Kt77 vs 6ca7. audioasylum.
Kt77 vs 6ca7. M Electro Harmonix 6CA7 v Genalex Gold Lion KT77 vacuum tubes sound comparison on Reisong A10 Tubero 32 subscribers Subscribed May 31, 2021 · The KT77 and the EH 6CA7 were both too bright in my system and the TS EL34 seemed to be a little weak in the bass. My impressions are using Manley Snapper, which is a forward sounding amp. They’re the best I’ve heard and owned among EL34/6CA7/KT77 family and I continue to use them in a Synthesis Flame integrated, and a Unison Research S6 integrated. Next will be Tung Sol 34 B's. In the KT77, the suppressor grid (g3) is connected internally to the cathode at pin 8 and pin 1 is open. Feb 11, 2019 · I used the EH 6CA7 big bottles in my amp and thought they were fine tubes but they were totally outclassed by the GL KT77. Plus any fairly close octal equivalents like KT66, KT77, KT120, KT150 etc. Recommended 70% plate dissipation is only a guideline, high gain amps likes cold bias while vintage voiced talks with hotter bias better. Guitar folks love 'em for their break up characteristics and "crunch Mar 13, 2009 · 6CA7/EL34 is the same tube, a beam pentode with 3 grids. Our tubes are always tested, matched and guaranteed. The real KT77 was closer to the Sylvania 6CA7 than the EL34. Explore the differences between EL34 vs KT77 vacuum tubes. If you want a neutral tube, go with something that is based on Telefunken EL34 and the 6CA7 are identical and often have both designations on the same tube/bottle. KT77's are more about power and the bottom end. EL34 has a lower bias of 0. No way of knowing which one you would like best. html#tubes>FAQ</a> Jun 1, 2005 · 6CA7's and true KT77's are beam tetrodes. Completely different construction though, beam tetrode vs pentode. Dec 25, 2018 · AFAIK, Marshall 2204 run at ~400V. 40 to 0. Doesn't matter what music it's used with or "types of tones" either. Learn how these components impact amp performance & which one is right for your setup Jul 7, 2021 · KT77’s. Quant à New-Sensor, sa politique commerciale a très probablement participé à la disparition de Svetlana / St Pétersbourg, ce qui est fort regrettable. Yes sir you are correct on all counts. Sep 14, 2024 · Has anyone measured the new production EL34, 6CA7 and KT77 tubes? Mainly I'm taking a shot in the dark hoping the tubes are great for HiFi use. May 31, 2019 · Then, once the 6CA7 began to grow in popularity, England responded with the KT77 (Fig 2). The 6CA7 is the American variant of the EL34. Their main difference is that kt77 tubes have more headroom, detailed highs as well as bigger bottoms than the el34 tubes. Whereas EL34 has more pronounced mid-range sound production. Here you will find a Where as yes they kind of sound the same in a nut shell I can tell the differance between both jj and EH 6ca7 as compared to each companies el34 offerings. Curious if anyone running the SED Black Sables and are they worth the $$ Hbar Jun 1, 2017 · KT77 is very similar to the EL34 in terms of electrical characteristics. 450 volt DC level as KT77's. Apr 1, 2018 · With regard to KT77, they are often spoken of as a drop in replacement for EL34/6CA7, though Dynaco did not mention KT77 in the manual. Feb 4, 2017 · I've run most of the new production tubes in single ended and push-pull amps, and the 6CA7 is the best balanced and most flexible tube of the lot in the greatest circumstances. Oct 6, 2008 · The KT77 and E34L sounded great but I seem to have reliability issues with them in this particular amp. Genalex also now makes KT77's but they cost almost the same as the Genalex KT88's > $190-$200 a quad and IMHO are not worth it in an ST-70. Any strong opinions on these choices? I believe I said that here somewhere recently but just FYI proper biasing involves more than just recommended mA adjustment. com When Jon Esau of www. With gold plated grid wire and beautiful artwork, the KT77 brings power and headroom. Some measurements would be great. Altec 353A, and Fisher TA500. To me, the JJ tubes sounded a tad "cleaner", a little more "full" sounding, and just more musical though the EH tubes were not all that far behind in their performance. I asked Doug at Doug's tubes and he said the 6CA7 sounds more like crappy ass in compraison to the KT77's. The KT77 is another variant of the EL34 and can be used in equipment calling for the EL34. Apr 15, 2020 · The EL34/6CA7 has a slightly different pin out than the KT77. EL34 is cheaper and durable. mpl?audio/faq. 6CA7 should also work with that amp since they're a drop in replacement for el34 but i would still confirm with KSR beforehand to be safe. This tube was only produced Marconi-Osram Valve Co. Apr 24, 2011 · EL34 vs 6CA7 vs KT77 I am looking to do some tube rolling soon. 6CA7 is the american number while EL34 is the european number. Altec A, and Fisher TA Listed only members with posts. Tough choice. Mar 6, 2006 · Let the battle begin!Archived This topic is now archived and is closed to further replies. Matched, in stock and ready to ship! Order Now! Jan 21, 2010 · I'm looking for an answer to a question but would also like to see some dialog from people about their likes and dislikes and why. Audio Asylum - Tubes Asylum - Questions about tubes and gear that glows. Mar 8, 2011 · Re: 6CA7 vs KT77 vs EL34L sound clips. thetubestore. Indeed the EL34 data sheet has a single-ended condition for v on the plate and screen and Feb 3, 2017 · I'm about to re-enter the world of EL34 etc valves after a couple of years' absence. 6550 or KT88 are likely to sound more mushy than KT77 or 6CA7 at that voltage, since they were designed to run at higher voltage. kt77 tubes also are more dynamic in sound and suffer from Jan 25, 2023 · EL34 vs KT77 The KT77 has higher plate impedance (23k) compared to the EL34 (15k). About 3 months ago I ordered a pair of ShuGuang Treasure 6CA7-Z tubes and one was defective. See the differences of EL34 tubes from 1950s - 1970s Philips production in Blackburn (Mullard), Eindhoven (Philips) and Hamburg (Valvo). Sep 27, 2022 · KT77 produces outstanding sound with better clarity and extended headroom. Jul 20, 2019 · EL34 vs 6CA7: two power tubes that can cause a lot of confusion when purchasing replacements, because they’re very similar and are, in fact, replacements for one another. Nov 7, 2006 · With JJ KT77 however, the ability to "bring back" the more rich mids is less feasible (than it is to use EL34 and get a more clear midrange sound, or get deeper lows). Had a quad of them a few years ago and sounded excellent on my Marantz 8B. This is a comparison video of 4 different types of JJ power tubes. The bottle is larger on these tubes and they are generally considered to be the toughest of this type of tube. E Apr 7, 2019 · Plenty of threads around comparing these in guitar amps but not many for hifi. They have a bit more headroom and bottom end compared to an EL34. We have a large selection for you to choose from. About the same price. What's new New posts New media New media comments Latest activity. The EH 6CA7 has a slightly mid-scooped sound like a. I would probably go with the KT77 but have never directly compared them. Check out reviews of our popular audio tubes. Any suggestions or opinions on the EL34/6CA7/KT77 tube family is welcomed! EL34 / 6CA7 / KT77 Tube Reviews and Comparison Chart. EL34 | 6CA7 | EL34-II | E34L | E34LS | KT77 Vacuum Power Tubes. In this article, we are going to compare their differences as well as understand about their history. I prefer more detail than 6CA7EH, but they are forgiving and nicely balanced powerful sounding tube otherwise. If you want a neutral tube, go with something that is based on Telefunken Discover the differences between EL34, 6CA7, and KT77 tubes and purchase the right one for you. Fig 2 These tubes have taken quite a journey since their introduction. Standard Dec 24, 2011 · I really liked JJ 6CA7's as well when I tried them in my Orange. Nov 15, 2019 · J'ignorais que 6CA7 et KT77 étaient strictement équivalentes ; je croyais que la KT77 était une version européenne tardive aux spécifications légèrement supérieures. 6CA7 vs. All 4 of these tubes sound great in their own respect. . May 20, 2009 · You can also bias these up a little higher than EL34's at the same . KT77's tend to handle high voltage also, but are sonically more similar to true EL34's. I have never used KT77's, but have a lot of experience with EL34's. My favorite of the 6CA7 Fat Bottles are the Sylvanias. I did not use any pre or post produ Feb 15, 2019 · channel 3. One piece UK-6SN7. A tube has broken, and thinking of a new quartet I have heard that the kt77 have a similar sound improving the Jan 11, 2014 · EL34 vs KT77 vs 6CA7Thinking that I could dial-in more of a natural amp overdrive/ juuust starting to break-up sound at a lower volume than previous. EL34 Tubes are in stock and ready to ship! We stock the best EL34 tubes for amps on market today. Mar 8, 2006 · The KT77 is a EL34 with enhanced low end that is very tight and round and warm, the mid range is very smooth and thick, and the highs are much more extended and very sweet, not harsh at all, and tons of harmonics. 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 Feb 14, 2014 · Hello: So it has been a while since I read a recent update on your personel experience with modern made EL34 tubes for the older (original) Dyanco ST70 amps. 5881's =/= 6L6GC's, KT66's should be OK as a direct swap for 6L6GC's, and some 6CA7's aren't really 6CA7's, they're re-labelled EL34's. Even if you have a PrimaLuna which runs tubes really easy you need to know these can fail more often. Are EL34, 6CA7 and KT77 tubes all interchangeable as long as you bias your amp when replacing? What are the advantages and disadvantages of each type? Are there pitfa 6CA7 JJ Electronic JJ 6CA7 JJ Electronic 6CA7 is a beam power pentode with octal base. The addition of the KT77 is especially nifty. 40. Apr 24, 2011 · I am looking to do some tube rolling soon. The KT77 is in fact a tetrode, but with the same base and biasing as an EL34 tube so they can be substituted in any EL34 amp. I also have a Marshall 1960a which is quite good. Discover the differences between EL34, 6CA7, and KT77 tubes and purchase the right one for you. Jan 8, 2023 · I have replaced the 4 EH EL34's with a matched quad of JJ KT77's. Same as a 6CA7 is electrically like an EL34, but built like the KT77. The real 6CA7 tetrodes go for insane prices. So I've found JJ KT77 isn't a wise choice to use as a stock tube. Any suggestions or opinions on the EL34/6CA7/KT77 tube family is welcomed! mtb_ww 04-24-2011 1:49am 10 responses Add your response Expand all responses Collapse all responses Sort Discover the differences between EL34, 6CA7, and KT77 tubes and purchase the right one for you. <a href=http://www. (I run GL6GC/KT66 in the Fire Bottle SEP, Scott 296 x2, McIntosh MC240, MC30 x2, Pilot HF-56 x2. But that was before a really lonely holiday season and a couple of non-payers on Ebay had jammed up the works. There are beefier power transformers available from Triode USA and dynakitparts. True EL34's are pentodes. Mar 8, 2007 · I know KT77's can be used in substitution of EL34'sbut the others? and what are the tonal differences? Thank you. Tube Combo Guitar Amplifiers like the Vox Limited-Edition AC30 30W 2x12 Tube Guitar Combo Amp with Creamback Speakers and JJ Tubes at Musician's Friend. We carry all of the major brands in NOS, vintage and New Production vacuum tubes. Shop our great selection of EL34, 6CA7, E34L, KT77 vacuum tubes now. i liked either the 6CA7 or KT77 for the intro, then the EL34 for the heavy stuff. The RFT sounded closer to my Mullards than the C's but not enough to justify the additional cost. I think someone is trying to rip you off or fool you into thinking that the EL34 is more expensive than the 6CA7, wheras in fact, it is the same tube! EL34/6CA7/KT77 Tube RecommendationBut if you want more detail with minor low order harmonic distortion then maybe the GLs are worth a try. I'm currently using Russian 12AU7's in my preamp. Feb 1, 2017 · I have been using EH-6CA7 for 6 years on an ST70. However you did write in your OP, "For music, I like sharp and crisp top end, full rich bass, and smooth non forward Sep 8, 2012 · He does anyone have any experience with runnung either KT77 or 6CA7 tubes in the DSL100? I was thinking about getting a set of one or the other for my EL34 / KT77 / 6CA7 Popular in high powered audio and high end guitar amplifiers, characterized by greater distortion at a lower power compared to other power tubes. Tube EL 34 Amplifier Hifi Kt77 Vs 6ca7. Google data sheet for the tubes you are interested in and compare the data. com/cgi/d. The JJ KT77 and 6CA7 are direct EL34 replacements that won't risk overheating the OT. The 6CA7 is the tube I am really interested, but I haven't found too much info. Feb 11, 2019 · I know it depends on many factors but comparisons are most valuable. com offered a set of five EL34-type tubes for review (JJ KT77; JJ EL34 II; Svetlana EL34; Genalex Gold Lion KT77 and Mullard EL34) I jumped at the opportunity. 6CA7's can be interchanged with the EL34. ) Nov 25, 2019 · Bonjour à tous, Bonjour Francis, J'aurais une petite question à l'expert incontesté que tu es en tubes après la lecture du post D'Egeswald "EL34 / 6CA7 / KT77" Sep 4, 2024 · I'm looking for some sonic comparisons between these much-used octal outputs wired in triode. I'd go for the KT77 or EL34L because I like bite and growl, but I'm not sure I'd hear the difference in a live situation. They have the big round tone of the 6CA7’s with the aggression of an EL34, but not quite as aggressive as an EH EL34. Therefore, they will tend to sound similar to a 6550. A quad of EH 6CA7's goes for $80, a quad of Genalex KT77's for $200. The 6CA7 provides a typical American sound. on them in the 20th. Our EL34/6CA7/KT77 are hand selected and precision matched. The Tung-Sol 6550 is going to sound different. Different double getter (DD ring OO), base (metal big bakkelite brom or black base) or plate construction types with xf1 xf2 xf3 xf4 xf5 code. About a year ago I swapped the EL34 tubes out for 6CA7 valves and liked what I heard, over the past few months I have been contemplating changing the amplifier but Jul 24, 2024 · They sound very different from EL34's as well like an EL34, 6L6 and 6550 had a child. These are all generally drop-in subs for one another in the same amp, with a few small details about max grid resistor values. I added the 6550 in there since the 6CA7 has more bottom end than an EL34. 6550's and KT77 require 180k (or 150k) and EL34's/6CA7's require 220k to be able to bias adequately. Oct 28, 2009 · I just rolled JJ KT77's in. I agree with @chervokas - the new-production Genalex Gold Lion KT77 from New Sensor Corp in Russia are excellent. Dec 12, 2008 · So these are all EL34 types and an amp with EL34 based poweramp should take them with just a re-bias, right? But I'm interested in the differences in tone that these will produce. ) I prefer the “warm” sound of the 6L6 family. Jan 7, 2018 · Sylvania 5881 IME, 6CA7/EL34 can deliver excellent overall sound. The reissue Mullard EL34 is a wonderful tube, just a hint of midrange bump which would make it a good jazz tube. Visit us now! Kt77 Vs 6ca7 Supporting Membership. The triode, tetrode, and pentode are types of receiver tubes. Although the plate structure is different, these are electronically the same as the EL34. 6L6, I find scooped, but works great in my Mark V. Jul 7, 2021 · KT77’s. Sep 3, 2010 · by selloutrr » Fri Sep 03, 2010 3:51 pm the tube substition hand book is a nice reference for which tubes cross and substitute. Apr 25, 2014 · That said, I most likely going 6CA7 because they are the only tube I have found with deep lows, EL34 mids and smooth highs, yet are tight and punchy. I do mean just a "bit" more of all of these. And in terms of the midrange I guess rather that lush I would describe it as more dimensional, the sound had more depth and much improved tonal color and saturation with the KT77. Was going to order from eurotubes, for whatever reason I have this idea in my head that jj’s go well with EL34 and the 6CA7 are identical and often have both designations on the same tube/bottle. When I used KT77 in my Stereo 70, things definitely ran hotter, temperature-wise. KT77's will work in an EL34 amp but they can be difficult to bring into correct bias on EL34 amps. Cosmetically, the EL34's glass is a little bit shorter than the KT77, and it's a little bit fatter. Jun 9, 2007 · I had the KT77's once, i thought they kicked ass. audioasylum. Prior to trying the Shuguang Nature sound 6CA7s, my favorite current production EL34/6CA7 was the Electro harmonix 6CA7 fat bottle from Russia. Feb 21, 2014 · Hi All I have had it confirmed from the manufacturer of my Mastersound DuVenti EL 34 amplifier that I can use KT 77 valves. Im a tube roller I waste money to see what sounds good to my ear. I've heard mixed reviews on their EL34. Jan 2, 2017 · A real EL34 is a pentode tube, vs. Sep 1, 2014 · So apparently I can use EL34, 6CA7, KT77, KT66 type tubes for my new Push-Pull. He told me the EH 6CA7 was much better than the new EL34's. It's a bargain to at least try it. Typically, fat bottle 6CA7's can handle more voltage and have better low end. He recommends them without hesitation. Its kind of up in the air because just as the last person said they even sound Jan 11, 2014 · The tubes are indeed drop in replacements but you may need to replace the bias range resistor. Seems like KT77's are a winner. I currently running Winged "C" EL34s and like the sound overall. Also if you look at the screen current it's less than the EL34 by 5mA for the same operating point which would indicate the grids are aligned unlike a EL34 being a true pentode will have non grid alignment. i couldn't really tell the difference for the intro, though, until i loaded them all up and quickly switched from one to the other. Previous to that had EH 6CA7 fat bottles in. You can find amazing features at a higher price range in KT77. KT66 - 6L6GC - 5881 - 7027 (with mod) - 7581A/KT66 KT77 - 6CA7 - EL34 KT88 - 6550A EL34 - 6CA7 - 7D11 - 12E13 - KT77 - KT88 6L6 - 5881 Apr 5, 2017 · EH 6CA7 vs JJ KT77. What are people finding to be good, reliable EL34, 6CA7 or KT77 valves? I've had Winged C Svetlanas in the past, but I know that SED shut up shop a few years ago and have read that many Winged C EL34s currently f Jan 13, 2019 · JJ KT77 ($21. 이들 진공관은 서로 비슷하지만 다른 Jun 14, 2017 · Hi everyone If anyone has a amp that came with el34's tubes standard has anyone compared their standard fitment el34's with either or both the Psvanes and Sophia Electric el34's I would be very interested to hear their thoughts of how the various brands of el34's compared sq wise to each other. KT77 has a 0. In fact, they should both put out only ~20W at 400V -- same as EL34. Not as warm or romantic as a Mullard XF2 EL34 but with great dynamics and extension. My amps (Consonance Cyber 800 monos) currently have EH 6CA7 tubes and Dec 1, 2024 · Factory spec output tube is 6CA7 so either EL34 or KT77 may be used. We can assist you in selecting the best answer based on your objectives. We agreed that I’d throw a few of my own tubes, including the Tung-Sol EL34B and Shuguang 6CA7-Zs I purchased from thetubestore. 50 bias. What would be the differences between those 4 types? Jan 21, 2010 · School me on EL34 vs. I've had some poor experiences with JJ's (both construction and sound), so I never gave their KT77's more than a couiple of hours to convince me, but in that timespan they still managed to ruin the tubesockets, because they had an issue with pin-diameter at Nov 9, 2019 · From reading multiple articles, I've narrowed down to the Genelix Gold Lion KT77 (most expensive), Tungsol EL34, or the Electro-Harmonix 6CA7. Jun 1, 2021 · KT77 should be somewhere in the middle between 6l6 and el34 and are known for a bigger low end. Mar 23, 2022 · It's time to retube my 20th EL34 model and I was thinking of trying something a bit different. Not including the lower power octals like the 6V6 family which we know to be good - just those with dissipation of 18W or over EL34, 6CA7, KT77 진공관은 서로 호환이 가능한 진공관입니다. Currently I have a quad of 6CA7s rolled in. KT77 vs. Even more powerful than KT77, and very similar to 6L6 sound. What are the settings you are using on channel 3? Ricardo Cavazos R Odriguez and 36 others 37 reactions · 37 comments Primaluna Evo300 KT77 tube replacement issues Summarized by AI from the post below Sep 27, 2015 · The 6CA7 fat bottle uses beam tetrode construction. Jan 1, 2016 · Tim Smith from Wall Of Sound gives his perspective and provides a full review of 7 different EL34 / KT77 vacuum tubes for the purposes of home audio. Kt77 vs 6ca7 Lane: In your letter dated July 24, you requested a tariff classification ruling. 50 each): The KT77 is not actually an EL34, but rather a beam tetrode drop-in replacement (like the American 6CA7). Usually your manufacturer tuned the gear to a certain brand of these. Jul 24, 2015 · When I was searching for new tubes for my Pilot SA-260, I asked Jim McShame what he thought of the new tubes, specifically the EL34's and 6CA7's. 35 to 0. The KT77 has been called the Ultimate EL34, and it features an internal design that is similar to the 6CA7, but optimized for use in audio applications. com, which are considered a general upgrade. The basic plan at that stage being; To get some warmer, but not ultra-high gain tubes for the Mar 31, 2020 · A common tube replacement question is whether the kt77 tubes is going to be an improvement over the el34 tubes. Jul 4, 2018 · Spoke with Jim McShane a while back and he said that his customers have had great reliability from both the EH 6CA7 and GL KT77. It can be used in most EL34 amplifiers. Same time my Boogie Fillmore (vintage voiced Nov 1, 2020 · If there are no bias pots for the output tubes, then your amp is likely cathode biased, so you should be able to plug in an EL34, a KT77, or a 6CA7, all of which are usually considered interchangeable. 4 days ago · Review by Tim Smith Tubes supplied by www. Media New media New comments Search media. We would like to show you a description here but the site won’t allow us. I have not tried any of the new "Mullards". Feb 7, 2021 · EL34 vs. Now, with that out of the way, there is a fair amount of difference in how these tubes sound. by kwijabo » Tue Jun 11, 2013 9:42 pm great tune! yeah they all sounded good. The merchandise subject to this ruling is a triode, tetrode, and pentode. Discover the differences between EL34, 6CA7, and KT77 tubes and purchase the right one for you. My knowledge of specific tubes is rather limited, and of course there is much marketing hype around output tubes specifically. JJ KT77s were inexpensive and used experimentally. There is a differance just like there kt77 sounds differant and there all interchangable. Or, something different to what I had. The "C"s have good balance and a tubey sound but could be tweaked here or there. If you're replacing tubes yourself, it doesn't matter what type you get, without a bias job theyr'e NOT going to run properly. Looking at the spec sheets, they both have max dissipation of 25 watts I am assuming that this means the KT77's bias at the same levels (the recommended setting for the EL34's, is anywhere from 360 - 440 mv for the Jolida 3502 Discover the differences between EL34, 6CA7, and KT77 tubes and purchase the right one for you. ymmv with the Jolida kt77 Mini jubilee comb E34l vs kt77 vs 6ca7 Has anyone experimented with these three tubes in a mini jubilee? Getting ready to retube my el34 mini jubilee combo and I’m looking to add some low end and girth and overall awesomeness. The plate is also a fair bit longer than the KT77. Any recommendations for good cabinets to use with the Invader. com over the Dec 22, 2021 · How about the TS 6ca7’s And is there a real difference? El 34, kt77, 6ca7 So far all of the TS tubes I tried Were excellent Eh not so much Sep 19, 2019 · The KT77 is often described as a pentode because it shares the same pin configuration and bias as the EL34, but that’s inaccurate. They are the most aggressive sounding tube in the family IMO next to E34L and then KT77’s, particularly Gold Lions. Be careful with some of the other swaps though depending on your amp. Apr 10, 2011 · It seems that there are actually quite a bit more EL34/6CA7 brands to choose from today than say 10 years ago. Forums New posts Trending Search forums. I heard that the 6CA7 will lean more in the 6L6 direction, what about the KT77 then? So chime in and share your valua Dec 22, 2009 · When I still had EL34 hifi amps (Unison Research S6 and Primaluna Prologue 4), I liked EH 6CA7's best; better defined bass, bigger stage. (I run 6CA7/EL34 in Scott 272, Pilot SA-260, Fisher X-1000, and until recently I had a Scott 210F. KT77 By BAXANDALL January 21, 2010 in Electric Guitars Jun 10, 2013 · I hear the 6CA7 has some more bass, the KT77 is the most balanced one, and the EL34L has a bit more presence. You need to take the plate voltage and calculate it with aimed plate dissipation range. Anyone try the 6CA7's - thoughts, impressions? I'm also We would like to show you a description here but the site won’t allow us. Kt77 Vs 6ca7. jvczpk qx93f kdp8 eb ehk75n xqmez c3gf ue5x jojem 51v