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Sam Himelstein, PhD

Kt88 tubes

Biasing the power tubes in the Music Angel KT88 In red circles are power tube biasing pots. This applies especially to power tubes like EL34, 6550, KT88’s, etc. Most amps using 6550’s can also use the JJ KT88’s for a different sound. It has a strong detailed bass and smooth highs, with the mids slightly warm yet still detailed. the sig-x can be switched to 40w (using a tube rectifier), or to 100w (using a SS rectifier): both of the 2-power tubes are still in play in each of those 2 modes. Petersburg, Russia, and is designed to be a direct replacement for any KT88, KT90, KT99 or 6550. When it comes to tone, they do have a big impact. What's going on? I pulled it in the mean time, and can bias the new tube. Two tubes can be brand new in the original box, with one testing at [as an example] 6500 micromhos, the next one at 8600 micromhos. New & NOS power tubes from Mullard, Tung-Sol, Telefunken, Sino, GE, Telefunken  Every power tube is different. Both tubes would be considered "new" by the factory, and not defective. The used tubes may be in working or parts-only condition. Flippin' Sweet!! Wonderful, sweet throated British tubes from the legendary Marconi-Osram Valve Co. They hold their bias perfectly. – received by email: Psvane KT88-TII vs. Made in Russia. KT88 - Marconi-Osram Valve Co. Each set of power tubes will draw a different current (measured in milliamps), affecting how fast the signal gets passed through your amp. How you operate the tubes (push-pull, push-pull parallel, ultra-linear, class, B+, bias, operating points, etc. And they look really great !!! JUST ARRIVED! NOW AVAILABLE IN THE USA. Personally, I find the New Sensor Tung-Sol RI the best 6550 for guitar. The tubes are precision manufactured in a factory (a portion of the old Tesla tube factory) in Prague, Czech Republic which cranks out the parts and materials, and then final assembly and listening sessions with reference source materials take place in Switzerland. Today, there are a number of quality KT88 tubes available for audio and guitar applications. History of KT88. If you have a use for these KT88 tubes, I highly Since Eurotubes ONLY sells JJ tubes they have become experts on JJ tubes. Power tubes will be supplied in matched pairs or quads. Stunning definition, amazing details, cozy warmth, sweet clarity and a very well balanced harmonic spectrum, right out of box! The pric The SED KT88 is a glass envelope beam power tetrode and is manufactured at the SED Spb factory in St PEtersburg, Russia. Introduction. The mid range is there but it tends to be clinical sounding and less musical. We pay the factory to pre-test for us, and give us the top 50% of production. These premium quality tubes were made with gold plated pins and D getter at the late 50's in Holland. In general, the KT88 tube has a magical mid-range  TubeDepot carries a selection of 6550 / KT88 / KT90 Power Vacuum Tubes. Psvane HIFI UK Serie's KT88 tube is new version, it has the better cost effective in the history of Psvane. $3,167. 8 Jun 2019 KT90 and types and brands exist, and what you can do with the this tube. . Our tubes are always tested, matched and guaranteed. In the audio amplifier, the power can be 100W when it is used as push-pull class AB1 with double tubes, it can also be used in electronic voltage regulator circuit. We maintain a complete tube testing laboratory with three custom-made burn-in machines and two Tektronics 570 Tube Curve Tracers. Please Note: Telefunken Black Diamond tubes are sold singly. With the kit supplied JAN Philips 5751 drivers and Genalex - Gold Lion KT88 output tubes the sound was superb. KT88 (6550 equivalent) ORIGINAL NOS Genalex GOLD LION made in Great BritainMATCHED PAIR: New Old Stock, still in plastic, with data sheets, in the red, gold and white Gold Lion boxes. Positive Feedback ISSUE 76 november/december 2014 . Genalex KT88 Gold Lion is the recreation of the legendary Gold Lion KT88 produced in the1950s by GEC, dubbed the King of Power Tubes. Electro-Harmonix KT88 Vacuum Tube High power kinkless-tetrode for use in amplifiers such as the Marshall Major. Octal, IO) K8A, USA 1935 and Power/Output shown. The new KT88 features greatly enhanced sonic performance: Increased peak cathode emission from new cathode materials; Stable operation from extended processing and Power tubes, or output tubes, continue to amplify the signal sent from the preamp section so they can drive the speakers. The mighty KT88 is a lesser known tube to some  Class, Va, Vg2, Vg1, Ia, Ig2, Rk, Zout, Pout, THD, Notes. MESA® KT-88 STR 488 Duet (matched pair) The MESA® STR 488 is the premium KT-88 of choice for our all-tube Prodigy and Strategy Bass Amps. This provides incredible bass response without ever losing control. The transmitting tubes TT21 and TT22 have almost identical transfer characteristics to KT88 but a different pinout, and by virtue of their anode being connected to the top cap have a higher plate voltage rating (1. Powerful, balanced and detailed soundstage with full bass. fwiw: each of the sig-x 's 3-channels can be switched, individually, The JJ KT88’s also sound excellent in the Hot Rod 50, Soldano amps. I also own a set of Tung-Sol 6550,s but they are a little to warm for my taste. If cathode biased, you are probably fine. The JJ KT88 delivers a powerful 42 Watts with   Results 1 - 48 of 104 Factory Platinum Matched Quad Genalex Gold Lion KT88 tubes, BRAND NEW In Box ! $189. We also offer high quality and hard to find parts for DIY tube amplifier projects. KT88 is a low distortion, high output power tube developed specifically for audio. So they have a bit of a bite on the higher end of the sound spectrum. In 1957 Marconi-Osram Valve Co. Measured and audible results confirm these are outstanding tubes, revealing life, breath and soul previously unheard of from a KT88. f. The OBS2 OCTAL can be used with a variety of octal base power tubes such as KT66, KT77, 6L6GC, EL34, 6CA7, 6550, KT88 and KT90’s with preferred tubes being the KT77, EL34 and KT88’s which we feel offer the best sonic performance. They are big, fat, round and very dynamic. A. Incredible tube! These sound very much like the Gold Lion KT88 to me. The Svetlana KT88 is manufactured in the Svetlana factory in St. KT88 is a beam power tetreode, its anode limited dissipation power is 42W. This tube is a favorite of audiophiles. The JJ KT88 is an amazing tube! They are extremely thick and rich sounding with no loss of high end like the chinese made KT88’s. Brand: Genalex. Comparison review by Gary S. Positive Feedback Online Review: "The Sophia Coke Bottle KT88-ST's easily bested my modest collection of glass bottles. uk. About Groove Tubes GT-KT88-SV Exclusive GT design. Sino/Chinese Shuguang KT88 – Billington Gold Triple tested and matched. DIY Single-Ended (SE) KT88 Tube Amplifier. Find helpful customer reviews and review ratings for Matched Quad Shuguang Kt88-t Premium Vacuum Tube Nature Sound High-end Gift Box at Amazon. The figures given are for single ended use, but the valve is almost invariably used in push pull pairs. I did notice that the Sophia KT88 tubes sounded far better than my stock KT88 tubes. 1V bias. ****OUT OF STOCK****The Penta KT88SC are from the Chinese Shuguang factory and are among the finest current production KT88's available with excellent reliability, focused soundstage, wide linear frequency response, and tight focused low end. So heat it up slowly, pack it carefully, do not drive the amplifier in full distortion, just for the fun of it. The KT88 can be used interchangeably with its American rival, the 6550. The EH KT88 can deliver more power,  i have a vac phi 200 and I know there are better tubes than what is standard,I cant find any more of the original gold lion in the u. The Svetlana KT88 achieves superior sonic performance and improved reliability through high plate dissipation rating, close manufacturing specification tolerances and thorough processing. Hi Guys I recently emailed a tube vendor with the question as to wether i could use 6550's or kt 88's in these 2 guitar amps I am building. These are excellent sounding KT-88 from China-GUI GUANG at an EXCELLENT price! Just $69. Radio tubes are valves. Read honest and unbiased product reviews from our users. It is worth every penny I paid for it. Over 90% of Amplifiers are push pull, and push pull amplifier does not 2nd harmonic and off course does not get 2nd 4th, 6th harmonic vs SE has 2nd, 4th, 6th harmonic. If fixed bias, double check your bias when it is warmed up. With smooth low end response and crisp highs, the audio performance of this KT88 is the new standard. E. com FREE DELIVERY possible on eligible purchases Shop our great selection of KT88, 6550, KT90, KT120, KT150, vacuum tubes now. In fact, a friend give me a spare matched quad of NOS (plain old) Gold Lion tubes + the needed output transformers so . Gold pins. Limited Quanity Available, New Old Stock , No longer available for Export, (Early 2000's), 90 Day Warranty through RF Parts Company. They come out The EAT KT88S are Quite Possibly the Finest Tubes Ever Made . JJ’s rugged construction of this tube offers high reliability without any compromise to the sound. I used this KT88 quad for about 150 hours, then I sold my amplifier. Genalex KT88 Gold Lion Matched Quad tubes are matched for both static current and dynamic gain for the ultimate balanced push pull performance. The parts count is low, but the sound produced  Chinese KT88 Vacuum Tubes $35. $12. I don't like the gold plated bling on the Psvane, but whatever. com This patented Sophia Electric coke-bottle KT88-ST (long life version) tube has the most refined sounding with best high frequency extension, a cure for the dark sounding KT88 amplifiers. It is very musical and with a frequency range balanced from top to bottom. Matched to perfection within 1-3mA. Buy low price, high quality kt88 tube with worldwide shipping on AliExpress. 17 Dec 2013 Hello folks. Just order the quantity you need. We carry all of the major brands in NOS, vintage and New Production vacuum tubes. When saturated the harmonics are rich and dynamic. The EAT KT88S are Quite Possibly the Finest Tubes Ever Made . A very soft start for the tubes so they should last a long time. beam pentode Base: OCTAL Uf = 6,3 V If = 1,6 a Typical Characteristics: U a = 250 V U g2 = 250 V I a = 140 ma I g2 = max. Warning: 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. How to test KT88 tubes (Last updated: 14-Mär-2017 17:41) The KT88 tubes is a curious tube. Tube Testing Equipment Why We Don't Sell Certain Brands Filter by All 300B / 845 / VT4C & Other Triodes 6550 / KT88 / KT120 / KT150 6BQ5 / EL84 / 7189 6L6GC / KT66 / 5881 6V6GT Types EL34 / 6CA7 / KT77 Misc. The KT-88 produces a more robust powerful sound especially at the extremes of the frequency spectrum. The KT-88 is simply a bigger sounding tube and it will rock you, its just not going to be as polite sounding as the EL-34. The Genalex KT88 is made in Russia to exacting standards, the new Genalex Gold Lion KT88 is a true echo of the past. it, thetubestore. The imaging and soundstage is incredible. Therefore, we proudly announce and present the very best of all KT88 tubes. That means they are single channel and two kits will be needed for stereo operation. 0, B+ = 560V. The KT88 audio tube is considered to be one of the best sounding power tubes for hifi tube audio amplifiers. I really like the sound of the KT88 tube (and as you will see, the Sophia Electric KT88-ST). It is intended for audio frequency amplification and close manufacturing specification tolerances and improved processing ensure reliability and superior sonic performance. KT88 vacuum tubes - Made in Russia :) KT88 tubes at McIntosh MC2301 tube power amplifier. I do not trust the Chinese people when it comes to specifying transformers. KT88 is similar with CV5220 and 6550,they can be replaced by each other. Nobody pays attention to your tube purchase like Uncle Kevvy. This tube has solid lows with warm bright mids and shimmery highs. Built to the highest degree of perfection, the EAT KT88s are uncompromisingly excellent in every aspect of vacuum tube performance. Every power tube is different. The U280SC being a push pull design and the ASL single ended. Mullard KT-88 Before buying any power tubes you need to know this: Upscale Audio pays more for our tubes than other companies. How good/evil the tubes sound in the end depend entirely on the designer. They come out KT88 Tube Power Amplifier Class A Single Ended Valve Triode Amplifier has not same tone with Push Psu Amplifier. introduced the KT88 in 1957, and its Genalex Gold Lion KT88 became known as "King of Power Tubes. To get the best result use Genalex - Gold Lion KT88 matched quad tubes available in the shop Audiokit. Tube compliment in the photos is a Sovtek 6N1P in the driver position and a pair of matched Electro-Harmonix KT88EH in the output positions. Other than that, you can probably drop a KT88 in for a circuit designed for EL34 (though not necessarily vice versa). This is the highest-output power tube in the 6550/KT88 family, with special heat dissipation wings on the plate that let it reach the same power specs as the original Gold Lion KT88 of the '60s. Division St. Shop our great selection of KT88, 6550, KT90, KT120, KT150, vacuum tubes now. Notes: The above examples of possible combinations are to help you narrow down the choices of transformers for your favorite tube types. This applies especially to power tubes like EL34, 6550, KT88's, etc. Basically any amp using 6550’s can use the JJ KT88’s. 99 USD. It it tricky to set bias because one tube adjustment affect the other from the pair. com. 7, 2x460, 9000, 50, 3. has reissued the famed Genalex Gold Lion KT88. Tube KT 88 or Röhre KT88 ID19153, Beam Power Tube, Octal (Int. I do play clean, so for the THD I only use the 6550 or KT88. Made in Russia The JJ KT88 is a beam output tube with a power output potential of 42 watts. AB1, 552, 300, -34. 25 kilovolt) and a higher power output capability of 200 watts in class AB1 push–pull. co. Power tube distortion exists and is a great thing. Find helpful customer reviews and review ratings for Electro-Harmonix KT88 Vacuum Tube, Matched Quad at Amazon. In other words, it deals with the output transformer, as well as speaker. It's a more wide open tube than the Tung-Sol RI 6550. KT88. 7, 4500  Results 1 - 7 of 7 Sovtek 6550WE, Sylvania 6550, GE 6550A, Genalex Gold Lion KT88, Ei KT90, Tung-Sol KT120 tubes in stock now. All of these were KT88's. Run in class AB1 push/pull, a pair of KT88's are capable of producing 100 watts at 2. 99. SED, one of the oldest current manufacturers of vacuum tubes, has a reputation as the world leader in vacuum tube production. The JJ EL84 nails the classic sound of this tube. Product Review - A Comparison of 6550 and KT-88 Power Tubes - June, 2002 Jason Serinus. I had to change my EQ settings slightly to get the tone I wanted. ) will change optimum plate to plate load impedance. My Favorite Tubes and Their Substitutes by Robert H. KT88 power tube reissue of Genalex Gold Lion. In using one brand of tubes I found that the signature sound altered something in the playback, either dimension, more bass or extended highs. Two tubes can be brand new in the original box, with one testing at [as an example] 6500 micro ohms, the next one at 8600 micro ohms. Maybe the circuitry in the M100SE and Ella are different enough to where KT88s sound like tubes in my amp, and like solid state in the Ella, or maybe it has to do with our choices of preamp and driver tubes. On the one hand, we always told not so mistreat a tube. I'm getting to the stage where I'll have to replace the KT88 output tubes on my amps - Antique Sound Lab Hurricanes, 16 tubes in all (!) but I think I'd better get 18 or 20 to keep some spares, so I don't want to consider anything "exotically" priced. These tubes are one of the very best in the E88CC / 6922 family and getting rare and rare. KT88 labelled G. www. " Our Preferred Series KT88 tube is a versatile high quality tube. What they sound like in different amps, tube substitutions and all. Both of my tube amplifiers are designed with the venerable KT88 power tube. The KT88 also can handle larger plate voltages, up to 800 volts. Can be used in place of 6550 for a more "round" bass signature. KT88MP-SVET Audio Tube, Matched Pair, 6550 / KT88, MFR: Svetlana. Questions about Guitar Amp Tubes? Sweetwater's Sales Engineers are regarded as the most experienced and knowledgeable professionals in the music industry, with extensive music backgrounds and intense training on the latest products and technologies. Shugang Treasure KT88-Z vs. ) i love my two kt88 amps: fryette deliverance 120, & the fryette sig-x. The response is very smooth, there is plenty of detail and that wonderful warm tube sound. This week we're going to talk a bit about an oft overlooked power tube , the KT88. We carefully hand select matching 4 tubes to make a quad. As a poster above said, the New Sensor GEC RI KT88 is a nice tube. amplifier. Power Tubes NOS Tubes PrimaLuna Brand Tubes The Gold Lion KT88's I am using now sound absolutely sublime, have been completely reliable with nearly 1800 hours on them at this time, and 16 Gold Lion KT88 tubes cost just over $900. Overall a great KT88 tube for orchestral, opera, and jazz music. Has anyone had this  26 May 2017 Vacuum Tube - KT88, JJ Electronics - A sonically faithful reproduction of the original tubes with a robust construction encased in a thick glass  29 Oct 2008 I tried the amp with Electro-Harmonix KT88 tubes. Use of these parameters shall be entirely at the user's own risk. This tube can replace any EL84 or 6BQ5 tube. After extensive research and engineering, New Sensor Corp. So now this quad is available for the next lucky user. The soundstage is wide and the images are solid. In general, the KT88 tube has a magical mid-range similar to the smaller EL34 tube, but with low and high end extremes that reach much further. The JJ KT88’s also sound excellent in the Hot Rod 50, Soldano amps. (*)These specifications are provided 'as-is', with no warranty of any kind. They are supposedly high quality Shuguang made tubes, so likely the good old Mullard copy sound but without the fireworks. Using the EH KT88 tubes has been a mixed situation. Upscale Audio tubes will last longer; period. This Class-A Push-Pull Tube Power Amplifier uses a Pair of Push-Pull Class A, Ultra Linear Mono Block Tube Amplifiers that can be used with several different vacuum tubes including KT77 / 6L6GC / KT88 with a 12SL7 driver and 6NO30 tubes. g. Thanks to NewSensor  Only at Sweetwater! ✅ Bulk Pricing and ✅ 0% Financing for your Genalex Gold Lion KT88 Power Tubes Matched Duet! These specifications are provided 'as-is', with no warranty of any kind. 0, 2x60, 2x1. Among my first equipment reviews for this website was an evaluation of the Bruce Moore Dual 70 tubed power amp. 95 shipping. The Genalex Gold Lion KT88 re-issue is the first of several tubes tubes to come from the Genalex – Gold Lion brand. EAT reputably manufacture some of the world’s best 300B, KT88, ECC803 & EC88 audio tubes. Awesome power and tone. The setting is done AFTER the mods are finished. (Genalex) introduced the "King of Power Tubes", the legendary Gold Lion KT88. This tube became the heart and soul of such classics as the Dynaco Mark III, McIntosh MC275, and Marshall Major. It can also be used in 6550 amplifiers. f. Burned-in and matched tubes from Quicksilver will give you better performance than tubes purchased from vacuum tube brokers. This results from superior material purity we selected for its design, the extended factory burn-in and our rigid testing here in Germany. These tubes are built to last, and sound amazing. Sep 17, 2013 · Our Preferred Series KT88 tube is a versatile high quality tube. Power tube. Mullard tubes are made in the Xpo-Pul factory (also known as Reflektor) in Saratov, Russia. Some of the JJ tubes, including JJ KT88's are more "flexible" than other tubes and will work in amps where tubes from other manufacturer's of the same category won't, just a re-bias. China Kt88 Tube, China Kt88 Tube Suppliers and Manufacturers Directory - Source a Large Selection of Kt88 Tube Products at carbon fiber tube ,tube packaging ,rectangular steel tube from China Alibaba. " The KT88 is a larger version of the KT66 that features higher power and very low distortion. New & NOS power tubes from Mullard, Tung-Sol, Telefunken, Sino, GE, Telefunken & more! Our Preferred Series KT88 tube is a versatile high quality tube. Consonance Cyber 880I KT88 Tube Intergrated Amplifier HIAI Power Amplifier. My 1st tube amp was a Sonic Frontiers SFS 80 And i ran Gen 2 EI KT90's,JJ KT88's and SED winged C 6550's. The EAT KT88 has a designed maximum anode dissipation rating of 35W and is recommended for use in the output stage of an a. Mar 22, 2013 · TAD: the KT88-STR have exceptional stability in electrical specs. 's Genalex production line. With stringent quality control and the best raw materials, SED offers the ultimate sound to musicians and audiophiles alike. Tube Data Sheet Locator. 7 ma U g1 = -15 V I also like the Chinese KT88 for their sound but quality has been spotty to say the least. KT88 GENALEX EQUIVALENT = GEC TT21 The TT21 is a GEC transmitting BEAM TETRODE that looks just like a KT88 with a top cap connection. F. New & NOS power tubes from Mullard, Tung-Sol, Telefunken, Sino, GE, Telefunken & more! The SED tubes in general I find a kind of lesser GE's. I prefer my M-150 monoblocks for their KT88 sound over the Cronus Magnum with the KT-120 power tubes. A brand new addition to our KT88 offering with a 'blue' twist! This KT88-Z CB is another step of progress over current high end KT88 tubes on the market. This tube became the heart and soul of such  Buy the Genalex KT88 Tube. I had been using Harma 5881 which came with my Leben SC 600. The Electro-Harmonix KT88 tubes are very tinny. The photos below are of Bernardo's DIY Single-Ended KT88 Tube Amplifier following Mikael Abdellah's schematic. The KT88 is a beam tetrode/kinkless tetrode (hence "KT") vacuum tube for audio amplification. 6L6 by RCA, was one of the very first power beam tetrodes and arguably the most successful one in history, spawning countless derivatives (including transmitting versions of the tube: 807 and 1625). KT88 Tubes. Chinese Shuguang KT88-98. Pairing: If you need to replace more than one vacuum tube, consider pairs that have been match tested for compatibility. Title: KT88 Author: M-O Valve Subject: JA-FP-2000-10-01 Created Date: 10/1/2000 7:35:29 PM KT88 Tube Power Amplifier Class A Single Ended Valve Triode Amplifier has not same tone with Push Psu Amplifier. The a  The KT88 is one of the few classic audio output valves. Features a gold-plated grid, new tri-plate anode, and single-piece beam forming electrode. Tech stuff aside, the KT88 is a gorgeous sounding tube. Jul 03, 2012 · The Shuguang Treasure KT88 and its “sister” tubes, the Psvane KT88, and the Fuller KT88 (not the Full Music graphite plate KT88; that is another review!) … these are all the same great KT88 tube and they are really the top of the field of KT88s on the market. I can't get a bias reading on one of my kt88's, but it still works. Reissue of the classic tube. " The Shuguang KT88-98 has a very open soundstage. And the JJ,s dont have the mids that the EH have but are comprable in highs and lows. The brand new, hand-made KR Audio KT88 has thoroughly convinced us. • Direct replacement for any 6550 types • Excellent replacement output valve for the Marshall Major, retains the original sound • Equally well suited Sovtek tubes -- great audio can exist in a vacuum Whether you like your sound dirty or clean, Sovtek tubes deliver! Sovtek military-grade vacuum tubes are manufactured in Saratov, Russia, and are well known for their range, from warm and broad to tight and overdriven. AB1, 521, 300, 2x64, 2x1 . The rigorous quality control delivers a dependable tube to withstand higher plate voltages. Psvane HiFi series 805, Psvane 805A-T, TJ Full Music, and Sophia Electric, these (ACME 805) tubes changed the least over their recommended break-in period. i love my two kt88 amps: fryette deliverance 120, & the fryette sig-x. Jan 17, 2016 · Psvane KT 88 T 11 matched quad set. After design of layout I ordered the necessary parts. On sale is one matching pair of Amperex 6922 vacuum tube. KT88's are not big bottled EL34's, they are a different type of tube (tetrode) than EL34 (6CA7) (pentode). Genalex Gold Lion KT88 vacuum tube. Genalex Gold Lion KT88. Production of SED glass tubes ceased in 2012. KT88's deliver more power and headroom than EL34's or 6L6's, that is the main reason. TubeDepot carries a selection of 6550 / KT88 / KT90 Power Vacuum Tubes. Power tubes, or output tubes, continue to amplify the signal sent from the preamp section so they can drive the speakers. We have even run a quad of the KT88’s in a few “Evil Twins” and it is fat! If you want to add some real thunder to your old Ampeg SVT then the JJ KT88’s are the tube. Nov 04, 2019 · I did not notice drastic changes in sound after the first 15 to 20 hours of run-in. This electrical spec enables to design powerful amplifiers without parallel connection. The KT88-STr is the only KT88 on market with consistently low Ig1 200nA at 500V Ua and Ug2 operating. Both tubes are coded 7L4 8I 40H. 00. JungSon V-32 hifi pure tube KT88 Intergrated Amplifier. It has a strong detailed bass and smooth highs, with the Nov 13, 2018 · At the beginning of the year, I found this interesting scheme of tube amplifiers on a forum and decided to make it. I love kt 88,s and I can attest that EH and jj,s are going to be hard to beat not to say it cant be done but really for the money diffrence there are no better tubes (kt88) out there. Buy Valve Art KT88 Vacuum Tube, Matched Quad: Tubes - Amazon. 11 USD $2,595. KT88 Quad vacuum tubes are highly sought-after tubes with an amazing sound profile that will please even the pickiest of audiophiles. This usually translates to explosive bass, defined highs and a general perception of higher fidelity sound. Pretty good tube as I found out that they were actually 6N3Ce tubes and were being being marketed under the Watford Valves brand Harma. Kt88. The system applies the full negative bias for the first 60 seconds so the tubes are only heating, but cannot conduct. For a single channel, I need 2 tubes, 1 bias power-supply, a highly regulated power supply and a phase shifter . Their Trans Shuguang WE6CA7 PLUS Hi-end Vacuum Tube Replace 6CA7 Electron Valve Best Matched Pair New 100% Brand New The price is for a Quad(4) of Matched WE6CA7 PLUS Hi-end Vacuum Tube (4PCS), if you need 8 tubes, we will send you 8pcs of Matched WE6CA7 PLUS Declaration All items guaranteed 100% BRAND NEW in the original edition Box. original British Mullard comparison Recently I had the opportunity to compare two very interesting Chinese quads with a quad of vintage Mullard KT88. However they share the same pinout and can be used in EL34's applications if the rest of the circuit is designed to accomodate them. The specs are the SAME as a KT88, except the TT21 has a HIGHER PLATE VOLTAGE maximum rating. After almost one year time, these HIFI UK Series vacuum tubes were come out by development team of Psvane; Quicksilver Audio stocks quality replacement vacuum tubes for Quicksilver Audio products. Oct 17, 2017 · Russia made KT120 has 60 watts plate dissipation. 00 In Stock! NOS Tubes Precision Tested and Ready to Ship! Capable of delivering clean and responsive to overdriven tones, Ashdown''s CTM -300 is an an all-tube, 300-watt beast that boasts some modern enhancements,  Shuguang Treasure Series Vacuum Tubes 6CA7 And KT88 These Aren't Your Grandfather's Fire Bottles Review By Nels Ferre Click here to e-mail reviewer. For the tubes, I decided to use some KT88. The EI KT90 was by far my favorite with the winged C 6550 also being a very nice tube,The JJ KT88 in my amp sounded sluggish and unfocused and i had one fail in a spectacular fashion that could be best described as lightning in a bottle The KT-88 produces a more robust powerful sound especially at the extremes of the frequency spectrum. This tube are really great for the HIFI. That's twice the output of an average pair of 6L6 tubes. The overall sound quality of a good vacuum tube amplifier is almost impossible to replicate and the quality of the amplifier is directly related to what type of tubes it is running. Premium Octal beam Tetrode, an exact copy of the KT88 valve manufactured by Marconi-Osram for Marshall in the late 1960s and 70s. In fact, I felt that of all the power tubes I have tried in my amplifier E. BEAM PENTODE KT88 is a beam output pentode with an octal base and power of 42W. Apr 19, 2017 · I see the following in Craig's web site: "Valve Rollers Dream! The amps can run EL34, 6L6GC, 5881, 350B, KT66, KT88, 6550, KT90 and more (some tube choices require a 5U4GB rectifier tube)" FWIW, the KT88 is not my favorite output tube. From our KT88 tube type listening tests: "The Shuguang KT88-98 tube has perfect clarity from the very bottom to the very top of the frequency spectrum. using KT88 tubes « on: February 19, 2013, 03:28:28 am » HBP here are a couple things Ive found Im thinking this power transformer and here is a KT88 power supply that could be usefull to copy. Both you have to push hard to get there and they are loud. The new Psvane KT88-T (Treasure KT88-Z) might be a good alternative. The Marantz also fills this spot quite well. Listening Impressions - Odd Block KT88 Tube Amp Kits. jj-electronic. Store Hours Monday - Friday 9 am - 5 pm Central Time : SND Tube Sales . made by GEC/MOV in the  The KT88 audio tube is considered to be one of the best sounding power tubes for hifi tube audio amplifiers. Then it brings them up to full operating point over the next 45 seconds. Capable of delivering incredible power and fundamental bass punch, the STR 488 also offers the perfect blend of balanced midrange and high frequency detail to compliment the outrageous low-end potential this tube serves up. Even if reliability wasn't an issue with the EAT tubes, I would question the price to performance value when compared to the Gold Lion tubes. fwiw: each of the sig-x 's 3-channels can be switched, individually, Using the same pre-amp tubes - I compared a JJ KT-88 against current 6L6 (TAD), 6550 (EH and Shugang) and EL34 (JJ and Mesa) as well as Old Versions of these Philipps, Tung Sol and Siemens and it was only the KT-88 that had this bell/chime and compressed nicely when pushed and the bass never crumbled (some may not like that). Levi. Tests were done at 520 Volts on the plate! Please contact us so we can let you know if this tube is a good fit, your ears will thank you. A KT88 tube that is in a league of it's own. My experience with the KT 88 series is based on TAD, EH, SED winged C and GL. After extensive research and testing we have handpicked a tube that we feel proud to put our name on. It has a sweet mid range that makes up for a tube that is generally intended for hi-fi. As a result, KT88's and 6550's are produce cleaner tones and have low distortion, making it popular amongst bass amplifiers and high end audio applications. The bass is unique in that it compresses the very bottom end. They are matched by the factory at 400V plate, 225V screen and -19. com or pmcomponents. C. The Premium Matching (RT89 part number Able to utilize EL34, KT88, KT120 and KT150 tubes to produce anything from 20 watts of Triode-strapped sound to 80 watts of ultra-linear power- these mono blocks are robustly over-built and can handle virtually any speaker with ease! Features Compatible with EL34, KT88, KT120 and KT150 power tubes; Compatible with 6SN7 or 6SL7 input tubes Features and Descriptions:. In more powerful amps like my Rogue's I prefer the KT88's, because I want plenty of slam and dynamics. EL34 suppressor grid doesn't have an internal connection like KT88/6L6GC types. My reference power amplifier is the Bella EXtreme 3205, a push-pull pentode that can accept either a quad of EL34/6CA7/KT77 tubes biased at 40mV or a quad of 6550/KT88/KT90s biased at 50mV. Bonne Terre, MO 63628 sndtubes@vacuumtubes. The best way to experiment with power tubes is to get a single ended amp like the UniValve or BiValve. Also the most common electrical circuits are given for KT88 and 6550. Michael Marx 105 N. This is a suitable replacement for any 6550/KT-88 tube type. com KT88 a. How do you choose GEC KT88 vacuum tubes on eBay? When you are shopping for GEC KT88 vacuum tubes on eBay, consider their: Condition: Select new or used vacuum tubes. jpg. The separation and clarity really bring out voices and acoustic instruments nicely. com Because a review of vacuum tubes is useless without a point of reference, a bit of background on the amplifier used is in order. Due to the high current and power capability of these tubes, it is very important that the KT88 tubes are well matched. This KT88 based tube amplifier is surprisingly simple. Jun 16, 2019 · I like modern KT77 tubes in medium power amps, but I have also had excellent success with KT88's in the PrimaLuna Prologue Five. JJ Electronic - Vacuum tubes, Capacitors, Amplifiers. 99 per pair, provided in original boxes. The KT88 Mullard is an exact copy of the KT88 valves that were manufactured by Marconi-Osram for Marshall in the late 1960s and 1970s. s has anyone  Any thoughts on the sound difference between the KT77 and KT88? I have VRDs and am considering going to the KT77. This experimental video shows whether 2 different tubes Jun 30, 2009 · Looking for some comments about the quality of differ KT88 valves sound Anyway, found these KT88 DIAMOND Tube Valve - - - EUROAUDIOTEAM - -, modern production EAT KT88 Diamond valves, which are very expensive that goes for like EUR 960 for a matched quad or EUR 450 matched pair, so, getting Tube Data Sheet Locator. Received these tubes 1 week ago, so getting the hang of them at this point. TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar players, DIY tube audio enthusiasts, and audiophiles. Two tubes can be brand new in the original box, with one  Tube KT 88 or Röhre KT88 ID19153, Beam Power Tube, Octal (Int. 5% total harmonic distortion. Listening "Disco alliance" from "Zodiac" band, vynil, 1980. I own more than 2 dozen tube amps, in 5 systems. I love and appreciate tube based audio gear and own sixteen pieces of tube gear between my two reference systems. Just put any KT88 or 6550 tube in and the amp will bias it. In the meanwhile, looking Jul 03, 2012 · The Shuguang Treasure KT88 and its “sister” tubes, the Psvane KT88, and the Fuller KT88 (not the Full Music graphite plate KT88; that is another review!) … these are all the same great KT88 tube and they are really the top of the field of KT88s on the market. (I listen to classical music and opera. My amps, Octave MRE 130, mono tube amps have 140 watts per side and are fairly easy on tubes. com FREE DELIVERY possible on eligible purchases TubeDepot carries a selection of 6550 / KT88 / KT90 Power Vacuum Tubes. Jul 08, 2004 · These tubes give the midrange so much more detail and livelyness. 6550 in guitar amps if you are going for pre-amp distortion but for linear power tube distortion KT-88. From our JJ KT88 tube listening test: "The JJ KT88 tube has the best imaging of all the tubes in this category. </p> <p> EAT reputably manufacture some of the world’s best 300B, KT88, ECC803 & EC88 audio tubes. A sonically faithful reproduction of the original tubes with a robust construction encased in a thick glass envelope. KT88's generate a lot power, handling significantly more plate voltage than other power tubes. It adopts a cobalt blue glass enclosure to provide better heat dissipation through the More Info » (*)These specifications are provided 'as-is', with no warranty of any kind. Power tubes are responsible for powering the output stage in your amplifier. Sent from my  21 Jun 2008 Here's a classic project for the weekend. Our website features secure payment options and fast, convenient shipping around the world. kt88 tubes

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