Jan 05, 2009 i just put a fresh quad of shuguang kt88 98 tubes in. Shuguang beijing vacuum tube datasheet analog metric. Specifically designed for audio amplification, the kt88 has similar ratings to the american 6550 which was designed for use as a servo amplifier. Quad matched shuguang kt88t natural sound valve vacuum tube. Home shuguang tube beam tetrode shuguang gekt88 kt88 kt8898 vacuum tube prev next shuguang gekt88 kt88 kt88. Shuguang, chinas oldest and largest manufacturer of vacuum tubes has been in business since 1958. Kt88 is a low distortion, high output power tube developed specifically for audio.
Unfortunately, genalex ceased tube production in the early 1980s and the genalex gold lion kt88 has become very expensive. We stock kt88 tube sets that are precision matched. Gold lion kt88 made in england draft of new spec sheet 4302002 beam tetrode 63v indirectly heated the kt88 has an absolute maximum anode dissipation rating of 42w and is designed for use in the output stage of an a. Direct heating cathode, medium power consumption triode is used for class a amplification. Octal u f 6,3 v i f c a1,6 a typical characteristic. The kt88 shuguang has an absolute maximum anode dissipation rating of 50w and is designed for use in the output stage of an a.
The kt88shuguang has an absolute maximum anode dissipation rating of 50w and is designed for use in the output stage of an a. Quad matched shuguang kt88t natural sound valve vacuum. According to the manufacturer the gold lion kt88 is an attempt to recreate the original genalex, which was introduced in 1957. Two tubes in class ab1 give a continuous output of up to 120w. Definitely the use of carbon is not recommended by me. Posted on june 8, 2015 june 8, 2015 ella push pull el34kt88 amplifier schematic. Ella push pull el34kt88 amplifier schematic diy hifi supply. Kt88z shuguang treasure matched quad 4 pcs true treasure as a result of shuguangs 50years of expertise in vacuum tube design and production. According to information from shuguang, the original factory started in 1958 as changsha shuguang. Increased peak cathode emission from new cathode materials. The new series including kt88 t, 2a3ct, 211t, 805t, 845t,cv181t. Watford valves, one of europes leading suppliers of tested, graded and guaranteed valves to the professional music industry. The figures given are for single ended use, but the valve is almost invariably used in push pull pairs. It is dedicated to be used in audio frequency range which requires the output power 100w.
Kt88 beam power tetrode t he svetlana kt88 is a beam power tetrode having a large standard octal base and glass envelope. This power could be considered low for a pair of kt88 but i want low feedback, low distortion and good damping factor. 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. Using only a pair of kt88 i have got 25w in triode connection and 3540w using the ultra linear configuration. Super radiotron valve manual, amalgamated wireless valve co. The last valves mov produced after a run of 28 years 1956 1984 were branded gold lion and here this russian tube made by genalec carries the same branding, but this valve has been made for the modern audio market. A favorite among hifi audiophiles, provides excellent value for the price. Kt88 datasheet, kt88 pdf, kt88 data sheet, kt88 manual, kt88 pdf, kt88. Gemtune gs02 kt88 vacummtube amplifier with kt882, 6n8p2, 5z3p1. Search for shuguang kt8898 audiogon discussion forum. Its exclusive screengrid radiator fins reduce a major source of. As of 2018, kt88 valves are produced by shuguang china, jj electronic.
Today, there are a number of quality kt88 tubes available for audio and guitar applications. These kt88 specifications are provided asis, with no warranty of any. Shuguang black treasure series kt88 octet set tubes audiogon. Jean hiraga 12ax7 ecc83 singleended kt88 tube amplifier schematic. Two valves in class ab1 give a continuous output of up to 100w.
High voltage safety ez260 gallery hammond chassis grommes 260a schematic ez260 schematic kt88 datasheet 6l6gc datasheet 12au7 datasheet 5u4gb datasheet 0b2 datasheet edcor power transformer edcor output transformer edcor choke diy audio thread ugly signal thread. Home schematics ella push pull el34kt88 amplifier schematic. Using my ken ballrewired beyerdynamic t1 on the woo audio model 5 to compare shuguang s treasure against their oem golden jazz, i. With a goldplated molybdenum alloy grid and carbon coated screen grid, the svetlana kt88 is the finest power tube of its type be ing manufactured today.
Shuguang treasure series vacuum tubes 6ca7 and kt88. Matched octet8 shuguang black treasure series kt88z premium grade tubes in luxury factory boxes 2 per box, 4 boxes total. Sometimes we are in stock of everything, sometimes inbetween deliveries but we can usually restock quite quickly. This item gemtune gs02 kt88 vacummtube amplifier with kt882, 6n8p2, 5z3p1 nobsound 6p1 6. The kt88 is a beam tetrode k inkless t etrode hence kt vacuum tube for audio amplification. I have two other tube amps, a rogue chronos magnum and a decware mini torii that puts out 3. To get the best sonic result there are no electrolytic capacitors on the signal path and in the anodic power supply. Most of the datasheets are in pdf format and some are links to other html pages. We have a large selection of kt88, kt90, and kt120 vacuum tubes in stock. Shuguang nature sound series products were successfully listed in may 2012. The kt88 is also suitable for use as a series tube in a stabilised power supply. Shuguang kt8898 beam tetrodekinkless tetrode tubes, factory. New in boxes only opened to check shipping condition.
The kt88 is used in a number of projects that i have built. The treasure series 50th anniversary range was released in december 2008. We are adding back in kt88z, 6ca7z el34, 300bz, cv181z exact replacement of 6sn7 and the most recently 6sl7z exact replacement of 6n9p models of shuguang treasure black bottle tubes with our newly formed quality control collaboration with shuguang tube factory. Dec 25, 2015 kt88tii is clearly the better tube posted on december 25, 2015 by admin. This was identical to the shuguang built golden jazz variant marketed as create audiosynergy hifi. As a headphone amp bottle, shuguangs treasure 300bz in a circuit implemented as well as woo audios has the necessary operational quietude to prevent annoying self noise. I require 70% downpayment and can usually ship the completed amplifier within 1214 weeks. In general, the kt88 tube has a magical midrange similar to the smaller el34 tube, but with low and high end extremes that reach much further. Gemtune gs02 kt88 vacummtube amplifier with kt882, 6n8p2. With a number of different kt88 tube amplifiers we have had good results using new production jj kt88 blue glass and genalex gold lion kt88 tubes.
Kt88 datasheet, kt88 pdf, kt88 data sheet, kt88 manual, kt88 pdf, kt88, datenblatt, electronics kt88, alldatasheet, free, datasheet, datasheets, data sheet, datas. Jun 11, 2006 best kt88s specifically for vac auricle musiblocs im using a kt88 based amp for the first time the. They are what rogue ships as standard issue in their amps. Jean hiragas singleended kt88 tube amplifier schematic with 12ax7 ecc83 tube input stage. The shuguang treasure is ok in these amps, but i would recommend for best performance in a kt88 the solid plate pentashuguang kt88sc or even better, some nos tung sol 6550snot the russian t. In the treasure series range there are over 60 parts differences versus the generic. This tube became the heart and soul of such classics as the dynaco mark iii, mcintosh mc275, and marshall major. The kt88 fits a standard eightpin octal socket and has similar pinout and applications as the 6l6 and el34. What are your favorite new production kt88 and 6550 power. I comes with a brand new quad of shuguang golden voice kt88 output tubes and three cv181z tubes up front. Shuguang treasure kt88z vacuum tubes matched pair vacuum. The kt88 is one of the few classic audio output valves. Gemtune gs02 tube amp has a well balanced, colorful tone with strongly defined lows, mids and smooth highs, compatible and can work well with most speakers, specially perfect to play vocals, symphony, and classical music, definitely a good choice for audiophiles. The power dissipation of beam power tube kt8898 can deliver power of 42w.
The jj 6550s dont make as much power or sound as fat and thick as the jj kt88 but they definitely fill the void between a 6l6 and a kt88 that is second to none. Jul 03, 2012 the shuguang treasure is ok in these amps, but i would recommend for best performance in a kt88 the solid plate pentashuguang kt88sc or even better, some nos tung sol 6550snot the russian t. I designed a driver pcb using two 6sn7s that can drive just most tubes, triode or pentode. Shuguang treasure series vacuum tubes 6ca7 and kt88 audiophile. Svetlana technical data kt88 high performance audio. I use electro harmonic kt88 s in my rogue m150 monoblocks. Kt88tii is clearly the better tube posted on december 25, 2015 by admin. Genalex introduced the king of power tubes, the legendary gold lion kt88. This was their 260a and it had some interesting things, for one it was not an ultralinear amplifier, and it featured a screen regulator if you could. This amp was designed mostly to work with kt88, 6l6, or el34 tubes in either triode or ultralinear mode. Specifically designed for audio amplification, the kt88 has similar ratings to the american 6550 which was designed for use as a servo.
The electroharmonix kt88 has excellent tonality, with a full bodied sound, and great dynamics. Awesome dynamic and open sound compared to whatever kt88 tubes were there before. Shuguang beijing vacuum tube datasheet analog metric limited analog metric limited email. But be careful, i remember him saying that not every amp with kt88 can accept kt120 as they draw more current. Oct 14, 2016 the kt88 is one of the few classic audio output valves. Theshuguang treasure as a result of shuguangs 50year of expertise in vacuum valve design and production. The pcb also includes a tubebased power supply, using 5u4 or whatever tube you like, and snapmount capacitors on the pcb. Nov, 20 after finishing the tubes4hifi st70 i started looking for a kt88 monoblock that had a lot of glass. The svetlana kt88 is manufactured in the svetlana factory in st.
Below youll find tubes by tungsol, genalexgold lion, northern electric, shuguang, shuguang treasure, electro harmonix, jj electronic, and preferred series. This tube majors on separation, bandwidth and articulated attacks. Shuguang black treasure series kt88 octet set tubes. This series is the important product after the shuguang treasure series very famous black glass valves. Due to the high current and power capability of these tubes, it is very important that the kt88 tubes are well matched. Up for sale will be one matched pair 2pcs of shuguang treasure vacuum tubes kt88z substitution of 6550, packed in environmental protection box as picture shown, product of shuguang electron group. Most of the parts are in stock except transformers.
The kt88 has an absolute maximum anode dissipation rating of 42w and is. With an anode to anode load of 4,000 ohms and 550 volts on the anode a pair run in ultra linear ab1 will deliver 100 watts at 3. With black coating, purpose of the coating unknown. Svetlana technical data kt88 high performance audio beam. Comparing the psvane tll to penta lab, generic good shuguang and the great gold lion the psvane kt88ll is clearly the better tube. The general character is taut and lit up and as such, quite the antidote to pipe n slippers ideals. The kt88 is a commercial version of the cv5220 and is similar to the 6550. Matched octet8 shuguang black treasure series kt88 z premium grade tubes in luxury factory boxes 2 per box, 4 boxes total. These are really the chinese 6550 in a different bottle and we cant recommend them for anything other than target practice or christmas ornaments. This will lead to low lifetime if combined with barium cathodes, and is only advised for thoriated tungsten tubes, ever since the history of tubes. The new series including kt88t, 2a3ct, 211t, 805t, 845t,cv181t.
Stereo class a singleended audio amp handcrafted b073zxz3z5 reisong a10 el34 hifi audio stereo tube amplifier singleend class a amp b07l4gl63n. Open for business music is a vital source of comfort, and it can help us get through these difficult and frustrating times. I came across many interesting amplifiers but found an odd ball one from grommes precision. While the shape of their bulbs matched too, the treasure glass was just a bit taller by about 5mm. Petersburg, russia, and is designed to be a direct replacement for any kt88, kt90, kt99 or 6550. Jean hiraga 12ax7 ecc83 singleended kt88 tube amplifier schematic jean hiragas singleended kt88 tube amplifier schematic with 12ax7 ecc83 tube input stage. When all said and done i dont think i would spend the extra money on a set of genalex or gecs, they are so expensive that i. The new kt88 features greatly enhanced sonic performance. It is one of the largest tubes in its class and can handle significantly higher plate voltages than similar tubes, up to 800 volts. The shuguang treasure as a result of shuguang s 50year of expertise in vacuum valve design and production. Mar 04, 2016 he just told me that this shop in kyoto has shuguang. Jean hiraga 12ax7 ecc83 singleended kt88 tube amplifier.
I use electro harmonic kt88s in my rogue m150 monoblocks. Pushpull kt88 class a amp with universal driver pcb. At the bottom of this page youll find some links to other tube datasheet sites. High polymer compound carbon hpcc coating is for the first time used on vacuum tube production. We have 300b, 2a3, kt66, kt88, 6ca7 and cv188 in the range. The kt88 is a beam tetrodekinkless tetrode hence kt vacuum tube for audio amplification. The kt88 audio tube is considered to be one of the best sounding power tubes for hifi tube audio amplifiers. Please see the substitutes at the top of the page for more details. Shuguang beijing vacuum tube datasheet analog metric limited. As of 2005 shuguang had developed 120 types of vacuum tubes, and manufactured over 70 million units. Shuguang kt8898 beam tetrodekinkless tetrode tubes.
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