6l6 tube family. Yes on the 6550 over the 6L6 because the 6550 has a bias voltage much closer to the 8417. $19. If it only has a 2 pole relay like many did, it will be a consistent tube eater because the bias is locked on. —has a basic sonic personality. The result is a stellar amplifier that surpassed ALL expectations. The SED Winged C displays no sins of commission, no sins of omission. Developed in 1907, the triad vacuum tube quickly became the mainstay of electronic equipment around the world. Even with the KT77's, though, keep in mind that the amp will still need to be re-biased. 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. The JJ Electronic 6550 is a robust tube built in the rugged fashion that JJ is famous for. This tube is only 84mm high (seated height without pins) and can replace 5881 or 6L6WGB tubes in most applications. Side note: Went through the exact same Here’s a snapshot of how they affect the tone of the amp: 6L6 tubes have a flatter EQ response compared to EL34 tubes which have a more scooped mid-range. They have a much heavier mid-tone that is ideal for vintage, rock, and metal music. 2 tubes, matched as pair The Sovtek 5881 delivers a warm, round tone that "sweetens" any vintage or modern guitar amp design. YMMV - of course. Driver Tubes: 6SN7 x 2. So an output tube running at 300V and 40 mA (. At the time when guitar amplifiers hit the market, the art and science of making tubes had hit a high point, with various kinds of Jul 6, 2021 · Common power valves include the EL84 and EL34, which are Philips/Mullard in origin, and the American 6L6 and 6V6 found in Fender amps. The power supply capacitors were 450V stacked to allow for 600+ B+ voltages. The original Swart Amplifier Co Space Tone 6V6se arose out of musician/recording engineer Michael Swart's attempt to get the most tone and soul from a small, easily manageable package for home/studio use. Pushing the 6L6 design to its final limits, the 6550 was rated for 42W. Sep 9, 2022 · Available in two iterations – a classic EL34 design and higher gain 6L6 variation – the 2x12 combos join the flagship 1x12 and head/cab St. I seldom see anything old or new that has glass as thick Jan 20, 2019 · Output: Best overall sound: Groove Tube Gold Series GT6L6GE Performance Rating 5 (#2: Russian military 6P3S-E, Honorable mention: Tung-Sol 6L6G (coke bottle 6L6GC), Tung-Sol KT150, Gold Lion KT66, vintage Sylvania 5881) Best Value: 6P3S-E. I generally prefer the sound of the NOS tubes over the newer production ones. Headroom: The 6L6 has more headroom, meaning The bias point for 6L6GC tubes depends on the plate voltage that the amplifier is designed to use. I tried 6L6, 6P3S, 5881, 6P3S-E, EL34, 6550 and KT88 output tubes. There is only one tube family that has the right tone, the 6L6 family. In my experience with a Komet 60, 6L6's leaned the amp in the Fender direction for better/tighter cleans; whereas EL34's leaned the amp in the Marshall direction with a little grind to them when pushed. In that respect, as long as I can buy a ’60s GE 6L6 matched pair for about $100, I’ll do so personally, but it won’t be like that forever Oct 11, 2015 · The 6L6 Transmitter is basically a crystal controlled radio frequency oscillator. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. It has the slope shoulder bottle that many refer to as a “coke bottle” and it is extremely heavy. Nov 13, 2012 · The PCB was based on a low cost triode-pentode driver tube and 6L6 family of output tubes that are available around the world. I rebuilt my MC240 with parts from Jim McShane. The 6L6 bias point at 60% dissipation for an amp designed to use 450 volts is: 30/450 x . Pre-Owned. Other tube types in the 6L6 family include: 6L6, 6L6G, VT-115A, 6L6Y, 6L6GA, 6L6GAY, 6L6WGA, 6L6GB, 6L6WGB, 1614, 1622, 5932, and 7581. Aug 6, 2011 · Clementine 6L6 (6L6GC/807/1625/6BG6) Parts List & Mouser BOM (Easy BOM entry link )*. Since this would need to be done with new power tubes of either variety Sep 19, 2019 · The beam tetrode 6550, the standard tube in the Marshall AFD100, is similar to the 6L6 and came to life in 1955. “Rectifier valves, such as the GZ34, EZ81, 5Y3 and 5U4GB and so on, convert AC mains supply to DC voltage. These tubes have a lot of headroom and can really drive an amplifier hard. He is a senior mechanical engineering student. These offer a very different sound than the other options on our list. The leads from the tube elements to the base are long enough to cause instability, which was cured in the 807 to some extent by internal shielding, and mounting the tube socket below the chassis one inch or so. Another problem with the 6L6 is that it is designed as an AUDIO tube. Call: 04 210 477 48 / 03 983 08 220 Jul 26, 2001 · With a 100w amp, there is only one such 'idle adjustment' to control the setting for all four tubes. #4. The durability of both tubes is 500–800 hours. The main difference between the 5881 and 6L6 vacuum tubes is the power output and rating. I'm thinking something with a minimum power rating of 20 watts so something in the push-pull camp using 6SN7s and 6L6/5881 only because I have a good inventory of each. Maximum dissipation of 30 watts, generally interchangeable with KT66. I got some arcing in the right channel outputs. Tubes in the "Tube" column are directly replaceable with tubes in the "Replacement" column. I only heard these tubes on a single monoblock, but the Psvane 5881 sounded really good. Jan 8, 2009 · The Sovtek 5881 WXT or 5881/6L6 WGC (AKA 6Π3C-E) The 5881WXT or 5881/6L6 WGC (same tube different base) is used as the OEM power tube for almost all amps calling for 6L6GCs by Fender, Mesa, Marshall. Physically, this Mullard 6L6GC tube is a kissing Nov 13, 2017 · 6L6 - 30W. Sound Characteristics: EL34 tubes sound darker and heavier. Self-biasing, no bias adjustment is needed. The 2. With good council from Dave Gillespie I added 220 ohm screen stability resistors. When you’re exploring the realms of guitar amp tubes, two venerable powerhouses you’ll encounter are the 6L6 and 6V6. 8 - Cathode & Beam-Forming Plates. Apr 1, 2006 · My questiion is why is the 6L6 family not the same family as the 12L6, 25L6, 50L6? These higher filament voltage derivatives sharing the same name are wimpy 10 watt PD tubes which match the 6W6, whereas the 6L6 is a serious PD output tube, in any of it's incarnations. The 6V6 is a beam-power tetrode vacuum tube. The old original 6L6s had an all-metal construction. It breaks up faster than the EL34, 6L6, and 6V6, and, of the four, has the least amount of headroom. It is much easier to hear the differences under high levels of gain due to tbe broader distribution of harmonics offering the ear much information about the response curve. The 6AR6 puts many a triode to shame. Sep 2, 2021 · EL84s and EL34s have a fairly narrowly defined, nearly predictable expectation in their anticipated tonal signature compared to the 6L6 family. 95. When installed into your amplifier, these octal power tubes offer a focused bite with well-defined articulation. as 6L6GC with 35 watts dissipation. Regardless of its manufacturer, each power-tube type—EL34, EL84, 6L6, 6V6, 5881, etc. With a wide range of operating conditions, Leo and his team configured a pair of 6V6s to run anywhere from 10 watts in the 5F11 Tweed Tremolux right up to a massive 22 watts in the Blackface Deluxe Reverb – eight watts more than the manufacturers The Preferred Series 6L6GC tube. Absolutely you can use an EL37 in place of a 6L6gc because it is a british 6L6gc with the same impedance and specs for the most part. 1. by Chris Alfano. The 6V6 has become an industry-standard in USA guitar amplification, found in many Fender models from the late 40s right through to present day. This is a 6L6 or KT88 family amp that was an effort between Kegger and myself to try a different triode-pentode driver tube in a cathodyne configuration. Use of these parameters shall be entirely at the user's own risk. 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. Details. May 8, 2011 · The Sovtek 5881 WXT/6L6 WGC Blue Glow. Dec 28, 2018 · As stated before, UL operation of the 6L6 family of tubes requires the screen tap being placed at 43% of the winding, with a reflected load impedance of 6600 - 7600Ω depending on the bias scheme used. The OPTIMUM impedance and/or operating point can only be determined by using tube curves or the equivalent. First it appeared as metal tube, then in several glass versions, e. #11. But Since Sovtek sells these Russian Military tubes as 5881's it creates confusion. Power transformer is the Edcor XPWR005-120. Feb 14, 2020 · There is probably a reasonable bit of reserve capacity in those transformers, but there isn't any point in finding out exactly how much unless you really want to discover how much a replacement OE power transformer is going to cost. Our all glass 6l6GT version has a description of the electrode construction. KT66 - Maximum plate dissipation of 33 watts and is generally interchangeable with 6L6GC. New Sensor (Sovtek) sells a tube called a Tung SOL 5881 which is a real 5881 and is only rated for 23 watts and 400v on the plates. 6L6-GC are used in the output stage of. Built to rigid military standards, the 5881 will tolerate higher voltages than any other 6L6. The 5881 is a 6L6 rated for 23W. The 6L6 was developed by RCA in 1936 as the first power tetrode, an alternative to the high output pentode designs already under patent Apr 28, 2016 · While 6L6 tubes pioneered the quintessential “American” amp tone, the EL34 is known for the equally famous “British” sound. High quality structural integrity provides consistent, reliable performance, making this tube a great choice in 35. Learn More. Now to create even more confusion. Power Tubes: 6L6G x 2. 6L6GC=30 watts PD. Sep 12, 2010 · Using EL37s in place of kt66/6L6. Then there is the 6L6GC, which is rated for 30 watts and is the more popular model in this family of tubes. In fact, an examination reveals what look like the beam forming plates you usually see on a 6L6 power tetrode. It is simply a byproduct of trace mineral elements in the materials Sovtek coats the internals with. Aug 6, 2010 · The rich, full range of bass frequencies highlighted in 6L6s can generate a wide sonic footprint when pushed, but too much power section clip with a 6L6 can cause bass "bloom" that expands beyond a desirable sound. Physically, the two are quite different to look at. 4517 Lot of 2 RCA 6L6 VACUUM TUBES. Generally speaking tubes are often the source of hum, however, this can also come from capacitors. What may be tough though for now is that 6L6 N. TungSol 6L6GC-STR and Mullard 6L6GC have Jun 18, 2019 · Active Member. Differences Between 6L6 and EL34 Tubes. For jazz heads, I’d go with the SED. Jul 28, 2018 · Order 6P3S and on the tube will be 6n3s. 6 = . This in practice results in a punchier tone with tighter bass and glassy highs. There are differences, but you usually only notice them in amps with very low levels of feedback (which allows the differences to remain more prominent, than in amps with lots of Vacuum Tube - 6550, JJ Electronics. I put some mismatched tubes in the right channel outputs and . The EL84 can be brighter than the EL34 and generally has a bit less low-end. 6L6 family tubes want 0. Sep 24, 2022 · The 6L6 is a substantially higher power tube than the 6V6. I also have many of the 9 pin 12 family but I prefer to use the 6SN7 on the front The TELEFUNKEN 6L6GC-TK has tight and defined lows, transparent mids and a shimmering high end. All flavors are equivalent to 6L6. The easiest way to differ is, 6L6 tubes are made for American Style Music. The 6550 family requires the taps be placed at 40%, with a reflected load in the 4-5KΩ range depending on bias arrangement. 6L6 ultralinear mode connection. If you like to play blues and jazz music, you can use 6V6 tubes, but 6L6 tubes are suggested for jazz and rock music. Jul 8, 2022 · The Final Verdict. What can I say, I like the family of 6L6 tubes over the EL34, KT-77 ones I have tried. If a tube swap doesn’t fix the issue you will need to contact a technician to take a deeper look. The first of this family of tubes to be introduced was the 6V6G by Ken-Rad Tube & Lamp Corporation in late 1936, with the availability by December of both Ken-Rad and Raytheon 6V6G tubes announced. Not every tube can play Jazz. Regarding the contentious subject of the 'sound' of tubes, I will not touch on this thorny belief. 6L6 tubes have more headroom compared to EL34 tubes. Starting at $56. [2] Mar 26, 2010 · The 6L6 tube family can get a bit confusing, don't feel overwhelmed. 6L6GC GE PAIR POWER TUBES MADE IN THE USA TEST EXCELLENT ON 600A NO RESERVE. Most amps using this tube run between 430-450 volts DC. The power transformer can handle it. Apr 10, 2019 · Apr 11, 2019. 6L6 tubes sound brighter and fuller. For rockers, I’d probably recommend the more powerful Tung-Sol. This is not a reissue, but a brand new tube. 6L6 evolved over many years, and there are a few variations that cannot be interchanged in some amps. Dec 26, 2011 · The 6L6 does have a later break-up as well as a bright & “chimey” top end to it’s tone. 6L6 5881 Valves available now from The Valve Store - Melbourne. Oct 5, 2015 · Triode Roundup: Seven “Common Man” 300B Tubes Compared January 26, 2016; Tube vs Solid-State – Why Do Tubes Sound Better? January 14, 2016; The TU-8300R “Red Amp” Tour January 7, 2016; Know Your Bias January 5, 2016; Audiophile Review – EL34 Family Tube Comparison January 1, 2016; Review – Preferred Series EL34 Tube November 19, 2015 Nov 17, 2022 · Tonally speaking, the primary difference between 6L6 and EL34 tubes comes from their construction, which does of course lead to big differences in their output. . Both amps weigh a mere 16. Jan 31, 2012 · Jan 31, 2012. Many say 6L6 tubes have too much 2nd harmonic. I guess it’s just because I’m old and crusty and an all-digital future scares me a little, but I’ve been posting about tubes a lot lately. They have a heater current of 0. It is taller than any 6L6 you can readily find. We stock a large number of premium 6L6 tube types in matched pairs, quads and sextet configuration, ready to be plugged in. May 1, 2014. style 6L6 plate design and a shiny black plate material they look like American manufactured stock. The TAD 6L6WGC-STR REDBASE™ is a glass envelope beam pentode with a plate dissipation rating of 30 Watts with convection cooling. 6L6's are not a direct swap for EL34's. Like its reputation suggests, EL34 tubes can be found on many legendary British amplifiers including those from Marshall and Hiwatt. O. 95% of the time, you can swap 5881's for 6L6GC's and vice-versa. Power output at all. The 6L6GC tubes we carry work great in any 6L6 tube amps. audio amplifying equipment, especially. It can be found in tube designs from Sylvania, RCA and General Electric. Tube Rectifier: 5Z4P x 1. S. Aug 13, 2014 · The "ballpark" estimate for (pentode) transformer impedance is just V/I. To find out more on which 6L6 tubes best fits your taste please refer to Best 6L6 Tube Review. In America, this tube is known as the 6BQ5, and was Exactly, and you can look up the various 6l6 tube datasheets and they will list the max screen and plate voltages. $60. Our top selling go-to 6L6GC tube is TungSol 6L6GC-STR. 7027A - a 6L6GC with a different pinout and is not interchangeable Jan 1, 2008 · Groove Tubes 6L6GE pairs sell for about $90 while Svetlana pairs are typically in the $50-$60 range. For one reason, the tone! In 6L6, there is an electronic lens that focuses electron beam onto its plate. The more I look around the more I see that the 6L6 is quite frugal on heater current given that both tubes are capable of similar plate dissipations. [1] [2] The 6L6 is a beam tetrode that utilizes formation of a low potential space charge region between the anode and Jan 1, 2016 · As a diehard EL34/6L6 tube addict, I could not imagine living like Hans Gruber, “on the beach, earning 20%,” without a little Musical Paradise MP-301 amp by my side decked out with EL34s or 6L6s. The TAD is very percussive or punchy if you prefer. It is still in use in audio applications, especially electric guitar amplifiers. What’s interesting is that there are still some old 6L6 tubes from the 1930s in circulation. 60. #3. KT88, KT90, KT120, KT150, 6550, KT170 are all related to the 6L6 and in many cases are interchangeable. 6L6 triode mode connection. 5 MH choke connected in series between the 300 Volt DC Power Supply and the Plate (pin 3) of 6L6 prevents RF from Dec 10, 2014 · JJ tubes tend to be well made and this model fits well into the family. Jan 19, 2016 · I didn't like them much at all back then, preferring other members of the "6L6 family" - like the WE 350B or the KT66. Another thing to consider when deciding on which power tube you’d want to TubeDepot carries a selection of 6L6 / 5881 / KT66 / 7027 Power Vacuum Tubes. 6L6 has a unique design that offers versatility over different frequencies. Delicate, airy and with a great big bark when the program material demands it. 5881 is a variant. So, why does the KT66 heater ask for 1. If you want to go to a "warmer" sounding tube to get something of a 6L6 sound within the EL34 family, KT77's are the way to go. C1, Coil, and C2 form a tuned matching circuit used to match the high impedance of the oscillator circuit to the low impedance of the antenna. Pure Class A, Single Ended Amplifier. anyway, building a whole house of cards on a stack of assumptions, I don't see why you couldn't use any 6L6 family tube and set the bias to the 1. 6L6 Variations. Tonally, it’s in the same vain as the 6L6: clean, little distortion and an almost ‘glassy’ feel. The blue glow inside of Sovtek tubes is normal and is not a sign of a defective or worn out tube. 6L6 penthode mode connection. The 6L6 I prefer is the 6L6WGB which is also known as the 5881. Power Transformer x 1, Choke x 1. I read that the KT66 was designed as a competitor to the 6L6. RCA 6L6GC Tube Lot of 3 Tubes Black & Gray Plates. The Tung-Sols stink, IMHO. Dec 11, 2012 · Dec 11, 2012. 273. They are beautifully balanced, offering a deep low end, controlled, tailored low-mids with a pleasing sparkle and chime on the top-end that provides a pleasing clarity. It is intended for audio frequency power amplification service in either pentode, ultra-linear or Feb 11, 2013 · That said- I've noticed FAR more difference in preamp tubes, and any other tube outside of a feedback loop, than between two different types of 6L6/KT66 family tubes. Nice construction, good glass, and the base and pins are well assembled. This is why it is important to buy matched tubes (so they all idle at the same 'speed'). $39. I Installed a fresh matched quad of Tung Sol 6L6's as part of the program. Wouldn't you have designed the KT66 to run of 900mA Space Tone • ST-6V6se. This is based on the fact that the 6L6GC is a 30-watt tube, and we are aiming to run Dec 19, 2006 · 3,792. Like the 6L6, these type of tubes are also typically found on amps over 30 watts. Aug 5, 2020. Those numbers vary significantly from one tube to other tubes in that family. May 18, 2016. Mar 5, 2012 · Kardula. The MESA® 6L6 STR-443 is a premium grade, vintage-voiced 6L6. 6L6 Power Tube. Whereas, EL34 is for British Style Music. Text in other languages (may differ) Tube prices: 5 Tube prices (visible for members only) Feb 1, 2015 · Super Member. Mar 8, 2011 · A pair of 6V6GTs are good for around 10-20W depending on the topology of the output stage. The plate design is classic American 6L6. *Added two different values on the parts list and BOM for R18 & R19 depending on dissipation > or < 19W, selected for your power tube type Sep 4, 2019 · My son wants to build his first vacuum tube amp. Compare. 6A compared to the 6L6 family of 0. Freq: 20Hz-35Khz. They can be a bit pricey, but they are the 6L6 with the best tone in my opinion. The first of this family of tubes to be introduced was the 6V6G by Ken-Rad Tube & Lamp Corporation in late 1936, [1] with the availability by December of both Ken-Rad and Raytheon 6V6G tubes announced. #5. The wide metal tube envelope is 32 mm in diameter and excluding the IO base pins, is 92 mm tall. Class A 5W - Single-Ended - 6V6/6L6 - Tube Rectified. The common varieties use inferior insulation on RF in the base. The metal tube hides the inner construction. It’s the most versatile tube of the bunch. References: Data-sheet and private correspondence. New & NOS power tubes from Mullard, Tung-Sol, Telefunken & more! JJ 6L6 Power Tube. Oct 25, 2021 · Yes, it does. 50. This will be a short. Guitar Lessons San Francisco ©2011 Jay Skyler. 6L6GB was rated at 19W in pentode connection, 5881 at 23W, and 6L6GC at 30W. If the amp worked purely on AC, it would be very loudly humming at 50 or 60Hz. Both have left a substantial mark on the sound of electric guitar amplification due to their distinctive characteristics and roles in shaping vintage and modern sounds. Feb 1, 2015. The main difference here is the way they were made. Now,you can also use them in place of kt66 but you need to remember that even tho the KT66 is of the 6L6 family,it has a bit lower impedance and,it draws more filament current Apr 23, 2017 · The problem is a REAL 5881 is a 20 watt tube and would die in a SLO. 9 amps of heater current, a KT90 (KT88 and 6550 as well) wants 1. On the other hand, EL34 offers a clean and crisp sound in Mid-Range frequencies. #1. If the amp has voltages that are compatible with those tubes (350V max plate, 19W plate dissipation) then go for it. Simply put, the 6550 can be used to create an amp that has a bit more power than with either the 6L6 or EL34. These tubes. The makers code. Although this is a replacement for the EL34 tube, the 6CA7 tube looks nothing like a pentode. Be very careful subbing in different 6l6 tubes. 04 or 40mA. The 6V6 is more subdued and has a creamier, midrange-rich tone. levels has low third- and higher-order. T. Jan 22, 2021 · The popularity of this tube, of course, pushed the evolution of the 6L6 to have more ruggedness, clarity, and fairly rapid power dissipation. The 6V6 tube came about as a solution to the power problem posed by the 6L6 – a tube with similar high sound quality was desperately needed for smaller applications (car radios for example, which 6V6 tubes were originally designed for), and the Ken-Rad Tube & Lamp Corporation had the answer. It's a true heavyweight, with 500 volt at 30 watt plate ratings, and 450 volt at 5 watt screen specs! This tube will replace virtually any of the other 6L6 tube types. 6 Month Special Financing Available‡. I love tubes, and I could type for hours about various styles of tubes like 6L6 vs EL34 vs KT88 vs Jul 2, 2015 · The “power tube” name is a bit deceptive, however, because these big bottles don’t just power your speakers—they actually play a significant role in shaping your amp’s sound and responsiveness. Jan 2, 2017 · Jan 3, 2017. The output tubes tried were 6L6GC, 6P3S, 6P3S-E, EL34, 6550 and KT88. Double that for push-pull class A, go lower for class AB (only for push-pull). Nov 8, 2008 · Nov 7, 2008. Sep 15, 2020 · 6V6 Tube Overview. In this Killer Rig article, we are going to explore the The Tung-Sol 6L6GC-STR is a massive tube option with thick mids. Jan 26, 2016 · As a diehard EL34/6L6 tube addict, I could not imagine living like Hans Gruber, “on the beach, earning 20%,” without a little Musical Paradise MP-301 amp by my side decked out with EL34s or 6L6s. Nearly every 6L6 amp out there is going to run about 450V on the plates and not a great deal less on the screens with about a 2k-2k2 primary on the OT if you're running a quad for pretty run of the mill AB1 operation. KT66 - 30W. The sound is all there. The 6L6 is a short, fat tube, which is largely due to its wide The 6V6 is a beam-power tetrode vacuum tube. 6L6s are being used in many musical instruments such as church organs, pianos, guitar amps and even theatre amps. 15 volts specified. October 31, 2013 1:00 pm. 3Vf), in the USA it was the worlds first and most famous beam-power-tetrode, the 6L6. Physical Appearance: Some 6L6 tubes are short and fat, while the EL34 is slightly taller. Sep 29, 2015 · The Tung Sol 6L6G is enormous. Of course those take more filament current than the 6L6GC. The reverse will not necessarily be a correct Jan 5, 2010 · The EL84 tube has a snarly sound (bright with midrange punch) and is usually found in smaller wattage amplifiers. It has the looks and the tone to match. mA. They are the best sounding tube I have tried and I have done a lot of tube rolling, My second favorite tube in my Dennis Had Inspire HotRod amp is the National Union 350B, but they have got extremely pricey. The lowest-rated 6L6 from 1936 is good for 19 watts and 360 volts, neither of which this appears to exceed. 3,353. provide high power output, sensitivity, and high efficiency. Along with Mullard 6L6GC, these new generation 6L6GC tubes are packaged in a compact form. The 5881 tubes are rated for 23 watts maximum, while most 6L6 variations can handle 25. 6 amps. BTW, for all on you VP 20 owners (both of us), don't buy the New Sensor "coke bottle" 6L6's May 13, 2016 · 19,464. 04A) would be around 7500 Ohms. The JJ 6550 is an excellent choice for bass heads, tube organs, and Hi-Fi amplifiers. Mike in MD said: ↑. They have about 20% lower output than a true 6L6GC. (*) These specifications are provided 'as-is', with no warranty of any kind. A quick glance may lead you to believe you are looking at something exotic, perhaps a large power triode. units designed to have ample reserve of. 8kg (37lbs), despite coming equipped with two ECC83 tubes and two 12” Celestion Zephyr ferrite magnet Nov 8, 2014 · Here are the specs: Power: 8W + 8W. I've tried the JJ 6L6 GC's and the New Sensor Tung-Sol 6L6 GC-STR's in my Dared Vp 20's. If you can do toner transfer PCB fabrication you could do this PCB. I have a pair of the Tung-Sol 7581a tubes in my Dennis Had Inspire HotRod amp. To New Sensors credit, their TS 12 AX7 Gold pins are pretty nice, mixed with RCA Clear Top 12AU7's. 6L6GC: This is the newer version of this family of tubes, made to meet the demands of public address and musical instrument amps, and high fidelity equipment. Output transformers are the Edcor GXSE15-8-5K (these are for 8 ohm speakers). 5 bids. 3A and the 6L6 0. It is a reliable, low cost replacement, and it's probably what you have in there now. 99. Jazz 6L6 Power Amplifier. The TU-8200 runs this tube with zero issues, and after listening to these for a week straight I have to say this might be the best the amp has sounded. 5881 was rated for approximately 20% greater dissipation than the 6L6GB. The RCA logo. 0. Essential Characteristics, General Electric, 1973. James units, and deliver many of the same meticulously engineered specs. This makes them great for palm muting The 6AR6 is a fantastic tube, certainly one of the best of the 6L6 family. Type 6L6 was first introduced in 1936. They are all in the 6L6 family, with the "GC" being the most powerful of the heap (and handle ridiculous amounts of plate voltage). This gave rise to not just a couple of 6L6 variants, but quite a few: 6L6, 6L6G, 6L6GC, 6L6WGC, 6L6WXT, 6L6WGB, 6L6CHP, and many others (not including it’s similar brethren, the 5881 and the not-so Oct 31, 2013 · This 6L6 Tube Comparison Sheet Is Pretty Damn Useful. The 6L6 tubes are high-powered tubes and deliver warm and smooth tones. GE tubes cost about the same as this new GT tube. The 7027A tube has similar power ratings but with a different pin-out. Since EL34 tubes have a more scooped mid-range, they sound more bassy, heavy and dark in comparison to 6L6 tubes which sound a bit brighter. 6L6 tubes are beam-power tetrodes, while EL34 tubes are pentodes. Best combination of sound and aesthetics: Tung-Sol 6L6G, Gold Lion KT66. No question, get yourself the NOS RCA coke bottles. Using the old school U. To my ears, back in my Music Man amp days, 6CA7's are somewhere in between 6L6's & El34's but sounded closer to 6L6's In Europe it were the pentodes AL5 (4Vf) and EL5 (6. The most common types of 6L6 tubes and their European equivalents used today include: 6L6GC, KT66, and 5881. power-delivering ability. #8. Overview of 6L6 and 6V6 Tubes. First off, I should state that Mullard never produced a 6L6GC. And we can compare them to one of today’s standards, 6L6GC. On the contrary, the 6V6 tubes have a lower power rating, resulting in snarling and aggressive tones. Jul 30, 2004 · Tube Interchangability Reference. The small form factor reduces vibration and associated noise. While this amp doesn't use a lot of bias, it Oct 5, 2015 · The TAD 6L6GC-STR is matched for plate current and transconductance and has the look of an old Sylvania. Yes, they even had a metal envelope. 9A. Typically, a cold setting will make the amp sound a bit sterile. Chances are if an amp uses 6L6-style output tubes, it has Sovtek 5881's in its sockets. A warm setting (e. This tube is an homage to the black plate 6L6GC made during the first golden age of tubes. 6L6GC - The standard among 6L6's. The following should be direct substitutions. 70% of rated dissipation) gets the most out of the tubes. Nov 23, 2008 · Petaluma, CA. With smoother mids and low-treble frequencies compared to the EL-34, 6L6s also produce less obvious saturation when pushed. Although it can vary depending on the user. Once these tubes are gone, the Tung-Sol 7581-A may well be regarded as the greatest readily available 6L6-family tube. Alas, between the receipt of the tubes last fall and the publication of this review, work and family life got busier than anticipated. At 35 Watts, these tubes have a warm round tone with a thick and defined low end. This is the longest production run of any electronics device in history. You should also check to see if your JB-150 has a 3 pole relay. W. They aren't that expensive either. Tube Type: 6L6 tubes are beam power tetrodes, while EL34s are pentodes. 6L6GB, 6L6WGB, 5881 - Maximum dissipation of 23/26 watts and are interchangeable. It very much depends on how you use the KT88s. Mar 30, 2023 · A 5881 is rated for 23 watts pdiss. g. Just like its 6L6 brother it is available as the 6V6 a metal tube, 6V6G a glass "coke bottle" shape and the 6V6GT a tubular glass envelope. 6L6 tube types can vary greatly in size, so check the clearances in your chassis The 6L6 has been in continuous production since 1936. Screen Dissipation ( max) 5. The closest Mullard made in England would be the KT66 and KT77. These tubes are ideal in combo amps. 6L6, 6L6G, 6L6 GB = 19 watts PD. It has about 20% less output than the 6L6GC, but it does offer the warmer tone that I like for my personal use. #19. The 6L6GC has 30W anode dissipation, plus in most makes a rather more rugged internal construction. #9. Apr 10, 2016 · If the 6L6 orange glow you are describing is only heater glow, then I would start by switching out the 12AX7 and go through the process of elimination. They were all beam pentodes, same general construction except for the treated grids and anodes in the 5881. xf qx sx ud gk oz ey zl fu jw