Best 5751 preamp tube Siemens 5751 Triple Mica tubes made in Germany. Note: Packaging and printed label may vary. Other NOS Treasures. RCA Grey plates Black Plates 5751WA The Tung-Sol 12AX7 is a very good tube, and I recommend it for: High gain Rhythm. In this application, you will get good gain with a warmer sound than the 12AT7. Since it always seemed just a bit to gainy for me, I tried channel 3 with the gain set around 2. Clean tones. 5 out of 5 stars. Brand New. 3/2. I think that same unknown ECC 81 tube was in my PV2! An unidentified Euro tube in the 12AT7 spot. These are labeled and boxed for Heintz & Kaufman - Gammatron. It is one of the best sought after European valves made. so for a new 5751 tube , 70 = 1,200 us x 58 K ohms @ 1 mA would be expected , but typically this can be +/- 10 % . 4ma and 2. The 5751 preamp tube is great for taming high gain guitar amps while vastly improving the clarity, smoothness, and vintage tone! Good to shear off some gain and some other uses. However, with the reduced gain, it didn't overdrive as well as the others, which is something I like to do with the Walkabout. Leads. Experiment and see what works best for you. GE 5751 Triple-Mica Preamp Vacuum Tube No Reviews yet. the jj 5751 was designed as a ruggedised high mu, dual triode tube with similar specifications to the 12ax7. Kind of the opposite of the RCA blackplate -- detailed, lots of HF clarity, extremely quiet Disability Customer Support Medical Care Best Sellers Amazon Basics Prime Today's Deals New Releases Music Customer Service Amazon Home Registry Pharmacy Gift Cards Smart Home Books Fashion Toys & Games Pair of JJ 5751 Preamp Tube. #2 GE grey plates, a little more bite to them, but still very good. - Gain, Treble, Bass controls - uses a James Tonestack to provide a wide adjustment range with minimal interaction. Toneologist. Tube Type: 5751. But it I have also have an (old) Hafler DH-200 and 2 mono Magnavox tube amps I restored - 6V6 tubes at 10 w/ch. they and are often used to quiet down guitar amps Tung-Sol 5751 Audiophile Preamp Tube. The NOS tubes are becoming a little rare to find. 439. Where the average new tube reading is 1250 So the 1050/1050 reading is a decent testing tube where the minimum good is 790 on those testers. This means that if you plug a 5751 into a socket that expects a 12AX7, the pre-amp will have about 30% less gain. 5751 HIGHGRADE TAD Premium Selected The HIGHGRADE Selection is the tip-of-the-top quality with lowest noise (microphony, hum, hiss) level. . Preamp Tube Gain Factor and Substitution Chart. 71. Today's new production Tung-Sol tubes are constructed with the same commitment to quality and reliability. Opens in a new window or tab. Was thinking Tung sol or Gold Home. It also seems to give my amp a bit more focus as well. It most likely is because it has a lower gain, a mu of 47 compared to 60 of a 12AT7. CBS Hytron 5751 3-Mica NOS preamp tubes (VERY RARE! ECC83 / 12AX7) Used – Excellent. The standout feature of these tubes is that they have 70% more gain Tube Depot carries a selection of 5751 Pre Amp Vacuum Tubes. Typically only 1-5% out of the whole production yield make it to meet the HIGHGRADE requirements. Performs great New-old-stock Philips ECG JAN 5751. or Best Offer. About the Seller. 5 are old "Black plate" GEs from the late 1950s. I changed the first tube in the line stage from a 12ax7 to a 5751 because I got the impression the first stage was overloading the second stage. ” Read “ on that configuration The 5751 preamp tube 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. JJ 5881 Power Vacuum Tube (Matched) (3 Reviews) USD $‎29. A 12AX7 in the Ghia gives the amp a bit more English attitude both 18 watt Marshall & VOX type tones. Based on user ratings in the last 8 years, here is the list of winners and losers. The JJ 5751 preamp tube can be used in most 12AX7 circuits to achieve more headroom. 12AX7 Types. I run a 5751 in my Ghia , a RCA Black plate Command series. Use which ever one fits with what your trying to do with the amp. This came in a lot of 5 matching tubes I acquired, and were NOS. Best Modern, Vintage, and NOS 5751 Preamp Tube? Tags: None. Top subscription boxes – right to your door: PillPack Pharmacy Simplified: Amazon Renewed Like-new products you can trust : Conditions How to: Often with a tube amp you might wish that the actual amplifier had less gain. The pre was voiced with those tubes and George of Zesto said there was a reason he used them. I'm game-on to explore tube-rolling the 12AT7 preamp tube of my 300b amp. Was: C $32. Premium 5751/12AX7 with 3 mica spacers and 2 support rods to ensure low microphonics. New production tubes from JJ, Sovtek and Black Sable treated JAN Phillips 5751 NOS! Metal Muff w/Top Boost; Microsynth; Mod 11 Modulation Pedal; Nano Clone; Elekit TU-8500 Stereo Tube Preamplifier Kit; Elekit TU-8550 Stereo Tube Preamplifier Kit; Elekit TU-8600S 300B Tube Pair of JJ 5751 Preamp Tube. 5. 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. I put the 5751 in the mesa pedal first tube and a 12ax7 second and an 12AY7 in the first stage of the princton. 70% of the gain of a 12AX7. Originally posted by crusty there are 2 preamps in a preamp tube). 70 $ 47 Brand New Gain Tested Tung-Sol Reissue 5751 Gold Pins Vacuum Tube. In some extreme cases, the lower gain of the 5751 can JJ 5751 Preamp Tube. Helpful. JJ 5751 Preamp Vacuum Tube (10 Reviews) USD $‎21. Not as high gain as some and warm and clear tone with good harmonic content. Tesla short plates rock. This is a game of tube rolling to find the best sound to suit my taste. E. The majority of the remaining 20 are old Sylvanias from the 1960s. Only 8 left in stock - order soon. Good condition items function properly but may exhibit some wear and tear. The rugged build of this tube and reduced gain (30% less than a 12AX7) can improve headroom and give better co read more This set contains 2 Tung-Sol 5751 New Production Preamp Vacuum Tube. Placement in the middle can 1) GE box-plate 5751 (first 5751 ever produced) - very clear, a little raw 2) RCA 3-mica black-plate 5751 - for fatter tone, for overly-bright amp 3) GE 3-mica black-plate 5751 - very bright tonal character, if that's desired 4) GE 2-mica gray-plate 5751 - good general-use 5751, readily available 5) Raytheon windmill-getter 5751 - very smooth In a Fender amp that uses a 12AT7, the 5751 has been found to also benefical over the original also. FREE delivery Thu, Aug 29 . TK Non Biased General Best 5751 Tube #1. Sovtek 5751 Vacuum Tube. A good upgrade for a jazz player wanting tube sounds. 5751 is a tube designed for use by the military. Location: Wakefield, UK; Join Date: Jan 2012; Posts: 831; Share Tweet #2. Sooo many choices. That said, this swap doesn’t work the same way in all 12AX7/ECC83S loaded amplifiers. I like a Gold lion for the v1 or a Tungsol and rest with old stock preamp tubes for warmth! After good while with dialing it in keep the treble and presence around 3 is the key for me. Used – Very Good. Bright and clear tone with great note definition, lots of harmonic content and wide soundstage. (By the way, the Sylvania 5751 are the best sounding V1 tube I have ever heard in a Hot Rod Deluxe. 41. 40 Products . It also has two extra support posts to further assist with the reduction of microphonics. a lower gain tube is not the ticket for me. That's why good tube distributors need to routinely test tubes they sell: put even two high-quality NOS preamp tubes from highly 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. Other tubes right now are nos Sylvania 6267 and I guess the stock jj 5751 tubes. jaymanaa RIP 1961-2018. Learn more. (EZ-81 vs GZ34), 1 solid state; 2 6dj8 based, 1 5751 based. For example, many tout the superiority of the 5751 in my EAR phone pre. 03-15-2013, 12:13 PM. One of the "Holy Grail Tubes" in audiophile circles, they are very rare and very sought Be sure to read our customer reviews to help you find the best 12AX7 preamp tubeMore Details. the JJ Electronics 12AU7 is the best tube for audio, in our opinion. However, preamp tubes like Telefunkens, Mullards, Tungsol, and Amperex can go for $30-$90. Make sure you have a strong, hardy tube for your V2 cathode follower. JJ GZ34 / 5AR4 Rectifier Vacuum Tube The JJ 5Y3-S rectifier tube is the best current production replacement for NOS/USA made 5Y3GT rectifier tubes. In this application, you will get good gain with a warmer sound than "absolute best". I'd like to do this with my Archon 25 combo. 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 but it really changes the structure - a lot. With 30% reduced gain, the 5751 is a fantastic way to tame a distortion stage and tone shape an amp. The heart of the Oracle is a single 12AX7 tube, selected for low noise and good tone, and fed by a 300VDC power supply. Distinguished as the finest product in our HIGHGRADE selection, the 5751 Preamplifier Tube spearheads the highest sphere of auditory excellence. com FREE DELIVERY possible on eligible purchases Low-noise Tube for Best Clean Tone! The TAD Selected 5751 is Tube Amp Doctor's first choice for noticeably improved clarity, smoothness, and a true vintage tone character for most guitar amps! the 5751 tube will Description: 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 Then, I decided to try some preamp tube swapping. from United States. This is a suitable replacement for any 5751 tube type. It is kind of like using a 5751 in place of a 12AX7–the lower gain being the main difference. It has 70% of the gain of a 12AX7 so it will reduce gain for sure in V1. ca: Musical Instruments, Stage & Studio. Consistent good sound and easy to get. 1969 GE 5751 JAN Mil-Spec Tube, Tested, NOS/NIB. The JAN GE 5751 also had good tonal balance and was a pleasant sounding tube - not harsh at all. 5751. However, with 30% reduced gain, the 5751 is a fantastic way to tame a distortion stage and tone shape an amp. Using my Peavey XXX amp and my Ibanez Axion Label guitar. Price $84. Sort & Filter . Re: Best 5751 Tube? The best old one ive tried is the Jan 5751. The 5751 vacuum tube is a preamp tube that was introduced in the late 1940s as a higher-gain, lower-noise replacement for the popular 12AX7 tube. In hifi preamps and CD players, the TAD 5751 HIGHGRADE will lower noise floor and sound smoother and clearer in place of many 12AX7 tubes. Rod ~ World Tube Company Mullard The Mullard 12AX7 / ECC83 is a Very Smooth Sounding tube. Forums. Pair of JJ 5751 Preamp Tube #5. GOOD TO ROPE THE GAIN OF A HIGH GAIN AMPLIFIER. Thread starter Atropos_Project; Start date Mar 8, 2017; Atropos_Project with that 1 (or 2) tube swap above, the gain levels are now much closer between ch 2 & 3. What's new. 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. The 5751 is an industrial version of the 12AX7/ECC83/7025. Tested in-house. 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 One Brand New Groove Tube Silver Series ST-5751-M Preamp Tube in Original Box. The internal NOS Siemens 5751 Tubes-Extremely detailed,Beautifully clear and transparent top end, very defined and tight bass. Related Posts. You can find good vintage tubes for 15-25 bucks a tube. I run a Fisher 800C, and I put Westinghouse 7591's in the power section and RCA longplates in the 12ax7 spots, and I have been VERY-happy with the results (The 800C is powering a pair of 1963 Wharfedale W90's). JAN Philips 12AX7WA Preamp Tube (12AX7 or ECC83 Replacement) Hickok TV-7 Tested - Close Balanced Triodes - Strong Sounding. I do have an old 5751 in v2. All 17 tubes of my McIntosh mx110z’s tuner/preamp tested good here. Great for taking a high gain amplifier. 42 sold RCA 5751 3 Mica Tested VACUUM TUBE Strong D Getter Black Plate Good Life Test. The amp just seems a bit smoother and fuller with it compared to the stock 12AT7. Preamp tubes are matched by gain and mutual conductance (Gm) Buy Vacuum Tube - 5751, Tube Amp Doctor, Premium Selected: Tubes - Amazon. Yes really. Tube preamps give you the best of both worlds. Email address. You’re going to notice exceptionally warm and clean audio. Tung-Sol 5751 Tube #4. Currently in my 12AX7 amplifier front end I have low-noise matched Sylvania NOS 5751 gold pins, or Siemens NOS; in my preamp phono section, as an example, I use 12AT7 (not a substitute for 12AX7) either Mullard or The jj 5751 preamp tube can be used in most 12ax7 circuits to achieve more headroom. Skip to main content. If you use the The 5751 is a lower gain tube than an AX7 so it may very well work wonder on amps with OTT gain like the Savage or Recto's. Very hard to find these !. Brands; News. Most have had good experiences with the JJ ECC803S for a PI tube as well, but I've never tried one for myself. Great post!! That tube design is prone to microphonics, so not the best choice for a first position for a given amp channel. 99. or Best Offer +C Up for grabs is this sweet General Electric 5751 preamp tube. Best Seller. Also try GE JAN 5751. The 5751 version of the 12AX7 was created as a military spec. 200+ bought in past month. warm sound clear mid ranges. JJ 12AX7 / ECC83 Preamp Vacuum Tubes (Three Pack) 4. 71 $ 47. Probably not a bad tube but I'm keeping as a spare. But in these days of incredibly high gain levels on tube am The JJ 5751 is a high quality, low noise tube built to classic 5751 specs. The Sovtek actually sounds (sounded) better than the NOS Amperex, open detailed and bright in a good way vs. I use a passive preamp and hook my DAC through that to my power amp, so I need all my gain at the DAC stage. 63 30% off. A. “i think the vintage G. They sound horrible as a preamp tube. 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. It came with an Eden branded 7025 which has a very smooth tube grind/overdriven tone. zek4u, Feb 2, 2019 #11. Out 2 may be used additionally to feed a DI box. Especially this low-noise tube is recommended Which 12ax7/5751 tube won the right to be called the best and the worst? Updated August 5th, 2020. TAD Amp Kits Tube Sets; Ampeg Tube Sets; 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. 95 . It's a flexable preamp tone wise but it's set flat ninty precent of the time. JAN Sylvania 5751 NOS Tubes. Tung-Sol tubes reflect the b | 5751 TUNGSOL This 5751 is a drop-in replacement for any 12AX7. I'm still using one in the PI postion. $47. A 12at7 is about 50% lower gain according to the chaps at watford valves. Low noise, good texture. Some folks also like the 5751 in the first preamp position. My recommendations are to look for cheaper used tubes from a reputable seller on eBay. 5 star 4 star 3 star 2 star 1 star 5 star. Now in V3, I have read that you want to avoid long-plates - like the 5751 - because of potential feedback issues, so I opted for a Marshall branded ECC83S in Which 12ax7/5751 tube won the right to be called the best and the worst? Updated August 5th, 2020. This 7025 is a high quality and very rugged custom 12AX7 tube produced for us in China by the Shuguang factory. In a console amp (Motorola, Maggie, etc. helps to reduce noise and rattle of vacuum tubes. You can get that crunchy sound sooner and with lower volume. Not sure about lower gain of 70 vs 100 in phono sections with negative feedback. A good alternative to GE, RCA or Raytheon models. My preamp (Sound Valves VTP101) is a cathode follower design using three 12AX7's in the line stage. The 5751 is a lower gain tube than an AX7 so it may very well work wonder on amps with OTT gain like the Savage or Recto's. In original box. A very popular tube, the RCA Command series 5751 preamp tube is sought after for the outstanding clarity & true tonal conveyance they provide, with ruggedized filaments for extra long (10,000+ hour rated) life, to withstand the The jj 5751 preamp tube can be used in most 12ax7 circuits to achieve more headroom. and a couple of 5751’s and 12AT7’s. Prices can vary on these tubes. The 1950's era Tung-Sol 5751 preamp vacuum tube with “D” shaped getter and grey long-plate construction is a very rare find. Stevie Ray Vaughan was known to use 5751 preamp tubes to coax a firmer crunch from his vintage Fender amps. Loving more power tube tone without the harsh 12AX7 preamp tubes Mullard 12AX7 long plate are good in the preamp and a warm phono tube is RCA 12AX7 long plate. Also available in singles and quads! Tested on: Maxi-Matcher 2 and/or Hickok 600A. If you want cleaner tone, Id recommend a 5751 or 12AY7. Holy crap! I absolutely loved it! So, with channel 2's gain around 4 and channel 3 around 2, this thing is sounding so sweet! Preamp tubes NOS and like new - the best of the best! Log-in. NOS Siemens NIB 5751 Triple Mica $199. ) brings out the best of the best. $ What do you guys like for v1 preamp tube in the Dsl20HR. 54. Selection: Highgrade: Socket: 9 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 GE 5751 JAN Spec Preamp Tube ((( Best 12AX7 Substitute ! ))) #6. Early 50s Sylvania or RCA with the D getters are cool. My shop is located at The 5751 was designed as a "ruggedized" high mu, dual triode tube with similar specifications as a 12AX7. The smooth plate is one hell of a tube. You’re also going to notice a “husky” element to it, thanks mostly in part to the JJ Slovak 5751 Vacuum Tube it ships with. The Rib plate is also a very good quality tube. Preferred Series 7025 / 12AX7 Preamp Vacuum Tube (82 Reviews) JAN-GE 5751 Preamp Vacuum Tube (5 Reviews) USD $‎49. The books say the 6072A has far less gain, but in real world conditions it’s hard to worry about Vacuum Tube - 5751, Tube Amp Doctor, Premium Selected - Low-noise Tube for Best Clean Tone! The TAD Selected 5751 is Tube Amp Doctor's first choice for noticeably improved clarity, smoothness, and a true vintage tone character for most guitar amps! The 1950's era GE 5751 preamp tube with triple-mica and black plate construction is considered by many to be the holy-grail of the 5751 vacuum tube family. 99 each per low noise tube Over 100 pcs in original military boxes. Lots of gain to rock out with and a very smooth, compressed, overdrive. As for V3, I've had great results with the Sovtek 12AX7LPS. Hmm, now I'm itching to try some other Westinghouse is known to be a warm, pleasant-sounding tube as well, and some like Tung Sol or the smoky sound of the best vintage Mullards. The RCA Command 5751 preamp tube is one of the best sounding & highly sought after preamp tubes out there, right up there with the Raytheon "Windmill" getter version. Especially this low-noise tube is recommended for best clean tone with big bottom, warm midrange and silky top end. Known by Hi-Fi audiophiles as "Holy Grail Tubes". Specifications: IN: 1/4" TS, Input Impedance = 1 Meg ohm. The 6 Best 5AR4 Vintage RCA 5751 preamp tubes made in the US. One of the most popular swaps, a 5751 will reduce the gain of your first preamp stage by around 30 percent, which can often be enough to tame a fizzy overdrive tone without sacrificing too much of the power and muscularity Tung-Sol 5751 preamp vacuum tubes in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. Report. SRV prefered this setup. Exuding low noise output, this extraordinary gadget delivers silky, smooth, and undeniably vintage tones, making it the number one choice for musicians and hi-fi audiophiles. F. These tubes are the starting point for amplifying your sound. The best part is that you can buy a new tube that sounds this good for one tenth the price of an NOS Telefunken. Winners Tried a 5751 last week, a GE triple mica military issue from the 1950s. 84. " 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. Although this tube uses the classic short plate design it was engineered from the inside out as a purpose built 5751 rather than a low test 12AX7. All preamps are built to order unless I happen to have some in stock. Any ringing indicates a microphonic tube. The JJ 5751 is an excellent 5751 vacuum tube and does exactly what you want from a tube with this designation. with 30% reduced gain, the The 5751 will lower the gain by about 30% I think it is compared to a 12ax7. You can also use this tube in the position of the phase inverter to produce less power from an amplifier. DOUBLE TRIODE5751 CAN BE USED IN MOST 12AX7 CIRCUITS TO ACHIEVE MORE HEADROOM. No issues just some tube rolling. 180 day warranty. Warranty Information and The mid-1960's era USN-CHS Sylvania 5751-W1 vacuum tube with triple-mica and grey plate construction is incredibly rare. GE JAN spec 5751 Preamp Tube All well within NOS specs ! Test results are scotch taped to each tube Smooth out that raspy preamp ! and let your power tubes sing !!! I've been utilizing HQ 5751 preamps as my "secret weapon" to change the feel/touch-dynamics and tonality of many amps, many of which are considered "high gainers" for sure. The nature of the gain is quite different though Favorite is NOS GE 5751. 5755 are a very very similar tube to 5751 except The Tung Sol 5751 is the best lower gain preamp valve of this type. Check out this one take recording by Abraham James using a WA-47 on his acoustic and a WA-47 for his vocals: My current best tube in that 12au7 position was a (newer manufacture) Brimar CV4003 tube I bought from Upscale Audio -- until I substituted the one above yesterday to try out (in my Tavish Design Adagio phono stage). always agrees with my big one, I don’t bother with the big one any more. Anybody have an Archon preamp tube layout chart or know which tube position this would be in the Archon? 12AX7 Tubes including other common names such as ECC83 5751 12DW7 ECC83, ECC82, ECC81, ECC823, ECC832, CV4004. No need for a bass-heavy tube as the amp delivers low-end in spades. Narrow By . Usually between $5-$15/tube. The JJ GZ34S, Re: 5751 tube in V1 I've used the 5751 in both V1 and the PI and it's really a matter of taste. Delivering to Balzac T4B 2T Update location Best Sellers Rank #62,795 in Musical Instruments, Stage & Studio (See Top 100 in Musical Instruments, Stage & Studio) #389 in Amplifier Parts: However, you’ll usually find a 12AX7 and often come across a blend of 5751, 12AY7, 12AU7, and 12AT7. I've been looking around various forums to find out what makes a good PI tube and the differences that various types of preamp tubes can have (i. Bought these to tame a tweed champ and baseman. Jan 9, 2015 #10 I got a good vault of information last time I asked about new tubes for my Tweaker, As far as what tube I like, I generally like a little bit lower gain tube. Though it is not a true 12AX7 - the 5751 can be used as a gain reduction device in place of the 12AX7. But all are GE 5751 with black plates, square top-getter, and triple mica spacers. A great 32mA biasing per tube in the EL34/KT77 family. 1 NOS US 5751 Grey Plate Vintage Vacuum Tube | Try as 12AX7 Substitute in Tweed Amps. This set contains 2 JJ 5751 Preamp Tube. Pre-Owned. I've rolled a few thru my old Jolida, and all the grey plate variants are decent. Brand New with Full Manufacturer's Warranty! Brand New. e. I play a clean guitar so I guess I can sacrifice gain The RI Bassman can be a kick ass amp with even the stock preamp tube set up A review of the JAN-GE 5751 vacuum tube. ). Ribbed plates with top halo getter. The 5751 was designed to be used in audio equipment such as guitar and bass amps, and it quickly gained popularity among musicians for its warm, clean sound and ability to handle high gain levels The Tung Sol 5751 is the best lower gain preamp valve of this type. New posts Search forums. with the red Genalex decal logo around the top of the tube. They're made as a driver tube for reverb circuits and such. In some extreme cases, the lower gain of the 5751 can - 12AX7 preamp tube selected for low noise and good tone, run at 300V B+ (not a starved plate design) - Dual Lo-Z outputs, Out 1 for normal use (power amp, interface, etc. Strong Mid's More Clang , and more volume and drive. DSL40C Speaker Upgrade and Preamp Tube Alchemy - **PICS** vbf; Dec 18, 2015; Marshall Amps; Replies 12 Views 4K. Purchase JJ 5751 preamp vacuum tubes in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. Position of dampers is best when placed on the upper third of the tube. Each. The 5751 started life as a military spec 12AX7 that offered less gain but a Tung-Sol tubes are renowned for their unwavering commitment to quality manufacturing and top-notch tone. Cyrise Husted. It is typically used as a preamp in audio equipment and instrument amplifiers. For instance: "The best 12AX7 is a 5751, the best 12AT7 is "variant XYZ", etc. 300Guitars Shop. Among the 12AX7 family, I really like the Preferred Series 7025s. This tube is also incredible as a phase inverter in some circuits. Old Stock 12ax7. Great for harmonica players. With its high-durability military grade construction, it boasts extremely low microphonic response, rugged performance in extreme conditions coupled with extended life capability To lower the gain of a preamp stage a little, you can swap a 5751 into any socket that carries a 12AX7. These are all pin compatible with one another, the only differences being the gain factor of each tube. But if you are wanting to use it in a first position you can get tube dampers to help reduce microphonics, or do up a home made one, two layers of one inch heatshrink tubing over the sides of the tube, make sure there is clearance for Preamp tube recommendations. Add to Cart. I've done lots of tube rolling with these and my other tubes. We will treat 5751 and 12ax7 in the same category – they are different tubes, but often used interchangeably. 33. Price: $68. Oldpunk. The Preferred Series 7025 preamp tube is a high quality 12AX7 vacuum tube type. The gain factor of a tube simply measures how much it amplifies the input signal. $36. Tweak your guitar amp's gain to optimize your tone! The 5751 is a military spec tube, with a gain of 70, vs the 12AX7's gain of 100. If you don't see the value of a good 1 watt tube amp, it probably means one or more of the following: Preamp Tube Gain Factor. It is a very quiet, low noise alternative to The 5751 has only a gain of 70 instead of 100 like the typical 12AX7/ECC83 tube type and can be used as a drop in replacement for 12AX7 / ECC83 tubes. I like getting more use out of the gain knob in high-gain amps by putting a 5751 instead of a 12ax7 in the right position of the overdrive channel. I haven't tried more than a few different kinds. The JJ 5751 was designed as a “ruggedised” high mu, dual triode tube with similar specifications to the 12AX7. Sovtek 5751 Vacuum Tube #2. Used – Mint. Haven't found a need for the Mullard or Tele's in the consoles so these are the ones. It has a very low noise floor and no tendency toward microphonics. Made in Russia. If you like the clarity of a 12AT7 but want a little bit more gain, you can always try a 5751 tube. Not a true 12AX7 tube type but may work well if you are looking to calm things down a bit. Someone else already mentioned that no one can say how long a tube will last as there 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. by Seth. Having a preamp with a tube rectifier spec 5AR4 / GZ34 I do notice a difference in sound quality between the stock Sovtek and a NOS Amperex. Black Plate triple Mica -military 5751 - same review as the non-military version however, this is a supreme quiet tube. This piece of gear has sold. Manufactured in the USA. Free shipping is limited to the contiguous 48 states. These are all in mint aesthe A vintage 12AX7 that's still a rock solid value is the GE black plate 3 mica 5751. The 12AX7 family of dual-triode preamp tubes consists of the 12AX7, 5751, 12AT7, 12AY7, 12AV7 & 12AU7. We have just a few left! Other NOS Treasures 12AX7 Types Low-noise Tube for Best Clean Tone! The TAD Selected 5751 is Tube Amp Doctor's first choice for noticeably improved clarity, smoothness, and a true vintage tone character for most guitar amps! There will still be plenty of gain - I currently use an Eden Navigator preamp for its three balanced outputs. 12AX7 vs 12AT7) but I can't really seem to find JJ 5751 Preamp Vacuum Tube : Amazon. Dec 21, 2015. Johan Segeborne did a good roundup of 17 12AX7 tubes. Brilliant tube that does a LOT for an amps front end if one so desires. On an amp with not as much gain, the overall sound will just be weak. To lower it even more but retain the same performance characteristics (other than gain) you can use a 12AY7. Low-noise Tube for Best Clean Tone! The the 5751 tube will work wonders. Looking for specific info? Customer reviews. 5751 have the best sound from those 5. Some do not use negative feedback GE 5751 Black Plates Preamp Tube Tested, Works Fine. If V1 is the first preamp tube in an amplifier. The JJ 5751 has all of the qualities we have come to expect from JJ Electronic, a nice tight low Note that the 5751 tube is a substitute for 12AX7, giving a slightly lower output and a greater range of valve types to choose from. GAIN: Up to +32dB at flat EQ settings. Price $19 + $3 Shipping. 48 Of course they're a top choice for phono preamps and hi-fi equipment (or basically anything using 12ax7 tubes). 5751; EL34 / 6CA7; 6L6 / 5881 / KT66 ; 6550 / KT88 / KT90; Elekit TU-8500 Stereo Tube Preamplifier Kit; Elekit TU-8550 Stereo Tube Preamplifier Kit; Elekit TU The Westinghouse 5751's are some of the best made USA tubes with tone for days! These tubes test NOS. Best Seller in Guitar Amplifier Tubes. With some simple know-how and experimentation, it can lead to a dramatic tonal variation of any tube guitar amp without the need for disassembly (most of the time) or soldering. JJ 5751 Preamp Vacuum Tube #3. Elekit TU-8500 Stereo Tube The JJ Electronic 5751 is a dual triode that can be used in place of most 12AX7 circuits. Each brand will sound tonally different than the other. These are not cheap tubes, but IMO superior to new manufacture. Sound great, straight & clean pins, seats tight & snug. The GE 5751 is the only other tube that comes close to this 6072A. Verified Purchase. Browse: Home / Review alternative to the 12AY7 used in original Fender tweed amps and can be subbed for a 12AT7 like a reverb driver tube. These tubes are some of the best sounding tubes you can get. 8 out of 5 stars. a darker, more opaque sound from the NOS tube. ) JJ/Tesla 12AX7 tubes are my favorite current production preamp tube. Thread Status: Not open for further replies. JJ Electronic 5751 Factory Data Sheet: Another short plate preamp tube from JJ which was released to us in January of 2012. 5751 = Gain Factor 70 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. 1 out of 5 stars. I don't find the 5751 always delivers good sonic results as a sub in a circuit designed around 12ax7, in fact, usually the opposite, but that tube sounds great to me. 2 global ratings. New is the JJ Please visit and share my guitar gear & DIY Blog WWW. with 30% reduced gain, the 5751 is a fantastic way to tame a distortion stage and tone shape an amp. That said, I only have ever had one much-talked-about Raytheon windmill getter 5751. The Shuguang was a bit of a surprise. C $22. This is one of the best tube mics for the money. Special note for 5751 preamp tube types: The 5751 vacuum tube is not a true 12AX7, but is often Likewise, the JJ-5751 in V2 was also an excellent move and the tone produced by these tubes in these positions was quite dramatic when compared to the JJ-5751 in V1 and the 7025-WA in V2. The 5751 is a In a Ghia the 5751 does mostly the same in the PI , it smoothes out the sound and increases clean headroom slightly. 2ma) I would avoid using a 12AT7. ECC83S Vacuum Tube Replace ECC83 ECC803S 12AX7 7025 5751 Electron Tube DIY HIFI Audio Vacuum Tube Amplifier (Color : ECC83 S 1PC) See options No featured offers available $55. Manufacturer: Westinghouse. Drop-in replacement for all 12AX7, ECC83 and 7025 tubes. I have tried a 5751 in the v1 slot on a different amp and it did lower the gain and give a lot more clean head room. 0 out of 5 stars Sweet tubes! Reviewed in the United States on January 1, 2021. Mic up your favorite amp and kick on the 4 track (or computer based recording Definitely worth experimenting a fair bit and good NOS can pay off. There is also a British Immerse yourself in the divine world of top-notch audio experience with the Tube Amp Doctor - 5751 Premium - Preamplifier Tube. It has about 30% less gain than a 12AX7, but can supply more current. Toe-Knee. Purchase NOS 5751 preamp vacuum tubes in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. It's quite useful to give you a general impression of how different brand tubes RCA 5751 are good, the better have 3 mica. He said don't be surprised if the stock tubes sound best. Thus it is going to be closer to a 12AT7 (gain of 60) in terms of gain than a Chinese Bs(also known as the Military 6N4) are really good, in all positions. 4. The system is based on 5 stars. Financing Available Free 2-Day Shipping Buying Guides Deals & Steals Exclusives and Makers Price Drops Price Guide Seller Hub Top Sellers & Recent Releases. There was just something about the way that they broke up when pushed that I found really #1 Sylvania grey plates, warm and rich sounding. We carry all of the major brands in NOS, vintage and New The Tung Sol 5751 preamp tube is a dual triode tube and a optional replacement for a 12AX7. RCA 5751 NOS preamp tube The Tube Amp Doctor - 5751 Highgrade - Preamplifier Tube elevates your audio experience to a whole new level of perfection. Psvane 12AX7 / ECC83 preamp tube from the Classic series with red logo. Otlset likes this 5751 Preamp Tubes. 5 out of 5. Also known as 6072, 6072A, and CV3650. Double mica grey plate with O getter model (USA made). The 5751 preamp tube 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. Apparently, Conrad Johnson recommends the GE 5751's. On Sale. This tradition continues with the latest Tung-Sol tubes, which boast the same level of excellence and dependability. Please see the Had a 5751 preamp tube in one of my amplifiers and replaced it with a 12ay7 and noticed right off less gain and a bit more touch sensitivity in this amplifier have always used 12ax7 , 12au7 and the 12ay7 anyone else have any comparisons between The Sovtek 5751 can be subbed in for the 12AY7 in original Fender Tweed amps and in the socket for the 12AT7 reverb driver tube. Great for guitar and phono A good NOS 5751 would fit just fine in V1 for your application. Extra rugged to whitstand military use. The 5751 preamp tube type can be used for taming high gain guitar amps while vastly improving the clarity, smoothness, and vintage tone! This 5751 is a drop-in replacement for any 12AX7. Buy a few and have fun Very nicely balanced tonally, with good articulation. 4/2. 41 $54. In fact I barely noticed it's effect while using the electric basses. The 12AX7 commonly known as an ECC83 would have to be the most widely used tube in existence. Financing Available Free 2-Day Shipping Buying Guides Deals & Steals Exclusives and Makers Price Drops Price Guide Seller Hub Top Sellers & Recent Releases The EF86 vacuum tube is a high gain pentode designed to amplify low-level audio signals. The 5751 is a lower gain tube than the 12AX7/ECC83S. I know cos' I have a JanGE5751 and I used it in V1 of my Legacy and the amp just sounded like diarrhea. The Tung Sol 5751 has a gain of about 70-80% of the standard 12AX7. When it comes to the best 5751 tubes, we have to give them to the Sovtek branded vacuum tubes. 4 Here are the gains for different tube types: 12AX7 - 100% 5751 - 70% 12AT7 - 60% 12AY7 - 44% 12AU7 - 20% ianharpo 2 posts Whats the best tube swap for controlling the feedback on the green bulet that I use. These tubes probably have the best clarity and frequency fidelity of any other preamp tube out there. The 5751 was designed as a "ruggedized" high mu, dual triode tube with similar specifications as a 12AX7. Show More. USD In this video I sound test a Realistic by GE 5751 12AX7 preamp tube. Click to expand Probably the best sounding 5751 tube ever made. Build times range from a few days to a few weeks. I also wondered what it was. 37 (1 new offer) 12AY7 Tube Reviews: See reviews of the best 12AY7 preamp tubes. Typically only 1-5 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. Tung-Sol Reissue 5751 Tube #1. C $62. I have an original vintage 1965 Fender Princton reverb, and Mesa Boogie V- twin tube pedal. Discussion in 'Audio Hardware' started by LeBud, Jul 23, 2021. Because of its design, the EF86 is much more sensitive than other common preamp tubes like the 12AX7 tube, and achieves more gain. I ended up with a Tungsol in v1 and a JJ 5751 in v2. Good examples can still be had around $100/pair. If you are looking for the best 5751 tubes, we Which are some of the best 5751 tubes you have tried? My favorites are the Sylvania Gold Brand and the GE 5 star. Cheers! Read more. P1 is the input gain, which is why I used a 5751 as I had a high output cart (2M Black), P2 is the RIAA curve, and this has to be a ECC83, P3 is the cathode-follower/output and I I used those and same Era 12AU7 in my Zesto preamp and honestly the premium JJ 12ax7 gold and ecc802 gold (12au7) sounded better in that unit. Password Forgot your password? Get Tube World News! Best Tube Deals; All other tubes; Tube Sockets; Tube Shields; Meters; Gas Regulators; Tuning eye tubes; (Best Pair) 5751 GE "5 STAR" NOS gray plates 1965-1975 (2. Used – Excellent. Typical: $54. Discussion in 'Audio Hardware' started by hogwylde09, Mar 25, 2020. No My favorite preamp tube was a JAN Phillips 5751, even more so than the GE. I hope this helps. this is the tube you want to use in select spots of a preamp. View All Articles. Like the 12AT7s, each 5751 has been tested. 5751's are nice. Guitar amplifiers are usually designed to have a non-matched side because that adds distortion IMO, another really good tube, was quiet, and a good even response across the board, but did note just slightly, more forward mids, like the singer stepped up a bit closer to the Microphone. in a tube nerd kind of way, because Ei was owned by Phillips The top 20 vintage tube preamplifiers. BACKLINE. Brand: Hytron; Model: 5751. Preamp:doubletriodes; Powertubes: Pentodes; Rectifier; HiFi Triodes, Transmitting Tubes; Other Tubes; Tube Sets. This tube is a reproduction of the highly regarded and sought after Mullards from the 1960s. The 5751 is a lower gain 12AX7 type with the same plate voltage so the feel stays the same and the amp operates the same with the exception of the lower gain. They have been used to drive audio units for decades and for good reason. ca. I sell tubes on ebay, check ou Strongly committed to quality manufacturing, Tung-Sol tubes have always been known for their reliability and great tone. I agree Raytheon 5751 windmill getter is the best tube I ever heard. 1 x Rare True NOS Matsu/Mullard 12AX7 Sealed Box Audio Preamp Tube ECC83 Smooth Tone Warm Vintage Hifidelity Holy Grail Shop our great selection of 12AX7, 12AX7A, 12AX7EA, 7025, ECC83, ECC803S, 5751 (low gain), CV492, 7058, 12DF7, CV4004, B339, E83CC, M8137vacuum tubes now. I tried a few, including 12AT7s. IT HAS A LOWER GAIN THAN THE STANDARD 12AX7. These tubes are very low noise and have a huge sound while retaining clarity. Since these preamp tube types have nearly identical pin layouts, you can use them interchangeably for your preferred acoustic reproduction. it seems this is a more appropriate application for this substitution than using the 5751 in a phono preamp. The RCA 5751 Black Plate is nearly the holy grail for the 5751 variant. One of the best 5751 tubes ever made. 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. qylv vhnn vcalek niadd ywmrd gmluma qxhqsf knqzys rozqr swt