6l6gb vs 6l6gc. I thought that sounded something like the 6V6GT types.

6l6gb vs 6l6gc. Thanks. It's entirely possibly you'll destroy your 6L6Gs (specifically, the screen grids) if you install them in a circuit designed for 6L6GC. EL34 - Good compromise between more power and that triode 'sweetness' we like (or think we like). 6L6 specifications & parameters 6L6 Characteristics & Parameters Parameter Aug 23, 2015 · Just got a RK Twin, and it has four Electro-Harmonix 6L6GBs in it. Petersburg factory so the SED =C= will be the same. Oct 25, 2019 · 6L6GC Power Tube Matching by noddyhead » Sun Nov 17, 2019 5:08 pm I have just fitted a pair of nos GE 6L6GC in my Fender 57 Twin. 45A per tube. Feb 23, 2013 · The 6L6GC is generally a fuller, rounder more balanced tube, and offers more clarity and definition is running a highgain preamp, the El34 has a more mid-canteric tone. Apr 20, 2022 · 6L6GB versus 6L6GC? Just got a RK Twin, and it has four Electro-Harmonix 6L6GBs in it. They are in straight sided envelopes like 6L6GC's. With these switches it can run a bunch of output tubes (EL34, 350B, EL37, 6L6GB, 6L6GC, KT66, etc. They’re also very affordable, making them a perfect option for budget-minded guitarists. It dominates the electric guitar tube amp world. Curious about the tones of each and the typical life span when biased properly in a Fender type amp. The 6L6, 6L6G, and 6L6GB, are rated at 19 watts and so the bias setting will be different. 9A). 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. The 6L6 tube equivalent part numbers 5881 and 7581A vacuum tubes are acceptable substitutes in some amplifiers. May 29, 2024 · As I understand it the plate dissipation of the coin base version is 25w vs 30w for the 6L6GC. 8uF capacitors, and my first reaction after a quick listen to the NOS RCA 6LCGC Black Plates (below right) that my buddy Leo brought over and the GE 6L6GC Grey Plates (below left) that came in my McIntosh MC30 mono amplifiers that I bought Read More » Sep 30, 2025 · PSVANE 5881 Tube 5881A / 6L6GA / 6L6GB / 6L6GC (Unit) 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%. I sell tubes and guitar parts on ebay, check out my items Jan 8, 2009 · Remember the 5881 WXT or 5881/6L6 WGC is a different tube than the 6L6WXT, 6L6WXT+, & Electro Harmonix 6L6GC (which are all the same as each other). Schem sez it should have 6L6GCs in it. Single halo getter, not sure of the construction of the grids or screen. Looking on-line at tubes, I often read that a 5881/6L6GB will substitute for Tube 6L6GC or Röhre 6L6GC ID5022, Beam Power Tube, Octal (Int. The Ruby Tubes 5881WXT+ seems to be a Chinese made copy of the 5881WXT!?! Nov 1, 2016 · Review by Tim Smith Shortly after my EL34 tube review on Wall of Sound, Jon Esau of www. The 6L6 (Metal) 6L6G (Large ST bulb) 6L6GA (Small ST bulb) and 6L6GB (Tubular bulb) all have the same ratings - they just look different. The 6L6 has a number of variants,6L6, 6L6G, 6L6GB all of which are 19 watt tubes. 6L6 tubes have more headroom meaning they sound cleaner compared to EL34 tubes which sound more distorted and crunchy. Here is some information I've gleaned in the past about this valve. I've bought a matched quad, and a matched pair of the 6P3S-E's so far. 3 %âãÏÓ 64 0 obj /Linearized 1 /O 67 /H [ 759 223 ] /L 876597 /E 118526 /N 9 /T 875199 >> endobj xref 64 10 0000000016 00000 n 0000000564 00000 n 0000000619 00000 n 0000000982 00000 n 0000001221 00000 n 0000001350 00000 n 0000001370 00000 n 0000001394 00000 n 0000000759 00000 n 0000000961 00000 n trailer /Size 74 /Info 63 0 R /Encrypt 66 0 R /Root 65 0 R /Prev 875189 /ID Oct 14, 2013 · Revisions to the original metal 6L6 such as increased power handling and glass envelopes yielded new designations such as 6L6G, 6L6GA, 6L6GB and finally 6L6GC (introduced by GE in the late 1950s). Guitarists looking to swap a 6L6GA, 6L6GB, or 5932 with a 6L6GC or 6L6 will find biasing easy and very much within the standardized bias fine-tuning circuit range. Later the 6L6G had an all glass envelope - this improved the radiation cooling of the anode. Apr 11, 2009 · Some tubes had nomenclature changes, like 6L6 to 6L6G to 6L6GB, etc, and there were different data sheets published as manufacturers introduced new variations. It happens to be one of my two favorite tubes, right up there tied with the majestic 845 that I use in my Line Magnetic amplifier. From what I have read here and there on the web a 5881 tube (sovtek types) are electronically a 6L6GB tube. The 7027A tube has similar power ratings but with a different pin-out. STR, depending on who you talk to, stands for "special tube request" or "special test Jun 14, 2008 · I assume you are asking about the difference between 6L6GC's and 5881's. They offer a lot of headroom and sound good in all genres of music. The Best 6L6 / 6L6GC / 5881 Power Tubes Review. Neither of us have particularly efficient speakers so we're leaning Push-Pull, 25 to 40 W. The Russian version with the full base (non-coin) is supposedly not nearly as good. The 6L6 vacuum tube was first released by RCA in 1936. The 5881 is a 6L6-type tube, with essentially the same ratings and electrical characteristics as the 6L6GB, so any difference in sound would be due to the normal variations Dec 25, 2009 · The 5881 (mil-spec 6L6GB) was 23W, and the 6L6GC 30W. 5881's are more like the 6L6GB, meaning they break up a little earlier. com A Comparison of Current Production 6L6GC Tubes RCA introduced the 6L6 to the world in the 1930s. Jan 18, 2018 · Hello Guest, Please feel free to join us! There are many more parts of the Phorum that only members can see. 5 watts. They retained a solid, tight low end with more midrange that cut through the mix a little better. They appear to be similar (identical plates) but that is about it. Jun 20, 2006 · 6L6GC-For new, I think the TAD 6L6GWC-STR come pretty darn close to a GE 6L6GC-my favorite. The schematic calls for 6L6G's I'm running some NOS 6L6GC's. Pushing the 6L6 design to its final limits, the 6550 was rated for 42W. 6L6GB was rated at 19W in pentode connection, 5881 at 23W, and 6L6GC at 30W. If the amplifier is spec'ed for 6L6GC, you cannot use a 5881 because the 6L6GC has higher plate, screen, and power dissipation ratings than the 5881. 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. TUNG-SOL 6L6GC- The 6L6GC-STR is a beam-power tetrode primarily designed for use in audio-frequency power amplifier applications. 6L6, 6L6G, 6L6GA, 6L6GB, 6L6GC, and all other variants as well as , 5881, KT66. This chart is a comparison based on the JJ brand tube types: Jan 16, 2007 · Thats about it with them as far as i know too. Still not a lot of power, though. 5W vs. reissue. From what I can sort out online, it's not a problem to run the GC's, but I wonder if I would get a little lower headroom and overall volume with the older spec tubes. 6L6GC valve versus the 5881 valve. What I continue to see in testing is that EL-34 tubes (all descent examples, different brands) always out perform 6L6GC for RMS clean output and full power output. instagram. It had a metal envelope which was popular at that time for use in radio sets since it was less likely to break than a glass envelope. For the output stage, any sonic/practicality opinions on the EL34 vs. The 6L6G has the largest envelope. Tubes marketed as Svetlana are made in the same plant as the Tung Sol. Just wanted to ask if anyone has had similar findings as I on a comparison between EL-34 and 6L6GC. Apr 25, 2014 · I did some testing awhile back between Tung Sol 6L6GC, Chinese EL34BSTR and JJ E34L. Few people use the old style metal 6L6. The design of this tube also provides better shock and vibration resistance. Which would be the best "bang for the buck" 6L6 type tube. Re: 6L6GB vs 6L6GC 152. Octal, IO) K8A, USA 1935 and Power/Output shown. Aug 4, 1998 · Fist, a 5881 is not necessarily a direct replacement. Though they do have a reputation for being tough and some people do run them harder, particularly in guitar amps. With a gold-plated molybdenum alloy grid and carbon-coated screen grid, the Svetlana SV6L6GC is the finest power tube of its type being manufactured today. This tube is NOT AN EXACT 6L6 REPLACEMENT. When I bought the tubes from Angela's almost 20 years ago, he told me that they were the equivalent to a 6L6GB. I assume your PA head uses the 6L6GC. 7591 ? Truth - Who's Best ! Gary Mattis Jun 19, 2018 5791 best audio tubes 6l6 el 34 1 2 3 … 8 Next Class A1 amplifier (single tube) Plate voltage Triode connection 250 Jan 15, 2016 · 6L6G and 6L6GB are electrically equivalent, according to the data sheets I have, only differing by their envelope. 163. But ultimately, if running a clean power amp, you'll notice nothing more than subtle tonal differences. 5881 and 6L6GC's are both in the same family. Feb 11, 2013 · Similar threads 6BG6GA in place of 6L6/7027A (6L6, 6L6GA, 6L6GB, 6L6WGB, 5881) speakerfritz Aug 10, 2008 Tube Audio Replies 2 Views 3K Aug 11, 2008 Our 6L6 Tube Review Chart helps you find reviews and ratings of our best 6L6 and 5881 tubes. Can be used Is it bad to use a 6L6GB in an amp that calls For 6L6GC? I've had some 6L6GB's in my Fender Concert II for about 6 months or so, and haven't had/noticed any problems. Nov 20, 2010 · I'm having a custom amp built, and the last real design decision is 5881vs6L6GC. These are the ideal tubes for any guitarist who wants the best sound possible at a great price. Tim Smith from Wall Of Sound gives his perspective and provides a full review of 7 different 6L6 vacuum tubes for the purposes of home audio. Nov 26, 2005 · 6L6GB. Odd enough that the glass is stamped with Svetlana Electron Sep 4, 2024 · Low power limits its usefulness. The KT66 has a higher filament current (1. 6L6GC. A Sovtek "5881/6L6WGB" isn't what it says it is. Regarding the contentious subject of the 'sound' of tubes, I will not touch on this thorny belief. EL34 tubes sound darker and heavier whereas 6L6 tubes sound brighter and fuller. US Made 6L6GC are getting harder and harder to find - especially in a condition this pristine. 6l6gc and/or are EL34 tubes have a more scooped mid-range compared to 6L6 tubes. Matched pairs, quads, and octets are available More Details They will likely melt down and damage your amp. The US made GE 6L6GC is one of the best classic 6L6 tubes ever made. 194. 6L6GC vs. Common Types and their rating There has been many 6L6 variations, but the most common ones today are: 6L6GC - 30W version. They have the same ratings as the 6L6GA/GB; 360 volts/19 watts plate and 270 volts/2. Also, the voltages are high enough to mostly overcome the apparently higher plate resistance of the 6P3S-E. Honestly, I'd love to get some RCA's, but the price is getting quite high on these, especially when you can't be sure Jan 17, 2018 · You may sub the 6L6G with 6L6GA, 6L6GB, 6L6GC. As far as Black vs Gray plates. 27 amps and has a design maximum plate dissipation of 25 watts. It also has 3 transformers in the back. The Psvane 6L6GB is a high quality beam power tetrode with an octal base. S. May 8, 2011 · Sovtek 5881 WXT/6L6 WGC Wattage & 6L6GC / 6L6GB Comparison Remember the Sovtek 5881 WXT and 5881/6L6 WGC tubes are Russian 6Π3C-E tubes and do not fit neatly into the U. This is my TSE Audio X30 Sovtek 6L6GC Vs. Dec 14, 2022 · 6l6gb and 5881 have the same ratings. Antique Electronic Supply sells an "Apex burned-in matched quad" of JJ for about $120. I thought that sounded something like the 6V6GT types. ) The owner's manual lists the 6L6GB as OK to use but NOT the earlier GA or G. Also 6L6WGC, 5881, or 7581 (the 7581 is equivalent to a 6L6GB; the 7581A is equivalent to a 6L6GC). For example, I have some late WWII 6L6 steel bottle tubes, and if you look up a plain 6L6 data sheet, you'll see they want substantially less plate voltage than those produced in the 1950s. 6L6GC BEAM POWER TETRODE The SvetlanaTM SV6L6GC is a beam power tetrode having a standard octal base and glass envelope. Hope that helps. Mar 18, 2005 · I am working on HK250 amp that has 4 6L6GC tubes in it already but the amp requires GBs instead. All sounded good. The 6L6GC-STR has ruggedized construction making it especially suitable for use in musical instrument amplifiers. All are old US made designs. Aug 28, 2023 · 6L6GCは、ギタリストの皆さんに馴染みが深いパワー管でフェンダー系やメサブギー系のアンプに良く使われておりますが、6L6Gというパワー管があるのご存じでしたか？ 「6L6GCと6L6Gって、最後にCが付くか付かないかの差で同じじゃねーの」 という声が聞こえてきそうですが、知ってそうで知ら The JJ 6L6GC is a great, well-rounded pick. The 6L6GB have a plate rating of 360 volts, 19 watts and a screen rating of 270 volts and 2. If you use a "standard 6L6" as you called it or any of the earlier variants I mentioned they will not last and may blow on the first chord Oct 12, 2024 · The 6P3S-E is appropriate for use at high anode and screen voltages - say +450V and up - but it generally won't produce as much output power at lower voltages as a 6L6GC or 6L6GB. The clear top construction is similar to the classic short bottle 6L6 tubes made by GE and RCA. The current tube complement on this amp is a pair of 6L6GB power tubes, a pair of 6V6GT power tubes, 3 12AU7 tubes and 1 5U4GB rectifier tube. They have no difference in output than a 6L6GC in the same circuit. Check out reviews and ratings of our 6L6 and 5881 tubes. A note with respect to the KT66. 6L6 tube types can vary greatly in size, so check the clearances in your chassis Sep 29, 2015 · A review of the Tung-Sol 6L6GC-STR vacuum tube. Other 6L6 Tube Bias Ranges While we have been touching on the 6L6GC, which is rated for 30 watts, other models are lower. 025mA The 6L6GB is similar to the more common 6L6GC, but has lower ratings (maximum plate and screen voltages 360V and 270V vs. Sylvania 6L6GA tube review!--- FOLLOW ME ---Instagram: https://www. tube classifications. NOS RCA Aug 3, 2013 · But you should not go the other way and use a 6L6, 6L6G, 6L6GA, or 6L6GB to replace a 6L6 GC. Uncover the essential information about 5881 vs 6L6 tubes, including their tonal qualities and compatibility with different guitar amplifiers Sep 17, 2010 · The 6L6GC and GB are 30 watt plate dissipation tubes that are rated for plate voltages of up to 500 volts. 6L6GC by Cathode Ray » Fri Feb 15, 2019 11:41 pm Tony Bones wrote: ↑ Fri Feb 15, 2019 11:25 pm I wouldn't worry too much about the OT, but be aware that the 6L6 draws twice the heater current; 0. Sep 24, 2024 · 最初はメタル管の6L6から始まりガラス管の6L6Gが登場し、その改良版である6L6GA、そして同定格の小型版6L6GBを経て、上位定格の6L6GCに発展していきます。 Jan 19, 2016 · I know the general consensus is that NOS RCA Black plate 6L6GS's are considered the best, but out of the new production tubes, what is the best? I currently have some Tung-Sol 6L6GC-STR tubes which sound good, but I'm wondering if some of the other new tubes might sound better. Aug 13, 2024 · If you want a real 6L6GC (other than NOS), you'll have to buy a JJ, Svetlana, Tung-Sol, etc. Oct 19, 2013 · Revisions to the original metal 6L6 such as increased power handling and glass envelopes yielded new designations such as 6L6G, 6L6GA, 6L6GB and finally 6L6GC (introduced by GE in the late 1950's). Does anyone have experience with how much clean and power are gained/lost when subbing 6L6GBs for 6L6GC's? And, is there any risk to damaging circuits or transformers? Feb 8, 2014 · In my last post I talked about my growing awe for the Duelund Silver CAST 6. Jan 12, 2010 · I always understood that the metal case 6L6s had much lower power output than do the 6L6GCs. That Tung Sol / New Sensor 6L6G is actually just their 6L6GC in a different bottle. Then a 60% dissipation would need a bias setting of . It was a tie between 6L6GC and 6550A, depending on which brand, etc. 9A vs 0. Jul 8, 2020 · If the amplifier is spec'ed for 6L6 or 6L6GB, then you can use 5881s. I also have a pair of NOS Sylvania 5881s. Nearly 80 years later it remains the most used power output tube. The BG is not as powerfull as a 6L6GC. 400V max plate voltage. Apr 10, 2019 · The 6L6GC has 30W anode dissipation, plus in most makes a rather more rugged internal construction. But they also respond uniquely when a signal is applied to their grids. You can use 6L6GCs in a circuit designed for 6L6G, however. For example, if the amp was designed to use a 450 plate voltage. I wouldn't recommend anything other than a 6L6GC for any amp made after 1960 unless specifically recommended by the manufacturer. The 6L6GB, 6L6GC, and 5881 will work in any amplifier that calls for a 6L6 type tube. More revisions and beef-ups followed, giving us the 6L6GB and ultimately the 6L6GC. A 6l6gc is rated for higher voltage but will work perfectly fine in a circuit for a 6l6GB or 5881. Usually 20 watt amplifiers of pre 1955 vintage. The equation for this is watts/plate voltage x dissipation. %PDF-1. From what I've See full list on studentofguitar. Jul 10, 2012 · A pair of 6l6gc's in a 35-50 watt grab and go combo circuit will have more headroom in most instances than a pair of el34's, and the el34's in some instances might not have any more headroom than the old glass lower wattage 6l6g, 6l6ga, (19 watts). Originally produced by RCA since 1936 as 6L6 tube (24 watts) as a beam-power tetrode with steel envelope, it was further developed into the 6L6G, 6L6GA, 6L6GB and finally the 6L6GC (30 watts), all in the glass version still in use today. Oct 14, 2007 · It has two toggle switches to vary plate voltage and cathode bias. I came away liking the JJ E34L best. As manufacturers improved the design over the years as they discovered new ways to push up the power. Jun 24, 2012 · The 6L6GC has a max plate voltage of 450 volts. 6L6, 6L6G, and 6L6GA tubes should only be used in amplifiers with plate voltages under 400 volts. Electrical Differences Electrically, the EL34 and 6L6GC are very different tubes. The 6pi3c is also commonly marketed as the "Sovtek 5881", which therefore isn't a true 5881. All JJ 6L6GC tubes are known to give off a warm and rich tone typified by balanced bass, harmonious midrange, and resplendent highs. They basically have the same tonal characteristics (great cleans sounds, bell-like tones) but one is used for lower watts and one for higher. All these had glass envelopes. The 6550 has a max dissipation rating of 40W, while it's near equivalent the KT88 is rated at 42W. com/alessandroarzilli84Twitter: https: May 14, 2015 · RCA 6L6GC's are excellent tubes and while some plates may or may not be true Black perhaps they are all considered Black for the purposes of tube merit. Other tube types in the 6L6 family include: 6L6, 6L6G, VT-115A, 6L6Y, 6L6GA, 6L6GAY, 6L6WGA, 6L6GB, 6L6WGB, 1614, 1622, 5932, and 7581. These tubes are normally found in 30 - 50 watt amplifiers and are the only ones you can use in these higher powered amplifiers with plate voltages that are over 400 volts. I seen by the RCA manual that the 6L6, 6L6GA and 6L6GB tubes have lower voltage ratings. They can be used with similar power supplies. com asked if I might be interested in reviewing a bunch of 6L6’s. It's also different from the Sovtek 6l6GB which you should not buy unless it is recommended for your amp. The amp design is a non-master vol, stereo set of amps (very, at this point) loosely based on the AC15 with a different tube complement, in one physical head, with dual gang pots so both channels are the same for ste Jun 16, 2010 battradio C 6L6GB vs 6L6GC vs 5881 cray Dec 13, 2022 Tube Audio Replies 6 Views 3K Dec 14, 2022 Jan 2, 2017 · 5881 was rated for approximately 20% greater dissipation than the 6L6GB. I have checked the biasing Tube 1 = 33 ma Tube 2 = 37 ma Is this a close enough match, I usually bias my 6L6GC to 36 ma Dec 14, 2001 · Hello a friend and I are starting to layout our first tube amp, we've built several SS Amps, and want to try tubes. Bassman Ten amplifier which uses 6L6GC power tubes. Jul 9, 2014 · 5881 23 W This is an industrial type power derated 6L6GB 6L6GB 25 W 6L6GC 30 W 6L6GC STR 387 35W By Philips/Sylvania STR is Special Tube Request - See note one below 7581 30 W 7581A 35 W Phillips ECG made a JAN Military version see note 2 below 7027 35 W Pin out is slightly different and may not work in all 6L6 applications Oct 22, 2005 · With the 6L6, they additionally did some internal mods to the guts to increase it's power handling, so the newly revised design became the A revision, so we had the 6L6GA. 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). 30W plate dissipation. 6L6GC, 6L6GB/5881 and KT66 Tubes Different Power Ratings While all 6L6 types are pin compatible with one another, some amps are designed only for the higher powered 6L6GC. Jun 20, 2002 · So, use KT66's ONLY in amplifiers designed to use this tube. The 6L6GB is similar to the more common 6L6GC, but has lower ratings (maximum plate and screen voltages 360V and 270V vs. Radio tubes are valves. thetubestore. 500V and 450V, and maximum plate and screen dissipations 19W and 2. 6L6GC's have a bit more power output capabilities. The mids are thick and The 6L6GC is the typical power amp tube of US guitar amplifier brands. Aug 13, 2024 · The 6P3S-"E's are a good replacement for the 6L6GC, and ahould work just fine to replace the 6L6GB as well. 6L6, 6L6G, 6L6GA, and 6L6GB tubes basically have a max plate voltage or around 275 to 350 volts. If you are after that Tung-Sol 5881 tone in higher powered amp, try TungSol 6L6GC-STR tubes. Jun 1, 2010 · Talking about my kit-built 5F4 Super amp. I've tested in several amps with The most common types of 6L6 tubes and their European equivalents used today include: 6L6GC, KT66, and 5881. 5 watts screen. How they both sound tonally really depends on the amp, and what brand tube. The Psvane 6L6GB is noted for its outstanding sound and is an excellent choice for both guitar and stereo amplifiers. However the amp works with the GCs and I was wonder if there would be any differences between the GBs 5881s vs the GC as far as 6L6WGB is the designation for 5881, which, in its originally-designed form, dissipates less current than a 6L6GC. Sep 27, 2012 · I have a reissue '63 brown Vibroverb that uses 6L6GC pwr tubes. or 6l6gb (22 watts). This article is designed to show you the differences. They have different normal operating and limiting values. It's not always a big deal, but if you're talking about a 64 Princeton Reverb then you might want to be cautious. They were all beam pentodes, same general construction except for the treated grids and anodes in the 5881. Although it will work fine in most 6L6 circuits, the KT66 has a higher filament current of 1. Feb 22, 2013 · The Svetlana 6L6GC, are not all that bad but they are not SED winged =C=. Tube 6L6GB or Röhre 6L6GB ID5021, Beam Power Tube, Octal (Int. 6P3S - The Russian 6L6GB clone with the larger octal base. The GB's are run at 410 V plate voltage and 680 ohms cathode resistance. The Russian 6n3c has a max plate voltage of only 250 volts. When you replace your 6L6, you should make sure that you replace with the right type. The 12AX7 tube is another one with good new production tubes being made, imho. Svetlana =C= 6L6GC (yes, that's right, not SED) are awesome in anything resembling a Bassman, or switch to their EL34 if you want a JTM45 feel. An offer I couldn’t refuse! Like the EL34 and the less common 6V6 and 5881, the 6L6 is revered Aug 13, 2024 · The MC240 used 6L6GC from the factory, so very different from the ST-70 in terms of loading on the tubes. 27A) than the 6L6 series (0. 500V max plate voltage. May 26, 2018 · Re: 6V6GT vs. Most modern amps are designed to use a 6L6GC, another variant that is a 30 watt tube. Looking for opinions on the Winged C 6L6GC and the NOS JAN Philips 6L6GB. Can I put 6L6GB tubes in this amp? How about old coke bottle 6L6GA tubes? I have already been instructed not to use the 6L6 metal tubes due to their inherent microphonic problems. Here is a Power Tube sound test comparison between a pair of Sovtek 6L6GB vs a pair of JJ's 6L6GC. Does anyone have experience with how much clean and power are gained/lost when subbing 6L6GBs for 6L6GC's? And, is there any risk to damaging circuits or transformers? Feb 14, 2020 · An original 6L6G cannot necessarily be used in a circuit designed for 6L6GC; the 6L6GC has higher ratings. Seems like I've Use Tung-Sol 5881 if you are looking for that great 5881 tone, but make sure your amp calls for 5881/6L6GB and not 6L6GC. 179 [ Follow Ups ] [ Post Followup ] [ Thread: Display Email ] [ Tubes Asylum ] [ FAQ ] Posted by Eli Duttman (A) on October 04, 2001 at 08:13:14 In Reply to: 6L6GB vs 6L6GC posted by loosecannon on October 04, 2001 at 05:46:28: Psvane 5881 (6L6GB)vacuum power tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. Revisions to the original metal 6L6 such as increased power handling and glass envelopes yielded new designations such as 6L6G, 6L6GA, 6L6GB and finally 6L6GC Dec 7, 2018 · 6L6 variants The original 6L6 valve was contained within a black metal tube or casing. Oct 7, 2000 · If you follow GT's designations, an RCA, GE, or Sylvania 6L6GC is supposed to be made in either Russia or China, and a Tungsol 6L6GB is a Russian tube. 30W and 5W). Other versions of the 6L6 valve included the 6L6G, 6L6GA, 6L6GB, and the final version which was the 6L6GC. FWIW: 6L6WGA is a 5932; it and other 6L6 variants (6L6, 6L6G, 6L6GA, 6L6GAY, 6L6GB) are rated to dissipate lower current than 6L6GC, and probably would not hold up in the amp in question. Jun 19, 2018 · EL34 vs. The 6L6GB is rated at 22w. 6L6GA is also taper-top or "Coke bottle" shaped but smaller than 6L6G. 5881 vs 6L6 can be a tough choice when you don't know much about the tubes. But I was just reading up on tube types and all that stuff, and saw that the specs between these two tubes are Way different. I would also like to point ot that the new Groove Tube 6L6"GE" is NOT a US made tube. . All 6L6-type tubes require 900mA of heater current. In 6V6's the 6V6G, 6V6, 6V6 GT, and 6V6GTA will all handle the same plate voltages and dissipate the same plate wattage. A very rugged tube providing a clean, warm sound that overdrives nicely. 22W pate dissipation. Anyway, all 3 variants have a 360V design center max plate rating. Almost any older production 6L6GC-RCA, GE, Phillips is going to sound good and there were a LOT of them made over the years. Jan 23, 2007 · What is exactly the difference between these two? And if an amp says you can run 6L6GC's through it can you just run regular 6L6's? Thanks. The haven't changed the St. They have a very dynamic response and offer a tight, controlled low end. I know the GC is higher volts (460) and the GBs are around 360. The 6L6G are Large ST (Coke Bottle) Shaped Tubes. But do have some differences when it comes to maximum voltage. They're generally considered to be equivalent to the 5881. 6iglmso llocf2kx 08t 9jp9 wvcv sqxqu emynft i4t hlnf txoyof