Too much sybalance ultra clear mids can sound thin. Please see the substitutes at the top of the page for more details. Singlevalveplate type with significantly different construction to the original rca 2a3 a. Shuguang 300b98b 1pairlot vacuum tube shuguang tube. In14 nixie tube excellent used 100% working in14 14. Jun 12, 20 the 2a3 is an audio power triode that is still used in amplifier designs. An inherently mellower design like fang bians planarmagnetic he5le enjoyed an infusion of luster and excitement by riding the shuguangs uncut treble energy.
They are fairly truncated in the low end and although the high frequencies are not brittle like other chinese production tubes they simply seem to lack character and harmonics. Beautiful air and detail in the highs that is never bright, smooth mids, tight bass. The shuguang treasure as a result of shuguang s 50year of expertise in vacuum valve design and production. Examples of these valves are the tjfull music 2a3 and the shuguang 2a3s. According to information from shuguang, the original factory started in 1958 as changsha shuguang.
The shuguang 845c tube is a great upgrade for any 845based amp. 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. The 2a3 is normally used in a pushpull arrangement and care needs to be taken in the bias settings for each valve as a small change in grid bias will greatly alter the standing anode current and any mismatch will impair the reproduction quality. Typically these valves due to higher ht tolerances also have substantially higher plate wattages which can be listed e.
Yaqin ms6v6 class a vacuum tube hiend headphone tube integrated amplifier us. Before shuguang came out with the 2a3b the sovteks have often being considered the best bang per buck for a 2a3. The emissionlabs 2a3 s is a high power version of the standard 2a3. An inherently mellower design like fang bians planarmagnetic he5le enjoyed an infusion of luster and excitement by riding the shuguang s uncut treble energy. Svetlana sv6l6gc high performance audio beam power. Without modifications, you just plug in this tube into any normal 2a3 amplifier, and tube and amplifuer will work at the normal 2a3 operating point. The shuguang show a clear superiority to the cheaper valves available the various carbon plate and even the better sovtecs. But this one is not an exact replica of western electric 421a equivalent to 6sn7. Theshuguang treasure as a result of shuguangs 50year of expertise in vacuum valve design and production. The 2a3 is an audio power triode that is still used in amplifier designs. These tubes come factory matched, but we still test them ourselves on the amplitrex at tube tester to make sure you are getting the best match possible.
Ua 450 v wa 40 w maximum plate curent of everage tube for fixed bias ia 70 ma maximum plate curent for manually adjusted grid bias or selfbiasing ia 100 ma. The treasure series 50th anniversary range was released in december 2008. Pair shuguang 2 x 6n1 6n1p 6h1n replacement vacuum. Svetlana sv6l6gc high performance audio beam power tetrode t. Modern manufacture reproduces this directly heated design. Close manufacturing specification tolerances and improved processing provide improved reliability and superior sonic performance. Other 300b versions several other versions exist, ranging from a lower power 300bmesh tube, to the higher power 300bxls tube, or even the very high power 520bv3 tubes. Now shuguang has taken their place, for almost the same price you get a neutral yet dynamic tube that tends to add some form of tube sound coloration as well as the speed and dynamic of the solid state. Radiotron model uv 200 vacuum tube rare experimental use only. We do not refer for this to new made replicas, by a usa company, from 1997 onwards the 300b tube has less interaction with the speaker system, as smaller tubes like the. We are the direct agent of shuguang and ngg vacuum tube manufacturers,we can supply the different types of tubes,including 12ax7,6l6,el34,kt66,kt88,300b,2a3 etc. Silicon npn triple diffused planar transistoraudio and general purpose, 2sc3858 datasheet, 2sc3858 circuit, 2sc3858 data sheet. Kt88s returned by consumers, shuguang improved their.
While much of their production is mass produced and not subject t to rigid quality controls and priced accordingly, they have recently begun to produce much higher quality tubes in limited quantities which they refer to as their treasure series. We are the direct agent of shuguang and ngg vacuum tube manufacturers,we can supply the different types of tubes,including 12ax7,6l6,el34,kt66,kt88,300b, 2a3 etc. Singlevalveplate type with significantly different construction to the original rca 2a3a. Psvane is a brand name owned by a private group of audiophiles inside and outside of china together. Trending price is based on prices over last 90 days. Datasheet search engine for electronic components and semiconductors. At higher bias though, the tube can produce 2x the output power. Please note that the shuguang 845c tube is a metal plate design and has a 70w maximum plate dissipation.
Svetlana sv6l6gc high performance audio beam power tetrode he svetlana sv6l6gc is a glass envelope beampower tetrode intended for highpower audio amplifier service. Direct heating cathode, medium power consumption triode is used for class a amplification. Big bass really nice top sylvania 6sn7gta chrome dome. The shuguang factory in china is currently responsible for approximately 40% of the worlds production of vacuum tubes. Shuguang nature sound series products were successfully listed in may 2o12. These are soft sounding and have a mushy feel when compared to a real genalex kt66.
This is in accordance with the historical we data sheet. Order genalex gold lion px300b vacuum tubes online, in stock and ready to ship. Similar problems are reported by mark wheeler in his. Shuguang beijing vacuum tube datasheet analog metric limited analog metric limited email.
It is probably the most asked question, and for this we refer to the one and only genuine 300b, as made until 1988 by western electric itself, in the hawthorne plant in cicero, illinois, usa. In the treasure series range there are over 60 parts differences versus the generic. Shuguang we6sn7plus black plate curvy vacuum tubes pair or single well, seems we replica has been a theme for tube manufacturers from china. Sanken, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. The plate can do 28watt, but to get this, you need to modify the amplifier. In fact listening hard i began to prefer the shuguang even to the krs theres something very unforced about them, and an openness and lack of. Lots of treble and clear mids ge 6sn7gtb side getter. After many years designing single ended amplifiers i have decided to start a series of test about the push pull amplifiers. Shuguang beijing vacuum tube datasheet analog metric limited.
The sovtek 2a3 tube is a high quality tube at an affordable price. Up for sale will be one matched pair 2pcs of shuguang treasure vacuum tubes 300bz substitution of 300bc,300bs,300bt, packed in environmental protection box as picture shown, product of shuguang electron group. Ua 450 v wa 40 w maximum plate curent of everage tube for fixed bias ia 70 ma maximum plate curent for manually. The new series including kt88t, 2a3ct, 211t, 805t, 845t. The new shuguang 845b is an amzing tube, but dont take my word for it.
The rumor of a shuguang 6550 with a cigarette butt. The 1943, 1949 and 1959 sylvania tube manuals online. Now shuguang has taken their place, for almost the same price you get a neutral yet dynamic tube that tends to add some form of tube sound coloration as. Two triodes can be used for class a and ab amplification. They also noted excellent midrange imaging, and overall tonal balance. It is dedicated to be used in audio frequency range which requires the output power 100w. The fja09 is a 700 v 12 a npn silicon epitaxial planar transistor the fja09 is designed for high speed switching applications which utilizes the industry standard to3p package offering flexibility in design and excellent power dissipation. The av 2a3 sl is a direct replacement for the rca 2a3 monoplate tube. Power derating tc, case temperature c p d, power dissipation watts safe area curves are indicated by figure 5.
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