6l6gc tubes equivalent

6l6gc tubes equivalent. 9 Ampere / Indirect / Specified voltage AC/DC. The 6CA7/KT77 internals are closer to 6L6 or 6550 than EL34. However, the screen values and dissipation remain increased by about 20%. You simply plug the adapter into the tube socket on your amplifier and then plug in the 6BG6. 4. Thread starter Teleplayer; $18 for a NOS 6L6 equivalent is a no brainer for me (tube plates similar to Syl. 6L6 is the designator for a beam power tube introduced by Radio Corporation of America in April 1936 and marketed for application as a power amplifier for audio frequencies. Tube Type: 6L6 tubes are beam power tetrodes, while EL34s are pentodes. It means that the design of a 5881 tube will allow it to handle and resist vibrations and shocks better than 6L6 tubes. Models in the S-5500 line applied increasing voltages as Sherwood gradually upgraded the product, and according to their schematics, power supply voltages in the Jul 5, 2013 · Most of american sweep tubes are not "happy" with screen voltage higher than 200-220V, but europian tubes like EL500, PL500, EL504, PL504, 6P36S and 6P44S works good (and long!) with 350-360V. This 5881 / 6L6WGB was first developed by TungSol for the US Military. Now if you want a little less power and an earlier breakup you can have it! Feb 4, 2008 · Feb 3, 2008. Tung-Sol 5881 had a max plate dissipation of 24W. From what I've read, modern 6550 tube amps are also compatible with an exceptionally WIDE variety of tubes including the following: 6550A - 7D11 - 12E13 - 7027A# - KT88 - KT90 Type 2 or 3 - KT99 - KT100 - KT120 - KT150 - KT190. Nov 23, 2010 · The Russian alphabet doesn't (obviously) use English characters, so these are just rough translations for 6П3C-E (the real Russian name stamped on the tube). The design of this tube also provides better shock and vibration resistance. Play one side of music and then check bias again--bringing it up to 100% for that tube type. Apr 19, 2017 · Here’s the output tubes that I’ve tried in my Inspire amp: Zenith 6V6G (vintage) Sylvania 6L6GA (vintage) Sylvania 7408 (vintage, 6V6 variant) Mullard EL34; Bugle Boy EL34 (vintage) Russian 6P3S-E (Russian military surplus 1980s 6L6GC equivalent) Groove Tube Gold Series GT6L6GE (6L6GC) McIntosh branded GE 6L6GC (vintage) GE 6L6GC (vintage) These are the original Sovtek 6L6GT tube from the Reflektor plant from long before New Sensor bought the Sovtek name. electrically is a 6L6GB. In use, 6L6GC offers significant performance improvements over power pentodes. Physical Appearance: Some 6L6 tubes are short and fat, while the EL34 is slightly taller. Consequently, the sound of 6CA7/KT77 takes on characteristics from the 6L6 and 6550 tubes. RCA / 5879--BELL & HOWELL RCA. For 360VDC, Class AB, 50mA. A good pair of 5881 will cost you around $90 to $110. Sep 17, 2022 · The information I was given is that 6L6’s are less tolerant of high voltages that tend to be used in amps designed for KT66’s. for 400VDC on 6L6GCs in Class AB, RobRob's site says 45mA is 60% dissipation. What is very often true is that there is a spread in characteristics, these days often up to an unacceptable 25%, even with same brand ones. Granted, they don't have the "slam" or the bass of KT88's, but they are very nice pleasant and realistic sounding power tubes. But it doesn’t work the other way around. It dominates the electric guitar tube amp world. He was told that they are exactly the same tube despite 6L6GC Russia 6n3CE small base matched pair. Mesa/Boogie 6L6 STR 441 Power Tubes – Matched Duet. A. About KT66, it’s a beam-power tube made by Marconi TubeDepot carries a selection of 6L6 / 5881 / KT66 / 7027 Power Vacuum Tubes. The Listening Test. com offered a set of five EL34-type tubes for review (JJ KT77; JJ EL34 II; Svetlana EL34; Genalex Gold Lion KT77 and Mullard EL34) I jumped at the opportunity. All three are remarkable tubes. NOS This is a great all-rounder. Jul 9, 2014. Having a dark covering serves the tube better from an electronic viewpoint for several reasons. The low end is huge, the mids are thick and luscious, and the highs are presence but certainly not piercing. 12AY7 tubes were frequently used as the first preamp tube in most Tweed-Era Fender amplifiers. Anyway, all 3 variants have a 360V design center max plate rating. Remember the Sovtek 5881 WXT and 5881/6L6 WGC tubes are Russian 6Π3C-E tubes and do not fit neatly into the U. . The 5881 is a military spec approximate equivalent to a 6L6GC. Tube Substitutions. Are 5881 tubes still available? Yes, 5881 tubes are still available and made by a few different brands. 1. JJ Electronics is celebrated for creating performance-driven heavy-duty preamp vacuum tubes, and the Sep 4, 2013 · Its extremely close to the 6L6GC and will sub for one in circuits that call for those or KT66 tubes. This is not a reissue, but a brand new tube. The Preferred Series is intended to improve on the TAD GC. The Sound is nice - authentic vintage tone. The 6L6EH offers tone and performance superior to any other 6L6 or KT66 type. In appropriate amps such as my Ideal Innovations Custom 30 monoblocks, the 6N3C-E is a great sounding tube. If you are going to make a comparison of one type of power tube vs. The GC's had a 30 watt plate dissipation rating and a. Jun 18, 2019 · The 6L6G, 6L6GC-STR, and obviously the 7581a I started this thread about. 6L6GC - The standard among 6L6's. Sep 17, 2022 · This list of the best 6L6 tubes available was formed through extensive testing and research, so you can be sure that whichever you choose, you’ll be improving the sound of your rig dramatically. Specs are close to 6L6-GB's but *not* to 6L6-GC's when it comes to max. Please take this into account if your use a mounting clip. PYE list 6L6 as equivalent for their HF25 which runs at B+ 450V, which is well above the Quads. When running clean tones through each tube, they both sound great, but they're still different. It can be found in tube designs from Sylvania, RCA and General Electric. Feb 20, 2007 · The best current production 6L6 type tube is the Sovtek 5881, which. The output tubes don't have individual bias controls nor current measuring (or distributing) cathode resistors. The 1625 is also very similar, but uses a 12 volt heater. Groove Tubes GT-6L6 Russian Power Tubes – Medium Duet. Warm and magically delicious! The Preferred Series 6L6-GC (USD $29. Jun 19, 2007 · The 807 internal structure is exactly the same as the 6L6, but the latter has been ruggedised over the years, and the 6L6GC is now a 30W tube compared to the 807's 25W. The GE data sheet says the 7581A is interchangeable with the 6L6GC. jeff. They 6L6GC - 7027 A. 9 Tube prices (visible for members only) Information source. RCA was responsible for designing and manufacturing many important valves such is the 6V6GT, 6L6GC, 7027a and the super EL84 3. Sylvania 6L6GC had 30W max plate dissipation. It includes a black plate, double halo-style getters, gold grid wires and heavy gauge glass. #1. I don't think 5932s. Consider these 6L6 tubes as an excellent choice for any type of music, delivering crystal cleans and smooth breakup with plenty of punch. KT66 - Maximum plate dissipation of 33 watts and is generally interchangeable with 6L6GC. [1] [2] The 6L6 is a beam tetrode that utilizes formation of a low potential space charge region between the anode and screen grid to return anode secondary emission Apr 19, 2023 · Similar to 6L6, 6L6GC is a beam-power tube that makes use of the formation of a low potential space charge region between the anode and the screen grid to return anode secondary emission electrons to the anode. Originally posted by The JEM Ghost View Post. ) A GB is not as. The 5881 tube is the electrical equivalent of the 6L6 and 6L6G tubes, except that the dissipation plate and screen values are increased by about 20%. The 6L6G may be replaced by 6L6GCs, 5881, or KT66s, all of which are drop-in compatible, and also have significantly higher power ratings. The 7027A tube has similar power ratings but with a different pin-out. It is an electrical equivalent of 6L6G and 6L6. We agreed that I’d throw a few of my own tubes, including the Tung-Sol EL34B and Shuguang 6CA7-Zs I Oct 25, 2019 · The bias setting for any amp depends on the actual voltage the amp runs at. They are good tubes thou, but maybe not as plentiful as they once were. Again most of these are "cross branded" with all of the tube numbers that are TungSol 6L6GCSTR Matched Pair $84. 6L6 tubes sound brighter and fuller. This tube is an homage to the black plate 6L6GC made during the first golden age of tubes. Specifically, the differences in power handling and bias requirements between the two tube types is what prevents them from Nov 23, 2010 · 2010-11-23 9:16 pm. It is a shame that they were not the stock tubes - it would have given the amp and the Single Rec an even better reputation. 6V6 tubes are another common type that are used for lower wattage applications and are similarly scaled-down 6L6 tubes and provide a similar sound. They're pretty tough tubes too, and vintage ones go for reasonable prices. Looks like the RCA data sheet for the metal envelope 6L6 claims the screen voltage max for that tube is 300V vs the 270V for the G and GB. Listening tests were then conducted while playing guitar and switching between the tubes at various Jan 1, 2016 · Audiophile Review – EL34 Family Tube Comparison. Physically, this Mullard 6L6GC tube is a kissing Apr 10, 2019 · The 6L6GC has 30W anode dissipation, plus in most makes a rather more rugged internal construction. 6L6GC - 30W version. Jan 16, 2016 · 6L6G and 6L6GB are electrically equivalent, according to the data sheets I have, only differing by their envelope. When compared to the 6L6GC, the 5881 is a weaker power tube. 3 Volts / If 0. It takes the typically 6L6GC/7581 30W rating and raises it 5W to 35W plate dissipation! This is the same rating as the vintage USA made 7581A tubes. 6L6GC: schematic diagram. #9. However, the 6L6GC, and others may not be replaced by the 6L6G, due to the lower ratings on this tube. can take 6L6GC numbers. Subjective opinion: KT66’s sound better. The 6P3S-E is the military version of the 6P3S with a coin / wafer base. 75 W vs. The plate design is classic American 6L6. 6L6GC Comparison of Current Made Tubes. I don't know what your B+ Plate voltages are, so I can only speculate, but any of the calculators out there will tell you if a bias point is good enough or not. TungSol 7581A Matched Pair Out of stock. Note clarity isn't quite the same either. From this, you can probably deduce that the EL34 is slimmer and taller, although not by much, with perhaps just around 1/8” difference in height. In fact, the KT66s are the British equivalent of the American 7581/A preamp tetrode tube, which is basically the industrial version of the 6L6GC. The 454's are the winged =C= SED's. 6P3S-E tube REFLECTOR factory, output beam tetrode. Tube 5881A / 6L6GA / 6L6GB / 6L6GC. The 7581/A tube is an industrial strength version of the 6L6GC which is also said to be the American equivalent to the British KT-66. Philips ECG 6L6WGB JAN Matched Pair $163. One of the unique features of the KT66 is that some of its original versions were made of black glass. The 6CA7 is meant to be a replacement for the EL34, but it is an original design that imparts its influence on the resulting tone of the amplifier and is similar in sound to the 6L6 vacuum tube. design maximum rated plate. #10. The 6L6GC has a 30 W. Noise / Microphonics. Sound Characteristics: EL34 tubes sound darker and heavier. Headroom: The 6L6 has more headroom, meaning PRICE!! While new 7027A's are $95+ each and 6L6GC's are $75 each (or more), our 6BG6GA's are only $18 each!! We are offering adapter kits to convert 6BG6's to 6L6's or 7027A's for only $10 each (they only differ in the way they are wired). Nearly 80 years later it remains the most used power output tube. However, it differs in screen and plate dissipation ratings. Step 4: Fasten a terminal strip to the mounting screw of the tube socket. I have run 6L6G in my PYE’s and they were happy enough. Jan 2, 2009 · It is not equivalent to a 6L6GC and shouldn't be used in circuits designed for the "GC" without first consulting with the amp's designer. To view this site, you must enable JavaScript or upgrade to a JavaScript-capable browser. Will substitute for all types of 6L6 and 7027 except for the 6L6GC, KT66, or 350B. It actually has a higher plate dissipation rating, 35 watts vs 30 for the 6L6GC. We just got our first batch of the new Tungsol 7581A tubes. New Old Stock original box or white boxes. The 6N3C / 6P3S Tube or 6pi3C is the Russian equivalent of the 6L6GT. Summary: A very rugged tube providing a clean, warm sound that overdrives nicely. Aug 6, 2007. Current production TS has changed that for me. One of the most famous American Valve manufactures of all time. Description. Oct 16, 2022 · smoking-amp. You can use 6L6GC where any of the other tubes are used, so if you aren't sure, go with 6L6GC types and you will be fine. May 8, 2011 · Sovtek 5881 WXT/6L6 WGC Wattage & 6L6GC / 6L6GB Comparison. What I don't understand is what the advantages / disadvantages of these alternate tubes are. Super Member. The post #6 schematic is most likely running with those mu follower drivers for high power output with 450V B+. Short heavy glass tubes, with huge brown micanol bases, all Sylvania made, 1950s vintage. plate voltage (375 V vs. Each tube sample used for comparison was chosen because it measured in the middle range of idle plate current draw at 6P3S tube FOTON factory, output beam tetrode. Philips ECG 6L6GC JAN Matched Pair Out of stock. 7027A - a 6L6GC with a different pinout and is not interchangeable 6L6 | 5881 | 7581A Vacuum Power Tubes. Nov 17, 2022 · Physically, the two are quite different to look at. The original Williamson amp actually called for an 807. From what I read about the 5879, I don't think it needs upgrading. They're even cheaper most of the time. The most common types of 6L6 tubes and their European equivalents used today include: 6L6GC, KT66, and 5881. Then we match them using a Maxi Matcher 2. Nov 4, 2021 · Russian 6P3S-EV is more similar to Tung-Sol 5881 or newer 6L6GC. 95 each) is an in-house design from www. Tube prices. THEY ARE NOT 6L6GC! Compatible with all 6L6 variants except 6L6GC, which require a higher plate voltage rating. another, then make your comparison using tubes by the same manufacturer. F. Ltd. For decades I’ve been a “Vintage NOS Only” guy when it came to tubes. I enjoyed reading on these pages about how the Shuguang 6L6GC can take high voltage and heavy power handling, and still keep playing the gig. Some amps may simply wear these tubes out relatively quickly, other amps could be damaged. The 6L6 is a short, fat tube, which is largely due to its wide glass envelope. These are Russian designator (6n3CE, 6P3SE) and are directly equivalent to 6L6GC/5881 from NOS Russian Military stock They have a "coin" or small base as shown in the picture. Oct 22, 2009 · Hallo fellow Tube-beaters. The 7027A duplicates Grid #2 on pin 1. There will be other differences, of course. They can handle solid plate voltages and are very well constructed. Price And, finally, the price comparison comes. The use of treated grids and anode also improves the tube's overload capabilities Nov 19, 2007 · The Tung Sol 7581A is considerably less expensive than the Tung Sol 7027A. It has a lot of headroom and a fat, solid tone. Summary: A nice balanced sound that is not as bottom heavy, very smooth and balanced frequency response. This version has a 30 watt plate dissipation, 500V plate rating and 450V 5watt screen rating. The 6L6GC is the upgrade to all other tubes made within this family. A nice solid short bottle 6L6 that looks more like a 6L6WGC but has 6L6GC performance ratings. The 6L6 vacuum tube was first released by RCA in 1936. BEAM PENTODE. Until the JJ EL844 came on the scene in 2011 there really were no substitute tubes for EL84 / 6BQ5 tubes. (M-OV) of Britain in 1937 and marketed for application as a power amplifier for audio frequencies and driver for radio frequencies. 30/5 W). Internal mounting has also raised the allowed maximum Vg2 to 450V (500V in case of UL) instead of the 270V (under correction) for the 807. The Russian C is equivalent to a Western S. Maximum plate voltage on these is 250V. There are a lot of amps that can use different tubes to change or improve their tone for different styles of playing. 20 years ago. Kinda weird that GE would even be making an uprated 6BG6 so late, since most TVs went to purposed built horizontal output tubes by the early 50s. The tube New Sensor markets as the Sovtek 5881 is 6Π3C-E. JJ Electronic - Vacuum tubes, Capacitors, Amplifiers. In some amplifiers the 5881 and 7581A vacuum power tubes are acceptable substitutes. 2. These were built for the soviet military to the most stringent standards. The Sovtek 6L6WXT+ is exactley the same tube as the EH 6L6GC. pins / tip. 6L6GB, 6L6WGB, 5881 - Maximum dissipation of 23/26 watts and are interchangeable. It has 44% of the gain of a 12AX7 with a higher transconductance making it more touch sensitive. Step 2: De-solder and remove the wire and resistor connections at pin 1. Differences Between 6L6 and EL34 Tubes. 7. It is used in the output single-cycle and push-pull cascades of low-frequency receivers and amplifiers. Dec 3, 2009 · So I was wondering what "actual" company made these 6l6gc tubes and where were they made? As other contributors have noted, they are rebranded Russian 6n3C (6Pi3S in Roman). I don't know which russian tube it is but there is suppose to be the 6L6GC equivalent you can get from the bay that are quoted to be good an cheap. amp meant to use 6L6GCs, and good quality ones at that. The KT66 tube draws 1. They're not supposed to; they have the same voltage. Jul 2, 2014 · KatieandDad said: I think the 5879 is similar to the EF86. 6973s are mini power pentodes similar to the EL84 but lower distortion. Jul 20, 2019 · Once the EL34 became popular in England, the American company Sylvania quickly released the 6CA7 vacuum tube. higher plate voltage rating (450 or so), while the GB is rated at only 23. The midrange response is very nice. Here is the pictures of the same amp with 6P44S, and schematisc of whole amp with new bias circuit. The KT66 can be used in place of 6L6, but with a caveat. Essential Characteristics, GE 1973. You can use it as a sub for the 5881 or 6L6GC as long as the plate voltage is kept below 400 volts. The KT66 tube is pin-compatible and electrically very similar to 6L6 tube. #2. They are also similar to the 5881 and could be used as such. Shopping. Also features mica spacers with metal springs to eliminate tube rattle and microphonics. In fact, the Sovtek 5881 was designed around these. KT 88 take much more bias than the Russian tubes. The tubes are placed in a similar price range. See the 6L6 in Fig 2. Just a note here. Detail. I want to try and bake it at 150 degrees C in an oven, let's see if it reduces gases. Long-life. Dimensions (WHD) incl. 6CA7/KT77 does not have the same smooth textures and breakups as the EL34. I have some of those, but I use them in a single-ended amp, not a fixed bias. The "П" (pi symbol) looks like an N sort of, but represents a P sound, hence the various confusing transliterations. Mar 7, 2017 · The amps originally come with 1614 which are electrically equivalent from what I can tell except the data sheet shows that the 1614 is a 25 watt tube and the 6L6 is a 19 watt tube. Sep 29, 2015 · Harmonics. 6L6GC is a beam power pentode with an octal base and power of 30W for use in 6L6 amplifiers. These series go as follows: 6883, 6883A / 8032, 6883B / 8032A / 8552. The 6P3S-E is an output beam tetrode with an octal base designed to operate in the output stages of low-frequency power amplifiers. [1] [2] The KT66 is a beam tetrode that utilizes partially collimated electron beams to form a low potential space charge 6CA7 and KT77 tubes are drop-in replacements for EL34, but internally 6CA7/KT77 are different. KT66 - A 30W variation of 6L6, requires higher heater current. It is nearly impossible to find data on the tubes' output in class AB operation (which is what we are concerned with for guitar amps). ••• Jun 25, 2007 · I love the 454s in my Rect-o-verb - huge difference from the stock 430s. Sep 6, 2023 · EL84 tubes are used for lower wattage amps, typically in the 15 to 30 watt range, but have essentially the same sonic “flavor” as EL34 tubes. Aug 18, 2019 · The 6Π3C (6p3s) is "equivalent" to a 6L6GA. 6L6GB / 5881 - 25W version. Check bias daily for the first few days, adjust as needed. This extra current shouldn't be a problem in most cases, but when in doubt, you should check the amp's filament supply rating. The 12-volt equivalent of the 6146 is the 6883, the equivalent of the 6146A is the 6883A, and the 6146B is the 6883B. Sep 29, 2015 · Tremendous harmonic content and an overall depth in sound make these Winged “C” / SED 6L6GC tubes another excellent choice for the purist. 00. (Notice the suffix here. These tubes have been used in some of the most iconic amplifiers ever made. Maximum dissipation of 30 watts, generally interchangeable with KT66. When Jon Esau of www. 6L6 and EL34 tubes produce radically different sounds. Modelled after the vintage RCA 6L6GC ""black plate"", the 6L6GC EH features large plate dimensions and improved grid structure for increased power handling capabilities. These ratings are approximately increased by 20 percent. These tubes are compatible with most 6L6 variants except 6L6GC or 5881. They are unused old stock made for OEM amp makers so there is no label or logo. The TS "6L6GC-STR" are very good tubes. The ratings 7581 are roughly the same as the 6L6GC while the 7581A has higher ratings. They are NOT 6L6GC equivalent, so you need to dial back the idle dissipation if you're going to use them in a fixed bias amp. 58. 6L6 tube types can vary greatly in size, so check the clearances in your chassis Tube Substitutions. The Preferred Series 6L6GC tube. New & NOS power tubes from Mullard, Tung-Sol, Telefunken & more! The 6P3S-E is the military version of the 6P3S with a coin / wafer base. Oct 2, 2021 · Sherwood used the 7868 power tube extensively, which is the electrical equivalent of the 7591, and like my amplifier, they configured their output stages as straight pentode (not UL). I think a few sets just used a 6L6 instead. Step 3: Solder a connection between pins 1 and 8 with a small piece of wire. The Electro-Harmonix 12AY7EH/6072A is another tube that is useful in lowering the gain of an amplifier. While I still love my Vintage tubes, TS are a great substitute. Mullard 6L6GC Matched Pair $119. It has the looks and the tone to match. 53 x inch. The 6P3S (6N3C) is an equivalent of the famous 6L6GC tube and will replace them directly. jeff Aug 7, 2007 · Certifiable Audio Junkie. powerful as a GC. When I opened the box I was really surprised to find valves built very like the old Russian 6P3S (an old 6L6G-A /-B equivalent with 19W Sep 15, 2020 · While 6L6 and 6V6 tubes look physically similar, and have the same connector, their interchangeability is mostly limited by their electrical characteristics and the electronics design and setup of the amp in question. Some of you may have noticed as I have that all the 1614's I have come across have 6L6 engraved on the base. Can be used anywhere. Javascript is disabled on your browser. Matched pairs, quads, and octets are available The Mullard 6L6GC is a classic tube option. 90. S. and Grid #1 on pin 6. Near equivalent: 6L6, 6L6GT, 6L6GC and 5881. I know you will find confusing reports about it on the web, some claim the EH 6L6GC is an upgrade of a Sovtek 6L6WXT+, but that is inaccurate, since the two tubes are the same except the relabeled logo. Can only be used on amps that call for 5881. 9A. Dec 6, 2023 · You can say that the 5881 tubes serve as a 6L6 or 6L6GC equivalent, as mentioned in the 5881 datasheet. Thanks to its robust construction it is very reliable. Tung-Sol 5881 Vacuum Tube (Close Runner-Up) A Tung-Sol 5881 vacuum tube is a Russian-made reliable re-issue of the original Tung-Sol product. Jan 26, 2016 · EL34-family Tube Comparison! When Jon Esau of www. Sep 25, 2015 · Summary: The Mullard 6L6GC tube's firm bass response and detailed sound make it ideal in any amp, including high gain combos. Each tube in this comparison was installed in the same custom-built, fixed-bias single-ended guitar amplifier in order to obtain the voltage gain measurements and conduct listening tests. Quads are tightly matched! Aug 12, 2017 · 6L6GC Power Tubes, New Production. When it comes to 5881 equivalents, the 6L6GC is a perfect replacement. Title: 6L6GC Author: General Electric Subject: JA-FP-2000-12-26 Created Date: 12/26/2000 5:57:20 PM Pay attention mainly to the connections. Vf 6. So both tubes are essentially upgraded 6L6GCs. com. 6L6WGB) Reactions . First off, I should state that Mullard never produced a 6L6GC. It can be used as a high-frequency generator, transmitters and other general purpose equipment. Initially tested on the TV7 D-U, then on the Amplitrex AT100 professional computer testing system. 500 V) and plate/screen dissipation (20/2. The KT90s might be a little much for a transformer designed for the 7591. Jan 11, 2013 · Put in the new tubes turn on amp and then slowly bring the bias up on each tube to about 85% of the normal bias for that tube type. The 6Π3C-E (6p3s-e) is a quite nice 5881 equivalent. NOS Nov 9, 2016 · 2016-11-09 1:15 pm. 6L6. Sep 29, 2015 · Ratings. NOS Current Matched Pair Soviet Military 6L6GC / 6P3S-E / 5881 Vacuum Tubes. The KT66 is what is called a "Kinkless Tetrode" while the 6L6 is a beam pentode. The plate structure is very similar to a Svetlana with the extra cooling wings and the bottles are very similar to the Tung-Sol 5881. The 5881’s price varies from $60 to $120 per pair. Step 1: De-solder and remove the 470Ω resistor. If your amplifier calls for this tube, you probably CANNOT use some of the earlier 6L6 tubes as they are not rated this high. These are reissue tubes that are made in Russia and offer a very musical sound. So I bought some new Shuguang 6L6GCR. Nov 1, 2016 · The Preferred Series 6L6GC is an in-house design from www. (If you’re looking for a decent medium-sized tube KT66 vs 6L6. The closest Mullard made in England would be the KT66 and KT77. JJ T-6L6GC-JJ-MP Electronics Amplifier Tubes (Editor’s Choice) The JJ Electronics’ T-6L6GC-JJ-MP amplifier tubes find widespread application in guitar amps serve as the yardstick for all 6L6 tubes. Nov 26, 2005 · Typically, the feel of a 6L6GC is a bit harder than a KT88, although it doesn't have as much compression. 27A filament current, where 6L6 tube draws only 0. I have an old GE amp that uses them and I have RCAs, which sound great. The 6L6GC is the latest version of the 6L6 tube. I found that 6P3S (6П3С originally) are fair copies of RCA 6L6G, but they are NOS and sometimes gassy; also they are Russian so have spread of parameters wider than barn gates. Jul 13, 2023 · IIRC, at the beginning, the 6BG6 was basically a 6L6 with a plate cap. Best 6L6 Tubes – 6L6 Tube Comparison. KT66 is the designator for a beam power tube introduced by Marconi-Osram Valve Co. I still have some left. DOWNLOAD PDF. There isn't as much low-end or overall punch with a 6L6GC. That design will need matched tubes to distribute the plate currents evenly. Electro-harmonix makes them new now, but I haven't tried them yet. thetubestore. limits as a 6L6a, which probably wouldn't survive long in a Boogie Mark. Regarding the contentious subject of the 'sound' of tubes, I will not touch on this thorny belief. It is a newer, revised version of the TAD 6L6 GC -STR (I reviewed the WGC, a slightly different tube). Other tube types in the 6L6 family include: 6L6, 6L6G, VT-115A, 6L6Y, 6L6GA, 6L6GAY, 6L6WGA, 6L6GB, 6L6WGB, 1614, 1622, 5932, and 7581. Contents. Jul 9, 2014 · vinylkid58. 50 x 4. Nov 8, 2008 · Those little chinese Coke Bottle 6L6GC tubes are quite nice actually! If your running voltages of just slightly less then 400v or lower, the new production 350B is a very good tube as well. Nov 6, 2010 · Also, the 6L6GC is a 30 watt plate dissipation tube while the KT66 is rated at 25 watts. Unlike their standard 7581 vacuum tubes, the “A” version is rated for more power. Harmonics. Dec 21, 2018 · 6L6GT are very nice sounding power tubes. Just remember that for every pair of KT66's used in an amp, you need 1 amp more filament current then what you would for a pair of 6L6's. A custom 6L6GC switching box was constructed to allow for a quick switch comparison of two tubes at a time while plugged into the V2 socket of the same fixed bias, single-ended guitar amplifier used for the frequency sweep. 38 x 115 x mm / 1. We agreed that I’d throw a few of my own tubes, including the Tung-Sol EL34B and Shuguang 6CA7-Zs I purchased from Aug 31, 2022 · Winner: 6L6 tubes provide better headroom and sound signature compared to 5881 power tubes. Feb 11, 2015 · Introducing the Impressive 7581A Vacuum Tube. Found this online, but I have not actually reviewed the pinouts to make sure it is accurate: The 6L6GC does not use pin 1 or pin 6. The Svetlana 6L6GC vacuum tube has a nice balanced sound that is not as bottom heavy as say the TAD and not as bright as the SED. These have max Vp of more like 450V or 500V, max Vg2 of about 400V or 450V. The 430's are the Sovteks. Now, there are the tubes that were manufactured for FM commercial service. Dec 1, 2022 · Pretty sure I've seen pics of those amps with 6P3S-E's, which are basically 5881 equivalent. Svetlana 6L6GC Matched Pair Out of stock. PRICE!! While new 7027A's are $95+ each and 6L6GC's are $75 each (or more), our 6BG6GA's are only $18 each!! We are offering adapter kits to convert 6BG6's to 6L6's or 7027A's for only $10 each (they only differ in the way they are wired). TungSol 6L6G Matched Pair $162. tube classifications. kc oh lx sa ln pu ag im za fy