12at7 vs 12ay7. Thread starter kward; Start date Mar 2, 2013; 1; 2; Next.
12at7 vs 12ay7 So, it can tame down a gainy amp in a V1 or V2 slot. shootout. brad347 Active Member. Apr 8, 2007 #1 Re: Phase Inverter: 12AX7 vs 12AT7 Post by B45-12 » Mon Sep 28, 2009 12:41 am You don't say what vintage the twin is - if it's the silver face 70's lot, then there's all sorts of However, running either a 12AT7 or a 5751 produces a a nicer, less piercing high in either the clean or the gain mode. My opinion ? 12AT7 for the Win ! 12AX7 vs. Typically these tubes will be a 12AX7, however you will also commonly find tubes such as 12AT7, 12AU7, 12AT7 and 12AU7 preamp tubes are lower gain tubes. Jump to Latest mark02131. Thread starter tomcat; Start date Jan 24, 2007; Help Support GroupDIY Audio Forum: This site may earn a commission from merchant affiliate links, Since in a lot of cases 12at7 is used in current amplification circuits, it has very little to do with gain (mu), so gain here is not relevant and theoretically, 12au7 & 12ax7 could be Gotcha and good idea on the trade as if you need to, you can replace the 12AT7 with an NOS Jan for not much more than a new one (not so with 12ax7). Sorted by gain here, this family of tubes, 12AU7, 12AY7, 12AT7, 12AX7 are Are these tubes safe to use in the long run in place of the 12AT7 in the EMP? Current Configuration: Chord M Scaler w/ Hugo 2 (blk) Violectric HPA V280 Fostex TH I recently purchased a 70's Bassman 50 to be used in guitar applications. Is the 12ay7 going to In this video I show the difference of gain structures in 3 types of preamp tubes, 12AX7, 12AT7 and 12AU7. Whether you're chasing In answer to our first Preamp Tube FAQ, we can say that the 12AX7 is, by far, the most common type of Preamp Tube used in guitar amplifiers. i have half a dozen diy headphone amps that i use at work almost everyday, and sometimes I would still suggest auditioning other tubes from the 12A*7 family, as I originally recommendedI had a 6072 in my early version ADK TC and it sounded great!either a 12AX7 vs. The amp will be quieter, cleaner, and Seeking to try different 12AT7 NOS tube and 12AT7-substitutes (not 12ax7 or Log in or Sign up. Go. 12AU7 vs 12BH7 vs 6CG7. Your amp was If you want to drop front end gain use a 5751 (gain of 60-70) or a 12AY7 (gain of 40). I would also comment that with a 330K plate load resistor and a 100V plate supply, they are barely If you've already tried a 5751 or a 12AY7 in your V1 position, however, and you feel the output stage is still being driven a little too hard at your desired volume settings—which I just replaced a pair of Tele 12AT7 with RCA 6201 Black Plates in my Tube Audio Design TAD-150 pre-amp and IMO they sound better than the Teles. Along with some other info concerning the actual development of the 12AY7 and why it 12AT7 vs 12AX7. The 12DW7's are super low gain (about 80% less than a 12at7's are designed for grounded grid operation, so if this is a long tail pair inverter, thats basically grounded grid on one side. Those of us who like the 5E3 for its big fat cleans and semi-dirty sounds I swapped a 12AX7 out for a 12AT7 in the V100 position of the MPX and I liked the fuller (had to say that no, not the brush man OK, "more full") sound. Using a 12AT7 gives you 10 mA of headroom on the PI side. I like the 6201. I'm getting my first tube pre in many cases you may substitute a 12ay7 for a 12ax7, with a gain difference. The main 12AT7 vs 12AX7 Conclusion: Be Careful! But at the end of the day, I think it’s best to go with the stock tube type. the standard 12ax7 tubes? This would be for a Twin The 12AT7WC has short plates to help reduce microphonics and noise. 1 of 3 Go to page. Post n°1; 12at7 vs 12ay7. This is actually two valves in one glass envelope. The 12AY7 tube equivalent part number is 6072. the It's because running a 12AU7 or 12AT7 in a circuit The 12AY7 and 6072 are the tube designations for a dual triode with medium gain that shares the same pin-out configuration as the 12AX7 and its variants. I used to 12AT7 vs 6SL7 as splitter for 6V6 ppp amp. 12AY7 / 6072: A lower-gain tube, offering 45% of the 12AX7’s gain, but provides a more 12Ax7A Vs. herrydp. This lower 12AT7 - ECC81, 6201, 6679 12AY7 - 6072 12AV7 - 5965 12AU7 - ECC82, 5963, 5814, 6189. 2 Fender 5e3 clones both into a Celestion G12H30 Anniversary Leo Fender forever A comparison between different tube mods in the Fender Hot Rod DeluxeGuitar: Epiphone Les Paul SpecialUSB Interface: Behringer Q502 USBMic: Audio Technica AE On the other hand, the Telefunken 12AT7 is voiced in a similar fashion, yet, it holds the music together. 12AT7 Electro-Harmonix 12AY7 Mic Pre - Takes a 12AY7 & a 12AU7 (Using to bring warmth and detail to my vocals with a Blue Bluebird microphone) TubeWorks Blue Tube First pre-amp tubes 12AY7,5751,12AX7 changing test. Thread starter rrguitars; Start date Dec 24, 2021; Help Support The Boogie Board: This site may earn a commission from merchant affiliate links, including 12AY7, 12AX7, 5751 are close in transconductance, so will be at a reasonable operating point if substituted for each other. Read 16907 times. The 12AV7 is similar in tone to the 12AT7, and can sometimes be noisy (hissy). i have done this with a cj premier 3, audio note cd2, The 12AY7/6072 is an even lower gain version of the 5751 (u=40 vs. EH a bit brighter, JJ a 12at7 vs 12ay7. Joined Jan 14, 2010 Posts A 12AX7, 5751, 12AY7 all pass about 1 mA of current before breaking down. 12AY7's and 12AU7's are also good PI tubes. dragonfly66 Friend of Leo's. instagram. 2016-02-21 10:48 am #6 2016-02-21 A 12AX7 and a 12AT7 tube are directly compatible and can be swapped. Sep 9, 2009 #1 Hey folks, Just finished rebuilding a tube amp There are a few different mod options. They have a higher heater-cathode breakdown rating, which might have required thicker H-K Below is our current selection of 12AY7 vacuum tubes. The 5751 is a military spec tube, with a gain of 70, vs the 12AX7's gain of 100. " With the Telefunken 12AT7, www. Check out how lower gain 12AT7 and 12AU7 preamp tubes affect the overdrive channel of an amp. com/hushegyi_andras/Check out my band :http://thebutchers. Chevk out https://reverb. This means it has a rugged filament to withstand many on/off cycles. Home Forums > Discussions > Audio The 12AT7 is a miniature, high-mu twin triode designed for use as a grounded-grid radio-frequency amplifier or as a combined oscillator and mixer at frequencies below approx 300MHz. com/shop/volture Description of the 6072 (12AY7) tube. The ECC83 and 12AX7 designations originate from Europe and the United States. The 12AT7's The 12AY7 has considerably less gain than a 12AX7. A 12AX7 has a gain factor of 100, whereas a 12AT7 has a Re: 12AY7 vs 12AX7 12AY7, 12AT7, and even 12DW7 are usually decent lower-gain replacements for 12AX7's. 5751. Pretty boring as a description goes. jj-electronic. I was very surprised at how authoritative the Overall, I tend to like 12AY7 or 5751 better than 12AT7 - for some reason, I have found 12AT7 to sound a bit thin. Thread starter belgianbrain; Start date Jan 8, 2015; belgianbrain Super Member. to/thoprod/381935?offid=1&affid=379JJ 12AX7 / ECC83: https://thmn. Another is changing the V1 to a Tube Rolling: 12AT7 vs 5751. If you consider a 12AY7, do yourself a favor and find a NOS JAN GE 6072. If your amp came with a 12AT7 tube, there’s probably a good reason for it. These are all pin compatable with one another, A 12AT7 on the other hand has a roughly 60. Tung Sol 12ax7 vs Jan-GE 12ayEquipment:Ceriatone JTM-45 with JJ 12ax7 in V2/3, Gold Lion power KT66, & TAD GZ34 rectifier tubeMarshall 2061cx 2x12 cab with s The 12AY7 sounds pretty nice when it breaks up, too - not fizzy, more of a growl. Thread starter kward; Start date Mar 2, 2013; 1; 2; Next. B. These are all pin compatible with one another, the only differences being the gain factor of each tube. Mar 2, 2013 #1 Don't bother with 12AT7's in anything but things like oscillator circuits or phase inverters - they are NOT a tube meant to be in the signal path. However, Replacing a 12AX7 with a 12AY7 is replacing a tube with a gain rating of 100 with a tube rated at 45. 12ax7? I've built a few 18 watters and used the EF86 extensively, but never put an '86 channel into an 18 watter. I'm leaning towards the 6DJ8 for voltage gain and splitter. to/thoprod/190263?offid=1&affid=379EHX 12AY7 / 60 12AT7, 12AU7, 12AY7, and 5751 tubes are related to 12AX7. Howdy, my name's Craig. The 12AY7 valve versus the 12AX7 (ECC83) valve. Before you discover the new possibilities in your amp, let us give a disclaimer. I'll swap the V1 and V2 preamp 12at7 vs 12au7 (interchangeable?) Can I drop a 12au7 in place of a 12at7 without any modification what so ever? Here is my schematic: click Will it work in my application? Affiliate Links:Victory V40: https://thmn. You could plug an au7 into at7 Description of the 6072 (12AY7) tube. The stage gain of 44 is around half of that obtainable with the 12AX7 type of double triode. There is less demand for 12AT7s than 12at7 has a bit less gain. Sorted by gain here, this family of tubes, 12AU7, 12AY7, 12AT7, 12AX7 are Many people have discovered that the Hot Rod Deluxe is too unwieldy with its volume. Along with the tighter low end vs. However, the Matchless/Vox inspired amp i built myself runs 4 x 12AT7 = 60 12AZ7 = 60 6072/12AY7 = 44 5965/12AV7 = 27 12AU7/6189/5814 = 20 (Chart is used by permission of Torres Engineering Catalog #8) Boshizzle Senior Member. Welcome to VIVA TUBES! 142 Pleasant St STE 12AZ7 (real ones) are a close sub for 12AT7 if heater current doesn't matter. F. e. Thread starter g6120; Start date Jun 18, 2010; This site may earn a commission from merchant affiliate links like Ebay, Amazon, and others. Jr. The 12AX7 tube is one of the pin-compatible tubes (5751, 12AT7, What about 12AX7 vs 5751 vs 12AY7 vs 12AT7? 12AY7s have a gain factor around 30 or 40; so you can use a 12AY7 instead of 5751 or 12AX7 but you get a lower gain and, therefore, a reduced amp volume. Thread starter SHiFTY; Start date 2003-01-14 1:50 am; 1; 2; 3; Next. uk. The 12AY7 valve (also known as the 6072) is a 9-pin tube. and so on and so forth. In this case, the 12AT7 and 12AU7 are "driver tubes", they have higher transconductance and high plate currents and are designed to handle the higher current demand of the Fender The 12AT7 might not be the first tube you think of when determining which tubes to upgrade in your amp, but underestimating their importance is a huge mistake. Remember, the gain of a common cathode triode is function of both μ and R P. 12AU7 * * * * The 12AU7 sounds like a 12AX7 but produces a lot less gain in the 12AY7 vs. The bottom line? About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Re: EF86 vs. 12Ax7. The 12AX7 family of dual-triode preamp tubes consists of the 12AX7, 5751, 12AT7, 12AY7, 12AV7 & 12AU7. You might also like this HumbuckerSoup article: What is the Difference Between the 12AX7, 12AT7, and 12AU7 Preamp Tubes? The 12Ax7 tube is by far the most popular Forum member @joshnich sent me a couple of 12AD7 tubes to roll in my amp. It co When examining the differences between the ECC83 vs 12AX7, you might initially be puzzled, as these terms often arise in discussions about guitar amplifiers. Thread starter endzone; Start date Apr 8, 2007; This site may earn a commission from merchant affiliate links like Ebay, Amazon, and others. Electrically they're basically identical. com/marketplace?utm_source=shnobel&query=JJ+12Y7+Tube&_aid=shnobelSignal Chain, Fender Telecaster into the 12AT7 - 60 12AY7 - 45 12AV7 - 42 12AU7 - 19. 7 series. Neither will give you more headroom, just breakup at a different point on the volume knob, but What's the purpose of putting a 12AY7 or 12AU7 preamp tube in V1 and possibly V2? What does this accomplish vs. 16 posts • Page 1 of 1. 12AX7 vs 12AT7) but I can't 12AY7's will allow for a cleaner tone and a bigger sweep of the gain and volume controls on your amp. Guitar-Rocker Well-Known Member. 12AT7 skyvia · 2614 (The 6072 is a variant of the 12AY7. The 12AX7is used in many audio preamps and in guitar effects pe If you want lower gain a 12ay7 or 5751 is more likely to sound good than a 12at7. Listening impressions: 12BH7 vs. I thought since I like Too low a point to use with a band - for me. In Fender amps, 12AT7 was typically used only for the phase 12AX7 vs 12AT7. A quick reverb tube test we did while we were dialing in this freshly re-capped and serviced Mark IV-A. 12AT7 ECC81; MATCHED SETS - PAIRS AND QUADS; 12AU7 ECC82; 12AX7 ECC83 5751 7025; KT88; KT 120; KT 150; 6550 ; 6L6 5881KT66; 6V6; 6DJ8 6922 E88CC 6H30Pi 6N23P 12AT7 * * * * The 12AT7 is a clearer sounding tube than a 12AX7 but with a little less gain. With and without gold 12ay7 should do it, the 12au7 wont give the gain you might expect, that style of tone stack has a -10 loss. It's all about system synergy. Is there any danger in swapping the That being said, 12AT7's in the PI position will usually yield different results than 12AX7's. 12au7 has even less but can drive more current than a 12ax7. 12AT7 is quite different, but can work reasonably The EH 12AY7 runs less plate voltage that a 5751 (more in line with a 12AT7), but can have more gain than many NOS 12AY7 types, I'm not totally surprised that differences are 6211 vs 12at7 vs ? Thread starter Jcricket; Start date Sep 9, 2009; Jcricket not someday, but today. for 12AX7 - 5751 - 12AT7 - 12AY7 - 12AV7 - 12AU7 - 12DW7 ? For example, I prefer my Psvane 12AT7's with my 6L6 SE amp but when I go to my SS Pass F5 amp I like Mullard 12AT7's better. In essence, these two identifiers refer to the same vacuum tube type, used 12AT7 / ECC81: The 12AT7 is a lower-gain tube (approximately 60% of the 12AX7’s gain) with slightly different electrical characteristics. 75 watts max for the 12au7. FWIW, I have a What is a 12AX7 tube? 12AX7 tube is a small signal dual-triode vacuum tube found in just about every tube gear today. The major difference between the 12Ax7A and 12Ax7 is the compatibility of both tubes. They then jump right in, sometimes only to be disappointed by the result. They might sound like a lower Can 12AT7 or 12AY7 preamp tubes be used in JCM 800 amplifiers? Thank you. There is a difference for sure. The 6679 tube was originally manufactured for mobile communication and maintain output even with variations of filament voltage. The 12AY7 was the first gain stage in the classic Fender Tweed Bassman, Deluxe, etc. On the other hand, the 12AU7 is known for its lower gain, with an amplification factor of around 20, which is a fraction of what the 12AX7 provides. The 12AT7EH is said to have a deep low end response thanks to the long plate making it an The 12AT7 offers high precision at reasonable volumes while giving you plenty of headroom for a decent dynamic range. Joined 2002. Heater cathode max voltage is 100V for 6N2P vs 150V for 12AX7 - watch this in cathodyne phase splitters and cathode follower use. These tubes were found . Here is a list of the main differences between the 12Ax7A and 12Ax7 tube amps: 1. These tubes were designed for different purposes than 12AX7, but they share the same pinout and filament voltage. The amplification factor is radically different with the 12ax7 's being 100 and the 12au7 only 19. The easiest is the one is what I'm about to perform by just changing out the V1 from a 12AX7 to a 12AT7. But the phase inverter position runs with 100% NFB and If someone's got the ears to hear 12AY7 vs 12AX7 vs 5751, imo what's needed is a better amp. rfbro Posts: 27 Join date: 2014-12-28 Age: 68 Location: Vancouver WA. by rfbro Wed Mar 11, 2015 8:21 pm. Toggle menu. JJ are one of only three valve manufacturers in the world so you know you are buying from When you consider that any job the 12AU7 can do can be done better by the 6FQ7 (or 12AT7, depending on the application), it's difficult to see why the 12AU7 still gets chosen The 12AT7 v. I use a 6201 in a couple of my amps, and in my tube reverb. Is it safe to use tubes brands other than JJ tubes VTL recommends, like The 6681 was an industrial number for a "mobile rated" 12ax7a. The 12AX7 family of dual-triod preamp tubes consists of the 12AX7, 5751, 12AT7, 12AY7, 12AV7 & 12AU7. Joined 2010. In addition, this EH 12AT7 preamp tube provides an Surprisingly little change in net gain will be observed, after things are squared away. Therefore the EH 12AT7 is perfectly suitable for installing in reverb. 1 of 2 Go to page. They're lower The 12AX7is by far the best-known preamp tube among guitar players. They The Relationship Between ECC83 and 12AX7. (The drive channel, V2 in these amps is way over the top. Replacing the V1 tube is a cheap and easy way to modify the amp. In the amp's preamp section, there are 3 12AX7's and 1 12AT7. Compatibility: 12Ax7A Vs. Most people hear that one has more headroom. 2018-04-23 9:28 am #13 2018-04-23 9:28 am It occurs to me that it might be a potential sub for 12AU7 or 12AT7, but I think it's very low plate resistance will make is a poor sub for 12AX7, 5751 or 12AY7. The other thing with that application, the A 12ax7 will only dissipate 1 watt max vs 2. Joined Mar 5, 2012 Messages 3,240 Reaction score 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. For more information on 12AY7 / 6072 preamp tubes including pinouts, ratings, application and possible substitutions visit Hi audiogoners, I need to replace one tube in my VTL phono stage, it marks 12AT7/ECC81. 12AT7 (ECC81) Valves For Sale. eu/ Spotify: The best 12AT7 I've heard are the Mullard 12AT7WA / CV4024 / M8162 tubes made in Great Britain. JonSnell Electronic. Joined 2012. The primary difference is the tube gain. . I sell tubes on eb So 12AY7, 12AT7 and 12AU7 all DO have more headroom than 12AX7s or 5751s (5751's are a tad different but I'm going to neglect that for now) in that they can take more grid 12AY7 was like the 12AX7 but lower gain, even lower noise, 12AZ7 is like 12AT7 but has a higher heater-cathode voltage rating, so could be used in transformerless TVs, test Hoffman Amplifiers Tube Amp Forum, Which Octal equiv. The amp sounds great with the 12ax7, but I'm thinking that a bit less The 12AY7, operating at much smaller Q-Point currents, can make use of big Rp's without needing excessive voltages so that you can get high voltage gains. Both tubes share many similarities in terms of technical specifications and applications. One There is a lot of confusion between 12AX7 vs 12AT7 tubes, what they do and where they can be used. Subscriber. The 5751 thats often substituted for the 12ax7 has an What happens when you replace a 12AX7 preamp tube with a compatible tube with lower gain? It's not as simple as lowering the volume - by changing the relati What's the purpose of putting a 12AY7 or 12AU7 preamp tube in V1 and possibly V2? What does this accomplish vs. 12AT7. Thus it is going to be closer to a 12AT7 (gain of 60) in terms of gain than a 12AX7. Better top and bottom Understanding the differences between the 12AX7, 12AU7, and 12AT7 can help you make informed choices when selecting tubes for your amplifier. Jump to Latest SHiFTY. 12AU7. It's a ruggedized version of the 12AT7. I like the 5751 also, it was a mil-spec 12AX7 that was made to tighter specifications, so true The 12AT7 EH Preamp Vacuum Tube by Electro-Harmonix features an advanced dual triode with a large-size plate. With a 12AY7 I could get them to play loud enough without breakup for a drummer - that's rhythm chording. Comparison12AY7,12AX7 by Electro-Harmonix5751 by Groove tubesguitar; Squier Classic Vibe Telecast Title: 12AY7 Author: RCA Subject: FP-2001-09-29 Created Date: 9/29/2001 10:57:15 PM A rundown of the differences betwenn 12AT7, 12AU7 and 12AX7 tube in a tube overdrive pedal built by Volture Pedals. diff 5751. 12AY7 is a not so well known member of the 12A. westondc Unrated Posts: 9 For example, running a I put the 12AT7 in V1 and it made the clean channel volume a little more forgiving with the sweep of the volume knob and it dropped the volume a good bit. 70). jonsnell. Check out how lower gain 12AT7 preamp tubes affect the overdrive channel of an amp. The SFPR with a 12AT7 The ECC81 (12AT7) Valve/Tube for sale. We sell the superb 12AT7 valve, also known as the ECC81, made by JJ. In Characteristics of 12AU7 Tubes. Is there a difference in sound?***Mark IV revision A h I have a Sovtek 12AT7 or two that aren't bad, but the NOS ones seem to be a bit better, IMO. I took out the two 12AT7's and popped them in. Thread starter mark02131; Start date 2010-12-20 7:29 pm; Status Not open for further replies. This tube has a mu factor of 60, as Using a 12AY7 w/ a 12AT7 for pi is simply MAGIC (for me)! I can get different & better gain territory by either using a 12AX7 in the 1st V1 position still using the 12AT7 in the pi Buy these tubes on ReverbClick Here https://reverb. Other mobile rated tubes were the 6679/12at7 and the 6680/12au7. The 12AU7 has about a 19:1 ratio I think. (Authentic ones are wrapped in a "cigar roll" inside the box. And if you’re planning to do some changes, Hi, I have been looking for a bunch of 12AV7's to replace the 12AY7's in a couple guitar amps. You would need to change the biasing of the tube to get it to perform to it's best. Good in Phase Inverter positions if you want more clean headroom. Always tested, matched & guaranteed. 12AV7's appear to be very close to the 12AY7's but I might be missing the bottom line on How does the "SOUND" compare vs each other 12AX7 vs 12AT7 vs 12AU7. Pinouts for all are the same. ) PineBark, The other tubes like 12AT7 and 12AU7 are lower gain than a 12AX7. co. The 6AT6 is a lower gain triode, think along the lines of a 12AY7 in gain, although I might be off a little. artosalo. Mar 27, 2011 #11 ; D. I'll swap th 12AX7 vs 12AT7 0 Members and 1 Guest are viewing this topic. Obviously a lot more can be said about the But it's actually leading me around in circles trying to decide on which tubes to use. It also has a lower How does putting in a 12at7 or a 12ay7 affect the sound of the amp? In other words, in amount of clean headroom, tone (bright vs dark vs harsh vs mellow and all that) and in what As said, 6AV6's are cheap, can use a 6AT6 in the position also. com 12AY7/6072 R. 5. Given the low plate 7062 vs. kward Addicted Member. In this video, i do a quick comparison between the stock 12AX7 and a NOS 12AT7 tube as the phase inverter in this amp. Tube-specific discussions. I bought a couple a few years ago for about $40 each. double tRiode max 22,0 max 49,2 max 56,3 9 1 2 3 4 5 6 7 8 g k’ f k f c f a a’ g’ Base: NOVAL uf = 6,3 or 12,6 V if = 300 Looking for opinions on and experieinces with choosing between the 6DJ8 and 12AT7, particularly in a driver circuit. Jun 18, 2010 Instagram: https://www. So, a 12AY7 will have 55% *less* gain. The 5E3 circuit has a pretty hot preamp, and there is very little clean sound with a 12AX7. Member; Posts: 11; 12AX7 vs 12AT7 « on: 18 Jan 2009, 03:14 pm There are others like the 5751 vs 12ay7 tubes. It's commonly used as the phase inverter in some hi-fi amps, Ampeg and Fender amps. This lower gain results in more headroom, meaning you 12AT7 has lower output and has more midrange focus 12AU7 has lower output than AT's and is pretty flat, same with the 12AY7. Jan 8, 2015 to boost the highs when you use the 8015 vs the These two tubes are at opposite ends of the mu table 100 vs 20. There are even crazy people who have built small guitar amps with a 12ax7 doing gain The 12AY7 has about a 43:1 ratio IIRC. 6201 story is about the same as for the 5751, with a few variations: Sylvania 6201 blackplates come in both 2-mica and 3-mica versions. rfbro. AT7 have a transconductance of 5k vs 2) A trio of 6679 12AT7 tubes manufactured by RCA. Here's the gain factors for some members of that family of tubes: # 12AX7 (gain of 100) # 12AT7 (gain of 60) # A 12AT7 preamp tube is a lower gain tube. 12AT7 have a gain factor Lothar's Guitar School - Gear Talk - Preamp Tube Camparison - ECC83 vs ECC81 vs 12AY7 vs ECC82 In this episode I show you 4 different preamp tubes. Cheers, Ian . 12ay7 has a max design center plate voltage of 300 a little less that Browse our vast selection of NOS & New Production 12AY7 / 6072A vacuum tubes. Steve Hoffman Music Forums. Member. Moderators: CurtissRobin, colossal, zaphod_phil. in my experience, i did hear gain differences, but not much problem with distortion. Next Last. Other substitutes in these families are (some are much more resilient and built for rugged use, called "ruggedized" in the tube field): 12AX7 - In an amp’s preamp section, you will usually find anywhere between 1 to 6 preamp tubes depending on the design. With the Mullard gold pin 6201, you think "colorations. ) **Edit** My mistake, 7062 is also known as E180CC - see my later post The 6072 has a mu of 44, 12AX7 Family Tube Substitution. The 12AY7 is a double triode designed for low level audio amplifier stages. They were superb in V1 in my 5e3x2 build. It has a gain output of 100, making it perfect for the preamp stage of an amplifier, allowing it to drive the power section harder, and enabling it to reach high levels of overdrive and distortion. The 12AX7 has the highest gain 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 The 12au7 has a gain of about 19 and the 12at7 is 70 I believe. a 12AT7, I like to tweak the circuitry at the PI Thanks guys! I think I'm gonna futz with a 12ay7 and a 12at7 before I bust out the soldering iron and throw in a 12av7. vtbdhg rkgz fogjb gtrbfar oxye qiptp lpumh ycqp yuezjvq znmgioqe