Kt88 vs 6ca7

Mark Cartwright
The ProLogue Five starts with the same basic topology as the award-winning ProLogue Two integrated amplifier. In audio amps, EL34 tube produces that signature velvet The Treasure Series KT88 really has it all — just like a Black and Tan. No. audiophiles Tube - Valve comparison chart. Zinky Smokey Mini Amp - Red Sparkle vs 03608820. The tube base is kitted to the glass, so you won't have any vacuum defects due by mechanical stress from pulling out the tube often. Schematic. Bob at eurotubes. So bias setting should need VA-KT88: This KT88 is said to be made on original old machines from the M. 5 W. I never judge a tube until at least 50 hours so I am not worried, but they do have less bass than the KT88z or the Gold Lion reissue so far. It have to be experienced as a description is far from enough compared to feeling it in your chest! The GEC/MOV KT88 was typically made with one or two base pins omitted (presumably to save on cost) that has the effect of increasing stress on the remaining pins whilst providing a less secure installation. The above SPICE models for various valves and most of these models are for use with PSpice from Orcad. Sigh Still doesn't seem to keep me from tinkering. Can be used in place of 6550 for a more "round" bass signature. I waited for the first few batches to go through experience has taught me that many times the first couple of batches suck as they begin to iron out the kinks. It can be used in most EL34 amplifiers. 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. What would be expected of the KT88s or 6550s as far as differences in sound between the two of them and between them and the EL34/6CA7 output tubes? A real EL34 is a pentode tube, vs. These are what many believe to be the ULTIMATE 6L6GC TUBE, the awesome, incredibly rugged SED(formerly Svetlana) SV 6L6GC. aside from the tonal differences between tube models (and individual tubes, really), you get more clean headroom when using kt88/6550's. com FREE DELIVERY possible on eligible purchases Shop our great selection of KT88, 6550, KT90, KT120, KT150, vacuum tubes now. It's also the biggest selling guitar amplifier ever made. KT88 Output Tubes. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of current production options to choose from. hx = Hexode Unit. But people shouldn't just think "Fender uses them, so 6L6 amps sound like Fender amps. Kt88. The EL34 is a thermionic valve or vacuum tube of the power pentode type. In Search of the Perfect 300B Tube Page 2 Some manufacturers imply that you get a higher power output from your amp when you install a high-dissipation 300B ( eg , 18Wpc output instead of 9Wpc from a typical SE amplifier). As I'd noted of the Create Hifi 300B earlier whilst comparing it to various contemporary Czechs and Chinese, this brand's sonic focus seems very modern. 8 Jul 2019 For each manufacturer, I have done my best to determine and list all of the tube . All these tubes were audio tubes, meaning they were designed to reproduce sound with as little distortion as possible. NessTone Premium Hand Selected EL34 / 6CA7; Sale! Rated 4. The Tesla/JJ KT77 is a copy of the famous MO-Valve KT77 that is a direct replacement for the EL34 or 6CA7. 7 Apr 2005 and response: EL34, 6CA7, 6L6, 7581A, 5881, KT66, KT88, 6550. Guitarists I worked for who chased Eddie Van Halen's tone for years and tried all the BS mods and Variac crap were blown over when I get their Marshalls and get rid of the EL34's and drop a set of fat bottled 6CA7's in there, and BOOM, there it is. Re: EL34 or KT88 Vs 6L6GC (compare them) I've used them all, and have settled on KT88 amps. 6CA7 was not a copy of EL34, it was a design of its own. Model 86A; Model 87A; Model 142A Attach to EL34,6CA7,KT88,6550,6P3P,6L6GC etc Quantity: 1PC/lot We are open Monday- Friday between 10am-6pm Saturday 12pm-5pm Pickup from Airport Oaks/Mangere Auckland Please click here to ask a question I have a UL and have had both Tung-Sol 6550's (like KT88s) and Sovtek KT88's ordered from SFD in my power tube section and the KT88's sound better. com ,the Leading Trading Marketplace from China We can disregard 'big bottle' valves such as the 6550, KT66, KT88 and KT90, as they will easily deliver more power than we want (or rather, consume more power than we might have available!) and are therefore 'wasted' in this application, unless they are otherwise desirable for their tone (there is of course, no reason why we couldn't use a Schematic. Many of these use European nomenclature. And I think the only ones on the market are JJ or Gold Lion. $ 65. Home Brand Amber KT88 EL34 = KT77 = 6CA7 Re: DIfference between KT88's and EL34's What kinkless meant was a kink in the sine wave when observed on a scope. Shugang Treasure KT88-Z vs. The Smokey Amp will also power any 4, 8 or 16 ohm speaker cabinet, as well as 4x12s, and can be used on the input of another amp as a fuzz box. KT120 is 51k maximum, might check your rig first. There were a few versions of this tube created before what's available now. Shuguang Vacuum Tube 2A3 Series Triode: 2A3B (2A3) DESCRIPTION 2A3B is compatible with 2A3. 6BQ5. But if you are talking in SE mode than I would definitely go for KT88 for this. Psvane black glass treasure series. Tolex, Grill Cloth or Wood Front, other Details. Power tube distortion exists and is a great thing. The valve offers the EL34 user a slightly different sound when compared to a regular EL34 type. I liked it on the first part of the riff. I have all gate of output tubes at the same bias volatge because I have used a matched quad by but if you want to use spare output tubes without any match you should use a separate bias trimmer and a separated interstage capacitor per each output tube on the gates and a 10 ohm 1/2W resistor on each cathode to measure the current of a single tube. Fixed Bias KT88 is 100k max. And after lots of reading, I've decided to try KT77. Even more powerful than KT77, and very similar to 6L6 sound. brought over a selection of quads of various EL34s and 6CA7 tubes,  I preferred manual biasing the amp. It is divided into two classic grade and premium grade same as treasure series tubes. 8 W. New & NOS power tubes from Mullard, Tung-Sol, Electro-Harmonix, Genalex, Telefunken & more! The JJ KT88’s also sound excellent in the Hot Rod 50, Soldano amps. The purpose of designing this amplifier was to drive the B&W Signature 800 with 70W maximum output derived from EL34 Push-Pull Class B1 fixed bias operation. Buy RS PRO, Thermionic Valve Base Octal for 6550, 6CA7, 6P3P, 8-pin vacuum tubes such as EL34, KT88 or other Thermionic Valve Bases online from RS for next day delivery on your order plus great service and a great price from the largest electronics components 6CA7 シングルアンプ製作例(フロービス) Translate · 6ca7/el34 シングルアンプ製作例 ☆ 回路構成 出力管 6ca7/el34 OPTのインピーダンス3.5Kに設定、その他前回 EL L6GC/6B4G コンパチブル・シングル・アンプ ( オーディオ ) - 真空管アンプの自作と This amp was designed mostly to work with KT88, 6L6, or EL34 tubes in either triode or ultralinear mode. Read honest and unbiased product reviews from our users. SED "Winged C" SV 6L6GC. JJ 6CA7: like the EH 6CA7 but more mids. It actually wasn't. Psvane 6CA7-TII (Matched Pair) TII-Series: Positioning in exceeding totally, not only exceed all the same types of productions that always been imitating on the market, but also to exceed itself. SRS Premium Matched Pairs, Quads, Sextets, and Octets. So far the JJ KT77, the Winged C EL34 and the Tung-Sol KT120, in a PrimaLuna amp which came with branded KT88'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 This video was inspired by a question I was asked about swapping KT88's in place of EL34/6CA7's. I designed a driver PCB using two 6SN7's that can drive just most tubes, triode or pentode. 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. The Sophia Electric KT88-ST’s check all the boxes for me. 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. Recently, I have been looking at 'Winged C' Svetlana KT88s as well. If you own an EL34 amp, you know the magic it produces. 5mm 真空管アンプ 3. 6W6GT. Power tubes are responsible for powering the output stage in your amplifier. These can be substituted with appropriate bias adjustment. PSVANE KT88-TII Vacuum Tube MARK TII Series. The Anodes of EL34 (6CA7) and KT88 can function from a B+ 800V supply. Liu at TJ/Full Music but for him we are just resellers. The 6L6 tubes are muddy compared to the KT88/6550 choices. But The glass bottle is a bulging waisted shape like the bastard offspring of a big recifier (like the 5AR4) and a power tube of the Kinkless Tetrode family (KT66 or KT88), but harking back to a 6SN7 predecessor, the 6N7, a 4W dissipation triode for class B circuits that's great sounding and cheap as chips. The Smokey Amp is the world's smallest and least costly guitar amplifier, proudly made in the USA. About Groove Tubes and Introduction  Items 1 - 12 of 75 The KT90, KT120 and KT150 are all tubes that were designed in the modern era. 5W. Conversely, the Jolida 502 cannot run the EL34/6CA7 as things are. Self Bias KT88 is 220k KT120 is 240k so very similar 3) Transconductance appears to be close, 11-12k for KT88 VS 12. this Amplifier good for  Choose your Design. They are very well made and hold bias perfectly. Finding these tubes at a reason able price is next to impossible, and t his is a way to get an excellent value on these wonderful tubes. Free Next Day Delivery. com has just published its "World Premier" review on Shuguang Treasure series 6CA7-Z and KT-88Z. 6CW5/EL86 275 V 130 mA 10. The KT88 is a beam tetrode/kinkless tetrode (hence "KT") vacuum tube for audio amplification. New factory platinum matched QUAD (Four) KT-77 Genalex Gold Lion tubes. 4 x JJ 6L6 (standard); 2 x JJ 6L6 + 2 x JJ KT88 (deep and tight low end - best for metal!) 2 x JJ 6L6 + 2 x JJ EL34; 4 x JJ KT77; 4 x JJ 6CA7  KT88. Psvane KT88-TII vs. 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. EL34/6CA7 EL84 KT66 KT88 Psvane HiFi Series Replica Series Treasure MKII Series Treasure Series Shuguang Natural Sound Series Treasure Series Replica Series HiFi Series TJ FullMusic Golden Voice Electro Harmonix Genalex - Gold Lion JJ Electronic MULLARD SOVTEK SVETLANA TUNG-SOL Tube Kit Guitar Amplifier Kit Acoustic ADA Ampeg Benson Blackheart 6550 / kt88 / kt90 KT88's generate a lot power, handling significantly more plate voltage than other power tubes. m1: mt-9ピン双3極管 m2:mt-9ピン3-5極複合管 m3:mt-7ピン5極管 Buy Electro-Harmonix 6CA7, Matched Quad (4 tubes): Tubes - Amazon. I LOVE the new JJ 6CA7. com: Only US$939. Table of Contents. " Mesa Boogie also uses them. The classic American tube sound: lots of lows and highs, midrange is  28 May 2010 Most output valves in HiFi valve amps (40 Watt and less) are . Electro-Harmonix sound effects are world renown for the soulful warmth of their analog sound and their line of "EH" premium tubes continues in this tradition of classic tone. Some have reported reliability problems while I have used the same pair for a year now. Find helpful customer reviews and review ratings for Matched Pair Classic Grade Psvane 6CA7-T(EL34) Mark II Vacuum Tubes at Amazon. 6853. While the Treasure Series 6CA7 is the only EL34 type tube that I have ever heard that I could easily live with long term, their KT88s (to my ears and taste) are even better yet. They are big, fat, round and very dynamic. The power amp V6 tube socket: 6V6, 6L6, 5881, KT66, EL34, 6CA7, 6550, KT88. Has anyone auditioned the Shuguang 300B-Z Treasure Black Bottle tubes? According to the sales verbiage posted on by the various online sellers of these tubes: "High Polymer Compound Carbon (HPCC) coating is for the first time used on vacuum tube production. They are often found branded RCA as RCA NEVER made any kind of 6CA7/EL34 in their own plant. DIY Tube Amplifier / Wzmacniacz lampowy ECC83, 2x EL84. CAUTION WARNING You are cautioned that any changes or modifications not expressly approved in this manual could void your authority This symbol is intended to alert the user To prevent fire or shock t ★★送料無料★★ 親切な真空管ヘルプデスク 無料相談 0120·194·380 プレミアムクラス 最高グレード 極上の真空管サウンドを求める方にお薦め·全数検査、210日間保証、72時間エージング 商品について ·新品 現行真空管 完動品。 ★★送料無料★★ 親切な真空管ヘルプデスク 無料相談 0120·194·380 ハイエンドクラス クオリティとプライスとのバランスが良くお薦め·全数検査、150日間保証、48時間エージング 商品について ·新品 現行真空管 完動品。 I tried 6L6 in my dynakitparts Stereo 70 once, and using a 5U4 rectifier made it possible to bring the bias into range, though, of course, this might vary with some other factors. 59 – $ 59. 電蓄にはその他、5極管である42や6f6、6ca7などが多く用いられた。このうち高級品である6ca7やそのファミリーが今日 [いつ?] の真空管式ギター・アンプなどによく使われている。なお、6bq5は6ca7と同時期により小型の出力管として開発されたものである。 As for EL34 vs KT88. Basically any amp using 6550’s can use the JJ KT88’s. kt88/6550 is a different animal, look for a little over 80 watts a pair. Very balanced with excellent creamy distorton when driven, excellent bass, treble, & midrange tone. Item arrives . The following instructions are keyed to the table of teat data given In paragraph & For comule@ operating inatruetions see TM 11-6625-274-12, Operator’s KT88 Output Tubes. KT88 vs EL34 vs 6L6 Substitution In Vacuum Tube Amplifier. I asked over on HCAF too but Id like to hear what you amp wise people over here think too. Abstract: 5881 tube KT88 kt88 tube kt-88 6a3 tube el34 tube 807 tube el34 6L6GC TUBE Text: 1650F 25 7,600 ct 6L6GC, 6V6, 807, 5881, EL34 1645 30 5,000 ct 6L6GC, 6V6, 807, 5881, EL34 1650H 40 6,600 ct 6L6GC, 807, 5881, EL34 Ca t . When buying a rebrand version, it's more than likely that you will pay much more for these tubes. Those tubes are generally run at different operating parameters so, other than assuming that some differences may be noted, it's not possible to have a clue about what those differences may be without knowing plate/screen voltages, bias, primary impedance of the opt, characteristics of the A 6CA7 is a different type of tube than an EL34. jpg. In other words, it deals with the output transformer, as well as speaker. Mikael Abdellah's Single-Ended The largest difference from the transistor amplifier to the EL34 tube amplifier is the bass. Cathode bias is mostly used in low cost valve amps that function from a 300V to 400V B+ supply. E. 6CA7 is the US equivilent of the EL34. Need vacuum tubes? Want to build your own amplifier? Have an unhealthy HiFi obsession? We've got you covered. Having said that, I use SED EL34s, EH 6CA7s and GL KT77s in my Jadis amps and your description is pretty much in line with my experience, and I'd agree the KT77s were somewhere in between as you suggest, although much closer to the 6CA7s than the EL34s. I must stress that there are a lot of good versions of this exceptional tube out there and that these are just a few that I feel I have had enough experience with to share my views on. GT-EL84. This amplifier was featured on the January 2003 Issue of the "High-Fidelity Audio: Radio Technology" by Mr. 6CA7/EL34 400 V 150 mA 14. JJ Electronic Vacuum tubes are one of the most rebranded tubes on the market. With the dynakitparts power transformer, you should be able to use 6550/KT88 as well, but you may have to address a change, as previously mentioned, in order to bias Hot Rox UK supply Matched Premium Vacuum Tubes, Boutique Fx pedals Worlwide. . Select the Tube Type from the scrolling list. I have used a couple of amps in the video and made cathode current and power output measurements on I have the opportunity to have a custom made tube amp build for me from and old Magnavox amp. EL34 vs 6CA7: Spoiler alert: there’s not much difference and they are, indeed, completely interchangeable. Its deep as the internal hell, clear like tuned piano and makes a world of difference to enjoying music. AC-15; a lot more Vox schematics are on the Vox Heaven Page; Western Electric. I love them. However, most amps that weren't designed with them in mind won't supply them with enough plate voltage to really make them shine. I've heard that high current tubes cause problems with these Hickok's, but it tests 6L6GC/EL34/6CA7's without any issues. The ProLogue Seven starts with the same basic topology as the award-winning ProLogue Five stereo power amplifier. This is high praise. 3v heater filament, and can dissipate 25W. New Search The 2203KK runs four KT88's and uses the same Main and O/P transformers as the JVM410 (at 100W). O. KT88 GENALEX EQUIVALENT = GEC TT21 The TT21 is a GEC transmitting BEAM TETRODE that looks just like a KT88 with a top cap connection. PSVANE KT88-TII Vacuum Tube MARK TII Series HIFI EXQUIS Factory Matched KT88 Electron Lamp El34 6CA7 tube We have 300B, 2A3, KT66, KT88, 6CA7 and CV188 in the range*. However a KT88 is a 35 watt dissipation tube. Our tubes are always tested, matched and guaranteed. KT88. We also indicate top sellers for the EL34 tube type. A quad of four 6CA7-Z tubes now comes in its own presentation box--a nice touch. The JJ KT88’s also sound excellent in the Hot Rod 50, Soldano amps. We offer a version with a nice polished nickel plated tube base. original British Mullard comparison Recently I had the opportunity to compare two very interesting Chinese quads with a quad of vintage Mullard KT88. My two quads of matched tubes finally arrived, securely packed and in their individually marked boxes. You can't really generalise about the sound of output tubes because so much depends on the circuit they are used in. The PCB also includes a tube-based power supply, using 5U4 or whatever tube you like, and snap-mount capacitors on the PCB. Learn more about Fender electric basses. push/pull, pentode vs. 8585W integrated 4 x 6550 / KT88 / KT90 per channel, CFB, Power pentodes like the KT88, 6550, 6CA7, KT77 and EL34, are configured to function and sound like single-ended triodes with the advantage of considerably   Buy YAQIN MC-13S EL34 (6CA7) 4 Vacuum Tube Integrated Push-Pull Amplifier (Silver): Amplifiers Ships from and sold by Amazon. 5k for KT120 under similar conditions. 4. KT88 is a beam power tetreode, its anode limited dissipation power is 42W. Read the full review here. Sylvania "Fat Boy" USA These are known as "Fat Boy" tubes because 6CA7/EL34 tubes made in the USA have much fatter glass bulbs than their European EL34 equivalent. 5w+3. Kt88 Se Amplifier Schematic Please Note: KT88 Works Both as Integrated & Power Amplifier many ways it is similar to what might be described as a Single-Ended sound, also called S-E. Not to be outdone, Sylvania introduced fat-bottled 6CA7 in US soon after. He still may have it in his latest tube primer e-mail, but I haven't looked at them in a while. Which power tube?Shuguang EL34B,Electro Harmonix EL34,Reissue MULLARD EL34,Reissue Gold Lion KT88,Treasures 6ca7-z,Ei KT90 ,Groove Tube EL34m , 6CA7 JJ Electronic - Vacuum tubes, Capacitors, Amplifiers. Very surprised how they sound (Rivera Chubster 45 watt amp). GT-EL34. This is probably why the EL34 stands out from the group. Most EL34 amps are running around 450 volts, and the good sounding KT88 amps are running almost 700 volts through them. I have no vested interest in Psvane, Shugang or Grant Fidelity nor were any of these tubes given to me. Now I need to pick out tubes. Sometimes we are in stock of everything, sometimes in-between deliveries but we can usually restock quite quickly. 59. EL34/6CA7 Ultra-linear Circuit Characteristics: หลอด 6550 และ KT88 ได้รับความนิยมอย่างล้นหลามในแอมป์ไฮเอ็นด์ที่ผลิตในช่วงปี 1970-1980 รวมไปเกือบทุกรุ่นของแอมป์ไฮเอ็นด์ดังๆอย่าง Audio The Line Magnetic integrated amplifier LM-211IA is a push pull amplifier with 4x EL34 tubes in Class AB amplification and delivers 2x15W in triode mode and 2x32W in ultra-linear mode. You can never go wrong by purchasing the best stereo tube amp under 1000 dollars on our list or any other model tube amps we reviewed here. hp = Heptode Unit. Amplifier restorations (including additional material on Williamson amps and transformer and 12AX7 preamp, EF86-12AU7-quad 6CA7 PP amplifier with A&E 2096 KT88 individual cathode biased UL output stage, with optical limiter Circa   shenzhenaudio. BustedGear. Want to enjoy some other types of power tubes? There is a JJ large bottle 6CA7 that supposedly sounds incredible but in most amps may fail, but in our low-stress design should be fine. "We also have a direct account with Mr. This has resulted in all sorts of conversion modifications, either to 6550/KT88's (a bad choice, as grid resistance issues are the same as the 8417) or to EL34/6CA7. More bass, better texture and definition down there too. Summary > In any Dynaco or VTA ST-70 you can use 6L6, EL34, 6CA7, KT66 or KT77 output tubes. Try limiting your search by using the Advanced Search Options below to select an author, a date range, a single forum or more specific search terms. The golden voice kt88 tubes arrived and I finally got there to pick them up. The JJ KT77 is a sweet sounding tube with a great mid range and awesome dynamics. TT EL34: EH KT88: powerfull bass, soft top end. Without a thorough knowledge of tube types and their substitution possibilities, you may be over-paying for your new or NOS tubes you employ, or just pick the wrong ones. It has a 6. NessTone EL34. Equally good yes, same flavor no. Create. GZ30 / U50. Still, we could supply you for review if you wished. Conditions appear similar, but might double check. I also have a quad of Sovtek 6550s. com. I have the opportunity to have a custom made tube amp build for me from and old Magnavox amp. Psvane Treasure Mark II KT88-TII, beam power tethrode, Shuguang Tresure 6CA7-Z, vacuum tube. The 6CA7 is the US designation for the EL34 and is complete interchangeable. Reviewer Nel Ferre says: "Beyond good these are great!" "I found that I preferred the Treasure Series 6CA7 to the regular grade Shuguang KT-88 in my system for their extended highs and midrange beauty. Electro-Harmonix KT88 . $ 58 Psvane KT88-TII Classic Grade treasure Tube. I love and appreciate tube based audio gear and own sixteen pieces of tube gear between my two reference systems. TEST DATA FOR ELECTRON TUBE TEST SETS TV-7/U, TV-7A/U, TV-7B/U, AND TV-7 D/U 1. Skip to content Search. C. But, hell, I may not be able to hear that much difference with my tinnituscould be a moot point. High evacuated tube, it achieve high performance tube in audio frequency. 7025. If you are looking for NOS Power Output tubes we probably have it in stock! We provide stringent testing using our Maximatcher and Amplitrex AT-1000, and with our large inventory of power tube types, we supply you with unprecedented current draw matching! EL34 = 6CA7 POWER PENTODE (click on links below to check stock) Philips Holland metal base 1955-1958 Philips Holland brown base double "D" getter halo 1958-1962 GE Big Bottle 1970s JAPAN 1960s - 1970s Mullard XF1 "FAT BASE" and welded plates 1958 - 1962 Mullard XF2 welded plates 1962 - 1973 Mullard XF3 stapled plates 1973 - 1975 Mullard XF4 stapled plates late 1975 - 1980 RFT East Germany 1970 25W with 6CA7/EL34 cathode biased; 35W with 6CA7/EL34 fixed bias; 50W with 6550/KT88 fixed bias; Univox. Valve company, UK. I find that 6550s, at least the ones that I have heard, have a "hardness" that the KT88 doesn't have. The 6CA7/EL34 Electro Harmonix is a remake of the classic American Sylvania 6CA7 design. Grade B The Psvane 6CA7-T tubes are direct replacement to standard 6CA7 and EL34 tubes of all make. The KT88 has what the 34 was missing which is just a little bit more tightness when the riff goes the the 16ths part. VA-KT88: This KT88 is said to be made on original old machines from the M. 6CA7 / KT77. 91 out of 5 based on 11 customer ratings (11 customer reviews) $ 9. The differences are in how they are operated (not just single ended vs. im a new bee here. lampowego Single End. See our EL34, 6CA7 KT77 Catalog to shop. Be sure to check out our EL34 / 6CA7 / KT77 tube reviews page for more information regarding the sound qualities of these tubes. You need to try it and draw your own conclusions. all major current production and select NOS EL34, KT77 and 6CA7  1PC 8pin octal tube socket for KT88 EL34 6L6 6CA7 6V6 6550 KT66 chassis mount. Because of our tradition of supplying the highest quality tubes, we are proud that our ouput is the very best in the world for upgrade and replacement. If you have a lar'mar master, you need different value pot for the KT88's BTW. m1: mt-9ピン双3極管 m2:mt-9ピン3-5極複合管 m3:mt-7ピン5極管 Re: DIfference between KT88's and EL34's What kinkless meant was a kink in the sine wave when observed on a scope. 2. The Grids are referenced to ground (chassis) by a 220k resistor. These tubes have been cryo treated, given a 48 hour burn-in, and matched on the industry standard Maxi-Matcher at 400volts. (Note: This is a weakness of some KT88, like TESLA) . I use my HT 20 with a Malcolm Young sig Gretsch for the old ACϟDC rhythym tone, played thru WGS Reaper 55 and a WGS Green Beret, in different cabs to sample. Standing taller than many common octal Vacuum Tubes. The tube sounds wonderful, withtremendous body and punch, while still giving you the warmth and humanity you'd expect from an all-tube amplifier. They extend deeper into the low end – farther than the 6CA7-Z. Technology moves forward and offers auto-biasing. Very good detail, but light in the bass. made by GEC/MOV in the  The 6550 and KT88 tubes often will sound more extended in the highs, . The 6CA7 also has a super clear Electro-Harmonix KT88 EH Vacuum Tube Quartet Platinum Matched Electro-Harmonix is rocking the vacuum tube community with the superior quality of the "EH" series tubes. 275 V 130 mA 10 W. The KT77 is an interesting tube and is a drop-in substitute for the EL34. $59. They are all loosely based on the KT88 but with much more  6CA7 is a beam power pentode with octal base. One matched pair in stock! These are just within 3mA matching. -. When pushed, EL34 will produce wonderful quintessential classic Marshall tone that's instantly recognizable. And dozens of other amps that all sound different. If you don’t prefer any of those tube amps, then follow the suggestions in the handy buying guide and you should be able to find a tube amp model that nicely meets your needs. USD. Source Legend: DC Dave Cigna / Francesco Piazza DM Me!. Self biasing is common for lower wattage < 30 watt amps, not common for higher wattage. 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. To my ears nothing comes close to the treasures!!! I've used SED EL34s for years. looks like well built apart from loose on/off switch (doesn't stay in its place properly, a bit wabbly). Other similar, but not identical power pentode tubes are the KT77 and 6CA7. Your query returned too many records. Cryo Preamp Tubes-> Super Cryo Preamp Tubes Cryo Power Tubes-> 2A3 Cryo 300B Cryo 6550 Cryo 6CA7 Cryo 6L6 / 5881 Cryo 6PS3-E Cryo 6V6 Cryo 7591 / 7591A Cryo EL34 Cryo EL84 / 6BQ5 Cryo KT66 Cryo KT77 Cryo KT88 Cryo KT90 Cryo KT120 Cryo KT150 Cryo Cryo Rectifier Tubes-> NOS 12AT7 NOS 12AU7 NOS 12AX7 NOS 12BH7 NOS 6922 / 7308 / 6DJ8 / CV2493 NOS PSVANE : Welcome to Hifi-Amplifiers. The Line Magnetic integrated amplifier LM-211IA is a push pull amplifier with 4x EL34 tubes in Class AB amplification and delivers 2x15W in triode mode and 2x32W in ultra-linear mode. Browse our latest Thermionic Valve Bases offers. I can better see the bottom of the upright bass on Joshua Redman’s Trios Live record. Truthfully Im not sure Ill get an answer there but well see. The 6CA7 is technically a different tube and has a bit more of an American tone as well as being much fatter. Here are some notes and photographs of a single-ended (SE) KT88 tube  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. Electro-Harmonix owns 100% of the largest remaining vacuum factory in the world. But I thought I'd try some new tubes and was looking at KT88, KT77, 6550, or 6CA7. The top cap anode connector gives better isolation between anode and grid. The pre amp section is influenced by Tweed and Black Face Fender amps. The tube sounds wonderful, with tremendous body and punch, while still giving you the warmth and humanity you'd expect from an all-tube amplifier. It has an international octal base (indicated by the '3' in the part number) and is found mainly in the final output stages of audio amplification circuits and was designed to be suitable as a series regulator by virtue of its high permissible voltage between heater and cathode and other parameters. Title: 6CA7 Author: Tung-Sol Subject: FP-2005-05-28 Created Date: 5/29/2005 12:17:21 AM I switched to 6CA7's from EL34's about a year ago. Putting four of them in your 100 watt amp isn't going to give you 140 watts, it will still be a 100 watt amp. com 4pcs Matched quad PSVANE HFI Audio Vacuum Tubes UK KT88 Guitar Amp Valve New See GD-PARTS 8pin Octal Tube socket For EL34,KT88,6SN7,6CA7,6L6 Hifi Guitar AMP DIY Psvane vs. Calculate Plate Dissipation In Cathode Biased Output Stage Based On Voltage And Resistance Readings In these calculations, 5% of the cathode current is assumed to be screen current. Not a huge difference but KT88 wins even though I voted the other way. After Winged C jacked up the price of the 34's, curiosity and the price of JJ's 6CA7's overcame me. Chinese Psvane KT88-T Premium Grade. I kicked off with what I expected would be the closest call. EL34 Electro Harmonix Matched Quad. Anyway, the British made the EL34 power tube. Putting on 2 new Edcor CXPP50-5K – 50W, push-pull tube output transformers. The market expanded. 16 Jun 2019 The KT88 delivers power and punch, but, it can sound a bit brittle or . Actually this Amplifier is good for EL34 and KT88(6550). This tube is a favorite of audiophiles. With the dynakitparts power transformer, you should be able to use 6550/KT88 as well, but you may have to address a change, as previously mentioned, in order to bias Bonjour à tous les amoureux de la marque et possesseur de ce petit bijoux , j'ai la chance d'avoir l'Atm1 depuis quelques temps Sur les conseils d'u ぷろにはてんでたらない ふろのどうらく Page 2- Thinking of buying first tube amp (Yaqin 100B??) Tube Gear - Preamps, Power and More! 真空管アンプに関する口コミ、最近の感想、評価、評判、クチコミ、レビュー、比較。3. 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. Available Individually, or in . But Send E-mail to brentjes@audiotubes. Those tubes are generally run at different operating parameters so, other than assuming that some differences may be noted, it's not possible to have a clue about what those differences may be without knowing plate/screen voltages, bias, primary impedance of the opt, characteristics of the Psvane KT88-TII vs. 1PC 8pin Get the item you ordered or get your money back. EL34 of EH and Telefunken(Siemenz)getting very much musical sound. between EL34 and 6L6. Features and Benefits • Thermionic valve base tube cross reference basics There have been a myriad of tubes types and styles made over the years for industrial, military and commercial use. KT88 Here you will find a small collection of my all time favourite tube, theKT88. triode -- but plate and bias voltages), and how Tube Bias Calculator Instructions & Help. 6550, KT88, or KT90 may be used without modification, in most cases(biggest problem is that the base clips usually won't fit KT88 or 6550) and by installing a simple jumper, both 6CA7 (fat bulb ) & EL34 (skinny bulb) tubes, too! The 539B roll chart has the settings for KT88's so I didn't think there would be a problem. We use the current production copy of the legendary Genalex KT88. If you want to go to a "larger" tube like a 6550, KT88, or KT120 the result may be a little more "pop" to the music, and while the bass may appear to go a little deeper, it will not be as "round" as an EL34. Though I prefer the KT88s both models are very highly recommended". Two EL34 tubes in push-pull will produce about 35 to 40 watts, but two KT88 will get you about 85 to 100 watts. d = Diode Unit. Found total of 200 records, Query: kt88 +vs +el34 in Tubes Asylum, Time: 1 sec. Tubes normally operate  11 Jun 2007 DIY Single-Ended (SE) KT88 / 6L6 / EL34 / 6CA7 Tube Amplifier. They only have a few hours on them. Tadaatsu Atarashi. You can put it in with some mod's. Two triodes can be used in class A and AB amplification. EL34 Push-Pull Mono-Block Power Amplifiers. PurpleNightmare. Now Im looking for a quad of KT88s or 6550s, mostly KT88s though. And provides a list of possible substitute pentode type tubes KT88, 6550, KT66, KT77, 5881, 6L6, EL34, 6CA7 and 7189A. Bob The glass bottle is a bulging waisted shape like the bastard offspring of a big recifier (like the 5AR4) and a power tube of the Kinkless Tetrode family (KT66 or KT88), but harking back to a 6SN7 predecessor, the 6N7, a 4W dissipation triode for class B circuits that's great sounding and cheap as chips. KT88 labelled G. 6BQ5/EL84 305 V 120 mA. EL34 / 6CA7 / KT77 Tube Reviews. It is perfect for use with KT88, 6CA7, 6P3P, 8-pin vacuum tubes such as EL34 and 6550. I like the JJ 6CA7's BTW. Enjoythemusic. Very similar in tone to Mullards at less than half the price. A. These have large plates with 3 holes and are known to sound very good and to be very rugged. All 6CA7/EL34/KT77 include our 6 month replacement warranty. That alone should give you more headroom. We have a walkin store or order online 24/7 ★★送料無料★★ 親切な真空管ヘルプデスク 無料相談 0120·194·380 プレミアムクラス 最高グレード 極上の真空管サウンドを求める方にお薦め·全数検査、210日間保証、72時間エージング 商品について ·新品 現行真空管 完動品。 Page 2- Thinking of buying first tube amp (Yaqin 100B??) Tube Gear - Preamps, Power and More! I tried 6L6 in my dynakitparts Stereo 70 once, and using a 5U4 rectifier made it possible to bring the bias into range, though, of course, this might vary with some other factors. I have accumulated a few amps over the decades that use EL34's, so I decided to try some new issue EL34 substitute tubes. Highly likely that you would need to re-bias switching from EL34 to KT77. el34 / kt77 / 6ca7 Sort by Featured Best Selling Alphabetically, A-Z Alphabetically, Z-A Price, low to high Price, high to low Date, new to old Date, old to new Filters TubeDepot carries a selection of EL34 / 6CA7 Power Vacuum Tubes. 98 Buy YAQIN MC-100B 60WPC KT88 Utilizes the audiophile capacitors and high quality metal precision resistors YAQIN MC-13S 40WPC EL34 6CA7 10L Vacuum Tube Push-Pull Integrated Amplifier. When installing a tiled floor next to a carpeted floor, you are going to need a smooth carpet transition to finish the job. Do not use the KT88 in inverted mounting without a retaining device. Cryo Preamp Tubes-> Super Cryo Preamp Tubes Cryo Power Tubes-> 2A3 Cryo 300B Cryo 6550 Cryo 6CA7 Cryo 6L6 / 5881 Cryo 6PS3-E Cryo 6V6 Cryo 7591 / 7591A Cryo EL34 Cryo EL84 / 6BQ5 Cryo KT66 Cryo KT77 Cryo KT88 Cryo KT90 Cryo KT120 Cryo KT150 Cryo Cryo Rectifier Tubes-> NOS 12AT7 NOS 12AU7 NOS 12AX7 NOS 12BH7 NOS 6922 / 7308 / 6DJ8 / CV2493 NOS 替代 : kt77、6ca7 除了 kt88,應用最廣泛的功率管就屬 el34 了。 使用 el34 設計的管機,"通常" 較簡單、便宜,很適合入手。 輸出功率雖然不比 kt88,但管身細長,一台擴大機就算容納個 6 支、8 支也不成問題。 Buy RS PRO, Thermionic Valve Base Octal for 6550, 6CA7, 6P3P, 8-pin vacuum tubes such as EL34, KT88 or other Thermionic Valve Bases online from RS for next day delivery on your order plus great service and a great price from the largest electronics components Amplifiers Octal Ceramic Tube Socket 5u4g 6550 6sn7 Kt66 Kt88 El34 , Find Complete Details about Amplifiers Octal Ceramic Tube Socket 5u4g 6550 6sn7 Kt66 Kt88 El34,Octal Ceramic Tube Socket,Amplifiers Tube Socket 5u4g 6ca7 6550,6sn7 Kt66 Kt88 El34 Tube Socket from Amplifier Supplier or Manufacturer-Shenzhen Hanlongjia Technology Co. Electro Harmonix EL34 The EL34, 6CA7 and KT77 also have similar pin outs. F. Tube Options. 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. Many of the EL34, 6CA7 and KT77 tubes listed here also have customer tube reviews. If you have an upgraded power transformer on your Dynaco ST-70 or you have a VTA ST-70, you can also use 6550 or KT88 output tubes IF you modify the bias system with resistor changes. Searches are limited to a maximum of 200 records. I’m looking at JJ Electronics EL34, JJ 6L6GC or JJ 6CA7, mostly because of cost. 6CA7 - America's Answer . OUTPUT PENDODE EL34 is an octal power tube with a maximum plate power of 25W. The E34L is a special low grid voltage version and is not always interchangeable. GT-5Y3. Sovtek KT88's are a sure thing. The 6CA7, 6L6, 6550, and KT88 are beam tetrodes, while an EL34 is a pentode. Are you looking for the very best tubes for your vacuum tube amplifier? This is the place to start. GEC KT77 No one can tell you what differences you may perceive. How to install carpet to tile transition. Mike: Thanks much for the quad of Siemens EL34 tubes. And many European tube manufacturers soon started manufacturing EL34. GT-7025. Learn more   Note: For calculating plate dissipation in cathode biased circuits, subtract the measured cathode voltage from the measured plate voltage and use that as the  100W mono bloc, 2004 With 3 x 6SN7 and 6 x 6CA7 or EL34, Pictures and amp details and info. They seem to be able to take high voltages well and sound great. Superior sonics to KT88 Genalex / GEC. Enter values in blue and click any Calculate button. Title: EL34 Author: Mullard Subject: FP-2002-02-16 Created Date: 2/17/2002 1:14:47 AM 真空管の写真. EL34 comparison Mullard vs Siemens vs Sovtek vs Telefunken vs Svetlana vs Electroharmonix, etc. 6CA7-Z is high property audio output pentode, its anode limited dissipation power is 25W, the output power is over 10W when it is used as class A1 in amplifier single tube, and it is over 35W when it is used as class AB1 double tubes. BACK IN STOCK! One of the best deals in great sounding NOS EL34s. Options The KT77 is equivalent to the 7581/6L6GC, and the KT88 is the Limey version of the 6550. i have owned it for almost a year now and i can't be happier it's a very impressive unit, definitely BEST bang for your bucks. Yaqin Mc-100b Kt88 Vacuum Tube Hi-end Integrated Power Amplifier 110v-240v Gold. This data is If you are looking for NOS Power Output tubes we probably have it in stock! We provide stringent testing using our Maximatcher and Amplitrex AT-1000, and with our large inventory of power tube types, we supply you with unprecedented current draw matching! Fender literally wrote the book on electric basses, laying the foundation for musical innovation and evolution. 6CA7 is drop-in compatible with EL34, but it sounds closer to 6L6 because of this. Premium vs. The American power tube design to counter the EL34 was the 6ca7. com: Only US$999. I've been using the Shuguang treasure 6CA7's for the last 3 years. Cryoset Deep Cryogenic Treatment: Cryo Preamp Tubes-> Super Cryo Preamp Tubes Cryo Power Tubes-> 2A3 Cryo 300B Cryo 6550 Cryo 6CA7 Cryo 6L6 / 5881 Cryo 6PS3-E Cryo 6V6 Cryo 7591 / 7591A Cryo EL34 Cryo EL84 / 6BQ5 Cryo KT66 Cryo KT77 Cryo KT88 Cryo KT90 Cryo KT120 Cryo KT150 Cryo Cryo Rectifier Tubes-> NOS 12AT7 NOS 12AU7 NOS 12AX7 NOS 12BH7 NOS 6922 / 7308 / 6DJ8 / CV2493 NOS A Comparison of Current Production 12AX7 Tubes. Although power pentodes and beam tetrodes are based on different principles of operation and have different internal constructions they are functionally closely equivalent. The 6CA7 valve produces a very big sound stage which is more open than the tight punchy sound associated with the regular EL34. Power beam-tetrodes: 6BQ5/EL84, 6CA7/EL34, 5881, KT88. Change language Supplier country Руководство по эксплуатации Sony MDS-JA30ES - Реши свою проблему. We carry all of the major brands in NOS, vintage and New Production vacuum tubes. So bias setting should need What is the difference between original production Genalex KT88 tubes and original Gold Lions? - The ones made by GEC - Not interested in reissues. The output power of single tube can reach 6. Can anyone comment on differences they have found between Shuguang Black Treasure Z vs Gold Lion tubes. Standing taller than many common octal The EL34 is an 8-pin "octal" power pentode tube found in the power amp section of many guitar amps, mostly in sets of two or four matched valves. Turned it up louder and listened again. wmv is great and working well, along with a working amp and schematic -- this amp is well worth your time and love. Since completing this review, I understand that Grant Fidelity have also upgraded this packaging. Psvane Cossor KT88 1pair. 95 . Operation. I'm particularly interested in the KT-66 tubes, but since there doesn't seem to be much info on a direct comparison when I searched, I thought an overall comparison might be able to complete the picture. , Ltd. Floyd Rose vs Imitations – What’s the Difference? Best Guitar Wire – What Should I Use? Proper Guitar Grounding — How Do I Do This? DiMarzio Virtual Vintage Blues 2 Wiring Diagram; Tone Control Capacitor – Choosing the Right Value for Your Guitar; 3 Way Switch vs 5 Way Switch — Advanced Stratocaster & Telecaster Wiring What I'm still trying to learn/understand is the difference in power ranges of tubes and types. Line 6 412 VS (V30s) 6CA7 and EL34s. Standard; Grade A vs. 98 Buy YAQIN MS-110B 54WPC KT88 Vacuum Tube Integrated Amplifier Buy RS PRO, Thermionic Valve Base Octal for 6550, 6CA7, 6P3P, 8-pin vacuum tubes such as EL34, KT88 . The KT88 fits a standard eight-pin octal socket and has similar pinout and applications as the 6L6 and EL34. After the 6ca7 hit the market, the British countered the 6ca7 with the KT77. It is easy at least on my amp. sorry for the jaded results Lasse. RCA and Sylvania first introduced the 12AX7 to the world in the late 1940s. The bottom line here is with the mod's you can get them to work, but it won't be like a KT88 running at a throaty 65-70 per cent dissipation. ECC83. SUBSCRIPTS FOR MULTI-UNIT TUBES: b = Beam Power Unit. I've gone back and forth from EL34s and 6l6s. not bad at all. The simple answer would be a KT88 will produce more power than an EL34. FEATURES Most output valves in HiFi valve amps (40 Watt and less) are Cathode biased in the same way that pre-amp valves are biased. I designed a KT88 PP amp and used EH KT88s. Audio tubes are a specialized breed and as such, we feel it necessary to create separate listings and pricing for these tubes. Like them very much. I already have my share of EL34s and 6CA7s. 微妙な差だね。kt88は余韻の残る艶やか高音の響きと迫力の中低音で、割とゴージャス感のあるサウンド。kt66はそれを若干大人しくタイトにした感じで、kt88と比べるとナチュラル感があるかな。要するに極論から言っちゃえば、見た目通りってことだ。 微妙な差だね。kt88は余韻の残る艶やか高音の響きと迫力の中低音で、割とゴージャス感のあるサウンド。kt66はそれを若干大人しくタイトにした感じで、kt88と比べるとナチュラル感があるかな。要するに極論から言っちゃえば、見た目通りってことだ。 Re: Yaqin MC-100B Nice Amp! hi guys. every so often I get the urge to try something else. The EL34 is a pentode, while the 6L6, which delivers a similar range of power output, is a beam tetrode which RCA referred to as a beam power tube. so, if you like power amp saturation, don't go with them. The specs are the SAME as a KT88, except the TT21 has a HIGHER PLATE VOLTAGE maximum rating. Im looking for an answer to a question but would also like to see some dialog from people about their likes and dislikes and why. 95. 5w 6j1 fu32 hi-fi オーディオ ステレオ プッシュ ミニ 真空管アンプ 自作キット 300b 真空管アンプ 300b 真空管アンプキット 6j1 真空管アンプ 845真空管アンプ Bluetooth 真空管アンプ a級プリ audiophiles Tube - Valve comparison chart. Matched pair PSVANE Vacuum Tube 6CA7-T shenzhenaudio. Shopping for Cheap KT88 & EL34 Push-Pull at HIFI EXQUIS and more from tube amplifier hifi,class a tube amplifier,tube amplifier,amplifier box,amplifier installation,amplifier dj on Aliexpress. Audio Vacuum Tube List. Re: Gold Lion KT88 vs Electro-Harmonix KT88 tubes by Lamkochai on Thu Aug 20, 2009 5:57 pm i regard the tube as a component so if i were you i will pay for the quad set even they are more expensive than the amp price. KT88 vs EL84 vs 2A3 vs 300b and on and on. When it comes to tone, they do have a big impact. About EL34 Tube. p = Pentode Unit. 1590 West Algonquin Road #111 Hoffman Estates, IL 60192 Voice Phone 847-496-4546, Monday-Friday 8AM to 4PM USA Central Time 6CA7, 6P3P, 8-pin vacuum tubes such as EL34, KT88 RS Stock No: 678-4098 Product Details RS Pro Thermionic valve base is compatible with octal and B9A based thermionic valves. even you get an amp which cost almost the same with your current amp+upgrade tubes, i doubt it will sound better than the latter. Keep in mind, I am not slighting the Treasure Series 6CA7 — I still preferred them to my usual tubes. 6550/KT88 385 V . $ 118. com! COSSOR VALVE KT88/6550 made by PSVANE Hi-end Vacuum tubes best matched Pair. No one can tell you what differences you may perceive. Most SPICE model links are to Dave Cigna's stash of SPICE models provided by Francesco Piazza- these are marked DC. So bias setting should need The Elekit TU-8200 tube amplifier kit ships with Electro-Harmonix 6L6GC power tubes, but will also accept a wide range of other power tubes such as 6CA7, EL34, KT66, KT77, KT88, 6550 (and more) with no modifications and no need to re-bias. EL34 Electro- Harmonix Matched Pair. Same with a KT88. Specifically designed for audio amplification, the KT88 has similar ratings to the American 6550 which was designed for use as a servo amplifier. Forty watts per channel, Class AB Integrated Stereo Amplifier with EL34 output power tubes, 12AX7 and 12AU7 input tubes. Радиолампы KT88, KT66, 6550, 7581, CV345, CV1075 в наличии "NOS" 6C45Pi-E Sovtek, 6CA4 Electro Harmonix, 6CA7 Electro Harmonix, 6CG7/ 6FQ7   Results 1 - 10 of 10 The most common types of 6550 tubes and their European equivalents used today include: 6550 - Tung-Sol developed the first 6550 tube in  Even though the EL34s will plug right in and work, we do not recommend transformer impedance match is not correct for EL34/6CA7/6550/KT88 type tubes . We also offer current draw options for higher and lower gain output valves. I also notice the difference between KT88's and 6550's in bass amps. Big tight bass, great mids, smooth highs. Electro-Harmonix KT88 Vacuum Tube High power kinkless-tetrode for use in amplifiers such as the Marshall Major. EL34 produces smooth highs with pleasant mids in guitar amps. Dynaco screwed up large designed around a dead valve, they obviously had no concern about future maintenance. If your tube isn't listed then pick one with the same Max Dissipation Rate which is shown to the right in the tube list. im also a proud owner of yaqin mc-100b. SED KT88 / SED 6550: in all amps where   The 47K matched resistors in the grid circuit of the output tubes may be made a higher value (up to 100K for 6550,KT88 or large bulb 6CA7, up to 220K for "thin  (biggest problem is that the base clips usually won't fit KT88 or 6550) and by installing a simple jumper, both 6CA7 (fat bulb ) & EL34 (skinny bulb) tubes, too! have meaty terminals to accept components and wires without complaint and tube socket ever made for 6L6GC, 6CA7, EL34, 6SN7, KT88, GZ34 etc tubes  Audio Vacuum Tube - Feel real heat and light of music. 6550 / kt88 / kt90 KT88's generate a lot power, handling significantly more plate voltage than other power tubes. Of course, now that all these tubes are being built in eastern European and former Soviet countries, all bets are off as to how they compare to the original English and US tubes' specs. It is direct heating cathode and low power consumption. This is the "my opinion part": I've converted EL34 designs to 6550, and I've converted 6550 designs to EL34. I have also adjusted the bias pot while playing through the unit and find that if the the bias is turned down. 19 Jan 2018 What are your favorite new production KT88 and 6550 Power Tubes? . Quantity: Psvane 6CA7-TII Premium Grade Treasure tube. 真空管の写真. Vacuum Tubes. Check out the following tube reviews for guidance in getting the best possible tone out of your tube gear. It's funny, because the Diezel Service Manuel I have says not to use "big bottle" tubes like 6550 or KT88. 5Z3. Psvane 6CA7-T has exactly the same electronic specification as the Treasure 6CA7-Z but has gold coated pins and gold coated tube base. Standard with EL34 output tubes. 6CA7-Z is very similar with EL34, which can be replaced by each other. Class-A Ultra-Linear 12SL7 SRPP / KT88 SIPP Tube Amplifier. See the Unofficial Univox page; Also see the Schematic Heaven archive; Vox. A bit farther along on the Acoustic Sounds web site the manufacturer literature states that that the SA-70T amplifier uses auto bias. $119. or the JJ KT88's if you want to go that route. We burn in and test / screen all JJ valves for all possible faults and tonal quality. kt88 vs 6ca7

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