Triode u a 450 v u g2 450 v w a 30 w pentode u a 500 v u g2 450 v w a 30 w grid no 1 circuit resistence. I will install the 2 new preamp tubes i recently ordered. I have not used them but the electrical current values of my gt matched set power tubes are 5 milliamps apart. Svetlana sv6l6gc high performance audio beam power tetrode t. Triode u a 450 v u g2 450 v w a 30 w pentode u a 500 v u. Block diagram, pinout and 6l6 circuit application inside. Presuming the groove tubes 6l6ge is in fact a longerlife tube as it should be, that should make up for the difference in price if youre looking at it versus say the svetlana. Standard russian 5881s i assume they were matched at 5, and had the letters adn under the word performance. Groove tube gt6l6geqm matched quartet power tubesgt6l6ge exclusive gt design. Datasheet of triodes, diodes, penthodes,tetrodes, vacuum tubes. Neither, for that matter, do fender who now own the groove tubes name, ruby tubes and a host of other companies manufacture tubes. The sovtek 5881wxt tube is a reliable beam tetrode delivering a warm, round tone that sweetens any vintage or modern guitar tube amp design.
The 6v6 is a lowoutput power tube 1218 watts often used in fender. High power type with more highs and lows than other 6l6 types. High performance audio beam power tetrode he svetlana sv6l6gc is a glass envelope beampower tetrode intended for high power audio amplifier service. I know tgp is not big on high gain amps normally, but this is one of the best i have ever played. Groove tubes gt6l6chp pentode our most recent release of a totally redesigned 6l6c featuring addition of pure nickel carborized black plate construction, this is the same material used on the classic rca black plate versions of the 50s. Groove tubes gold series gt 6l6 s matched power tubes medium 47 gt rating duet guitar amp tubes are slovakianmade with high power and very aggressive dynamic tone. We offer two types of groove tube selected valves the first is standard which is tested and selected by groove tubes using their in house selection and grading. Further improving the design, we added gts exclusive heat sink wings to the plate assembly. The svetlana sv6l6gc is manufactured in the svetlana factory in st. For over 30 years, groove tubes have been trusted and demanded by touring. The sovtek 5881 wxt6l6 wgc tube guide iii ok, you can skip to it as soon as ive finished writing it.
Big, bold, and extremely clear, 6l6 vacuum tubes are one of the staples of the guitar amplifier world. Fender literally wrote the book on electric basses, laying the foundation for musical innovation and evolution. Groove tubes 6l6ge reissue tubes, hype, or real deal the. Closest i could find around town was a set of the same tubes gt premium 6l6 r only with a matching of 4 and the letters kcn under the word performance.
Groove tubes gt6l6ge pentode this is our flagship gt tube, the one we spent nearly 4 years developing from scratch after purchasing the original general electric design, the original rca grid winding machines that made this tube, and tons of the original materials. Groove tubes started in southern california, and through innovative design, rigorous. What sovtek 5881 wxt6l6 wgc groove tubes fender mesa sovtek rating is best. This tube was originally intended to be produced here. Theyre 6l6b groove tubes and i cant find them for sale. We stock a large number of premium 6l6 tube types in matched pairs, quads and sextet configuration, ready to be plugged in. The ge is a faithful reproduction of the original clear top 6l6. In any other case, you should always have a qualified amp tech reset your amps bias whenever changing your tube type or rating number. The gt 6l6 s has also been described as sweet and punchy. Close manufacturing specification tolerances and improved processing provide improved reliability and superior sonic performance. Class a1 singl tube pushpull u a 250 v 270 v u g2 250 v 270 v u g1 14 v 17,5 v i a 72 ma 4 ma i g2 5 ma 11 ma r a 22,5 k. Substitutes are given as a guide only please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Svetlana sv6l6gc high performance audio beam power tetrode he svetlana sv6l6gc is a glass envelope beampower tetrode intended for highpower audio amplifier service.
From schematic to ordering parts to cab design, it is all here and explained in detail. Tubedepot carries a selection of 6l6 5881 kt66 7027 power vacuum tubes. The reason that it is called a vacuum tube is that the air is sucked out of the inside of the tube when it is manufactured. Fortunately, many manufacturers use power tubes that fall in the same specification as. Nos ge 6l6 power tubes are one of the more sought after, and gts reproductions of these sound pretty darn good. Groove tubes gold series gt6l6s matched power tubes medium. Although it will work fine in most 6l6 circuits, the kt66 has a higher filament current of 1. Strong and very focused output as compared to many other 6l6 designs, this tube is highly recom. Confused about groove tubes rating scale the gear page. First, lets clarify what we are actually buying as the tube manufacturers use different ratings. These groove tubes gold series gt 6l6 r matched power tubes are russian made, same as the 5881, but matched in the gt system. New gt design with more power and heavy duty components.
While their high saturation threshold gives them the characteristics associated with the american amplifier sound glassy, clear, and hard to distort 6l6 tubes have been embraced by manufacturers all around the world. Groove tubes gt6l6r russian power tubes medium duet. Groove tubes gt6l6ge gold series medium output power tubes. Lone wolf blues company single ended 6l6 circuitry. The popular groove tubes gt 6l6 gedm medium power tube duet dm is a faithful reproduction of the original general electric clear top tube, one of the most popular tubes ever built. One was the original rca tube and the other a japanese model. This tube is commonly found relabeled by fender and groove tubes to gt6l6b. I still have an one old usa manufactured ge plant groove tubes set 6l6 pair and 12ax7 specimens unused and new in gt boxes somewhere in my basement. This black plate tube is focused and tight with crisp, chimey highs. The two gl6 tubes were old and not even the same brand so i replaced them with a pair of matched groove tube gt6lbr medium duet amplifier tubes. The project details the build of a singleended 6l6 harp amp. The groove tubes 6l6 s is slovakian made power tube that has a very aggressive, dynamic tone. I have a basically brand new set of the groove tubes ge that i received with another amp i bought that the owner did not install. An audio frequency generator was used to sweep from 10hz to 20khz with the input voltage measured at the 6l6gc control grid and the output voltage measured at the output transformer secondary winding while connected to an 8 ohm load.
It took more than four years to develop, and has stunning clarity and power. Here at we sell tubes from the original manufacturer whenever possible. Russian made, these tubes are the same as stock 5881 power tubes, but theyre specially matched by groove tubes, resulting in a better sound and. I have a 65 fender super reverb amp and noticed the sound just wasnt quite right. Built to rigid military standards, the sovtek 5881wxt will tolerate higher voltages than most other 6l6 tubes. Choosing and using vacuum tubes includes information on replacement tubes for hundreds of amplifiers. The 50hz measurement was used for lows, 700hz for mids and 6khz for highs. Groove tubes gt6l6gedm medium duet amplifier power tubes. We decided not to use just reprinted target specs from. If youre replacing a tube with the same type of groove tube tube model and rating, you do not have to rebias your amp.
The flagship of the gt 6l6 line, it looks and sounds exactly like the original g. Just picked up a new tube amp with a terminal case of tube rattle in the power tubes. Jj electronic vacuum tubes, capacitors, amplifiers. This creates a vacuum inside the tube and this lack of oxygen allows the metal parts to heat up without actually burning. I read that all modern 6l6s are gcs but mine clearly are modern and clearly display 6l6b. These are a very sturdy and reliable tube, with slightly less power and a more aggressive edge when pushed into distortion. I have a new ksr ares 50 watt amp, that has jj 6l6 tubes. Jj electronic 6l6gc 7027 a vacuum tubes, capacitors. Octal u f 6,3 v i f c a0,9 a typical characteristic. The groove tubes gt6l6r power tubes duet gives you what may just be the most reliable of the currently made tubes, with slightly less power and a more aggressive edge when pushed into distortion. If the tube develops a leak, or the seal is broken air will leak back into the.
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