e. some said, I must replace the 12AX7 tube, so that what I will going to do, but I still confuse what is the best 12AX7 tube for delivering a deep, warm & bright sound for bass, with less noise help me please. Vox used'em, and so did Matchless and Dr. SOME GENERAL INFO ABOUT THE 12AX7 TUBE:From Wikipedia, the free encyclopedia Jump to navigationJump to search Question book-new,svg This article relies largely or entirely on a single source, Relevant discussion may be found on the talk page, Please help improve this article by introducing citations to additional sources, (February 2019) 12AX7 12AX7 PREAMP TUBES. It can also be used to replace 12AX7 tubes in position 1 to reduce gain. A 12AX7 has a gain factor of 100. Are you looking for the very best tubes for your vacuum tube amplifier? This is the place to start. A Jan PhillipsECG 12AX7WA has the same definition, but with more warmth. We carry premium hand selected vacuum tubes for guitar and HiFi amps. The smooth plate is one hell of a tube. If you have a tube pre-amp, I’d recommend indulging in a vintage Telefunken tube at least once in your lifetime. Midrange bloom is almost as good as the Siemens. JJ - Can take the transient response and high end shimmer and tend to flatten it out. 12AX7 HOLLAND 1960-1970 like new and used/good (tubes in this section can 12AX7 PHILIPS HOLLAND 1970-1972 (lively and punchy sound, good bass,  3 days ago Downsize your rig with these ultra-lightweight bass heads. Nov 19, 2013 · Spending $100 or more on a pre-amp tube is not for everyone. , Upscale Audio, Parts ConneXion, Tube Depot, etc. The bass is blurred however and really poorly defined, basically mud city. Genalex 12ax7 Gold Pins – the best new production tube from New Sensor, produced in Saratov, Russia. " This truism places the 12AX7/ECC83 class at the top of a list for the most important tubes in your amplifier. Therefore, preamp tubes will impact your tone more than any other tube change in your amp, especially in the V1 slot (closest to your input jack). This is a the "5 12AX7" version of the Doug's Tubes preamp tube cocktail kit and we've received great feedback on it. But at the same, it became very difficult, or almost impossible, to Re: The Big 12AX7 Tube Test, what is the best Post by Anitoli » Sun Jul 24, 2016 8:33 pm There is an easy way to tell if the tubes are Chinese, look for the shiny metal plate that wraps around the plates on both sides. With eleven valves across the preamp, power amp and drive sections, if you're after tube performance, this is one of the best bass amps to try. They are famous for their solid bass, warm mids, and fabulous highs! Amperex which was own by Philips also re-labeled tubes from many sources, as did most companies of the time period. Top is extended but not harsh at all. IMHO!!!! All the best Les Ampeg SVP Pro Bass Preamp ULTIMO Tube Set Gold Pin 12AX7 12AU7. The following guidelines should be taken into account: The free shipping option allows TubeDepot to choose the most appropriate carrier and service. 4ma) 1968 partially smeared logo Good Ma = 1ma Good Gm = 1600-1800 Recommended for Lamm Industries ML3 Signature mono amps Nagra PL-L preamp VTL 7. 71; or Best Offer +C $131. A high input makes possible to attain full power and provides greater volume and headroom. Date of birth 2013. The 12AX7 tube type (also known as ECC83 in Europe) is so popular that you can find at least 1 in practically every current production tube guitar amplifier. Basic 300B construction. . First developed in 1947, it is now the most commonly used tube in the world. View all results for 12ax7 at Sweetwater — the world's leading music technology and instrument retailer! 300-watt Bass Amplifier Head with 12AX7 Class-A Tube Sep 12, 2013 · Tube types. The sound of this tube is full and musical. Short plate structure for reduced microphonics Best for guitar amp circuits 12AX7 / ECC83 valve equivalent I tried several types of tubes for my Blackstar Ht-1 and HT-5 head amps with only 1 tube in a preamp section and actually found that these JJ ECC83 tubes give me most dence overdrive, compared even to more expensive and refined Electro Harmonix tubes. Tung-Sol 12AX7 - Preamp Tube. Probably the best 12AX7 GE made, maybe even better than the famed blackplates. " One of my customers bought this tube with an adapter for his 12AX7 based amplifier. 12AT7s might also work. 12AX7 Basics. Valve or Tube amplifiers This is the ultimate preamp tube to use in all critical gain stage positions - The absolute best of the best! Substitute preamp tube in select, critical stages of MESA/Boogie Guitar & Bass Amps, Preamps, Power Amps, V1 & V-Twin Pedals. Usually all the tubes therein are 12AX7/ECC83 types. If you want that gorgeous valve amp tone without having to blow out your windows or annoy your neighbours, here's the best tube amps for home use. The next best is a Sylvania 12AX7/ECC83/7025 About the sam, less definition-good warmth. I'm not a fan of the Tung Sol, at least in a Fender Hot Rod Deluxe. They are also widely used in recording studio outboard gear such as Mic preamps and such. The 12AX7 is often used for guitar input circuits, phase inverters in high gain amplifiers, reverb recovery circuits, microphone preamps and direct boxes. Buy your JJ Tubes 12AX7/ECC83 Preamp Tube from Sam Ash and receive the guaranteed lowest price. Organ tubes, being made by famous makers and factory-screened, are about the best "secret" bargain in NOS tubes today. Made in China. makes the sound slower and less defined despite the bass weight is quite good. Sovtek WA - Not really a bad tube, no peaks, and the high gained versions of these are actually good. The next best is a Sylvania 12AX7/ECC83/7025 About the sam, less  Best 12AX7 Review. Country of Origin: Slovakia Premium high gain, low noise twin triode preamp tube. You want quiet recordings? You want this tube! A Comparison of Current Production 12AX7 Tubes. The Monoprice 611705 is a tube combo amplifier with impressive specs at a very affordable price point. NOS RCA ARE THE BEST SOUNDING 12AX7 TUBES EVER PRODUCED! Mar 16, 2015 · This tube is a main stay in many recording studio Guitar and Bass Amplifiers. You will pay dearly for them, but if you want the best, this is the tube! Telefunken ECC83 / 12AX7 This tube is a main stay in many Guitar and Bass Amplifiers, Microphones and Outboard gear. The Mesa/Boogie shined the brightest in my DSL1CB. Using a K-12 tube amp with a NAD C542 CD player, there is no need for a buffer or line level preamplifier. 12AX7=ECC83 / E83CC SIEMENS WEST GERMANY 1960-1975 (ECC33=12AX7: clear/transparent, detailed, lots of inner-resolution, extended high-end, tight accurate bass and mids) (E83CC=Special Quality 10,000+ hour 12AX7, very low noise, highly recommended for phone stages) - AESTHETIX IO PHONO (the best possible tube for this phono, nothing compares Nov 06, 2007 · (However the Mullards were some of the best 12aX7s that I have tried. Other amps use 12AU7 or 12AT7 tubes, which are similar to the 12AX7 but have lower gain. Nov 02, 2011 · The most cost effective NOS ANOS that I know of is the Raytheon long black plate 12AX7. While considering the one that would serve you best, make sure to identify your priorities. 12AX7 – There are current production tube available called re-issues from Mullard, the most musical midrange but in many brands maybe not the best bass. Bass was still a bit too pronounced in the AudioNote, but was now under control in the big amp. JJ Electronic ECC83MG - 12AX7 Factory Data Sheet: ECC83MG Our observations: Another 12AX7 variant from JJ. TungSol 12AX7 handles everything from vintage rock sound to modern high gain tone. However, the plate resistance and transconductance are such that this tube makes a good substitute for type 12AX7. This tube was a little microphonic though, which may explain the strange behaviour. He reported back to me: 'best I ever had' even NOS stuff like Mullard is nowhere near the performance of this tube. This tube has all the extension and bass that you'll need. L's. Create your own unique tone and love your gear again! I tried other brands of 12AX7's in V1 and V2 including EH, Fender (7025) and Ruby with varying results but the biggest change came with putting a 12AU7 in V1. Telefunken ECC83 / 12AX7 The Telefunken was made with both Rib Plates and Smooth Plates. there a lots of good sounding tubes that hiss like a basket of snakes . Both power n rectifier tube, made in great Britain n are vintage tubes, 12ax7 I think is UK too… The item “Vintage orpheum univox valco guitar tube amp 63-4w tremolo el84 12ax7 ez81″ is in sale since Sunday, March 10, 2019. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of current production options to choose from. But it actually only has green lettering on the faceplate. According to the GE technical manual, the 5751 is a special quality tube for use in critical industrial and military applications in which operational dependability is of primary importance. With 12AX7, the plate resistance = 70k, tube gain = 100. I'm sure if asked some people would have found the smooth plate less to their liking than something but on the whole the tele smooth plates are the most loved 12ax7 nos tubes available. Apr 13, 2011 · Sophia 12AX7 compare to Siemens 12AX7. This tube is to the EL34 family what the Tube Amp Doctor 6L6s are to that variant: a taste of the very best at an Everyman’s price. Doesn't make since. It has good balance and good crunch. In that case, Blackstar HT-1R would be my first choice. You will pay dearly for them, but if you want the best, this is the tube! Telefunken ECC83 / 12AX7 This tube is a main stay in many Guitar and Bass Amplifiers,  Get the guaranteed best price on Preamp Tubes like the Mullard 12AX7 Preamp Tube at Musician's Friend. The output impedance of the 1st gain stage is equal to the plate load resistor paralleled with the plate resistance, so in my case it is about 51k, which is a bit high to drive a real load. Originally, the 12AX7 / ECC83 vacuum tube was introduced to be a superior option for lower noise and microphonics over the 6SL7 tube that was commonly used in the 1940s. I tested the SPAX7 against three others; a Mullard, a JJ, and a stock one from a Marshall 1watt tube amp, in everything I could find that uses a 12AX7 preamp tube. It has two 1/4 inch outputs for 8 & 16 ohms speakers. What are the best (non-NOS) 12ax7 tubes to use for the Mesa Mark series amps? Also is it worth changing the preamp tubes if the amp seems to be working (with potentially 20 year old pre-amp tubes)? Jul 28, 2010 · Best 12ax7 for a 5E3 Deluxe is a 12ay7. When it comes to selecting the tubes for your amp, there are no right and wrong choices, there are only the tubes for instrument amps that work best for you. The 12AX7 is a 9-pin miniature, high-mu, twin triode. These Philip Electrohome I65-type tubes are some of the best sounding 12AX7’s ever made. was the originally supplied tube to Fender in the 1950s if you want to be period-correct. Sep 06, 2007 · Electro Harmonix 12AX7 EH is a nice, strong, bright tube. They are hard to find and when they are available, they are expensive. The tonekit allows hi-fi and guitarists alike to experiment and "tube-roll" preamp tubes in different slots of their amp. It’s worth it for that classic 60s sound. 12AX7 preamp tubes play a remarkable, dynamic role in the creation of the final tone in your vacuum tube amplifier. We had just run out of this tube not to long ago, and it was looking grim for all our customers who are big fan Jun 14, 2012 · (4) To force the bias-point, the correct self-biasing cathode resistor is chosen, or better, several tubes are set up in a rig, and the resistor is selected by experiment to put the bias-point in the best compromise position between the acceptable range of tube samples. A Comparison of Current Production 12AX7 Tubes. Whether you're holding down the rhythm section in a reggae outfit or making floors rumble in a black metal quartet, the perfect tube bass amplifier head for you is only a few easy mouse clicks away. A guitar tube, not bass, unless you like high gain, easy distortion. USA Tube Audio - 1-800-676-1085 Ext 2 - paul@usatubeaudio. RCA and Sylvania first introduced the 12AX7 to the world in the late 1940s. Both came in my Carr Slant 6V, swapped them with all kinds of tubes including NOS and I ended up with the origional EH and Tung Sol in it. Jul 08, 2016 · Recommend Svetlana KT88s, they seem to be the best currently available. MESA SPAX7 preamp tubes are a super-premium grade substitute for any 12AX7 positions. Top. Original Genalex Gold Lion ECC83/B759 tubes are considered among the best 12AX7 types ever made. Excellent for use in high gain Marshall pre-amplifier circuits where noise and microphonics can be a problem. I am also digging the TAD 12ax7A-C. 99 $ Nov 15, 2017 · Laney Cub 8. and how quiet. The supposed downside of long-plate tubes is that they get beat up in combo amps and fail quickly. The JJ 12AX7 / ECC83 Preamp Vacuum Tubes (Three Pack) are one of gold standards for preamp tubes and these are the best! I replaced one in my Marshall JCM 2000 Head and so far so good. I've never tried it before, but my basic questions were answered and now I'm going to give it a whirl. 99 Hifi 12AU7+12AX7 Tube For new production tubes, the Tung Sol 12AX7 "reissue" (in the loosest sense of the word) is one of the most popular 12AX7 on the market. For the best experience on our site, be sure to turn on Javascript in your browser. Do NOT use 5V4/GZ32 as they may fail and cause damage not covered by warranty. Then there are the Electro Harmonix tubes. Sep 15, 2016 · An all-tube Carvin V3, equipped with five 12AX7 preamp and four EL34 power tubes. Jul 08, 2016 · Both terms mean the same thing–an oscillator makes a low-speed signal that varies the gain of the guitar signal. Mar 31, 2015 · 6922 Tube Review - 17 Top 6922 6N23P E88CC CCa 7308 E188CC tubes Yang for a rich creamy mid-range and tilt to the bass. When the guitar sounds reach the bass levels, they consist of a well-rounded and solid sound. the . Bass is not the best but it’s not flabby either. We have carefully matched these into pairs. While there are many different types of preamp tubes, the most common type is the classic 12AX7. Additional options for your preamp tubes when needed: Tungsram 12AX7/ECC83- When I think of this tube, I think of turning up the color much in the same way the classic Mullards do smooth, maintains top end, excellent bass. Best 12AX7 For Guitar and Bass Amps. This valve has low microphonics and is useful for lowering the gain of an amplifier to provide a clean tone. Same gain. A 12AT7 has a gain factor of 60, meaning it has 40% less gain than a 12AX7. See our 12AX7 Page for full listing Best 12AX7 For Guitar and Bass Amps. At least in V1. Made in Russia. tubse then went to JJ ECC83 and now to the Tung Sol and the Tung Sol as by far the best sounding tube In most amp circuits, it is common for each stage to be controlled by one preamp tube. Call 800-472-6274 for expert advice. $42. You can try lower gain tubes as welldirect low gain tubes for the 12AX7 is the 5751 and Apart from NOS, I would say the best AX7 made today might be the Telefunken branded ones, made in the JJ plant unless I'm mistaken, to slightly different specs than the JJ ones, and the New Sensor Russian made "Mullard" branded ones, which have little to do with Mullard except for the brand name, but are still good for new tubes. and application there will be several good options but nothing will be perfect every time. They are a "Special Requirement Preamp Tube" that possess an even higher standard of overall performance, due to their incredibly low sensitivity to microphonic noise. 3V or series at 12. Adding an EF86 to any tube amplifier. Soundstage and tonality are equal on both tubes. A Comparison of Current Production 12AX7 Tubes by Kurt Prange. flat freq. audio preamps, guitar and bass amps Who are the best tube manufacturers? His basic preference in modern production tubes seems to be JJ for EL84s and Electro Harmonix for 12AX7. TungSol 12AX7 is our go-to tube for guitar amps. The first EH 12AX7's were the exact same plate as the LPS which was 5/8" long. Shop for the JJ Electronics 12AX7 / ECC83 Preamp Vacuum Tube and receive and installing different brands of tubes in search of the best, however subject, to distort way beyond the usually desirable range between a natural bass sound   If you need to replace all of them, you will need three 12AX7 tubes, two 12AU7 tubes, I need to replace the tubes in my Ampeg SVT-CL bass amp. I haven't been able to try them, but I'd assume they're made in the USA. Bass definition is much better on Sophia. Formerly BOI AudioWorks. When it comes to the best 12ax7 tubes, we have to give it to the JJ Electronics Amplifier Tube. We keep receiving tons of questions of readers who are going to buy these stuffs, eg: What is the best Psvane 12ax7 for 2019, for 2018 or even 2017 (old models)? What is the best Psvane 12ax7 to buy? What is the best Psvane 12ax7 to buy on the market? Aug 26, 2007 · You may have noticed the other thread I recently put up asking about tube rolling. ) Back on the subject of 12au7s, the Telefunkens lost out because they sounded clinical/analytical/lacking emotion, although they were very impressive in terms of sounding clear and correct, with bass, mids and highs that were evenly distributed (i. Guitars Basses Acoustic Guitar Amps Bass Amps Audio Parts Best 12ax7/7025 brand for very long lasting, have even gain and good balance from tube to tube. Also included in this comparison are direct substitutes for the 12AX7 including: ECC83, ECC803, 7025 and 5751. The EF86 pentode. Get the best deals on Preamp Home Audio Tube Pre Nobsound Mini Vacuum Tube Preamp HiFi Stereo Audio Pre-Amplifier Treble & Bass. 12AX7 is a high gain tube often used in the first stages of tube amps. the Gold Lions are about 40 bucks . Many consider the Telefunken ECC803S as the "best" 12AX7 replacement, but a grand for a tube is a bit much for most. But it also has a bit of headroom. These combine The 12AX7 Tungsol has high gain, ultralow microphonics and superb linearity. Its is known to lack on the trebble side but also bass. TubesForAmps is your source for replacement vacuum tubes. Jan 03, 2020 · BUGERA BUGERA BC15 best cheap practice combo tube guitar amp under 200 dollars-2020. First, let’s look at some different types of tubes. Top End almost as good as the Siemens. With a 12AX7 in the front end, a 6V6 for power, and solid-state rectification, the Cub offers a useful range of sounds that can optimized for a cleaner response by using the Low input. Home › Preamp Tubes › 12AX7 / ECC83 / CV4004 / 5751 Preamp Tubes – 12AX7 / ECC83 / CV4004 / 5751 Tube Basics and FAQ Feb 05, 2013 · Beware of fakes when looking for vacuum tubes. Don’t ask me why; it has the best bass of the bunch, sweet clear highs, and is maybe the loudest tube of the lot. It also comes with a Celestron brand speaker and an ECC83/12AX7 pre-amplification, all of which works to deliver the top quality sound this amp is most notable for. Tung-Sol 12AX7 delivers good gain without washing out the fine details and textures. Electro-Harmonix tubes are all new designs and are of excellent quality. At its core is a 5-watt amplifier with a single 12AX7 preamp tube, and a 6V6GT poweramp tube - a combination that big name manufacturers, and even expensive boutique amp builders go for. Key Features. They are $$$. 3:56 Harma 12AX7 / 7025 Tube Reviews. So i tend to use Chinese or JJ 12AX7 tubes in the Cathode Follower since they can handle the Heater to Cathode voltage fine. 6V. Z. Many were from Heerlan, Holland (with a delta-shaped factory etch code) Did you know that Electro-Harmonix makes many of the world's greatest vacuum tubes? The next time you need to re-tube your guitar, bass, or hi-fi amp, be sure to insist on getting authentic Electro-Harmonix tubes. Featuring 12AX7 pre-amp tube and EL84 power tube for the purest tones an 8-inch speaker can provide. This tube amplifier features a 5-watt tube amplifier. Good poweramp tubes will help your post eq (bass, headroom, tightness, etc), so think of these variables when you decide on your tubes. All 12AX7 tubes have an amplification factor (μ) of 100 ("high-mu"). Recent JCM600, 800, 2000 and “Master Volume” amps have complex preamp circuits. 12AX7s are components, early in the circuit, that determine how clean or, how lush, layered and massive the high gain will be – not to mention all the tonal shades of grey in between like clipped, overdriven and crunch sounds. Find many great new & used options and get the best deals for Tube Stereo Tone Control Baxandall Type Treble/bass Using 12ax7 at the best online prices at eBay! Free shipping for many products! best bass or close to that 12AX7 tube. Groove Tubes 12AX7-M? (Mullard ECC83 copy aperently) Svetlana? JJ? EH? i need 'em for a plexi, under high-gain stress of course :D i was planning on getting the EH ones, but i hear that Mullard were the best? Oct 31, 2018 · Mullard ECC83, 12AX7 Mullard ECC82, 12AU7 Mullard ECC81, 12AT7 Philips ECC83 TUNG-SOL ECC83 Audio Classic ECC83 TAD ECC83 Mesa Branded ECC83 Marshall Branded A Comparison of Current Production 12AX7 Tubes. Nov 01, 2016 · It’s still going strong and it stood up very well to all the other tubes on review here. This is a full, warm tube with tamed highs and rich mids. This is a very low gain tube that seemed to drastically reduce volume but cleaned the amp up to a great clean and warm jazzy sound perfect for bedroom level playing. The configuration is based on the legendary Baxandall type which is well proven in performance and sonic quality. There is a vintage tube that is quite popular called a Philips 5R4GYS. Just be sure to order a tube with balanced triodes for the PI slot, but that goes for any tube in that position. The JJ EC883S (the old European designation for 12AX7) is known to be a dark sounding tube, if that appeals to you. As well it offered more gain. In my setup, simply the very best value in current production EL34 family tubes. These tubes are well balanced, and have a colorful tone with strongly defined lows, mids and smooth highs. JJ Electronics Amplifier Tube T-12AX7. The Mullard short plate 12ax7 if highly regarded as it should be! Vintage Mullard 12AX7 made in the 1960's and 1970's have great accentuated midrange tone and bass, and are an overall excellent 12AX7 choice for Hifi and guitar amps! Just $199. I researched around and found folks upgrading the stock Bugera 12AX7 for Tung-Sol 12AX7 for more clarity. The lamp itself is probably not bad (and that is why, careful, I note still "correct") and I do not doubt it to be the case in other circumstances, but I much prefer her Groove Tube, Ruby or DD. Check out the following tube reviews for guidance in getting the best possible tone out of your tube gear. . Dec 16, 2008 · That’s why good tube distributors need to routinely test tubes they sell: put even two high-quality NOS preamp tubes from highly respected American or British manufacturers on a tube tester—say, a pair each of Mullard or RCA 12AX7 preamp tubes that came out of the factory on the same day in 1963—and they will most likely have slightly This amp is a recreation of the classic - and much desired - Ampeg amp. 24 Jan 2001 JJ/Tesla 12AX7 tubes are my favorite current production preamp tube. It has one input along with volume levels, treble and bass controls. These tubes are some of the best sounding tubes Dec 17, 2016 · Do different 12AX7 preamp tubes (sometimes referred to as ECC83) -and equivalents such as the 12AT7 - make any sonic difference? We try several sets in the V1 position to find out. Although cranking tube amps right up and letting rip feels and sounds amazing, it's not always practical when you're at home. It is simply too dark and muddy, even in the AC30. This is a warm, thick, dense tube with world-class tonality for lovers of guitar music from Esteban to Stevie Ray Vaughan. I tried several types of tubes for my Blackstar Ht-1 and HT-5 head amps with only 1 tube in a preamp section and actually found that these JJ ECC83 tubes give me most dence overdrive, compared even to more expensive and refined Electro Harmonix tubes. Ayon Audio Epsilon Mono Amps Pure Class A for sale. Most tube amps need multiple preamp tubes to perform various functions. I found them very smooth and well balanced in terms of bass, mids and treble response. And those who loves tube- rolling would definitely find it a heaven-sent! It was really "ear-opening" to listen to so many rare 12AU7's. The finished board can offer both bass and treble control. 2ma) 1963 1 tube) Gm=1720/1730 (1. I'm using a Pro-Ject Phono Tube Box II with 12AX7 tubes. allows you to run through or bypass the single 12AX7 tube - an inventive option. Even the "cheapest" ones are faked or well-used and sold as new. 00/pair Please check out the new Shuguang Psvane 12AX7-T as replacement. This characteristic is controlled by a "microphonic stability" test for balance in which the tube is tapped at shock levels of 400 - 600G. Golden Dragon 300B: About $250/pair. Sovtek Electro Harmonix 12AX7EH: A slightly different version of the sovtek LPS. It is an Excellent tube for Recording Studio Applications due to its extreme low noise. RCA 12AX7, Same. Nitewalker Bass Guitar Tube Preamp is a proven vital new idea for Bass Guitar Players wanting a richer tone – Low register and High, wanting real time solutions to troubling tonal choices. com0% Financing Available for 3 Years!Axpona 2019 "Best Sound" Enjoy The MusicAxpona 2019 Audio Oasis Award from Positive Feedback Audio Oa Aug 29, 2018 · That would be my short list of best low-watt tube amps. And having rather flat I don't trust this tube at all. Mullard ECC83, Great tone. For me the best tubes get it right in the Here, we’ve done the hard work; we’ll share our top 10 selection of the best tube amps under $500 to fit the beginner and intermediate guitarists needs and budgets, and all drawn from the market demands and user feedbacks over the years the ripple plate to a current production tube or a lesser nos type tube. It is a 9 pin noval tube with two heaters that can be operated in parallel at 6. Enjoy our 45-day return policy. Get the guaranteed lowest prices 12AX7 Tubes at Musician’s Friend. Some later big amps, such as the model 2001 Bass (375 watts) and model 2000 Lead (250 watts) use either eight or six 6550 or KT88 types. Your best bet is to take the amp to a guitar tech or amp repair shop that has a tube tester. Get a low price and free shipping on thousands of  I've heard good things about the Telefunken tubes (their 12AX7 is supposed to be especially good), but no one sells them around here. This Slovakian tube is tight with a lot of articulation in the low mids and good . Keeping the Volume control below 9:00 lets you work in that edge-of-breakup zone that sounds great for blues and jazz, Mar 10, 2013 · The EH is better for low microphonics though IMO. SOME GENERAL INFO ABOUT THE 12AX7 TUBE:From Wikipedia, the free encyclopedia Jump to navigationJump to search Question book-new,svg This article relies largely or entirely on a single source, Relevant discussion may be found on the talk page, Please help improve this article by introducing citations to additional sources, (February 2019) 12AX7 Dec 31, 2007 · Preamp tubes will affect the overall EQ response a bit more, so getting good preamp tubes will affect your gain (as well as add to the variability of your eq knobs: mids, highs, lows, etc). Any make of 12AX7 (also known as ECC83 or 7025) can be used as a gain structure that is best achieved by utilizing the 100-percent gain of the 12AX7. Psvan 12at7-T Mark II – the best new production tube from Psvane. The midrange especially is fabulous. 3/1. If the amp has tremolo or vibrato, it will have at least one extra tube, usually a 12AX7. This is a bare PCB of a low noise , tube based tone control stereo amplifier by means of two low noise triode tubes 12AX7. bates Randy Bass Lord of Orange Posts: 10149 not really . What is a preamp used for? A preamplifier, also known as a preamp, is an amplifier which is used to take a weak electrical signal and convert it into a strong enough signal to be further Since TubeDepot is in Memphis, TN, the home and main hub for FedEx and USPS, we get very good rates, so rest assured your heavy item will be shipped at the most affordable rates. response). SWR Grand Prix Tube Bass Preamp*NR*USA Made*Genuine SWR 12AX7 Tube Tone GENERAL DESCRIPTION This is a NO RESERVE AUCTION for an SWR Grand Prix Professional Tube Bass preamp. I have not gotten to my JJ ECC83S yet or the Mullard 12ax7. It is small and portable, which makes it easy to transport or store. And most use 12AX7 (aka ECC83) preamp tubes. TungSol 12AX7 is our go-to   Are you looking for the very best tubes for your vacuum tube amplifier? This is the (View our complete selection of 12AX7 vacuum tubes). I'm sure NOS tubes are great, but I can't justify paying $50-$150 per preamp tube. It is the best low-watt tube amp for those who intend to use a headset with it or those who are looking for an amp with an attenuator. Still, if I  12AX7 (also known as ECC83) is a vacuum tube that is a miniature dual triode - 6AV6 with high The 12AX7 is a high-gain (typical amplification factor 100), low- plate-current triode best suited for low-level audio voltage amplification. The ECC83 MG is a “Mid Gain” 12AX7 type tube. The purpose of this comparison is simply to provide guitar players with a frame of reference to help in finding the best current production 12AX7 for their needs. The JJ 12AT7 is a solid replacement for any 12AT7, ECC81, or 6201 tube. 25 Nov 2013 Orange valve amps have at least one 12AX7/Ecc83 contributing between If your amp is guilty of any of these noises you can say with a good  15 Apr 2012 Tube-based electric guitar amplifiers are also preferred to solid state or digital ones by Blues - Classic rock: JJ 12AX7, TTE 83CC, Mesa Boogie 12AX7 RCA 12AX7A: hi gain, american fat sound, good for crunch basically good for every genere, Electro Harmonix KT88 are suggested for Bass amps,  15% kauften TAD JJ ECC83S/12AX7 Tube, 9,90 € Durch herumspielen an Bass, Treble und Contour (so eine Art Mittenbooster/-filter) kann man die . This tube offers low noise, low microphonics, and warm smooth tones at a great price. The preamp is sometimes referred to as the“green face” model. The only downside to the tube is inherent to the long plate design. 99 NOS in original boxes, screened for low noise/low microphonics in our Vacuum Tube Vally tube characterizer. And while it's true they have gain curves that are 70% of a 12AX7/12AT7, that difference occurs mostly at THE TOP OF THE CURVE! Most of the curve for the two kinds of tube (12AX7 v. 12 user reviews on Tung Sol 12AX7. 1 Low Noise Matched Pair) ECC83=12AX7 Telefunken <> bottom smooth plates NOS 1960's in white boxes 1 tube) Gm=1680/1720 (1. Today, a look at almost any guitar tube amp, be it Fender, Marshall, Vox, or any other, will prove the 12AX7 / ECC83 / 7025 tubes are here to stay. I'm looking to spend more like $10-$20 per tube. It simply lacks that extra sense of power and articulation you’ll get with the Tung-Sol 7581-A. Only thing to be careful of, is that the TungSol and EH don't work nicely in Cathode Follower positions. Using these value in the above formula, the calculated gain is 51. Now lil amps are being mic, d more n more to get them unique tones of yesteryear. Brands include Raytheon, Tung Sol, among others. It even changed a cheap, huge Behringer tube pedal into a great drive pedal for guitar,bass,vocals,synths. A 70's Fender twin reverb fitted with original Fender blue back The best new tube that I've personally tried, for extension, bass response, and good gain is the Gold Lion B759/ECC83. Sounds good though for when the amp is too strident. B. TJ Full Music 12AX7 Gold Pin Box Plate Tube (pair) - MSRP US$110. The stage – McIntosh 275 IV – all 3 12ax7 tubes were replaced with the contenders. BUGERA BUGERA BC15 Great tone is delivered with this amp being a combination of Master volume, a two band equalizer, and a 12AX7 valve when it’s in its preamp stage. Many OEMs use relabeled Electro-Harmonix vacuum tubes in their amplifiers. Sep 26, 2013 · Best 12ax7 tube for Micro terror? Its easy to tell if it is a real 12ax7 tube. worth every cent to me . Each selection below will lead you to the brands and models you love for all of your equipment. is the pre you have a low voltage tube type unit?? or is it a 'hot tube' thing? but if the signal passes thru it IMHO you want to go for the sound of the tube. The K-12 is a very polite and sweet amp with all the warmth of it's "hot bottle" heritage. Bass Tube Preamp Nitewalker Bass Guitar Tube Preamp! Newbasstone, Inc’s. It has a 12AX7 preamp tube and EL84 power tube with an 8” speaker to produce a clean and warm tone. Using a 12AT7 in place of a 12AX7 in V1 can make the amplifier quieter and give it more extended clean headroom before breakup. The problem with having an itch for a EF86 is that, in most cases, a EF86 based amplifier is well over $1000. All are military stock, most grey plates and some are triple mica. Buy from a reputable dealer, e. GE 12AX7/7025, less definition, more warmth. Qualified orders over $99 will ship to you without incurring a shipping fee. 5 Mar 2009 We might as well know this. Mar 05, 2009 · Fender just bought Groove Tubes (which are just the good Chinese tubes, anyway), and Ruby tubes are mostly better Chinese tubes. They are cool tubes, and they have a different personality than the more common 12AX7 preamp stage. 9 Oct 2019 Test - review of 12AX7/ECC83/ECC803 vacuum tubes. the face itself isn’t green. If you need an amp for practice only, you won’t need more than 5 Watts of max output. Free shipping is limited to the contiguous 48 states. 50 shipping Save tube preamp bass guitar to get e-mail alerts Sovtek 12AX7 LPS The “long plate spiral” has been around for years and it’s often overlooked. The box is designed to show you the tubes, and there are old school plastic Bass, Middle, Treble and Volume knobs on the front. But if you’re really into getting the best audio you can get, these tubes have no equal. Using a tube with a lower gain value in V1 can have a big effect on how the power amp reacts to the signal. First tube the 12AY7 preamp or the 12AX7 or 5751 voltage amp, Second and third tubes are 12AX7 drivers. JJ 12AX7 / ECC83 Preamp Vacuum Tubes (Three Pack) View Product: Our Promise to Readers. g. Whether you are replacing the tubes in your guitar/bass amp; updating your home audio system: re-tubing your microphone or changing out the organ tubes, we have what you need right here. We have a full selection of replacement tubes in stock & many are eligible for free shipping. Aug 12, 2011 · 12AX7 Black Plate Review, USA tubes as good as Mullard & Telefunken "The earlier a signal is in the audio chain, the more important it's amplification is. The Tung-Sol name and trademark have been acquired by the New Sensor Corporation. It is a quality tube in a preamp or for use as a phase inverter. Some units just favour one tube over the next. As mentioned before, the traditional guitar sound produces mainly softer to mid-ranged sounds. Mar 13, 2017 · I feel my Bugera V5 has too much midrange and can get boomy depending on settings. These are generally much smaller than power amp tubes and serve the main function of shaping the overall character and tonal characteristics of your guitar sound. Nov 15, 2017 · Roundup! 11 Micro Tube Amps Tube amps of five watts or less have been at the heart of some of the most inspired recordings by rock’s legendary guitarists—many of whom used stacks onstage, but favored small “practice” combos from Fender, Supro, Selmer, Valco, Vox, and others for tracking mammoth tones to tape. preamp circuit as shown in the schematic below with bass and treble set to their maximum. sound great and are quiet and consistent 4 cents worth Jan 08, 2020 · The "California (Tone Research) SET-5" guitar amp is a low priced 5W, A class, genuine all tube guitar amp. 5751) is identical over the tubes' operational ranges. C $152. Unique box plate design, gold pin, absolute high end 12AX7 tube you can find on the market, compete head-to-head with Telefunken ECC83 and Mullard CV4004. 5 preamp Conrad Johnson Premier 15 phono preamp Jadis Aesthetix Diva Audio M7 preamp These Philip Electrohome I65-type tubes are some of the best sounding 12AX7’s ever made. 5-watt tube amplifier JJ Preamp Vacuum Tube, 12AX7 ECC83 JavaScript seems to be disabled in your browser. Tubeshop had them for 35 last week. Introduction - 12AX7 Tube Preamp Kit. 1/1. All of the other tubes here are of the 3 mica spacer design with short wide plates. Predictably, the 12AX7 sounds smoother, richer, with more bass emphasis compared to its EH cousins. Feedback received via email: “Hi Rachel, I received the 12AX7LS super tubes and their performance is super! Put the new tubes in and turn on, first 10 mins, comparing to Psvane 12AX7-TII…the new super tube has lower noise floor, sound is more dense and transparent, bass is deeper and better bass layering. It utilizes a medium length ribbed plate design that is much like the old Amperex and Brimar European designs. Right now I have about 15 hours on to the tube. Also very good bass and typical Raytheon clean clear mids. It's not packed with features and extras but then it doesn't need to be. This tube need NOT be quiet–any inexpensive 12AX7 type (with adequate gain to oscillate) will work. If you want great sounding tubes at a very reasonable price, then Electro-Harmonix tubes should be on your l | 12AX7EH Checking out the best sellers and top-rated tubes for instrument amps is another great way to see what's available. Tung-Sol 12AX7 One of the best 12AX7 preamp valves for guitar amps Beefy, clean & quiet Accentuates highs and lows Clean mid and treble Plenty of headroom Gain & drive of a Chinese 12AX7 Pure tone of a Mullard or Brimar 12AX7 Lush overtones, which standout when driven Jan 03, 2020 · Tube amps are best known for the traditional guitar sound. And congratulations to Alex for designing such a good pre-amp which is probably the best value for money ever. We have found that the Mullard and Gold Lion Russian re-issues are not as dependable in PrimaLuna preamps, so it’s best to stay stock when it comes to current production 5AR4’s. Jul 28, 2010 Some people I've spoken with have said to use the Groove Tube 12ax7-R, but now there is an Get the guaranteed best price on Preamp Tubes like the Mullard 12AX7 Preamp Tube at Musician's Friend. deeper bass, fuller etc. These are quiet, factory screened tubes, similar to the Amperex 6201 classics. Hi, It is time for me to change tubes in my CJ PV-12 with phono stage, one of the 12AX7 almost gone. The tubes in tube amps clip in a much nicer manner than that of the solid state amps and provide a crisp, clear sound quality with little to no distortion. RCA and Sylvania first introduced the 12AX7 to the world in the late 1940’s. The Holland made Philips / Amperex 12AX7 is an amazing sounding Holland made 12ax7 tube! Warm, punchy with excellent bass, and great upper mids! the dimple getter Holland 12AX7 are Just $249. The Tungsol has a creamy smooth midrange with a weighty and slightly rounded This tube is a bit different from the others on the list in terms of physical design. When Wang and Biyang came together, in China, they didn’t envision such a success story. The tube amps, which are used for guitars, can go into overdrive as well to make a more distorted sound. They are just unfortunately UGLY! Wonderful in musical instrument amps, and a very quiet tube for your tube hi-fi. Genalex Gold Lion ECC83/B759 (12AX7) dual triode preamp tube with gold pins. Mar 23, 2015 · A real overdrive box is either the 2-tone and x-treme tone from BADCAT, high plate voltages and a real clipping due to tube overdrive (two 12ax7 cooking inside), most of the modern pedals includes some OP amps to get more gain with one 12ax7, this is not the case for the badcat pedal. They created an affordable tube head amp that runs on a 12BH7, with a pair of 12AX7 tubes and a 6Z4 rectifier. This tube was definitely better than the GE 5751, although not by much. The JJ ECC803S is a large plate version and has a richer mid and bass tone The 5751 is a special version with 70% of the gain of a normal 12AX7. This tube sounded quite musical and considerably more open in the DeJong amplifier than in the AudioNote, where a loss of dynamics was noted, and voices were contaminated by a hard, edgy ring. Mar 10, 2013 · I have been swapping tubes all weekend long in my 6505+ and tweaker 40 the tung-sol 12ax7 is a great tube for high gain EH12ax7 is a nice middle of the road balanced tube. Get a low price and free shipping on thousands of items. 12AX7 . These tube bass amplifier heads come to you from renowned bass amp companies like Ampeg, Markbass, Orange Amplifiers, Fender and many others. Jun 22, 2012 · Valvo 12ax7 tilted getter D60 code---made in Hamberg, sweet, extended, rich midrange, one of the best Siemens long plate 12ax7---rich but extended at both ends, getting rare Tung Sol 12ax7 square getter--vivid, airy and extended, not the richest midrange Also you might want to try a 5751 in your CDP. Curious about what preamp tube is right for you? With all of the different tubes on the market and all of the info on the forums that is passed around sometimes it is hard to get straightforward answers that are unbiased and if you are like. Watford Valves - Test Reviews ECC83,12AX7 Test Reports 1998-2002 INTRODUCTION: OBJECT OF THE TEST To establish the best sounding ECC83/12AX7 of both New Old Stock and current production variety. This is the ultimate preamp tube to use in all critical gain stage positions. EQUIPMENT USED The amplifiers used were: 70 's Fender twin reverb fitted with J. I am hoping as the tube breaks in that it will be as good as the Siemens 12AX7. This tube, on the other hand, has an internal construction similar to a traditional 12AX7 -tall ribbed grey plates with no 3rd mica spacer. This tube stays clean for a long time and then breaks up very quickly so it’s hard to get to that sweet spot where you can play clean by picking lightly and get distortion by digging in. Probably the best value in a 12AT7 type, and an overall better tube than the standard 12AT7. -----NOS RCA 12ax7: I can't stress this highly enough. Reissue Tung Sol 12AX7 is good too, lots of output with that one. Svetlana Russian 12AX7 Preamp Tube This Russian-made 12AX7 preamp tube is brought to you by New Sensor, the company responsible for Sovtek. The 12AX7 cathode follower, the tone stack, the long-tailed-pair phase splitter, the push-pull power amplifier, and the power supply. Wonderful cleans, very quiet and the big plates make the tube immense fun to play. Like all JJ tubes, it has a rugged construction that doesn’t compromise the sound of your amp. May 12, 2011 · Following from my review of Tungsol's 6SN7, a quick audition of its 12AX7 brother suggests that New Sensor is going for a particular house sound with Tungsol re-issues. Riverstone Audio - Vacuum Tube Pin Straightener For 9-Pin B9A-base (12AX7 / EL84 / 5670) and 7-Pin B7G-base (5654 / 6AU6 / 6AQ5A) Tubes - Hardened Stainless - Hand Held - Straightens Vacuum Tube Pins #1. 16 Feb 2015 Not all 12AX7 preamp tubes are created equal. The only place to shop for preamp tubes based on their sonic attributes. best 12ax7 tube for bass