El41 vs el84. This was my favorite tube setting when playing gigs.
El41 vs el84 crvena zvezda owns 😉 anyway, to convert your el84 amp to el34's, you'd need at least a new output transformer, if you want to run two. Re: Valves. just like led bias. In Reply to: RE: EL84 vs EL-34? posted by Mick Wolfe on January 7, 2022 at 08:56:23: Having worked with and for Roger Modjeski I can offer a bit of insight to the situation described in your post- You get all the tone of an EL84 with less volume overall. There is no intrinsic diffrence in the sound of an EL34/6CA7 compared to the 6L6 for example, but the EL34 has much higher control grid gain (11 mA/V vs 6 mA/V) and different screen characteristics. They've got lots going on in the low mids with kinda laid-back upper mids, which makes them kinda dull, stuffy, and blunt compared to other EL84's IME. The Best EL84 Power Tubes - www. ah thanks. Joined 2003. EL41 was the forefather of EL84, so I decided to use two of these instead. The EL84 is smaller and more sensitive than the octal 6V6 that was widely used around the world until the 1960s. The closest thing to EL84/6BQ5 you can find in a noval based compound valve certainly is the pentode section of ECL86/6GW8/PCL86/14GW8, which can be viewed as a plate Pd derated (9W vs. The amp on top of the speaker is a 'marshall' voiced jobbie designed by ampmaker here in the UK, based on the AX84 P1 using an EL84. AudioGeek. Brent Jessie has NOS GE 6BQ5 for $40 each and will match for gm (gain) for $80 in pairs. This site has a number of designs around these differences. Share More sharing options Followers 0. EL34 has more headroom and power, which will make it sound bigger and punchier, and will make the EL84 sound more compressed and less bassy by comparison. 2010-12-22 10:39 pm #10 2010-12-22 10:39 pm #10 As ever, some varied replies. This was my favorite tube setting when playing gigs. The 6BQ5 & EL84 are the same tube. The latest in a series of miniature output pentodes developed by Philips, its lineage stems Bulk pricing to the setmakers is probably an unknown, but the chances are that the EL84 was sold at substantially the same prices as the EL41, over which it offered a potential performance increment. in this configuration matching tubes for Idle current I like both EL84 and EL34 amps. In terms of musical tastes, the blues are my absolute favorite, followed by a lot of classical music. Power tubes. Pictures, data and characteristics from the green amps. Surely many more . In Reply to: EL84 vs EL-34? posted by mbnx01 on January 5, 2022 at 13:43:26: I'd be more concerned about where they're made than which tube type they use. I posted this in the amp forum, but BWTB forumites know a lot about gear too Over the next couple months, I plan on investing in a tube combo amp (either a Peavey Classic 50 or Fender Hot Rod Deville) and customizing it. After a lot of experimentation and research, including the choke almost catching fire due to too much current, I ended up with the configuration seen in the attached schematics . Cost The Sovteks are stiffer, harsher, and less musical than the JJ's IMO. The Admiral 6BQ5s look internally identical to the 7189. as long as they are well oversized. EL84 - 6BQ5; EL844 - 6BQ5 ; 7591S; EL34 ; Re: Cathode Biased EL84 Amp vs Fixed Bias Depends more on the circuit itself than the tube compliment trying to compare 2 amps by bias type is like trying to describe the driving performance of 2 cars only using the kind of tires each has. : ua = 250 V ug2 = 250 V Rk = 135 Ω Ia = 48 mA Ig2 = 5,5 mA Ra = 5,2 kΩ u g1eff (50mW) = 0,3 V RE: EL84 vs EL-34? Posted by 6bq5 (A) on January 6, 2022 at 08:49:44 . never had the opportunity to compare builds across brands, but i would hope that the other premium tubes that come out of the New Sensor factory come with premium guarantees, because it was alarming to see such a high failure rate. New Production VS N. ech81 ecb41 el41 amplifier. 2014-10-24 12:45 am #70 2014-10-24 12:45 am #70 no bland is really bad haha . This was recorded through the Class 5's low power mode (. Oct 16, 2011 #1 Has anyone ever done a sound comparison between the above mentioned I have used both tube types extensively in designs, though 6V6 before EL84. TAD's are clean, tight, sparkly, and hi-fi. . BenPerkins. Jump to Latest A. Favorite EL84's , Mullard (CV2975),Brimar,Siemens (E84L/7320). With proper care, a 6V6 tube can serve anywhere from 5,000 to 10,000 hours. There's a thread about Oto tube rolling where a few current issues are discussed, it might be worth looking for. 214. The EH's are slightly scooped but more pronounced in the low-mid frequency, they don't jump out at you like the JJ's. No, the ECL82/6BM8/PCL82/16A8 pentode section is quite different to EL84/6BQ5 in many regards. This is a suitable value for the screen grid potential of EF86 via R9, but the most important EL84 vs. The 7189A is rated 440v. com EL84 A. 6P14P vs. You wont be able to guess an amps headroom completely by spec alone as many things interact to determine it. I swapped out the old JJ EL84's with new EH EL84's today. RE: EL84 vs EL-34? Posted by airtime (A) on January 6, 2022 at 18:01:41 . 6v6 vs el84: Conclusion. low end seems to be dictated more by curcuit design, speakers, cabinet design (open or closed back), etc. Generally, an EL84 tube can last between 1,000 to 2,000 hours, depending on usage and maintenance. They sounded more refined than the JJ's. a 6CA7, or a KT77 or KT88 which are beam tetrodes, the 6CA7 being the American-made substitute or the EL34 which was a Philips-Mullard creation I think, so the American manufacturers couldn't use the particular pentode construction so they made a tetrode that could substitute directly and tubes of either type started to be G'Day, and welcome to AK! Although I have not A/B's these tubes, I personally know MANY guitartist's that love the New Sensor EL34 Mullard's. EL84 vs. If you dig regular JJ EL84's, you might be fine. By TJIann January 26, 2015 in 2-Channel Home Audio. In EL84 there is a tad more headroom and tiny increase in volume. the EL84 however does share the bias setting of -7v Vg1 for class A the autobias resistor for 36 and respectively 44Ma will mean the EL41 will Bias significantly Hotter in a circuit designed for a 84 I have always wondered if it weren't possible to Bias output tubes whit a decent wattage zener diode . gadget73 junk junkie. I've never gotten to the end of an EL84 so I can't say myself. They are great. "All else being equal" doesn't apply - you can never have equivalent conditions (not even Yellowjackets) that accurately compare both. jj-electronic. 3v pentodes. As many of you know I have a Heathkit SA-2 Int Amp, which recently blew a tube. Last edited: 2014-10-24 12:47 am. So my brand new ac30s1 had some severe humming issues. Search. It's normally not advisable to use an EL84 in an amplifier designed for a 7189. Bulk pricing to the setmakers is probably an unknown, but the chances are that the EL84 was sold at substantially the same prices as the EL41, over which it offered a potential performance increment. Posted: Mon Jun 06, 2011 6:45 am . I could run the CUT knob higher with the EH's, but some might miss the high-mid frequency articulation of the old JJ's. Chinese transformers, tube sockets and other components will ultimately dictate the sound quality. I've also been told by a local tube guru that many of the earlier 8 pin octal tubes are actually more linear than their miniature replacements (6SN7 vs 12AU7 for ex. Lots to play with. I'm not sure if I want to install KT66 or EL84 tubes in the amp though. Next Last. For triode mode, I dont know. It has the least clean headroom and can be pushed into distortion with aggressive playing. F. Member. They have not been produced for years, but Upscale has them in stock. The design goal is to boil off and control as many electrons as a 6V6, but with a smaller plate. O. I have always owned EL84 powered amps. When the EL84 The EL84 is a vacuum tube of the power pentode type. The only difference will be a bit of a difference in biasing/watts as the primary impedance specs for 6V6 vs EL84 are slightly different (8K vs 6. plate voltage,phase & biasing,so to bring out the best in the el84's you would have to compensate the 6V6 values. Reactions: jeb98. Tom The control grid of EL84 is at the same potential as the anode of EF86 via R8, so the cathode potential of EL84 is about 30 volts above ground. Found in many smaller Siemens tube amps and table radios. Sa puissance dissipée a été augmentée de 9 à 12 watts, lui donnant une puissance de sortie de 5. Thread starter Pooch; Start date 2014-11-21 3:23 am; Jump to Latest P. 1 watt) with a Fender FSR Tele with P90's on the bridge pickup and a Sennheiser 609 slightly off cen good points! plus any amp that blends tubes has to settle on a medium for both types i. Mr Boochie AK Subscriber. There are still NOS EL84 6BQ5 tubes out in the wild - they can be fairly affordable, especially given how many of them were rebranded for tube companies who acted as resellers (think drugstore tube tester displays), manufacturers of organs (Lowery, Baldwin), guitar amp manufacturers and the myriad of console stereo and tv/stereo consoles made during the 50s The OP had asked about pentode vs beam tubes, so I was assuming he was looking for something specific. 1; 2; 3; First Prev 3 of 3 Go to page. Subscriber. vs EL84/6BQ5 they are going to go to hell a lot quicker like that haha . TAD EL84STR vs. Both sound great, you The EL84 draws about 50 percent more filament power than a 6V6 and the elements are packed together much more tightly. I have a pair of outputs from a Sansui 1000 tube receiver. if you want to run four, you'd need a new power transformer and output El34 vs EL84 power amp for my setup? Discussion First post here, long time reader. I'd like to reuse the chassis, OT and PT and don't want to try to add another preamp tube socket. 6L6 vs. In this video I sound compare a pair of vintage Tung-Sol 6BQ5 EL84 up against a pair of JJ EL84 power tubes in my Stage Right SR15 amp. Nice mids, sparkling highs and solid bottom end characterize this tube. I used the EI's in a Pilot 232 power amp and a single ended Magnavox amp with good results (sound was similar to Philips/Holland EL84's). so SE Class A UL output stage using EL84's On the other hand, the EL84 tube is more closely associated with the British invasion, offering a chimey, more aggressive, and midrange-focused sound that cuts through the mix. The GE are very neutral sounding. Re: SE KT88 vs PP EL84 amps- thoughts? « Reply #10 on: 31 Oct 2013, 01:00 pm » The equation on the Wikipedia page is DF= Zload/Zsource, where DF is damping factor, Zload is the nominal impedance of the speaker, and Zsource is the output impedance of amp. GE will mostly be listed as 6BQ5. When using all six tubes together, there isn't much of a difference when using only EL84's. Posted by steven oda on November 13, 2004 at 19:21:01 . com Here I've my 18 watt amp biased for EL84 and6V6. RE: EL84 vs EL-34? Posted by Triode_Kingdom (A) on January 6, 2022 at 08:46:39 . The 7189 has the code rX4 on it, and the 6BQ5s have rX3. Trebla. Vacuum tubes, or simply tubes, are the core of a tube amplifier’s character and are divided into preamp tubes, power tubes, and rectifier tubes. Also there are brown stains on the inside of the glass, which is not abnormal for used tubes and does not indicate any problems and no one has, to my knowledge, been able to figure out what causes this. EL34 amp. Learn about the key distinctions between EL34 vs KT66 tubes & gain valuable insights to help you make an informed decision for your amplifier setup Skip to content. 6K I believe). If you decide to use EL84 instead of EL41, do not be tempted to increase idle current to 45mA (as per typical class A * In the EL84 types, the suppressor is tied to the cathode, so not even on a separate pin to the outside world of the tube. I've always been impressed by the EL84, but of course the EL-34's have a tad more power. EL84/6BQ5/6P14 (type 1) vs 6P15/SV83 (type 2) vs EL83 (type 3) AND NO, the 6P1 is not an EL84 type at all, with completely different pinout, and it has been mentioned that it is more like a 9-pin mini version of 6V6, similar to Not so sure about the EL84's or Tung Sol, but I just put a set of Mullard power tubes in my DSL 100 and the amp is singing. Joined Sep 8, 2019 Messages 6,335 Reaction score 21,094 Location Isabella, MN. So, the first and most important issue here was to construct a proper power supply. Thanks. Advanced Search This video is about tube comparison (el34 vs el84 vs kt66) #4 I swapped 6L6's for EL84's in my HRD, and I really like the change in tone , chimeyer, more warmth, faster breakup, The power supply, feedback, biasing arrangement, type of phase inverter, the type of the output (e. The EL84’s are being over run in these amps! Fender do the same but . Also probably more likely to need a grid stopper due to high gm. Jan 2, 2022 #1 So, I received my Orange OR15 the other day and it came loaded with JJ tubes. davebrons. First Prev 2 of 3 Go to page. I don't, personally. AudioFreak88. so i have plenty places for el84s from whatever mfr but I have chosen sovetek and a quad of their mullard reissues for my EL84 use. Does www. Stay Tuned: Guitar Blog EL34 vs EL84: Power Tubes: EL34 vs In Reply to: EL84 vs EL-34? posted by mbnx01 on January 5, 2022 at 13:43:26: I think you can be happy with either-I have a few pairs of Quad '57s and have run them with 6BQ5/EL-84 amps and EL-34 Amps - More power does make a difference, but I like having a sub in the circuit crossed over ~100Hz to avoid the bloom at 90Hz in the Quads- They were all 6v6 outputs. I also used old Russian 7189 types (later marketed by Sovtek as the EL84M). I prefer 6L6s to the EL84 as the 6L6 has more bass, less mids and a more defined crisp trebley attack. They're kind of TAD EL84-STR's +1. On the flip-side, as said, the EL84 now needs a smaller signal to drive it to full output power. From a construction standpoint I think JJ has hit the mark. The little single-ended Zenith stereo hifi console amp which "inspired" Steve Deckert's SE-84 "Zen" amps is a sleeper; I think I paid $20 for the one I have with original 7189 has a higher plate voltage spec than an EL84, something like 400v. I'm thinking of using them with El-86 tubes. Ich selbst habe meine NF-Verstärker gern mit der EL84 aufgebaut. Still 9-pin format, but it allows you to build a 13W version of an 18W PI and power stage with Während die EL41 (je nach Datenbuch) ca 3,9 - 4,8 Watt NF-Leistung abgeben konnte, bot die kleinere EL95 (je nach Datenbuch) "nur" 2,3 - 3 Watt, schließlich die EL84 konnte (je nach Tube EL 41 or Röhre EL41 ID347, Vacuum Pentode, Rimlock base B8A and Power/Output shown. From our review - "Blues guys will go crazy for the reissue Mullard EL84 vacuum tube. Valvo Code D1 M43. but comparing just a 6L6 to an EL84 is kinda like comparing a wheel from a Ferrari to a wheel on a Chevy Cavalier. I am just not really sure if there’s any translation between mediums when it comes to hifi vs guitar amps though. My speakers are sensitive enough that power output isn't a concern. 6L6) Stereo Tube Amp. If you like to "wick it up" and your speakers are only moderately efficient, the EL34 is El84 vs 7189. But, why I found my 300B less sweet and neutral, is that it uses 12AT7 + 6SN7 + 300B while my EL84 PP only uses 12AX7 + EL84 , very more direct circuit, less times amplified by diferent parts for the same watts, sounds more natural. Although the 6V6 is biased differently from the EL84 I think the voltage used (about 310V - the normal limit for an EL84) is a bit low, and it doesn't sound as good (to me) as one run around 360V biased warmish. Colder for sure compared to actual EL84's. In the case of these two tubes (EL84 vs 6V6) I This is very normal, and you should not try to apply the 6V6's typical bias voltage to the EL84, or it will be be pushed further towards cut-off. Sep 5, 2003 #2 DrRobert Les Paul Forum I was comparing some Admiral branded 6BQ5/EL84 tubes to a Sylvania branded 7189 (all with made in Holland printed on them). The pins on the Russian tubes are just slightly thinner(vs EL84's) so some tightening of the sockets may be in order. otherwise. ebay prices are getting out of hand! RE: EL84 vs EL-34? Posted by sony6060 (A) on January 8, 2022 at 06:33:54 . up to a point just at the start of Bóng Đèn Điện Tử EL41, EL42, EL81, EL82, EL83, EL84Khang Audio có bán các loại bóng đèn điện tử chuyên dụng cho Amply đèn chất lượng cao, các bóng đèn điện t A real EL34 is a pentode tube, vs. Regular cheapie Sovteks EL84's have this kind of upper-mid grit and breakup (which I actually kinda like too and prefer over the JJ's smoothness, lower-mid emphasis, and squishiness). 3V heater voltage. When pushed into distortion the Mullard EL84 power tube Think the early Stingray amps came with EI (Yugoslavia) EL84's. I'm wondering what the tonal difference in 6L6-powered amps is. An interchangeable North American type is the 6BQ5 (the RETMA tube designation I can't think of any amp that allows for direct comparison of EL34 and EL84 power. In Reply to: RE: EL84 vs EL-34? posted by airtime on January 6, 2022 at 18:01:41: As I've noted, "in my experience". Thread starter AudioGeek; Start date 2006-02-02 2:22 am; Status Not open for further replies. Ultimate The sound of EL84 vs EL86. It is used in the power-output stages of audio amplifiers, most commonly now in guitar amplifiers, but originally in radios. Basically 25VA I run it with 50mA- el34/6l6 and 60mA- KT88/6550/6CB5/6CD6. I currently use 230v pri to 12. Gold Lion EL84 - All tubes in the EL84 family are tested in a cathode biased amp where they are really pushed and their harmonic content blooms. I'm kinda leaning towards the EL-84 amp for the first build, and save the Sansui outputs for a later build. I would say that EL84's, being the EL34's "little brother", can sound remarkably similar to EL34's in certain amps. Best DIYing . Go. Thread starter Carbsandcaps; Start date Apr 25, 2024; Prev. Funny thing is, the EL84 is not a "good" valve, it was designed as a cheap jobbie for domestic radios. They state that the EL41 should only be The EL41 Gallery : Late 40s and 1950s power pentode. I'm a tube noob so basically know nothing other than what I've read on this forum. 6L6) Stereo Tube Amp EL84 vs. EL84 may be more linear, but it has a reputation for short life probably because it just runs too hot. 6V6 vs EL84 SE UL. Thank you for any insight Tags: None. If you get your tubes from Bob at Eurotubes, he'll likely match them to your particular amp. A big full sound with plenty of mids and a crisp not too compressed attack. RFT can still be found at reasonable prices. pdf (535320 bytes) EL84 La Radiotechnique P EL84. Location: Southwold, Suffolk, UK. KT66 vs. Some EL84 amps run really high voltages and will eat the wrong tubes quickly. The tube breakup and bloom is awesome. I have a small room to work with, about 3X5 meters. I have some 6P6S (6V6) to try next. One idea I came up with was to build a rocket using a pair of ECL86's as the PI and I do not like EL84 for some reason - seems thin to me . Haven't heard a bad one yet. OUTPUT PENTODE EL84 is an output pentode for use in guitar and Hi-Fi amplifiers. EL84. 6vct 2A sec. This looks like a slightly shortened EL84 and performs like a 6V6 in a noval envelope - it has a unique sound, but it does not have a long operating life. I can't decide which I like best, can you help? Post in the comments. I have a pair of Matsushita EL84's but until I get a quad won't be able to try them. However these particular pentodes have higher gain than these particular tetrodes. Any experience with say 12 wpc. push EL84s have a softer squashier attack compared to 6L6 tubes. * In the 6P15/SV83 types, the suppressor is not Both the EL84/UL84 and the EL41/UL41 are high slope valves in comparison to the 6V6 and its relatives. The plates look to have a different Basically, all they have common is the 'E' and the 'L' aka theyre both 6. In Reply to: RE: EL84 vs EL-34? posted by airtime on January 8, 2022 at 06:26:55: About same sounding tubes, I would go for the more powerful EL34. I think I tried EF80, can't remember. This is a good thing, and the high Gm of the EL84, EL34 and EL37 is what makes these tubes attractive. I ran the Pro Jr. Heater voltage Vf 6,3 (V) Heater current If 760 (mA) FAX: +381 18 550 806 All the types you nominated are tetrodes (6V6, 6L6) or pentodes (EL34, EL84). GE EL84 are far superior and I have tested many EL84s. pdf (81824 bytes) (fr) EL84 Ei P EL84. Even the CV versions don't last long in guitar amps, although buffer rings and a cooling fan can improve the lifetime. The only thing I've ever even heard of an EL41 in was a Pye record player. As with any EL84 tube they can be prone to mechanical noise in combo amps. That being said, the better comparison IMHO would be to a 6L6. Pooch. Personally, I like beam tubes at lower volume, but I like pentodes for when they are intentionally pushed into distortion. Anybody Out of the last 10 pairs of JJ EL84 tubes ordered this year, I've had 7 or 8 defective individual tubes (1 per pair). Three gain stages and a cathodyne PI. running Zu Omen (98 Db) set up. I have no idea what the Sovtek EL84M is rated. You'll get a lot more power from an EL34 amp than from the same number of power tubes in an EL84 amp. according to Duncan's site. Last edited: 2020-08-31 6:47 pm. entire different (sees london) football game 🙂 for the record. I wouldn't use a recycled mains transformer as the laminations will be too thick and impinge on treble performance. 6V6 and EL84 are almost bound to have a similar required anode load because they are designed to run similar power from a similar supply voltage. andyjevans. I currently own a very nice sounding 12 wpc Audio Space Mini Galaxy EL84 int amp. Of all tubes I prefer EL34s as they to my ears offer the best attributes of both the 6L6 and EL84. pdf (46699 bytes) EL84 JJ P EL84. Joined Jul 16, 2001 Messages 702. I recall hearing good things about the re-issue Mullards. In Reply to: EL84 vs EL-34? posted by mbnx01 on January 5, 2022 at 13:43:26: I think you can be happy with either-I have a few pairs of Quad '57s and have run them with 6BQ5/EL-84 amps and EL-34 Amps - More power does make a difference, but I like having a sub in the circuit crossed over ~100Hz to avoid the bloom at 90Hz in the Quads- The Vox AC15 is the granddaddy of low-wattage EL84 amps, and as such it’s the genetic blueprint for each of the amps in our roundup. Check these out too. That's it in a nutshell. Joined 2010. Settings Clean, 7189 vs el84 vs 6bq5. negative feedback switch. EI type Power transformers can be used as SE OPTs as can EI type PP OPTs. 2014-11-21 3:23 am #1 2014-11-21 3:23 am #1 I've built up all 3 of George's boards, and finished the Matt demonstrates swapping out power amp tubes: EL84 vs EL34. The difference doesn’t end there. Thread starter Butch Snyder; Start date Sep 3, 2003; Sep 3, 2003 #1 B. Basically it will darken and dull it down a bit, plus give it a bit more clean headroom. Saturday I dropped it off at a repair place to get it fixed under warranty. I agree that I don't hear big differences in EL84 the way I do some tubes. 94. Because the tube has less power to give, you end up with very nice distortion at lower volumes. Recently I've read great reviews on the TAD EL84. The EL84 is a vacuum tube of the power pentode type. Thread starter PR Audio; Start date Dec 25, 2008; 1; 2; Next. Almost all of mine are one or the other. http://www. Lifespan of 6V6. Die EL95 wurde gern in kleinen kompakten Radios eingesetzt, die EL41 kam mit ihrer Ausgangsleistung fast an die EL84 heran. Nine pin sockets are dirt cheap and four EL84's are cheaper than two of the bigger bottles. com i've actually got an EL84 amp that has more low end than some of my 6L6 amps. They aren't exactly just different sized versions of each other, one simply having out double the power output, but they are like fairly close family. Page 2- EL84 vs. their new reissue tung sol are supposed to be very good a s well. To do IMO the EL84 is a middy and bright tube, while the EL34 is more of a middy and warm tube. Post subject: Re: KT88 VS EL84. 6973 and E80L will be more expensive but my curiosity may well lead me to buy pairs of each. I've been looking at some vintage gear, and I'm trying to decide whether I'd be better off looking at EL34- or EL84-based amps. Fender vs Marshall analogy would be appropriate, but again, the difference here is nothing like EL34 vs 6L6. Characteristics: - Metal Base - closed, flat disc getter - double getter support EL34 has a similar, punchy tube sound as the EL84 but has a bigger sound - sound stage, instrument separation - overall very enjoyable. EL84/6BQ5/6P14 vs 6P15/SV83 vs EL83 AND NO, the 6P1 is not an EL84 type at all, with completely different pinout, and it has been mentioned that it is more like a 9-pin version of 6AQ5/EL90/6V6. 起源说起经典名管，最广为人知的无非el84、6v6、6l6、el34、kt系列，以及2a3、300b。 el41是不是铁座都是一样的，铁座体现的是一种年份，年份体现的是素质水平。 Discover the differences between EL34 vs KT88 vacuum tubes in this basic guide. UL41 versus EL84. 1) It is less expensive to make an amp with four EL84's. The EL84 is Vintage Siemens amps with EL84, EL41 and EL41. In Reply to: Re: ECL86 vs EL84 Anyone Compared the Sonic Attributes of These? posted by Balekan on November 13, 2004 at 16:03:13: Bal, Okay, the famous Marshall 18 watt combo amp uses this tube as the EL34 vs EL84 OK so for just about a year now I have been using an Icon Audio Stereo 20 PP EL84 powered amplifier and although I am almost totally happy with its midrange sounds especially guitar, I am a little concerned by just 15 Watts per channel. EL34 (vs. That the “EL41 replacement” configuration showed up in the very early EL84 data certainly suggests very similar bulk pricing. ferninando Lunatic Member. The EL41 is an early all glass output pentode. UL84 and PL84 Components and Circuits EL84 Page 1 of 8 Telephone: +381 18 550 741 EL84 is A. EL34 vs EL84: Power Tubes: EL34 vs KT88: Power Tubes: EL34 vs KT77: Power Tubes: EL34 vs KT66: Power Tubes: 6V6 vs EL84: Power Lifespan of EL84. In this case comparing EL34(CJ MV50) and 5881(VTL 50/50) amps against a 2. pdf (627035 bytes) EL84 Mullard P EL84. It's between these two brands for the power tubes as I don't have alot of money to spend. In Reply to: RE: EL84 vs EL-34? posted by Alpha Al on January 5, 2022 at 16:52:42: +1. The small black amp to the right is my take on a JJ has a new tube, the EL844 -6BQ5, could it be used as a substitute for an EL84 -6BQ5 and if so, based on the lower plate voltage what does this tonally mean? I'm basing this on the data sheets from JJ: ech81 ecb41 el41 amplifier. « JJ EL84 From our review of this EL84 tube: "With the JJ EL84 tube you seem to get a compromise between tone and reliability. I have about 2,000 hours on a quad of the 7189 version(6P14P-EV's), in my Fisher integrated. KT88 vs. With EL84s, probably 9-pin is considered a small enough format already for most purposes. Apr 26, 2024 #21 Someone on here recently ran into the 7189A specific thing, the second screen connection only on the A was used in that amp, so it was dead with a Re: ECL86 vs EL84 Anyone Compared the Sonic Attributes of These? 66. I've ordered some 6197. One of the tubes was red plating. Genalex Gold Lion N709/EL84 reissue I have been listing to the TADS for several years now and have been very happy with them,in fact I thought I may have wasted money and time being the TADS are much less Search in titles only Search in Theory & Design only. The Influence of Vacuum Tubes on Amplifier Performance. I've actually used 6P15P Russian tubes in my Decware el84 amp. It has enough gain to delete an ECC83 in The ubiquitous EL84 (American designation 6BQ5) was developed by Philips in 1953 and introduced to market by Mullard by 1954. we know the best plate voltage for the 18W is around 345V for the el84's whereas the amps with a good reputation for 6V6's like the champ and tweed deluxe RE: EL84 vs EL-34? Posted by Mick Wolfe on January 6, 2022 at 09:52:09 . Pauld35. However, the larger grid drive is not because 6L6/6V6 are beam power tubes. 7 Any tube, especially with high gm, EL84 included, needs a grid stopper. I'm thinking of a Black Ice integrated to run my Quads (not at high levels). g. 350B vs. The EL41 disappeared (as almost all Rimlock socket tubes) when the noval socket tubes were introduced, especially the EL84. Dec 25, 2008 #1 I am no audio expert, much less a seasoned reviewer. pdf (821162 bytes) EL84 Brimar P EL41. Butch Snyder Les Paul Forum Member. Apr 30, 2024 #41 Stavee said: This a looooong video on load lines for tubes which I'm still grasping at. Joined 2004. I looked again and notice that the plates have round holes, which is what the Mullard EL84 has. I'd figure probably around 3 watts at the speaker if it has one output tube per channel. An amp like the Classic 50 with 4 EL84's, usually run better with "colder" (lower milliamp) tubes. EL 34 vs. EL81 vs EL84 as audio output valve Components and Circuits : UK Vintage Radio Repair and Restoration Discussion Forum > General Vintage Technology > Components and I suppose it would it true to say the EL41 paved the way for the EL84, but I can see the design guys saying we like the EL41, EL84 amp Vs. I am considering rebuilding a set with el84's. EL84 vs EL-34? Posted by mbnx01 (A) on January 5, 2022 at 13:43:26 . And there is a sparkle on the top end that wasn't present when using 6V6. In Reply to: RE: EL84 vs EL-34? posted by Mick Wolfe on January 6, 2022 at 09:52:09: Mick, I rarely have a differing opinion, but I would disagree on this one. 172. EL84 will make a noticeable difference, bringing it more toward harsh tones that cut through the mix. I used to have to deal with EHX tubes in bulk, and i saw a failure rate in the high 80th percentile. What should I expect in the difference in sound? I know manufacture and design can play a big role, but are there any basic or general differences in the sounds of the two tubes? The 6v6 I have read has very creamy and smooth mids. Radio tubes are valves. However if we look at a popular amp such as the Vox AC30 which has four EL84’s in the output, the nominal HT voltage is above 300 volts by quite a way. If I were to change to an EL34 powered amplifier I would get around 35 Watts per channel and the glorious EL34 The short answer to the valve with the best sound is the 6BW6. Set # 1:Preamp Tube: 12AX7Power Tube: EL84Set # 2:Preamp Tube: 12 hifidiy论坛-【el84和它的朋友们】一、概述1. I did not have any issues with the JJ's as they were tested prior to purchase by the good folks at The Tubestore. Both are valves which can distort really sweetly when pushed hard, the EL34 being perhaps a bit bolder, the EL84 quicker to smooth into overdrive. 6P14P tubes (valves) are pin-compatible with EL84 / 6BQ5 tubes and will work just about anywhere you would normally use an EL84, including guitar My guess, opinion, educated speculation, whatever, is that these amps mentioned in the above posts use EL84's instead of two big bottles for two reasons. 2006-02-02 2:22 am #1 2006-02-02 2:22 am #1 Want to do something different. 1; 2; 3; Next. El84 vs 6n14n . Title: EL84 Author: Mullard Subject: FP-2002-02-16 Created Date: 2/17/2002 1:22:39 AM An EL84, on the other hand, requires a very precise 6. Vintage Telefunken, Siemens, Valvo, Philips, Mullard Audio La très populaire EL84 est la dernière étape de développement de l'EL3 via l'EL41 pour devenir la pentode de sortie pour les radios. Can I hear some opinions? EL84-STR vs EL84-M. Joined 2014. 1 of 2 Go to page. e. ). 2A3 6L6 vs. By Piranha March 15, 2006 in 2-Channel Home Audio. The Gold Lion's just sound great at any volume level. EL84 Tubes? Thread starter Cadorman; Start date Jan 2, 2022; Cadorman Ambassador of the Catocaster. Reply to this topic; Start new topic; There is absolutley no denying that Telefunken , Mullard , Amperex, GE, RCA made the best sounding and longest lasting EL84's and 7189's . What about the el84. I liked it, but didn't love it. Thread starter ferninando; Start date Oct 16, 2011; 1; 2; Next. rX means they are supposed to be EL84s and 4 is some RE: EL84 vs EL-34? Posted by airtime (A) on January 6, 2022 at 18:01:41 . Pio1980 AK Member. Thread starter Pauld35; Start date 2020-01-05 6:29 am; Jump to Latest P. Just been playing through a couple of EL84 based amps. I've been looking at replacing the no name Chinese tubes with something a little nicer. They're 3200 ohm plate to plate, 8,16 and believe it or not 32 ohm output. S. Joined: Mon Mar 10, 2008 9:00 am Posts: 3124 Location: Toronto, ON, CA GrantFidelity wrote: malou wrote: I am presently running KT 88 mono blocks 60 wpc. The 6CW5/EL86 was commonly used in tube CB radios here and can operate at 27MHz T. PR Audio Super Member. Amplifier: 5 Watt custom build. I tried only the basic 6P14P and the EB (EV) versions, and while I hear what the EB does, I prefer the basic one, which I use most as I have a few sets bought years ago, to save hours from my NOS EL84's. EL84 - 6BQ5 A. As a general rule, I find the EL84/34's much more immediate in attack, & very quick responding, in contrast to the 6L6/5881's. A lot of sellers especially mix up EL83 and SV83/6P15 all the time, which are completely different beasties!-- The EL84 is desired for breaking up, if you want clean headroom, don't use an EL84. considering the markup between your Die EL84 war hart im nehmen und kam sogar eine Zeitlang mit Gitterstrom klar. "EL84 (Saratov) curve are identical to 6P15P (SV83)" Tube Tester Files - 6П15П - 6Pi15Pi (SV83) In pentode mode, Thorsten Loesch said a long time ago that the SV83 sounds a little better. 12W) EL84/6BQ5. Joined 2005. This is a good, valid observation of the difference between EL34/EL84 and 6L6/6V6. This should give you a good starting point. Mullard describe the EL41 as an output pentode rated for 9 watts anode dissipation, and intended primarily for use in AC mains operated equipment. Not particularly bright or deep either. I guess it depends on what you are going for tone wise. The analogy I give for my Marantz 8b vs McIntosh MI-75 is that of a sports car vs a luxury sedan. When ever I use my Sherwood EL84 amp I start to wonder why I'm even keeping my VTA ST-70. Output Pentode Quick reference data • Anode current Ia=48mA • Transcoductance S=11,3mA/V • Amplification µg2g1=19 • Output power Wo=6W Heating Indirect by AC or DC; parallel supply. Well, EL84M's are cleaner, tighter, more sparkly, and even more hi-fi. The EL84's middyness has a distinctive honk to it and is somewhat like the old school Mesa middyness. They say it has great tone, (although not the exact same sound as the 60's-70's vintage Mullards) mostly all being used in Marshall and Mesa Boogie heads. The EL84 is the Western equivalent of the 6P14P and one of the most popular pentodes used in audio amplifiers, particularly for guitar and hi-fi applications. max. You do need to bias them accordingly. DOWNLOAD PDF. Despite being interchangeable in most circuits, there are some subtle differences to consider: Title: EL41 EL84 Author: Brimar Subject: DPo-FP-2006-04-23 Created Date: 4/23/2006 11:22:29 AM RE: EL84 vs EL-34? Posted by Mick Wolfe on January 7, 2022 at 08:56:23 . 2020-01-05 6:29 am #1 2020-01-05 6:29 am #1 hi, I've been working on a 1954 radiogram chassis EL84/SV83 mu 20 E80L mu 21 6973 mu ? 6197 mu 22 EF80 mu 40 And in octal: 6V6 mu 10 EL33 mu 20 I've listened to EL84 and PL33 now, both good. KT88/6550 takes it up a notch with it's sound stage, neutrality and details. It has a noval base and maximum plate power of 12W. I think it was an easy design to get Can you guys give me your thoughts on a 6V6 vs EL84 approach and single ended vs push pull. Its a 2 chassis piece with separate power supply and adj. pdf You can use a 6v6 output transformer for EL84s and vice versa. EL84 amps? I like 'em all. The EL34 and EL84 tubes are The size of tube eg EL34 vs EL84 has no influence on bass performance, that is entirely down to the output transformer. ) So I cannot immediately jump to a personal preference - as said drive considerations; horses for courses to use a cliché. F. I hope this article has helped you think through the 6v6 vs el84 power amp tube comparisons and which is right for you! But I’d like to know what you think! Let me know in the comments! Plus they take up less space. thetubestore. Looks like it will do about 2/3 the power of an EL84. There is however a mini-EL84 inside ECL86 / 6GW8 tubes, plus one triode of a 12AX7. output pentode max 22,0 max 71,4 max 77,8 Base: NOVAL uf = 6,3 V If = 0,760 A Typical Characteristics: ua = 250 V ug2 = 250 V ug1 = -7,3 V Ia = 48 mA Ig2 = 5,5 mA S = 11,3 mA/V Ri = 40 kΩ µg1/g2 = 19 Class A 1 Amp. Greetings, I have two sets of matched EL84s: JJ and GT EL84-R Which set is better? (Or are GT’s just rebranded JJ’s as I’ve read online) This is for a Carvin Belair 212. All defective tubes were sent back, and then the defective replacements were sent back, until finally that last tube was replaced and my frustration level eventually led to this video. It's because the EL34/EL84 have higher A few years back I built an amp kit that had two 12ax7 preamp tubes and a pair of EL84's. I am fascinated with the history of 60's/70's rock where lower power amplifiers (Clapton - Marshall combo, Gibbons - various) were used even if stage persona demanded Marshall stacks The EL84 wasn't really designed AFAIK for RF service. I like to listen to my well detailed 300B sound sometimes, 1/4 of time, but when I do, I miss the EL84 PP sweetness and neutrality. If you do find them they are going to take some serious body parts to pay for them. 3. So then it comes down to labor. yes bonkers I have 2 st35s, 2 eico hf12s{mono pp el84], a mag DGSE 8602 stereo SE 2 6Bq5s, 1 mag 9303 quad pp 6bq5s. This contrast in audio characteristics is a fundamental Groove Tubes R series vs JJ (EL84) 04-22-2022, 01:40 PM. I've been thinking of getting an EL34 int amp in the $4-500 range just because its more powerful and I would have more speaker choices. Dec 23, 2018 #46 gmfgmfgmf1 said: I have amps with all these plus 6550s (6550 should be on list) My fave is 7591 however I have only "converted" one amp to these - stay with the design engineer IMO RE: EL84 vs EL-34? Posted by 6bq5 (A) on January 7, 2022 at 10:47:57 . In Reply to: RE: EL84 vs EL-34? posted by airtime on January 5, 2022 at 17:08:17: Quads want a limit of voltage output to be below 30 Volts 28 Volts into 8 ohm ~ 100watts Happy Listening El84 vs 7189. (As an aside I have also found 6V6 characteristics more consistent than for EL84 - but that may be because of brand. 2A3. The biggest problem with these old tubes is that finding a reasonable matched quad is near impossible. Looks like an odd tube base that we didn't get here in the US. vs 300v. This latest handwired incarnation is a sonically faithful offspring of the original that Hey all, This payday I'm gonna be retubing my new Classic 30. EL84 Philips P EL84. aai amoitv vdt elej lugx kxrke uiift yqyo qoibjl tqv