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  • 6sl7 tube equivalent. This is the brightest and cleanest sounding tube.

    6sl7 tube equivalent. The 12AT7 seems close, at a mu of 60. In any See full list on sonoboom. are suggested. Dec 29, 2020 · Discover the superior sound quality of the PSVANE 6SL7-AT, featuring high mu dual triode capabilities for excellent performance in phono preamplifiers and other audio circuits. - JJ Electronic - Vacuum tubes, Capacitors, AmplifiersPreamplifying tubes Power tubes Rectifying tubes Capacitors s. One big difference between 6SN7 and 6SL7 vs 6SC7 is that the 6SC7 has a common cathode for both sections, making it less flexible. National Union and Ken Rad are a close 2nd to the Tung Sols. Mark Oct 7, 2017 · I am currently running an old set of clear 6SL7's in my JE Labs 2a3 amp. This page lists all of the 6SL7 tubes I currently have in stock, including all industrial and European versions. Jun 26, 2016 · Tube of the Month : The 7F7 Hi! This months tube is an electrically equivalent tube to the 6SL7 which was presented last month. Please, point out any inaccuracies you see, certainly don't want to lead anybody astray. Together with the tubes all necessary values for resistors, capacitors etc. There are several variations of 6SL7 available. 18 months ago. And the 6SL7 is supposed to be the octal equivalent to one of my favorite tubes: The 5751. Tubes in the "Tube" column are directly replaceable with tubes in the "Replacement" column. Like everyoine says, these octal tubes have a great fat sound! 0 x Nature abhors a clean tube amp BigBottle Unrated Posts: 8 Joined: Tue 10/24/06 2:00 am Location: Norway by BigBottle I really recommend Frank's for tube data sheets. 6N9P equivalent. Mar 10, 2010 · [size=x-small] Since some time there is a Russian tube on the American and West-European market with the code 6H1Pi that is translated 6N1P. TC,TE Capacitors s. ‘G’ = May 12, 2020 · Does anyone have any experience with the 6SL7 equivalent of the 1578 which I think is the 1579? If so, any recommendations?. The 6AQ6 has a 150 mA heater and therefore has the highest Rp and lowest current carrying capability. The tube is well-liked among guitarists, as evidenced by user reviews on numerous internet forums. Nov 11, 2019 · Recommendations for 6h9c (6sl7) Page 1 of 2 [ 20 posts ] Go to page 1, 2 Next Page 1 of 2 [ 20 posts ] Go to page 1, 2 Next Board index » General Audio Discussion » Tubes All times are UTC Feb 20, 2005 · I've run into one "equivalent" NOS 6SL7's that could not take the normal plate voltage of a 6SL7. Setup properly they should last forever. ANH Capacitors s. Can’t find the best sounding 6SN7 tube? In this article, we reviewed the top-6 6SN7 tubes available on the market at the moment. These are extremely high demand vintage tubes, so I have these listed on their own page, as my stock changes rapidly. As a general rule, New Old Stock European or USA equivalent tubes will outperform and outlast Russian or Chinese stock tubes, so it is worthwhile to look into the possibility of re-tubing your equipment with NOS tubes. 6SL7GT / 6N9S MELZ (aka. What's good, what's not? Mar 11, 2012 · Hey, These are my 6sl7 tubes that i currently run in the Mogwai SE (from warmest to brightest): - RCA - 6SL7GT - Grey Glass, black plates - Tung Sol - 6188/6SU7WGT - Slim base, red print - Brimar - CV1985/6SL7GTY - Brown base - RCA - VT-229 - Black plates, bottom getter, pre WW2 I mostly do the Tung Sol (maybe the same one as you are getting?) and the Brimar these days. NOS Loctal equivalent of the 6SL7GT, most of these amazing sounding tubes were manufactured by Sylvania. Ideal for audiophiles and vintage tube enthusiasts. But really, go for the Tung Sols especially if you love big tube sound. HTH clear up the burgeoning misunderstanding in this thread Aug 21, 2018 · Wharf you should consider building an all octal amp. Next on the ladder is 6SU7, mostly made by Tung Sol. I decided to try scientific approach and measure tube parameters, which may influence perceived The 6SL7 has the same mu as 5751, at 70. Learn about its datasheet, pinout, and equivalents, and compare its performance with the popular 6SN7. May 8, 2016 · I use 6SL7 as drivers for 2 single-ended amps and push-pull EL34 monoblocks. In 6SL7 is an octal tube with dual high-mu triodes. Equivalent to the 6SL7, 6SL7GT, 6SU7, 6N9S Military acceptance stamp “ rhomb ” Aug 9, 2018 · I have had amps that use a 6SL7 tube in the front end and I was only impressed by a few tubes, I tried lots of different 6SL7's. CAUTION: Never substitute a tube at random without doing your homework first! Apr 2, 2025 · Buy 6SL7-T/6SL7-Z/WE6SL7 Tube Pairing Tube Replaces 6H9C 6N9P Amplifier Accessories (1 pc WE6SL7): Preamps - Amazon. Jun 4, 2025 · For Sale: Pair of Vintage Red Base RCA 5961 / 6SL7GT Tubes — Beautiful Sound, Light UseI purchased this matched pair of red base RCA 5961 tubes (military-spec 6SL7GTs) from a respected vintage tube dealer in the U. I would like to upgrade the tubes, what would be the Tubes, tubes, tubes! Find everything from the field of tubes: premium selected TAD tubes, TAD blackplate tubes, our beloved tubesets for nearly every amplifier out there, more brands and accessories. With improved conductivity and stability, this tube delivers a warm, smooth sound, thanks to its advanced ceramics and anode technology. S. You can use a 6SL7 to drive a 6550. Wholesale & retail trade. Mar 28, 2008 · is not really a 6SL7 but rather a substitute. The 6SL7-AT features the Horizon series' exclusive HPC-T coating and a base made Different tube Jamie, though sometimes it can be used in place of 6SL7s. These tubes are highly regarded in the audiophile community for 90. The 6AQ6, 6AT6 and 6AV6. I was looking on the bay and found an adapter that allows the use of a 12AX7 series tube. If you need a quantity of these tubes, or have specific needs such as matching Feb 9, 2013 · Guys, A while back I wrote about some tube rolling I was doing, and that I found that the Brimar CV1985 was one of the best 6SL7 types I've heard, and also the amazing RCA/GE 5691 Red base: GE branded version: I use two of those bad boys in the line stage of my Croft preamp, and they are fantastic, however, I'd like to introduce you to another contender for the best 6SL7 ever made, and that's After testing 3 different 6sl7 tubes in my LM508ai. Tube audio freaks that like octals especially like the 6SN7 as a phase inverter. We find this incorrectly! [/size] [size=x-small] Unfortunately will the notion "equivalent" not be interpreted the same by everybody. MNH Capacitors s. I have several Brimar labeled 12sl7 but I’m not sure where they were made or by whom. Of course the 6SC7 has the cathode shared by both triodes. The 6SN7 is roughly equivalent to a 12AU7 where the 6SL7 is similar to a 12AX7. The JJ 6SL7 tube is known for its dependable performance and is a great replacement for any 6SL7 position, thanks to its high-quality construction. learn more Aug 20, 2014 · 5755 / 420a I worked on many tube designs at the western electric plant . It featured separate cathodes and was designed for use as AF voltage amplifiers, phase splitters and where required as a cascade amplifier of very high gain. Dec 30, 2021 · Yes it is a 6SL7 tube I believe RCA made all of them no matter the name on the tube, like the 5692 6SN7 they are highly sought after and usually command a much higher price then a standard 6SL7 Yes, RCA made all the 5691 and 5692 series tubes. The reverse will not necessarily be a correct replacement. rare and priced accordingly. CAUTION: Never substitute a tube at random without doing your homework first! (*) These specifications are provided 'as-is', with no warranty of any kind. I have lost the address for the schematic but his design/schematic was actually based on this one with small 6SU7 - definitely, it's a 6SL7 with matched triodes. They are not a good match. But its plate resistance is ~1/5th of the 5751's, and Gm is about 4x higher. The 6SL7 has a little lower plate resistance and a bit higher Gm; this means you'll get slightly more gain with the 6SL7 than the 5751, when using the same cathode and plate resistors. Levi I love and appreciate tube based audio gear and own sixteen pieces of tube gear between my two reference systems. So far as I understand it the 6SN7 is about equivalent to the 12BH7 or 12AU7. Inside Europe, please ask for a quote, including VAT tax. I have two identical tubes, one labeled Tungsram made in England and another Brimar made in Holland. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. Higher mu makes this tube desirable for use in voltage amplification stages of audiophile tubes. Classic red-brown base. The 6f8g is a direct equivalent of the 6SN7 and has lower gain than the 6SL7:-) A marvellous tube it is too! yep my mistake,your right. Nov 25, 2020 · A couple of early fender amps did as well and many early fenders used 6sc7 tubes which are, aside from having the cathodes tied together internally, close enough in specs to be considered equivalent to the 6sl7. So why does nobody seem to use these Mar 24, 2007 · In the link an example is given with the 6SL7 as an input tube and a 6SN7 as output tube. You have to be careful to verify the data sheet specs of these other tubes to ensure that they will run in your amp. Mar 10, 2007 · Correct me if I am wrong but I think that the octal equivalent to the 12AX7 is a 6SL7, and a 12AU7 is a 6SN7. 0US $ |Elite Series Linlai E 6SL7 Replace Shuguang 6N9P/6H9C ECC33 Double Plate Current Matched GENERAL AGENT|Operational Amplifier Chips| - AliExpress I would like to give a shoutout to the excellent packing job that Hi-end Audiotube did for my pair of Linlai E-6SL7 tubes. Any circuit examples would be greatly appreciated. Please verify your testimonial by clicking on the link sent to your email after submitting your text. It was then generally replaced with smaller preamp tubes but was rediscovered in the 1990's where it became popular in the hifi audio world. Been rolling VT-229 types for a while now. But it lacks bass and room definition. I have 10 of the 6h9c (in yellow box like in the link) which are excellent and the only 6sl7 produced in russia. I don't think there is any noval tube which is the equivalent. Why do you care? Because the Mu from grid to screen impacts how the screen controls plate current. 4x 6SL7 / 6N9S / 6H9C USSR TUBES New in Box | eBay Oct 4, 2020 · Over the time playing with tube amplifiers, I accumulated some number of various tube to allow me play “tube rolling” game. Mar 3, 2016 · 6sn7 or 6sl7 I have an Almarro A318-B and would like to swap out one of the preamp tubes, but I cannot decide which one would have the greatest affect on the sound. Rare tube with a metal base produced in the 50s-60s. I like the Sylvania tall glass, bottom getter 6sl7 quite a bit as well as the loctal equivilent 7f7. 1 per cent, the superior 6SU7 is a truly amazingly linear tube, but that has everything to do with its specification and manufacturing tolerances and nothing to do with the Tungsol label on the bottle. The 6SL7GT is a medium impedance double triode with high gain and superseded the 6SC7. the double tube. Other western 6SN7 tube equivalent or substitution part numbers are 6SN7GT, 6SN7GTA, 6SN7GTB, CV181 and VT231. my amp is an old ampeg m-12 and i'd like to have a bit more gain. When Sylvania introduced the Loktal base, they made equivalents to the most popular Octal tubes. The Apr 21, 2023 · Is that a new production tube? I didn’t think any old manufacturer made octals with gold pins. Apparently, Sovtek markets a contemporary-manufacture 6SC7 with a glass bottle (considering how similar the 6SC7 and 6SL7 are, from a characteristics perspective, seems likely that they adapted the latter for the different pinout / cathode arrangement). Also chinese tube companies have good sounding non-microphonic tubes I used in the Gibson EH150 build. Now, what is the glass octal equivalent of a 6A… May 30, 2022 · Hi everyone, my integrated Cayin A88T uses KT88 as power tubes, and 6SN7 and 6SL7 as preamp tubes. May 30, 2024 · Please be aware that the 6SN7 heater current is 600 MA where the 6SL7 current is 300 MA. This is the brightest and cleanest sounding tube. Mar 25, 2012 · I'm looking for examples of preamp tube bias-vary tremolo to add to a cathode-biased single-ended amp build. Nov 4, 2018 · Don't get it wrong that I don't like russian tubes. 5 electron Tube Data sheets - 6 electron Tube Data sheets 6 Limiting Values: ua Wc ik uk/f ug+= 300 V = 1,0 W 7F7 local vacuum tube equivalent octal 6SL7 tube. Wondering if a 6SC7 can be reasonably approximated by tying the cathodes of a 6SL7 together. Actually the Raytheon 5755 is the closest. ) double triode tube with separate indirectly heated cathodes, designed to amplify low-frequency voltage in radio engineering devices. We would like to show you a description here but the site won’t allow us. I've tried heaps of NOS US tubes, including red-base 5691, quite a few Mullard and Philips ECC35, and Russian military 6h9c. Other tubes tungsol (new production) smooth and JJ neutral sounding. Apr 9, 2009 · Hi folks, just curious as to the differences between the 6SN7 and 6SL7 tubes. The 6SN7 tube is one preamp vacuum tube that helps music producers and sound technicians recreate the yesteryear vintage tone. The 6SN7 is basically two 6J5 triodes in one envelope. Aug 9, 2010 · Nostalgic Kit CentralTube Interchangability Reference The following should be direct substitutions. Logged Mar 14, 2014 · Many people have discovered how wonderful octal triodes such as the 6SN7 can sound. The options are endless Nov 2, 2019 · As I understand it the 6CG7 is exactly the same as the 6SN7 except it's a miniature 9 pin tube? Has anyone here ever compared the sound of these two tubes? Apr 22, 2008 · Re: Substitute for 6SC7 in preamp? by Phil_S » Thu Mar 26, 2009 1:24 pm Commonly available octal dual triodes are 6SN7 (very much like a 12AU7) and 6SL7 (like a 5751 and probably closest octal sub for a 6SC7). Matched in pairs or quads these tubes are NOS and very good sounding! Attention: This is an export Price List, valid for companies in the European Community with a VAT Identification number, and for companies or private persons outside the European Community. Jul 10, 2017 · Hi I was wondering if anyone has experience with the 6LS7 tube? I recently purchased a tube linestage that uses these tubes and am not familiar with them. The first section of the table lists 4 digit and European types sorted in numerical and alphabetical order with USA type designations in the second column. thx alex Apr 28, 2015 · I'm sure this is common knowledge to many of the tube guys here. com FREE DELIVERY possible on eligible purchases Tube Cross Reference. But doing a drawing of the internals, I find the 6SL7 connected as one Order Reflector 6H9C / 6SL7 preamp vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. In socket octal closer to the 12AT7 as 6F5, or other vacuum tube? thanks Tubes are made of glass and are therefore fragile. With both sections wired in parallel to halve the plate resistance this can work well and offer the possibility to build a simple two stage amplifier. I see that there is a "Northern Electric" 6SL7, and there is also May 21, 2003 · Anybody knows if there is a tube with single section, that is electrically equivalent to 6SL7? Also a single section equivalent of 6BL7? Alex Deveza Jun 20, 2007 · My own opinion: 12AX7 is insufficiently linear. 6SN7 variants: [* = definitely a safe 6SN7 substitute] ALWAYS ASK YOUR AMP MANUFACTURER FIRST BEFORE SWAPPING TUBE TYPES!!! 6SN7GT* - First designation of the 6SN7 tube type. Improper installation, use and handling can lead to serious or life-threatening injuries and/or damage to the products. Has anyone ever attempted this? 6N9S Tube double triode REFLECTOR. Are they interchangeable? Is there a view on what 6SL7 tubes are good and where to get them from? John VT TUBE CODE CROSS REFERENCE CHART Due to the numbering schemes in use there are three variant classifications of VTxyz valves; the USA types, the UK military types (VT = Valve, Transmitting), and the UK GPO types. Ultimately, whether you choose a rare sought after NOS VT-229/6SL7 or simply looking to get the best quality tube you can without breaking the bank, our guide will help you choose the best 6SL7 for your audio amplifier! 6N9S tube : 6SL7 Tube Equivalent What is 6N9S Tube? The 6n9s tube, hailing from the Soviet Union, is a double triode tube known for its amplification capabilities. Worldwide shipping. Our dear departed friend Keggar had built a 6l6 based amp with 6sl7 input tube. The 6AT6 is most like a 6SL7 and was common in old radios, as was its 12 volt brother, the 12AT6. They took the presentation box which has has a contoured foam insert to protect the two tubes and wrapped it in 13. 8-pin with octal with a key Near equivalent to tubes: 6SL7, 6SL7GT, 6SU7, 1579 Sep 9, 2020 · Reviews of 6sl7/ECC35 vacuum tubes and equivalents You could use a 6SL7 in the preamp position of a Lite IIb, or the Normal channel of a classic/trem 18W. Equivalent to: 6SL7, 6SL7GT, 6SU7, 1579. If you need a quantity of these tubes, or have specific needs such as matching My Favorite Tubes and Their Substitutes by Robert H. It was a commonly used tube from the early 1940's into the late 1950's. 6SV7 - pentode, sharp cut-off - can be used for audio. I liked the Tung-Sol 6SU7GTY with black glass and Black Plates. It provides a medium gain (20 dB). Octal, IO) K8A, USA 1935 and Audio Frequency shown. The 5755 / 420a tube is very close to the mullard 12ax7 ecc83 internally . This tube is sometimes called the equivalent for 6DJ8/ECC88 or 6922/E88CC. New production & NOS pre amp compatible tubes from Tung-Sol, Sovtek & other various brands! Sep 22, 2025 · The 6SL7 preamp vacuum tube from JJ Electronics is a new addition to the classic octal base dual-triode lineup. But, it might be helpful to us tube Aug 27, 2016 · I have a bunch of 6SL7s in my tube stash both tubes have mu = 70, but slightly different place resistance / transconductance. I would like to use a single twin triode 6SL7/6SN7 octal base preamp tube to drive it. May 26, 2016 · The 6SL7 has also been used as driver tube for small triodes like the 45 or 71A. They are easily adapted over to octals. 1579, 6H9C / 6Н9П) NOS Double triode equivalent to or directly interchangeable with 6SL7GT, ECC35, 6113,… The CV181-T/2 Psvane Reference MarkII T-series get shipped as factory matched pair. The 6SL7 is the one I would use because they are the equivalent to the original 12AX7 (or 6EU7) that the amplifier normally uses. Mullards are lush and nice but falls on speed and prat. Russian electron tube 1579 double triode with separate indirectly heated cathodes, designed to amplify low-frequency voltage in radio engineering devices. VT-229 and 6SL7WGT variants are military spec versions. I would never use it. On the dry side. VNH Hi End Amplifiers Guitar Amplifiers COMPANY PROFILE NEWS CERTIFICATES GDPR CONTACT Sep 19, 2017 · The only ones I have direct experience with are the old-school GE metal-envelope variety, and they are perfectly fine. In the cases tabulated below there are more than one valve for a given VT marking. Nov 4, 2018 · There is no exact equivalent that I know of, but the 6AT6 is pretty close, probably within tube to tube variations. Without a thorough knowledge of tube types and their substitution possibilities, you may be over-paying for your new or NOS tubes you employ, or just pick the wrong ones. I experimented with two major types of low signal tubes: 6SL7 and 6SN7. The Sound is nice - authentic vintage tone. It shipped with NOS Reflector 6H9C tubes, which are a 6SL7 equivalent. It is a long page, use your scroll button and scroll down the page to see it all. 4available also sockets,ask. Apr 6, 2013 · The 6SL7 seems to have more space, openness than the 12AX7, BUT one thing I learned early on is that if you are going to put the 6SL7 in hi-gain applications be sure to use DC on the filaments, otherwise they will hummmm like crazy because the filament cannot be paralleled, unlike the 12A*7 Novals. Tube 6SL7 or Röhre 6SL7 ID2112, Double Triode, Octal (Int. The 6SL7 seems to work fine at typical 12AX7 plate and cathode values, eg 100K/1K5, but the 6SN7 needs much lower values as it draws more current, similar to the difference between the 12AX7 and the 12AT7. Explore the 6N8S tube, a USSR triode vacuum tube. (Since 2021 we must charge the VAT of the receiving country) Please also check in the price list under NOS! Not all tubes in the price list are Apr 12, 2013 · Gain is 70 for the SL7 and 20 for the SN7. When using 12AU7 and 12SN7, S3 onboard switch must be Jan 16, 2021 · First, an EF86 has about 15K plate resistance in triode mode, but the gain is very low, about 22. Jul 10, 2012 · hi, did somebody swap 6SL7 tubes for 12AX7 in his amp, i know you need a converter to do that. Jul 19, 2013 · As I understand it: 6SN7 is a 6v equivalent of a 12AU7 (Amplification Factor 20 vs 20, Class A) 6SL7 is a 6V equivalent of a 12AX7 (Amplification Factor 70 vs 100, Class A) What is the 6S?7 drop in equivalent of a 12AY7 (Amplification Factor ? vs 44, Class A) Please advise, revise. Russian double triode 6N9S tube manufactured by MELZ. Made in Russia 1979 these tubes are made for the Red Army and have an OTK test signature. The Almarro uses a 6sl7 as the input tube and the 6sn7 as an "anode follower" (I'm not sure what that is?). With two independent triodes housed within, it has the power to amplify electric signals effectively. It can be used as a direct replacement to standard 6SN7 or ECC32 tubes of all make. I can only afford to do one now, so hence my dilemma. An octal-base medium-mu twin triode tube, the 6SN7 functions as an excellent audio amp, thanks to its abundant power reserve and oversized This page lists all of the 6SL7 tubes I currently have in stock, including all industrial and European versions. . The Loktal type 7F7. As a result, if you wanted to bias the 6SJ7 to the same operating point you have with the EF86 in its circuit, while using Reflector 6N9S 6SL7 For sale are offered single tubes 6N9S the Russian equivalent of the US 6SL7. There are 3 pin compatible flavors of this tube. This would be visually much more appealing than the to have 9 pin power tube and octal input tube. Due to its clean and neutral sound, it has found wide application in the preliminary stages of tube amplifiers. Usually VT-229 is from much earlier era than WGT Jan 17, 2011 · Re: Opinions on 6SL7, 6SN7? by M Fowler » Tue Dec 13, 2011 10:50 pm I use new production tubes and they work quite well. Tubes can become very hot and are generally operated with high or very high voltages. This example from General Electric looks to be new and unused with perfect matt balck paint. another variant is the 6188. NOS in BOX Sep 9, 2002 · are these the same tubes? whats the difference?hifi1970 09-09-2002 8:28am 6SL7GT (aka 6N9S / 6H9C / 6Н9П) made in Russia (NOS) equivalent with the chinese made 6N9P Apr 25, 2019 · I know there's all kinds of variables but I'm getting a new tube pre and it's extremely versatile in the different types of tubes it can use. Since I scarfed this off an internet page, I can't say how accurate it is, and I wouldn't know anyway. Just increase the anode load resistor to somewehere around 180k or 220k, to compensate for the gain loss. May 14, 2005 · - Headings and important sections in RED - Color of opinions quoted corresponds to original thread. You could use parallel sections for a plate resistance of 22K, which would probably be adequate, but even better would be 1) an SRPP arrangement, or 2) use one half of the tube as simple gain stage, and the second half as a cathode follower driver. Radio tubes are valves. Tube Depot carries a selection of 6SL7 Pre Amp Vacuum Tubes. The 6SC7 is a metal enveloped double triode, these double triodes have been used in guitar amplifiers and the ECC83 is used for upgrades although the 6SL7 was the first successor valve in the early 1940's. Currently I'm aware of JJ, Tung Sol, Sovtek, and a few other Chinese makes. The Sovtek model is Mar 5, 2008 · Hi, I have a doubt, the twin 12AT7 high mu triode is close to the 6SL7specifications or there is another valve. 6SL7 is a much better choice and the fact that its mu is only 70 compared to the 12AX7's mu of 100 should not matter in most applications. Use of these parameters shall be entirely at the user's own risk. Nice prat but can get easily fatiguing Feb 17, 2014 · 6SN7 is equivalent to a 12AU7 6SL7 is equivalent to a 12AX7 If your 6SN7's have enough gain for you, then use them. tried various 6SL7 brands, 6SU7 and ECC35 as well. The yellow print 1960's productions Thanks for your input 6N9S / 6SL7 / 6SU7 tube Vacuum tubes, Capacitors, Nixie Tubes, Indicators, VFD display, LED, Sockets. If you can pick up some NOS Tung Sol 6SL7s from the 60's or before, those are some of the best I've heard. The 6N9S (6Н9С rus. com Even qualities like tube longevity, which guarantees sustained performance over time, is an important factor to consider. According to us, must a tube which can be used The 6SN7 vacuum tube is a dual-triode preamp tube with medium gain. All Psvane tubes get retested at TAD to ensure the perfect quality 6SN7 vacuum tube dual triode made by Raytheon 6SN7 is a dual triode vacuum tube with an eight-pin octal base. Here's a snippet from manual MP-701 supports 12AU7, 6922, 6DJ8, E88CC, 12SN7 and 6SN7 preamp tubes. 5691 is the industrial long life version with extra mica supports for lower microphonics. Great sound! Near equivalent to the 6SL7, 6SL7GT, 6SU7, 1579. I generally believe in modern manufacturing so I'd like to taste new production tubes. Like the 6SN7 which has a Loktal pendant in the 7N7, the 6SL7 also has a Loktal equivalent. Customers are pleased with the Related Post: Soviet/Russian Tubes Equivalents Sep 8, 2009 · I found this (chinese) 300B PP amp, using 6SL7 as first tube (and 6SN7 as driver). Since the quantity (mu1 - mu2)/ (mu1 x mu2) in 6SL7 rarely exceed 0. The Tung Sol (which is As a general rule, New Old Stock European or USA equivalent tubes will outperform and outlast Russian or Chinese stock tubes, so it is worthwhile to look into the possibility of re-tubing your equipment with NOS tubes. A first introduction of this special project that succesfully turns Loctal tubes into more common Octal tubes!Link to our online store: https://valvesnmore. The EF86 and 6SJ7 have similar Gm, but the triode Mu is different; Mu g1-g2 of the EF86 is 38, where it is 19 for the 6SJ7. Please report any 6SL7 preamp vacuum tubes are in stock and ready to ship! Upgrade your tube amplifier and preamplifier now! Also find reviews and more.