NC. Ottawa. Brand New. 50 Off. The attached file contains the new layout. Specifically in the manual, it states "6550 tubes will NOT work in this unit. If you wanna get more power out of the KT88: run in tetrode mode at 420-450V on the plate, 150-160V on g2 (some types might need 10-30% more) and adjust the bias for 80 mA anode current into 4-5K. 00 or more. Switched kt88 tubes from JJ to Gold Lion - best sounding unsure. amplifier. Frequency response: 20Hz-25KHz. Does anyone know the provenance of these valves and perhaps the detailed specification?NO ADDITIONAL COST: You pay $0 for repairs – parts, labor and shipping included. NO ADDITIONAL COST: You pay $0 for repairs – parts, labor and shipping included. 1188 Kilwinning St is a 1,397 square foot house on a 6,011 square foot lot with 3 bedrooms and 1. (This equation will also be affected by the screen voltage (Vg2) and bias point*, so you want to have. Free shipping. Introduction KT88 Digital Brain Electric Activity Mapping collects EEG signal with electrodes, via integrated amplification, A/D transformation, PC auto-analysis, FFT, to form electroencephalogram that displays with color depth. Buy Kohler KTP-88 online today and save. It is far more reliable than the JJ KT77, and even more beautiful sonically. Daftar Segera dan Raih jutaan Rupiah Setiap Hari Di KTP88 Indonesia indonesian. E. They seem to be able to take high voltages well and sound great. TU-8200R ships with a R-core power transformer that supports 4 different voltage environments 100V, 115V, 200V, and 230V. +. $185. KT88 is a beam output pentode with an octal base and power of 42W. New Plate Current Matched Quad of Psvane KT88-T Classic MKII Series (6550) Vacuum Tubes. It is very musical and with a frequency range balanced from top to bottom. You want THUNDER from your vintage Ampeg SVT?Buy Willsenton R8 KT88/EL34 x4 Tube Amplifier Integrated AMP Power Amplifier Headphone Replaceable Basic Meter (Silver): Amplifiers - Amazon. 4. Daftar Segera dan Raih jutaan Rupiah Setiap Hari Di KTP88 Indonesia indonesian. Purchase Tung-Sol KT150 vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. TAD just announced that they now have stock of the newest addition to the REDBASE-tubeline - the KT88-STR REDBASE. - ref. $68 Off. By the late 1950s there was a large selection of stereo hifi audio tube amplifiers available. LTspiceで 真空管. When using KT-90's instead of KT-88's or 6550's, you need to understand what the bais range of your amp is. Psvane. KT88 Pinout. Next, would upgrade the KT88 to Kt120. For more information about tube power supplies, see Power Supply Design for Vacuum Tube Amplifiers. Mullard KT-88 Before buying any power tubes you need to know this: Upscale Audio pays more for our tubes than other companies. , Genalex Gold Lion. Quantity *. The frequency response ranges from 5Hz to 44kHz, which is more than necessary to get the most out of high resolution digital tracks. They are at least 1/4" away. Nobody pays attention to your tube purchase like Uncle Kevvy. 6550, CK6550, KT90. Among the largest in its class, this. A quick note on this tube: These tubes seem to take a bit. Ovovegas situs judi. $40. Categories. Pusat Info. $269. KT88 Types. The cool thing about it is that it is easily interchangeable with most 6550 amplifiers and can be interchanged in most EL34 based amplifiers with quick, easy mods. Put them in a dish (not covered) in a cold oven and turn on - bring up slowly to 150 degrees celcius and keep there for 4 hours. Description. Returnable until Jan 31, 2024. K. This tube is a favorite of audiophiles. From my research (accepting that these are very broad characterizations) the EL34's strength is the mid-range while the. f. Here are the specs: Willsenton R8 Class AB integrated tube amplifier. Ovovegas situs judi online yang. 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. This unique HPCC coating is known as High Polymer Carbon Compound. The low-end is a bit muffled - but not flabby. KTP88 | Situs Judi Online Terpercaya | Casino Online Terbesar. 2013-07-12 7:27 pm. **SERIOUS INQUIRIES ONLY — NO TRADES**For sale: (1) Willsenton R8 KT88/EL34 x4 Tube Integrated AMP Power Amplifier w/stock tubes (1) Oroginal Factory Box (1) Remote ControlJust about everything you need to know about. The KT90 is one of several latter day hybrid tubes not really part of the GEC Kinkless Tetrode family, e. Power Supply - DIY Single-Ended KT88 / 6L6 / EL34 / 6CA7 Tube Amp. 69. After trying the crop of present makes in power and signal, I am now switching between Gold Lion KT88 and their KT77, and for signal tubes, NOS Brimar and Mullard. Brand: Electro-Harmonix. Put them in a dish (not covered) in a cold oven and turn on - bring up slowly to 150 degrees celcius and keep there for 4 hours. Higher power output tubes such as KT120 and KT150 will be considered for. Under the influence volvy version - mbapoll. Additional Information and Downloads. First look at the 6550 & KT88 Power Tubes and a discussion on the differences with the EL34 Power Tube. FREE delivery Sep 22 - 27. Single or Matched *. C, also labelled as IEC/Mullard, and, in the U. " [2] Despite having several disadvantages [3] compared to modern transistorised ( solid state) equipment, a valve sound is. Never used, bought years ago as backups and never had to use them. - good damping factor near to transistor amp. The resistors are 15 watts and dissipate a little over 3 watts apiece but still get hot. KTP88, sebuah platform judi slot online terpercaya, telah menjalin kerja sama erat dengan Pragmatic Play, salah satu penyedia game terkemuka, untuk menghadirkan koleksi game yang tak hanya menghibur, tetapi juga menguntungkan. 95. Pusat Info. New & NOS power tubes from Mullard, Tung-Sol, Telefunken, Sino, GE, Telefunken & more! Our KT88 tube sets are precision matched on our custom equipment and hand-selected by our staff for the best results. The cost of including a handmade Rega cartridge would just place the Planar 1 & 2 out of the. 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. 395vAC (under . V. From my research (accepting that these are very broad characterizations) the EL34's strength is the mid-range while the KT88/6550 has more power and a broader range but maybe slightly at the expense of the EL34's excellent mid-range. . China Psvane HiFi KT88. Due to many requests by fans of our Tung-Sol line of tubes, the Tung-Sol EL84/6BQ5 has been reissued. Just like the GEC KT88, this one has a rounded and more bass-heavy sound than the 6550. Power transformer is multiple tap so B+ can be anywhere from 400 to 500V. KT88 is an amazing tube that can produce boomy and louder bass. 2003-08-06 2:51 am. The limitations of the free Guitar Rig 6 are in the options of cabinets, effects pedals, positioning, presets and other options. Different rating or performance. $150, few years ago I would have gotten a set for ca. The KT88 is one of the few classic audio output valves. John3655, jonwoody, FalseMetal666 and 1 other person like this. Use of these parameters shall be entirely at the user's own risk. or Best Offer. Guitar Rig 6 Player Interface. In terms of total system-SINAD, the difference between the 'cleanest' SS amp and the 'worst' tube amp is below 1dB SINAD (probably closer to 0. In their 30th year as a company, Tube Amp Doctor has expanded its REDBASE tube family with a new exclusive and high-quality premium tube model, the entirely new TAD KT88-STR REDBASE. The KT88-Z tube's construction features gold grid wires and a new internally coated black glass bottle. 44. Very powerful, with strong bass and very bright highs. · 64-Voices -- Play bigger chords or longer sustained passages. Shop the best selection of top-quality tube amps at unbeatable prices. From €73. Brand New Matched Pair w/ 24-Hour Burn-in! Brand New. I haven't seen them in a while but they may still be sold under that brand. 70. Report Listing to Reverb. The Cayin CS-55A KT is rated at 2×22 Watts into 8 Ohms and 2×40 Watts in ultra-linear mode. 05 x 4. The REDBASE features a gold control grid for outstanding low-noise performance and reliable stability. f. Bogner Shiva EL34 Reverb 80-Watt 2-Channel Head w/ ftswUsed – Excellent. My experience between the two is crisper highs with the kt88's and fuller midrange with the 6550's. I love them. Starting at $56. house located at 1288 Kingfisher Pl, Victoria, BC V9B 5T5 sold for $427,061 on Feb 18, 2008. These are manufactured in 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 en. This tube has perfect getter flashing, strong test results and the original box. MAIN SEKARANG LINK ALTERNATIF Dapetin RTP Live Terakurat Hari Ini 14-November-2023 Untuk Wilayah Indonesia Mencari rtp live hari ini? Selamat datang di KTP88 Situs Online Terpercaya Minimal deposit & withdraw Hanya 20 Ribu, Menerima deposit via Pulsa dan Deposit Via Aplikas Ovo, Dana, Gopay dan Link Aja. The KT88 is slightly more expensive, but as of this writing KT88's are easier to find than 6550's. KTP88 Slot Gacor Situs Terpercaya Dengan Bocoran RTP Paling Akurat Hot Games Slot :- Gates Of Olympus - Starlight Princess - Sugar Rush - Mahjong Ways2- Koi. 00. Had doubts about the bass having used them in a previous amp they sounded a bit thin there. Fits a standard eight-pin octal socket and has similar pin-out and applications as the 6L6 and EL34. The KT88-TK is a beam-power tetrode that shares similar applications as the 6L6 and EL34, and is one of the largest tubes in its class. To run your pentode/Beam in Triode you connect the plate to the screen with a 100 ohm resistor. com FREE DELIVERY possible on eligible purchasesThe rigorous quality control and durable construction yields a dependable tube ready for the most demanding applications. The technical specifications of the affordable GEC Kt88 vacuum tubes on eBay include: Maximum voltage: The maximum voltage handled by these tubes is 800 volts. The amp is auto biased. It was manufactured in the U. The KT88 audio tube is considered to be one of the best sounding power tubes for hifi tube audio amplifiers. K. EL84/6BQ5 REISSUED. 95. KOHLER PARTS KIT - Free Shipping on purchases totaling $50. Preferred Series KT88. The Guitar Rig is for many the best. 1. ) Power Vacuum Tubes. Nov 7, 2021. “The Beast” – is the only place to start if you’re after super high gain. Hal itu sebagaimana mengacu pada Undang-Undang Nomor 24 Tahun 2013 tentang. $200 but thought it to be too pricey. A. 95. PP - Loads of bass, somewhat scooped out midrange, outstanding dynamics, slightly blurry imaging, tizzy highs. Free Shipping. Selamat datang di KTP88 Situs Online Terpercaya Minimal deposit & withdraw Hanya 20 Ribu, Menerima deposit via Pulsa dan Deposit Via Aplikas Ovo, Dana, Gopay dan Link Aja. Made In. These tubes will work well in Marshall tube amps as a 6550 replacement, Ampeg amps, SUNN amps -. LOGIN DAFTAR. LOGIN DAFTAR. COVERAGE: Plan starts on the date of purchase. The amp went from a good amp to an unbelievable amp. 30-Day Return Policy. White. LOGIN DAFTAR KELUAR. Additional info. KT88 Types. Both are excellent durable tubes. But you can now buy the KT120, which has specs of 850v / 600v. Output Impedance: 4 ohm, 8ohm. BEAM PENTODE. 46. They run about $85/matched pair. Daftar Segera dan Raih jutaan Rupiah Setiap Hari Di KTP88 Indonesia indonesian. $25. Pusat Info. KT88 - Beam power tetrode. (Genalex) introduced the "King of Power Tubes", the legendary Gold Lion KT88. 73 out of 5) “Smooth clean highs, strong deep bass and all the other audiophile words we so endear. A breath-takingly big and precise tone and great appearance make the new TAD KT88-STR Redbase® the. This really works wonders with old tubes and doesn't cost you anything. Midrange & natural clarity to die for. MusicTeck. LOGIN DAFTAR KELUAR. The TELEFUNKEN Elektroakustik KT88-TK is a newly manufactured and cryogenically treated version of the legendary KT88. 28. One Matched Sextet of JJ Electronic KT88's. Mikael's KT88 single-ended design should make 7 or 8 watts per channel (mine come in at almost 8). HB Body produce a 2k clear in a can, they're based in Greece. Other input tubes can be used in the driver stage, the closest match being a 12AX7 which will provide more gain. KTP88 | Situs Judi Online Terpercaya | Casino Online Terbesar. 12AU7, ECC82 and ECC802S can. It is caused by minor impurities, such as cobalt, in the object. When designing the Classic Series, Psvane collected the most sought. Largely superceded the KT77 with a 40% increase in anode dissipation and a lower anode resistance with only a 15% increase in heater power. It has the same big and heavy glass envelope and beautifully polished. Pusat Info. Upscale Audio's Kevin Deal reviews the Gold Lion KT88. Hi folks, I have some faulty power tubes in my Laney Nexus tube head. Yvesm is right. - low distortion near to 0. TubeDepot carries a selection of 6550 / KT88 / KT90 Power Vacuum Tubes. 6J8P-J pre-voltage amplification. by the MOV ( Marconi-Osram Valve) subsidiary of G. Pcb for push pull amplifier with EL34, 6P3S, KT88 like final tubes and for input and phase spliter can be used ECC81, ECC82, ECC83, ECC88, 6N1P, 6N2P with necessaries modifications for filaments and other components. 300B. The KT88 was introduced by GEC in 1956 as a larger variant of the KT66. It didn't take long for tube amp designers to notice and quickly hifi tube audio amps from Heath, Dynaco, McIntosh, Fisher, Scott, and others could be found in living rooms all over America. We pay the factory to pre-test for us, and give us the top 50% of production. The TU-8200R has a built-in headphone jack that will deliver amazing tube audio to your favorite cans. The JJ KT88 delivers a powerful 42 Watts with plenty of headroom to spare. The KT88 spec is 800v / 600v maximum, whereas the 6550 spec is 600v / 450v maximum. Vacuum Tube - 6550, JJ Electronics. $57 Off. Selamat datang di KTP88 Situs Online Terpercaya Minimal deposit & withdraw Hanya 20 Ribu, Menerima deposit via Pulsa dan Deposit Via Aplikas Ovo, Dana, Gopay dan Link Aja. Gold Aero KT88 -. I bought a set of four perhaps 2005 or 2006 for ca. JJ Electronic - Vacuum tubes, Capacitors, Amplifiers. Add to Wish List. LOGIN DAFTAR. 49 Off. While not necessarily exactly the same, they will function as replacement items in your project. Due to its rugged construction and conservative ratings, it is the most reliable. Ovovegas situs judi online yang. This is a single TAD Tube Amp Doctor KT88-STR tube pulled from a new Blackstar Studio 10, it has less than an hour of use on it. What's worse is that the seller Tokban Audio refused to resolve the issue. TikTok video from ktp88 (@katiejanepavier). 2021-10-19 5:45 am. KT88-2400 Digital Brain Electric Activity Mapping collects EEG signal with electrodes, via integrated amplification, A/D transformation, PC auto-analysis, FFT, to form electroencephalogram that displays with. If portable, drops, spills and cracked screens due to normal use are covered from day one. IN STOCK - FAST SHIPPING - AUSTRALIA and NEW ZEALAND. As one of the most prominent audiophile vacuum tube manufacturers, Psvane’s designs have established a benchmark for clean and accurate sound reproduction, along with a build quality that matches their sonic performance. 7025 S Premium Selected -Mullard style- TAD-Tubes. Petersburg factory till 2012. The Cayin CS-55A KT88 comes with four KT88 power tubes, two 12AU7 preamp tubes, and two 12AX7 tubes. Introduction. 35 cores do to ensure stable power supply. LOGIN DAFTAR. The KT88 is one of the few classic audio output valves. What's worse is that the seller Tokban Audio refused to resolve the issue. €36. Steve. Output power will be about 5W. The board is double-sided and electrolytic capacitors will be fixed from the bottom side of the plate. 99. He stocks both Gold Lion and the Penta, but felt the Penta would handle the high plate voltage the best. Re: Output trans impedance for KT88. With a 380-0-380 PT, the voltage goes up to 525v, and with a 400-0-400 transformer, the voltage is closer to 560v briefly. Datasheet: 618Kb/8P. SH-KT88-98. The KT88 was introduced by GEC in 1956 as a larger variant of the KT66. 95. A breath-takingly big and precise tone and. Remove the output tube on that channel, turn the amp on and see if there is any positive voltage at the grid pin (leaky coupling cap). KT88. If not, swap the good tube to that channel, turn the amp on again, and measure DC voltage across a new cathode resistor. Shuguang Black Treasure KT88-Z. LOGIN DAFTAR KELUAR. Almost everything you see on eBay sold as new, is not. Pusat Info. In reading the data sheets seem like I can use a BF twin OT. It might be true that most new KT88 designs are really more similar to 6550. With 425 Volts on the anodes and a load of. Tube Amplifiers. The R8 is an amp that big companies who charge a fortune for their integrated amplifiers will despise. KR Audio KT88 Matched Quad. 00. We would like to show you a description here but the site won’t allow us. tzeng_albert (11,895) 100%. 35mm steel with OFC wires. (*)These specifications are provided 'as-is', with no warranty of any kind. Heater current: The heater current is 1. Change to G/L straight, don't look back. 95. [Italian version] Product name: Genalex Gold Lion KT88 Reissue. SHUGUANG KT88-Z Black Treasure / gold grid / HPCC coating / Super Alloy. amplifier. 36AM3. New Factory Tested Telefunken KT88 Vacuum Tube. Don't move those tubes out of the oven until they are cool. 00. The new KT Mono amp retains the high damping factor and low distortion of the Horn Mono but with enough power to handle inefficient and difficult to drive speakers. Cannot use 6550 in the Zesto Bia. 75 g / 2. Selamat datang di KTP88 Situs Online Terpercaya Minimal deposit & withdraw Hanya 20 Ribu, Menerima deposit via Pulsa dan Deposit Via Aplikas Ovo, Dana, Gopay dan Link Aja. • Direct replacement for any 6550 types. Audion Sterling KT88 Anniversary stereo is hard wired point to point using better graded components and larger, hand-built Audion wound output transformers (EI96). vandernog. My pre (Audio Mirror T-61) uses the 6n1p and is presently running a NOS RCA rectifier. 00 shipping. Results for kt88 tubes. Sophia Electric very resolving but the bass isn't quite there. Class-A Ultra-Linear 12SL7 SRPP / KT88 SIPP Tube Amplifier. KT90, KT120, and KT150 are higher-powered replacements of KT88. US Audio Mart is FREE! But we can use your Support. Nor, at 280lb in its flight case, is it likely to "go walkin'. The low-end is a bit muffled - but not flabby. 125 Watt KT88 Tube Amplifier. More detail could be heard in music I was familiar with. It is intended for audio frequency power amplifiers. Interesting, I love the Preferred Series KT88s in my Rogue M-180s. It was manufactured in the U. on said: Log in to Reply. Petersburg but at Reflektor factory in Saratov in same factory as Sovtek, Electro Harmonix etc. Output power, maximum output power of 8W+8W. deposit dan withdraw online 24 jam setiap harinya. Daftar Segera dan Raih jutaan Rupiah Setiap Hari Di KTP88 Indonesia indonesian. Finish. Daftar Segera dan Raih jutaan Rupiah Setiap Hari Di KTP88 Indonesia indonesian. The 1,397 Square Feet single family home is a 3 beds, 1. . 000 products in stock. Up for sale will be one matched pair ( 2pcs) of ShuGuang Treasure vacuum tubes KT88-Z (Substitution of 6550), packed in environmental protection box as picture shown, product of SHUGUANG Electron Group. A decade or so later, bass guitar tube amp icon. Joined 2007. 16. 4%. The CS-55A is the most recent advancement in tube amplifier technology created by Cayin. The Lion Doesn't Sleep Tonight. New Matched Trio (3) Linlai 6SN7 Hifi Black Plates Gold Pins Shouldered Vacuum Tubes. The heat rises into the chassis and caps remain cool. That's what you need really for spkrs >= 90dB. You can theoretically even run these triode strapped at 600v. are the KT88, KT100, KT120 and KT150 Tubes safely interchangable generally speaking in a well built tube amplifier? The KT120 and KT150 are both pentode devices and the KT88 and KT100 are described as beam tetrodes so no, I wouldn't think these can be easily interchanged even though the data sheets have the same "pin-out". The Lion Doesn't Sleep Tonight. Other input tubes can be used in the driver stage, the closest match being a 12AX7 which will provide more gain. Featuring two highly evolved channels, capable of clean tones that shimmer like icicles in the deep of winter moonlight and tube. The mids not as strong but I attributed that to just being more balanced. We’ll start this article by reviewing the best guitar amps at each price point, but if you want to learn more about amps before reading reviews, check out our guitar amp information guide at the bottom of the page here. Availability: Usually ships within 24 hours. I built a SE KT88 amp using decent quality but not top of the line parts and I would say my investment including using salvaged chassis and power cord was solidly north of $400. NIK ini merupakan susunan nomor identitas yang terdiri dari 16 digit angka, di mana tidak ada satu orang pun memiliki NIK yang sama. One is set up with kt88's and the other 6550's. 2014-11-09 5:42 am. Having great hi-end and lush mids - the Sovtek KT88 was designed to offer the highest output power and the most reliable - linear performance available in a KT88. It also has a balanced production of sound. Manufactured with plastic coil forms for coil support and insulation. 6CA7- ‘they are exceptional tubes’. Each. $32. 20pc 8PIN Vacuum TUBE SOCKET SAVER FOR shuguang KT88 6550 EL34B EL34A AUDIO amps. It can also be used in 6550 amplifiers. Because they have a lower power rating, 6550’s will cause DAMAGE to the power amp and the tubes. If it's midrange you're after, EL 34's are your better bet. As an integrated amplifier the Cayin 88T is an outstanding value. It has an intuitive and easy-to-use interface. ELECTRON DEVICES Svetlana Typical Operation Class A 1 (single tube) DC plate voltage 400 V Grid no. Brand New. The amplifier stage is based on the Compact Hi-Fi Power Amplifier by Melvin. Katie Parker. The KT88 spec is 800v / 600v maximum, whereas the 6550 spec is 600v / 450v maximum. According to this the tubes for it are 2 x 6N9P, 2 x 6N8P, 4 x EL34/KT88 and 2 x 5Z3P. View Product. アドバンス advance kt88s、フォノイコライザー付きkt88シングルアンプ アドバンスのkt88シングルアンプです。 各部電圧確認済み。交流発振器とオシロスコープで正弦波、矩形波ともにチェックし、フォノイコライザー、ローブーストボリューム、パワーアンプ部とも正常に出力されていることを. Two tubes can be brand new in the original box, with one testing at [as an example] 6500 micro. Berikut adalah 7 game Pragmatic Play paling gacor yang bisa Anda nikmati di KTP88: Wolf Gold Selamat datang di KTP88 Situs Online Terpercaya Minimal deposit & withdraw Hanya 20 Ribu, Menerima deposit via Pulsa dan Deposit Via Aplikas Ovo, Dana, Gopay dan Link Aja. KT88 CHARACTERISTICS Tetrode Connected 250 250 3 (approx) 15 (approx) pg1—g2 Triode Connected 250 15 (approx) 670 TYPICAL OPERATION Push-Pull. The amplifier stage is based on the Compact Hi-Fi Power Amplifier by Melvin. t = Triode Unit. LOGIN DAFTAR KELUAR. Switched kt88 tubes from JJ to Gold Lion - best sounding unsure. Electro-Harmonix KT88 Vacuum Tube High power kinkless-tetrode for. Overall I feel like this is a good upgrade and worth the expense. We have the Kohler KOHLER PARTS KIT you need with fast shipping and low prices. My amp came with EL34's, but I swapped them for KT77 JJ's (good and inexpensive) then eventually Gold Lion Kt77's (great and somewhat more expensive). ★三栄無線 Model KT88SSMA/KT88(UL接続) シングルアンプ（整備・動作品） ★三栄無線 Model KT88SSMA/KT88(UL接続) シングルアンプ（整備・動作品） 秋葉原にあった老舗三栄無線からキット販売された銘出力管KT88のシングルパワーアンプです。 ≪主要パーツ等≫ ・前後12AU7の2段直結構成で出力部から最適. tags: Mesa , Axe FX , Kemper , line6 , digitech. The tube has a high power and low loss, and the sound quality is very good with this tube. I explain the circuit. A modern re-creation of the legendary Genalex KT77. Anode current = . 7025 WA TAD HIGHGRADE Premium Selected. Rare, from the Svetlana factory in St Petersburg Russia, no longer in operation. This tube has a tone that is warm and lively with a detailed and balance response. Looking at the data sheet for the Penta/Shuguang/Ruby KT88V-STR, the max anode dissipation is 50 watts! Compared to the regular 42 watts or even 35 watts on some more common KT88 data sheets that seems pretty high and really makes a big difference (about 10 mA) for the bias calculations. Ro_S. Their KT88-T Classic MKII (6550) is famous. 599 or $1800 for a matched quartet (4) - Making each tube valued at €399 / $470. One has to allow increased currrent spread esp at high heater volts, bear in mind heater volts spec is from +/- 0. Named a Hi-Fi News Outstanding Product, Stereo 40 MkIV is a glorious-sounding piece unique in build quality, visual presentation, versatility, and feature set. Cost: €55 each ( Currency conversion) ( YMMV) Reviewed: April, 2015. Output power will be about 5W. Free Shipping. LINLAI WE300B Western Electric Replica Tube. Running the EL34 at ~420. KRON Audio KT88 factory matched PAIR - €350 / $412. Cost: €55 each ( Currency conversion) ( YMMV) Reviewed: April, 2015. - no electrolytic capacitors. 3 volts.