitar amp tubes you can find. If you go strictly by design specifications, the 7189 will replace any of them due to the fact that. Pushpull pp el84 tube amplifier schematic ecc83 input pushpull pp el84 tube amplifier schematic with ecc83 input stage.
El83 6ck6 valves in place of el84 post by nicko fri dec 05, 2014 5. El84 svetlana datasheet, cross reference, circuit and application notes in pdf format. They deliver about 2w in triode mode, or, about 5w in pentode mode. Guitar players are looking for different qualities in valves, the most important of which is breakup. High transconductance pentode tube 6p14s anticathode limit dissipation power is 12w. The most accurate method to test tubes, the curve plots can actually be compared to the printed examples for each tube type that appear in the manufacturer technical data sheets and books. Dec 22, 2009 the tube data sheets that show ic means internally connected.
Ive always used jjs 84s but the last few pairs were pissing me off, they had a very hardharsh tone. Good, better, best el84 tubes discussion in amps and cabs started by corn husk bag, jul 12, 2014. What are the best sounding el84 tubes stereo amplifiers. This is the classic singleended el84 schematic from mullard. Its dissipation power was increased from 9 to 12 watts, giving an output power of 5. El84 philips el84 pentode data el84 el84 triode pentode el84 1. 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. This rare 1959 amperex 7189 tube is a higher voltage el84 6bq5 tube type. Manufacturers were quick to adopt it in general use, and they are found in many old european valve radios and other audio equipment. An interchangeable north american type is the 6bq5 the retma tube designation name for the el84.
Owners of amps from dynaco, eico, mullard, and fisher, among others, were enjoying great sound from these reasonably. You can use acrobat for viewing and printing pdf files. Sn76477 2n4401 free transistor equivalent book semiconductor. Most of the datasheets are in pdf format and some are links to other html pages. The 1943, 1949 and 1959 sylvania tube manuals online. Dec 03, 2010 you need to be careful with sites that are catering to guitar players the el84 is used in the vox ac30 and other amps.
This tube gets great clean sounds and cuts through in a band setting really well. Apr 23, 2019 tdsl tube data 6p14p 614 so if parameters of a lot are the same, the higher expectations you can have to the base quality of that lot. The thin glass tube envelope is 20 mm in diameter and, excluding the b9a base pins, is 70 mm tall. The el84 is a thermionic valve of the power pentode type. The input stage uses a ef86 to drive a mullard el84. The sovtek el84m is a rugged military issue el84 6bq5 that can withstand higher plate current than any current production el84, and is a suitable replacement for the 7189. 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. 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. One or the other in most cases, a guitar amp is built to accept either 6l6s or el84 s, and you will need to be aware of which, and the nuances of each before making a decision. El84 datasheet pdf vacuum tube philips, pentode triode, el84 pdf, el84 pinout, el84 equivalent, el84 data, circuit, el84 schematic, el84 manual. Their is a lot of confusion with respect to this family of tubes and whether.
Hashimoto was not expecting to hear the powerful, but shining sound from his vintage speakers. The 6bq5s the power output tubes are still easy to obtain, with many different brands to choose from. For years i have been using a valve tester that i had developed in the past. Pacific northwest washington just wondering what the best replacement el84 tube is at this time. In the el84 you can see that the cathode and suppressor grid are internally connected before going to pin 3. Output pentode quick reference data anode current ia48ma transcoductance s11,3mav amplification g2g119 output power wo6w heating. This matching is provided at no extra charge for any 6bq5 el84 type of power tubes. This accounts for over 98% of the tube guitar amplifiers on the market. El84 audio tube data sheet datasheet, el84 audio tube data. Good if guitar players want an alternative from the. For this reason i have developed and thoroughly tested the textbook el84 6bq5 amplifier version with dozens of tubes, and recommend its use for most builders and tubes. The sovtek el84m has a clean sound, and nice balance. With the very large number of vacuum tubes or thermionic valves that were produced and as a result of the multiple vacuum tube numbering systems that were in use, there are generally equivalents for most types of tube.
Im using tad el84 strs and tung sol pre amp tubes with good results. Push pull audiophile output 16081650 series tube audio push pull classic tube type ultralinear output transformers a. Jun 23, 2019 tdsl tube data 6p14p so if parameters of a lot are the same, the higher expectations you can have to the base quality of that lot. El84sylvania black plate single sylvania the american made sylvania el84 is an exceptional sounding el84 for guitar amplifiers.
El84 tone can be characterized as chiming, trebleheavy, and articulate compared to other power tubes. 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. This tube is a direct equivalent of the el83 and sv83 and very close to el84 6p14p. Eliminating a preamplifier triode in radios made them cheaper. Free shipping and free tech support for el84 guitar amp tubes. The very successful el84 is the last development step from el3 via el41 to the final point of radio output pentodes. El84tung sol ru tungsol russia the tungsol el846bq5 was a popular oem tube for americanmade el846bq5 guitar amplifiers in the late 1950 early. You need to be careful with sites that are catering to guitar players the el84 is used in the vox ac30 and other amps.
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