Best 5751 preamp tube. Matched Pair (2 tubes) Gain and transconductance are matched within 10%. However, with 30% reduced gain, the 5751 is a fantastic way to tame a distortion stage and tone shape an amp. 5751 = a 12AX7 with a bit less gain and big plus on tone! HiFi Tube Amp Kits; Elekit TU-8150 Stereo Tube Amplifier Kit; Elekit TU-8185 Stereo Tube Amplifier Kit; Elekit TU-8200 Optional DAC Module PS-3249; Elekit TU-8200DX Stereo Tube Amplifier Kit; Elekit TU-8200R Stereo Tube Amplifier Kit; Elekit TU-8500 Stereo Tube Preamplifier Kit; Elekit TU-8550 Stereo Tube Preamplifier Kit Nov 28, 2020 · More like 68-72mA, which is still closer to 60%, which is technically cooler, yet warmer than factory. Click here for more information. This tube has plates that are 25% to 30% larger than the Electro-Harmonix and have unequaled build quality. Tung-Sol 5751 5751WA 7025 - D Getter - Vintage 1950s - Matched & Balanced Pair, Testing NOS Preamp Tubes. Anybody have experience with 5751 preamp tubes? They put out 30% less gain than a 12AX7, good for lowering the gain in an amp with a gain channel thats too hot. Price: $68. Still you can spend a lot and get a NOS tube, your choice. $17. If you have gain to spare using a 5751 tube will greatly improve your overall tone without making your preamp excessively clean. SRV used a 5751 to improve his clean tone with vintage Fender amps producing that thick and three-dimensional bold tone. This low noise tube is especially recommended for clean tones with big bottom, warm mid-range and silky top end. Tung-Sol tubes reflect the best in vintage Tung-Sol construction with unsurpassed tone and reliability. Feb 28, 2012 · Class AB amps have an amplifier or power tube for the positive and the negative part of the signal. It is roughly 25% lower in gain than a traditional 12AX7, Stevie used these in V1 to get a cleaner tone from the preamp section to get more power tube distortion at higher v read more. The JJ 5751 tube is often used in place of a 12AX7. The 12AT7 also has a gain factor of 70, but since the plate resistance is different, the 5751 is closer to the 12AX7. the jj 5751 was designed as a ruggedised high mu, dual triode tube with similar specifications to the 12ax7. These JJ 5751 utilize a "short plate" design and have The JJ 5751 is a lower gain pre-amp valve that that can be used as a drop in replacement for an ECC83 (12AX7). I'm not 100% sure it's necessary, but the guy who recommends it is very knowledgeable so it probably wouldn't be a bad idea to match them. May 20, 2016 · 1955 Fender Tweed Bassman 5E6. 2mA with a 12AT7 in it and about 1. The HIGHGRADE Selection is the tip-of-the-top quality with lowest noise (microphony, hum, hiss) level. They have nearly 12AX7 gain, extremely low noise, and frequency response that covers any audio application. IMO, it does make a difference, as does better preamp tubes. Today's new production Tung-Sol tubes are constructed with the same commitment to quality and reliability. The TAD Selected 5751 is an excellent choice for improved clarity, smoothness, and a true vintage tone character for most guitar amps! Tung-Sol 5751. Nice and warm with a smooth breakup characteristic when pushed. Testing. Product information "5751 Highgrade TAD Premium Selected". 1960s Meatball Logo RCA 5751 12AX7A ECC83 Preamp Tube Black Gloss Plate TEST VSTG++/BAL. $44. Shop our great selection of 12AX7, 12AX7A, 12AX7EA, 7025, ECC83, ECC803S, 5751 (low gain), CV492, 7058, 12DF7, CV4004, B339, E83CC, M8137vacuum tubes now. com♫ Listen to my Podcast - https://anchor. TAD 5751selected preamp tube (RT009)5751 = a 12AX7 with a bit less gain and big plus on tone! Low-noise Tube for Best Clean Tone! The TAD Selected 5751 is our first choice for noticeably improved clarity, smoothness, and a true vintage tone character for most guitar amps! In hi-fi preamps and CD players, the TAD selected 5751 will lower the noise floor and sound smoother and clearer than many 12AX7 tubes. $135. Tesla short plates rock. 55. Remember Part Number: RT-12AX7. V2 is populated with Amperex Bugle Boy. It is one of the best sought after European valves made. Cathode has a 1K resistor on it and draws about 1. GE JAN spec 5751 Preamp TubeAll well within NOS specs !Test results are scotch taped to each tube Smooth out that raspy preamp ! and let your power tubes sing !!!Really it works !Stevie Ray vaughans secret weapon tube (google for the story) More great gear here, click on our store name above JAN-GE 6072A Black-plate - General Electric is known for producing many of the best tubes ever made in the USA. Apr 10, 2012 · I have tried the RCA 2 mica and 3 mica black plates,,The Sylvania 3 mica grey and black 3 mica's and the Ge 5751 3 mica black plates It depends on what your needs require,but I like the Ge 5751 3 mica black plates the best. Also available in singles and quads! Tested on: Maxi-Matcher 2 and/or Hickok 600A. $52. Tube Type: 5751. 5751 Tubes have 30% less gain than regular 12AX7s, so they are also very useful to make the gain pot travel more usable on amps that have too much gain. For example, many tout the superiority of the 5751 in my EAR phone pre. $43. Sep 5, 2021 · 12AX7 Tube Gems - Tubes for Amps. I sold one to "The Hoff" on here that was the best sounding of the bunch. We also think that it is pretty good value for your money when it comes to these types of tubes. Also a GE triple-mica 5 star. Purchase JJ 5751 vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to Mar 29, 2023 · While choosing the 5751 tube vs. GE 5 Star 5751WA Gray Plate Triple Mica Pair NOS ECC83 5751 12AX7. A common substitution is to replace a 12AX7 with a 5751 or a 12AY7 to tame a preamp that tends to overdrive This 5751 tube gives you way more gain than a 12AX7 and will have a nice crunchy, clear, yet creamy distortion. For example, the common 12AX7 tube has a gain factor of 100, while a 5751 tube (which is often used in place of a 12AX7) has a gain factor of 70. Stevie Ray Vaughan was known to use 5751 preamp tubes to coax a firmer crunch from his vintage Fender amps. Manufacturer: Westinghouse Product Details. they and are often used to quiet down guitar amps Jun 11, 2008 · The LPS stands for long plate spiral, and in this case makes for a bulletproof, quiet tube. It has a very complex harmonic content and very pleasant mids. Good to rope the gain of a high gain amplifier. Feb 5, 2014 · Along with a different type of dirt, your speakers will also react and push more air. Product No. Mar 4, 2016 · The amp uses a 12AY7 and the JJ is just about as good as it gets IMHO. They sound good in everything I've tried them in but particularly shine in single ended, simple amp circuits. The power tubes are Electro Harmonix EL84s, and the preamp tubes are 2 Tung-Sol 12ax7s and a Chinese 12ax7. It follows the usual compact JJ plate design and is well balanced and harmonically rich. 6. The choice is yours, and you can always mix and match tubes to achieve the most appropriate setup. Price$22. by mark. bandcamp. Mar 15, 2015 · Preamp tubes are plug and play, and any of the tubes you mentioned, and a 5751, are all interchangeable, and each have different gain factors. Drop-in replacement for all 12AX7, ECC83 and 7025 tubes. Known by Hi-Fi audiophiles as "Holy Grail Tubes". Worked great, sounds great! My question is, would a 12AY7 be a good next tube to try? If so, which is the best NOS bang for the buck? I believe the 5751 is lower gain than the 12AX7 and the 12AY7 is lower gain than the 5751, but to what degree? Jan 21, 2019 · ♫ Become a Patron - https://patreon. Aug 5, 2020 · We will treat 5751 and 12ax7 in the same category – they are different tubes, but often used interchangeably. JJ 5751 with fully Balanced Triodes. Jan 10, 2007 · I've tried all the tube swaps and have settled for now on this: EH 5751 in preamp tube 1 JJ 12AX7 in Preamp tube 2 matched pair of JJ EL84s for power. 99, now $44. by Max » Tue Dec 06, 2011 5:50 am. . They generally have 70% of the gain of a 12AX7. On Sale. TAD 5751. Various 5751 JAN Matched Pair $120. Specs/Data Sheet. It has a very low noise floor and no tendency toward microphonics. These are the tubes fitted and (most) labelled (gold or silver) by Alexander Dumble that I remember to have seen in original Dumble amplifiers: Preamp: Mullard ECC83, GE 12AX7, GE 12T7, GE 12AU7, EI 7025 (80ies Telefunken clone), Amperex ECC83, Mullard EF86 (last version), GE12BH7 Used – Good. Brand New with Full Manufacturer's Warranty! Brand New. Here is a link to a tube place in Florida I have used. Reply. The 5751 is an affordable alternative to the 12AY7 used in original Fender tweed amps and can be subbed for a 12AT7 like a reverb driver tube. From our review: This tube has the classic 12AY7 tone. Especially this low-noise tube is recommended for best clean tone with big bottom, warm midrange and silky top end. Third tube is a 12AX7. 6072A may also be used. Product information "5751 TAD Premium Selected". or a new 12at7. Many amps need to be re-biased when their output tubes are replaced; a job for a pro, unless you have the skills to do so safely Feb 12, 2020. Price Drop. Super detailed and without annoying frequency spikes. Old Stock 12ax7. or an used 12ax7. Tung-Sol 5751 Tube The 5751 was designed as a "ruggedized" high mu, dual triode tube with similar specifications as a 12AX7. Best 5751 Tube #1. #7. Thus unknown tube is better than $150 Mullard 12AX7 long plate. This tube offers low noise and low microphonics. These JAN-Philips 5751 tubes are one of the best dual triode tubes I've ever heard. If you do use channel one, this tube is the most critical to tone for that channel. Compare. Tung-Sol 5751 Audiophile Preamp Tube. I long ago installed a Celestion Vintage 10 and it sounds good, but the best sound is to use the Pro Jr as a head and run it into an open back 12" speaker. In hi-fi preamps and CD players, the TAD selected 5751 will lower the noise floor and sound smoother and clearer than many 12AX7 tubes. : psvECC83-b Sep 21, 2016 · From the PV7 and the Premier 7 on, all conrad-johnson brand preamplifiers (both tube and solid-state) have been phase inverting in the line-stage. It has between 20-30% less gain than the standard JJ ECC83s. That explain why you usually have 2 power tubes. Expect to pay $20 ea. Don't know the roles of all the preamp tubes, but it's been said that the two driver tubes for the power amp should be matched for best results. 6) Mullard 12ax7 Short Plates (4. This 5751 is a drop-in replacement for any 12AX7. Of course they're a top choice for phono preamps and hi-fi equipment (or basically anything using 12AX7 tubes). Black and grey plate are reported to sound the same. Anyway here’s a quote from the link above: Elekit TU-8500 Stereo Tube Preamplifier Kit; Elekit TU-8550 Stereo Tube Preamplifier Kit; Elekit TU-8600S 300B Tube Amplifier Kit - Lundahl Version; Elekit TU-8850SE Stereo Tube Amplifier Kit; Elekit TU-8900 300B/2A3 Tube Amplifier Kit; Elekit TU-H82 Hybrid Tube Amp Kit; Model 16LM Mono Integrated Tube Amplifier; Model 8LM Mono Integrated Tube Jul 13, 2023 · From the 6L6GC to the EL34 to the 6V6GT and EL84 – these four varieties of power tubes have different characteristics, and it pays to know them. The TAD 5751 High Grade is the first choice for vastly improving the clarity, smoothness, and vintage tone character of most guitar amps. I'm wondering about the different brands, like JJ tubes I find are typically darker and Tungsol are typically brighter, I want to know if this is the case with 5751 tubes, are Price Drop. RCA 12AT7 is about as good as it gets. so the best alternatives are: a new 12ax7 biased a bit cooler. These windmill getter way outperform the Raytheon 12AX7 black plate by a mile! Here is a JAN 5751 NOS pre amp tube by Philips. JJ 5751 Preamp Vacuum Tube #3. You can learn more about this on our tone tweak info page. When all the elements; preamp, power amp and speakers are working together, that’s when the magic of tube amps comes out. Chinese Bs (also known as the Military 6N4) are really good, in all positions. It is the best preamp for audiophiles, and this is largely down to the push-pull technology that it has. GE triple-mica blackplate. Mar 11, 2016 · The JJ 5751 is an excellent 5751 vacuum tube and does exactly what you want from a tube with this designation. About $40 a pair in NOS. Rod ~ World Tube Company Mullard The Mullard 12AX7 / ECC83 is a Very Smooth Sounding tube. Matsushita and Mullard are tubes to try too. 50. This 6072A tube continues the tradition. We carry all of the major brands in NOS, vintage and New Production vacuum tubes. They only have 70% of the gain of a 12AX7, and are often used to quiet down guitar amps that have too much gain. In hi-fi preamps and CD players, the TAD 5751 HIGHGRADE Jan 1, 2024 · Yaquina 6CA7T tubes. Matched Pair (2x) Genalex Gold Lion 12AX7 tube (ECC83) Buy On Amazon. " While it is true that a PARTICULAR BRAND/VINTAGE variant can be better IN YOUR EQUIPMENT, there are a lot of poorly made and mediocre sounding variants of many types of tubes. Strongly committed to quality manufacturing, Tung-Sol tubes have always been known for their reliability and great tone. Some say it's fizzy, this immediately goes away with higher volumes/SPLs, but if it bugs ya, it can be remedied with a decent tube-set or a 5751 (Jan-GE/Philips) in V2 or V3 Apr 11, 2016 · Those are some of the most popular preamp tubes which mean you have a wide variety to select from. To lower the gain of a preamp stage a little, you can swap a 5751 into any socket that carries a 12AX7. 8) RCA 12ax7 Carbon Black Plates (4. Re: Best 5751 Tube? The best old one ive tried is the Jan 5751. are simply the best. These tubes are some of the best sounding tubes you can get. The 5751 will lower the gain by about 30% I think it is compared to a 12ax7. PRICE PER The Electro-Harmonix 12AY7EH/6072A is another tube that is useful in lowering the gain of an amplifier. Winners. The best preamp tube for all the key gain stages is undoubtedly the Bugera 12Ax7A. 25. This is a big part of that woolly tweed tone that many folks love. Other than that, it doesn't matter. 2. Analog VU meter. but not Telefunken. In this application, you will get good gain with a warmer sound than the 12AT7. Just be sure to power off the amp before swapping tubes. Product information “5751 TAD highgrade Premium Selected”. a 5751 is pretty similar to a 12AX7, albeit with slightly less amplification factor. GE must have the dual 12AX7/7025 label. $33. All tubes have been pre-tested and matched (at no additional cost) on industry-standard testers. 1. The smooth plate is one hell of a tube. fm/the-gear-podcast♫ Swe TungSol 5751 Matched Pair Out of stock. Whereas a 12AT7 is a different beast altogether. Typically, a short plate Mullard or Amperex are great. 5751 = a 12AX7 with a bit less gain and big plus on tone! Low-noise Tube for Best Clean Tone! The TAD Selected 5751 is our first choice for noticeably improved clarity, smoothness, and a true vintage tone character for most guitar amps! There will still be plenty of gain - so if you own a high USD $19. 32mA biasing per tube in the EL34/KT77 family. Photo by Andy Ellis. Barnegat, NJ, United States. Some people change the Chinese one for a Tung-Sol. I think I paid $79, yours for $40, plus $5 shipping. This is a similar tube to the JJ 12AX7 which is the standard for new The Tung Sol 5751 preamp tube is a dual triode tube and a optional replacement for a 12AX7. It has a lower gain than the standard 12AX7. NOS GE is about $40 each. Here is a good demonstration about the different gain factors: Elekit TU-8500 Stereo Tube Preamplifier Kit; Elekit TU-8550 Stereo Tube Preamplifier Kit; Elekit TU-8600S 300B Tube Amplifier Kit - Lundahl Version; Elekit TU-8850SE Stereo Tube Amplifier Kit; Elekit TU-8900 300B/2A3 Tube Amplifier Kit; Elekit TU-H82 Hybrid Tube Amp Kit; Model 16LM Mono Integrated Tube Amplifier; Model 8LM Mono Integrated Tube Sylvania 5751 – Quest for a gem. This means that if you plug a 5751 into a socket that expects a 12AX7, the pre-amp will have about 30% less gain. $70. E. GE 12AX7/7025 short plate. I got lucky - a friend had some spares. Buy On Amazon. They totally look cool with all these Jul 23, 2021 · Two tubes that sound great. WWW. Sep 2, 2011 · "absolute best". GE 5 Star 5751 Gray Plate Triple Mica Well Balanced (2. 5751 tube is often found in high linearity low distortion headphone amps. The NOS tubes are becoming a little rare to find. A low-noise, low-microphony 5751, 12AX7, 7025 is also usable, though they will have more voltage gain and will change the sound of the amp considerably. It still has plenty of gain so if you have a high-gain preamp that does not have that classic crunch characteristic, the 5751 tube will work wonders. the new TAD 12AX7 / ECC83 REDBASE ® - Premium Selected - Good Gain - Airy Top End - Fat Mid-range!! The TAD 12AX7 / ECC83 REDBASE ® Premium Selected provides very good gain, tight bass, fat mids and silky top end with overall definition From €29. Visit Darren Riley's on the web for thousands of cool & hard to find Dec 7, 2009 · 13,450. The 5751 and 6550 tubes from G. However, everybody is trying to purchase the JHS version with black plates or GB version with gray plates. One power tube is fed with a signal that is identical (in-phase) to the original signal, and the other power tube is fed with a mirror-image (phase-inverted) of the original signal. All are black plates. on the open market for 5751's. These are all pin compatible with one another, the only differences being the gain factor of each tube. Performs great for hi-fi too! Replaces any 12AX7A/WA, ECC83, 7025 etc. Lots of choices for V1 of a Marshall. Sylvania 5751 Gold Brand Gray Plates Triple Mica (4. Yes really. Used – Excellent. Aug 19, 2022 · I was hoping to increase clean headroom/reduce early breakup some, so I swapped in a JAN GE 5751. Used – Very Good. $40. Jan 8, 2015 · Manual says you can use 12AX7 in place of V1. Push-pull power amp. They sound at home in any amp that needs detail and a wider soundstage. A lower gain factor might lead to the loss of some notes, but it will reduce microphonics and distortion. Posted on May 18, 2012 by tubemaze. Output tube replacement requires more thought than preamp tubes. The 12Ax7A preamp tube gives the highest gain and better tonal quality. Early 50s Sylvania or RCA with the D getters are cool. Sandra @ thetubestore / December 4, 2022. Seller stated Telefunken 803s are not as good at $1K+ each. Best new production tubes for this socket are Svetlana (sound most A new take on the classic 12AX7 preamp tube. 6) Raytheon 5751 Black Plates Triple Mica (4. I bought this from The Tube Store a few years ago, tried it in V1 of my Fender, and it does what people buy it for - 70% of a 12AX7's gain. Mar 12, 2024 · Both the 12Ax7A and 12Ax7 tube amps have eight pins, so the differences are quite noticeable. 19% price drop. A 12at7 is about 50% lower gain according to the chaps at watford valves. 99 (19% price drop) $54. UK. The Westinghouse 5751's are some of the best made USA tubes with tone for days! These tubes test NOS. May 10, 2016 · May 10, 2016. $101. Pick the highest quality 12AX7A or 7025 (7025s are nearly impossible to find). A tube I thought is better than the 3rd place Mullard 12AX7 round plate are the Raytheon 5751 windmill getter. Pair of JJ 5751 Preamp Tube. $54. 6 mA with a 5751, so it doesn't appear anything dangerous to the tubes is occurring in the swap. (Up until perhaps Sovtek marketed its own 5751) They are generally known to be a rugged Tube, very low microphonics, and the holy grail, and best sounding of all, is the Sylvania 5751 Triple Mica Jul 30, 2008 · The tubes your AC15 came with are really quite good. 99. 16 (1 new offer) Mar 24, 2020 · How to: Often with a tube amp you might wish that the actual amplifier had less gain. NP201-1. 5) RCA 5751 Black Plates Triple Mica (4. TK. Probably the best sounding 5751 tube ever made. While it uses the same rugged build and thick glass as other JJ preamp tubes, this tube differs in construction from the typical 12AX7 in that it features a medium-long plate, which provides a dynamic and open sound with a rich forward sounding mid range. com/LeonTodd♫ My music - https://ragdollrock. Sep 24, 2014 · Joined: Mon Sep 01, 2014 10:39 am. Originally $54. BACKLINE. Jan 10, 2010 · Re: Dumble tube choices. Kagliostro. Maybe Phillips cut Ei loose when demand for tubes began to drop. As quite a few of you know, Sylvania 5751 JHS or GB with 3 micas is considered to be “the holy grail” of audio tubes. But in these days of incredibly high gain levels on tube am Mar 8, 2017 · 1. 5) This is our standard 5751. RCA 5751 are good, the better have 3 mica. Psvane. The Mullard 12AX7 long plate square getter is the best I ever heard. I have the exact same preamp and just found the 5751's I needed. Dec 18, 2006 · Dec 19, 2006. Buy from the experts and avoid hassle! Brand New In Box JJ Tesla 5751 Gain Tested Vacuum Tube Low-Gain 12AX7 The JJ 5751 can be used in most 12AX7 circuits to achieve more headroom. However, with 30% reduced gain, the 5751 is a fantastic way to tame a distortion stage. Highly recommended: GE 12AX7, RCA 12AX7A, ANOS RCA 12AX7A , Brimar CV492 or , RFT 12AX7. Non Biased General Guitar forum. Astoria, NY, United States. All conrad-johnson power amplifiers, tube and solid-state, are phase correct except the Premier 350. 12AY7 tubes were frequently used as the first preamp tube in most Tweed-Era Fender amplifiers. Typically only 1-5% out of the whole production yield make it to meet the HIGHGRADE requirements. . No need for a bass-heavy tube as the amp delivers low-end in spades. The gain factor of a tube simply measures how much it amplifies the input signal. Re: OR15 preamp tube swap. 33. First and second tubes are channel preamps, 12AY7 is specified. Therefore, you get a broad-spectrum, expressive tone with clean and controlled frequency response. r76 » Wed Sep 24, 2014 5:42 am. The 5751 was designed as a "ruggedized" high mu, dual triode tube with similar specifications as a 12AX7. Aug 3, 2018 · nowhere. 5. TAD part# RT009. Typically only 1-5% out of the whole production yield make it to meet the On the bottom of the description, there is a few Q&A for buyers who might meet the humming problem. In fact, Stevie Ray Vaughan used a 5751 in V1 (30% less gain than a 12AX7) to alter the characteristics of his amp and suit the tone he Dec 15, 2008 · Counter-intuitive though it might sound, armed with the above knowledge regarding preamp tube distortion, many players have learned to create a bigger tone by using lower gain preamp tubes. Please visit and share my guitar gear & DIY Blog. Sovtek 5751 Vacuum Tube #2. It doesn't have to be as drastic as a 12AT7 New Psvane Hifi 12AX7 / ECC83 Vacuum Tube. HiFi Tube Amp Kits; Elekit TU-8150 Stereo Tube Amplifier Kit; Elekit TU-8185 Stereo Tube Amplifier Kit; Elekit TU-8200 Optional DAC Module PS-3249; Elekit TU-8200DX Stereo Tube Amplifier Kit; Elekit TU-8200R Stereo Tube Amplifier Kit; Elekit TU-8500 Stereo Tube Preamplifier Kit; Elekit TU-8550 Stereo Tube Preamplifier Kit In hi-fi preamps and CD players, the TAD selected 5751 will lower the noise floor and sound smoother and clearer than many 12AX7 tubes. We stock NOS and current production 5751 tubes. For instance: "The best 12AX7 is a 5751, the best 12AT7 is "variant XYZ", etc. 75 Off. #2. They are ideal if you want to reduce (tame) the gain stage on your amp. New is the JJ. Nov 8, 2020 · Sovtek LPS in the PI slot, overall, my preferred tube. The next option on this roundup is an impressive preamp that comes with internal parts, unlike what is found in other products on this roundup. Did You Know? If you have any amp that is producing too much gain with 12AX7 preamp tubes, then you could swap these for a lower gain tube such as the 5751 which would help reduce the In hi-fi preamps and CD players, the TAD selected 5751 will lower the noise floor and sound smoother and clearer than many 12AX7 tubes. 25% Off. 00: FL Jan 15, 2024: 10 : FOR SALE: Pair GE 5 Star 5751 tubes FS Feb 18, 2024 · The jj 5751 preamp tube can be used in most 12ax7 circuits to achieve more headroom. It is Read More » Review – JJ E83CC / 12AX7 Tube. Which is kind of odd, in a tube nerd kind of way, because Ei was owned by Phillips who owned many brands like Mullard, Amperex, Siemens, Valvo, etc. 95. Add to Cart. The Tung Sol 5751 has a gain of about 70-80% of the standard 12AX7. Titusville, FL, United States. Location: Stratford upon Avon. Some people also spend ridiculous amounts of money on NOS tubes - but I think you should enjoy your amp the way it is for now. Others may sound better or cost more, but these guys have earned their keep in the Peavey classic line, for me But back to that first slot - I find that many amps benefit from a V1 with a little less gain. Jul 23, 2019 · With a gain factor of 70, a 5751 is a popular replacement for a 12AX7, as it reduces the gain of the first preamp stage by around 30 percent compared to a 12AX7, the typical V1 tube. Free Shipping. The 12AX7 family of dual-triode preamp tubes consists of the 12AX7, 5751, 12AT7, 12AY7, 12AV7 & 12AU7. The 12AT7 is at best a lousy sounding preamp tube, makes a much better driver tube for the power tubes as it can handle a lot of current, far more than a 12AX7. Details. Used – Mint. Special Note: The 5751 is not a true 12AX7, but is often used in place of a 12AX7. The 5751 has the same plate resistance as the 12AX7, but the gain factor is only 70 compared to 100 for the 12AX7. Items 1 to 40 of 162 total. Excellent condition, less than 3 hours Sep 5, 2007 · From what I understand, the 5751 was originally designed for Military, and all original 5751 Tubes were all made in America, never overseas. Reverb Bump. 12AX7 Family Tube Substitution. You might try Sovtek 12AX7LPS or NOS Sovtek 12AX7WA i only have try the last , good clean sound, In vintage i think i prefer 12AX7 RCA long black plates to almost everything, in this moment. In hifi preamps and CD players, the TAD Selected 5751 will lower noise floor and sound smoother and clearer in place of many 12AX7 tubes. Highly regarded 12AX7 / ecc83 tubes would be: - UK made Mullard and Brimar - Holland made Amperex, Bugle Boy, and Philips - German made Telefunken - USA made RCA, GE and Sylvania I've purchased many tubes and had good luck with BRENT JESSEE The JJ 12AY7 tube is also a great tube to tame high-gain preamps because it can be used instead of a 12AX7 tube without any modifications to the circuit. Excellent: Raytheon 12AX7. Dec 10, 2010 · 5751 - This is the "milspec" version of the 12AX7, but is also slightly different. 80 *. It has 44% of the gain of a 12AX7 with a higher transconductance making it more touch sensitive. Many also like the 5751 Raytheon Windmill getter,but I have not tried that yet. View Full Listing. with 30% reduced gain, the 5751 is a fantastic way to tame a distortion stage and tone shape an amp. 30-Day Return Policy. 12AX7 one, you need to do a trade-off between the gain factor and the noise level. Conrad Johnson PV-2aR. Psvane 12AX7 / ECC83 preamp tube from the Classic series with red logo. The Rib plate is also a very good quality tube. Mar 6, 2024 · FOR SALE: QUAD NOS Vintage Raytheon JRP-5670 Preamp Tubes, Windmill Getters,1960s: Vacuum Tubes - Valves: $90. Everyone seems to think Sylvanias are the best but I've never had them. 5%) Single NOS ECC83 12AX7 12AX7A. HOUSTON, TX, United States. New Tung-Sol 12AU7W 6189 Preamp Tube. It really cleaned up the amp, but was not what I was looking for. A new take on the classic 12AX7 preamp tube. We recommend these for long tail phase inverter stages which are common in most push pull circuits (most all guitar amps), or anywhere that symmetrical sections are desired. The 5751 is a great 12AX7/ECC83 substitute for users that desire a bit less gain. Everything special about this JJ E83CC amplifier tube is under the hood. I found this article by Old Tele Man very instructive in this regard. 5751 tube also works great in guitar amps in place of 12AX7 to tame the gain. 00: MN Feb 19, 2024: 9 : FOR SALE: Pr Vintage Sylvania 5751(12ax7)Preamp Driver Tubes, Military Spec,1960s,USA, Ex Sound: Vacuum Tubes - Valves: $110. All three pre-preamplifiers (HV1, HV2 and Premier Six) were phase inverting. The highly sought after Sylvania Gold Brand 5751 3-Mica Gold Pin is simply one of the most musical tubes out there. 00. Shuguang 12AX7B Vacuum Electronic Tube VaIve Instead of 12AX7 ECC83 6N4 5751 7025 B339 for HiFi Hi-end Amplifier Audio Senior Player Headphone Pro-amp Fever Acoustic Guitar Pedal Preamp DIY Lab 1pc No featured offers available $25. #6. 5751 = a 12AX7 with a plus on tone! This HIGHGRADE 5751 is a super low noise Tube for Best Clean Tone! The HIGHGRADE Selection is the tip-of-the-top quality with lowest noise (microphony, hum, hiss) level. I usually ran with a Tungsol in V1, and USA GE/Jan 5751's in V2 & V3. Mar 15, 2013 · 03-15-2013, 12:13 PM. Last edited: Jan 8, 2015. yy nz xf yl vj sg tf sd xo ea