12ay7 gain. It should prove very helpful for those w...

  • 12ay7 gain. It should prove very helpful for those who want an idea of how a tube swap will affect the output volume. It is the tube's realized-Mu reduced by the voltage divider action of the tube's internal plate resistance ("rp") and the external load of the plate load resistor and the next stage's grid-leak resistor. The 4S Universal preamp is a super simple single stage line level Hi-Fi preamplifier that will work with any of the 9-pin miniature 12A*7 twin triode tubes (12AU7 12AV7 12AY7 12AT7/12AZ7 12AX7). As mentioned above the 12AY7 was specifically developed for low noise performance in applications working at low levels, which makes it an interesting candidate for the first stage in phono or microphone preamplifiers. 12AT7 Tubes The 12AT7 tube is almost identical in looks to the venerable 12AX7 tube, and in many ways can be used for the same applications as a 12AX7. jeff Last edited: Aug 19, 2024 vinylkid58, Aug 19, 2024 #2. We will take a look at why you might, or might not want to swap out the different types of tubes. It will overdrive the preamp section going into the power amp and cause distortion. The General Electric data sheet lists an operating point specifically for such low level applications. The 12AY7 is a low-gain tube great for harp or blues where softer, more compressed distortion at lower volumes is desired. The gain factor of a tube simply measures how much it amplifies the input signal. ATING The 12AY7 is a miniature medium-mu twin triode designed primarily for use in low-level stages of high-gain audio-frequency ampli. Get to know them! The Groove Tubes GT-12AY7 injects your guitar amplifier with the sound of an early Fender. The TADTM 12AY7/6072A is a High Performance Medium-Mu Twin Triode The TADTM 12AY7/6072A brings back that Vintage Tone of the legendary Fender Tweed Amps of the 50`s. Low-Gain Tubes (12AY7, 12AU7, B739): These produce cleaner tones with less distortion, making them excellent choices for players seeking a transparent sound or seeking to tame overly aggressive amps. Gain aside, a good 12AY7 can still sound very full, rich, and well-balanced, and offers a great way to achieve maximum headroom and minimum early-stage fizz from many preamps in other types of amps. 2. A good alternative to the pricey and hard to find 6072 for your microphones. Back To Previous In case anyone was interest in the various gains of the tubes they use, here's a few of them listed for tubes used in preamps and small headphone amps. Check out how lower gain 12AT7 and 12AU7 preamp tubes affect the overdrive channel of an amp. Compared to a 12AX7 (gain factor 100), the 12AY7 has a gain factor of 45. It would be a lot easier to take the cheap 12AT7 or the omnipresent 12AX7 and knock their gain down to what a 12AY7 would give. This tube is right at home for blues, where a softer, more compressed distortion is desired. This tube provides clear, balanced tonal response, making it an excellent choice for microphone preamps seeking moderate gain without excess noise. You can change tubes to vary the preamplifier gain. 12AY7 Low Gain modernes Electro Harmonix 12AY7 / 6072A Qualité et selection Premium : * testées : gain, Gm et bruit * 12AY7, pour faire sonner un Fender TWEED original en V2. Electrically, 12AV7 is a hybrid of 12AY7 and 12AU7. It can also sub for a 12AX7 to lower gain and produce a warmer tone. The stage gain of 44 is around half of that obtainable with the 12AX7 type of double triode. This means that if you plug a 5751 into a socket that expects a 12AX7, the pre-amp will have about 30% less gain. So far I like running a 12ay7 in my 10 watt amp. Quote: Tube Gain 12AX7 = 100 What's the purpose of putting a 12AY7 or 12AU7 preamp tube in V1 and possibly V2? What does this accomplish vs. Contains: 12AT7, 12AU7, 12AY7, 12AX7/7025, 6SN7 and others similar, FAQ 12AY7 / 6072 12AY7's will allow for a cleaner tone and a bigger sweep of the gain and volume controls on your amp. 12AX7 - ECC83, 7025, ECC803, E83CC, 6681 12AT7 - ECC81, 6201, 6679 12AY7 - 6072 12AV7 - 5965 12AU7 - ECC82, 5963, 5814, 6189 You can further shape your sound by changing the gain factors of the preamp tubes you use in the preamp modules. Depends on my mood - sometimes either one. But is it safe to do so? What are the differences? The 12AX7 is known for its very high gain capabilities (100 times the initial input voltage), and its small size and cheap production cost has also contributed to its longstanding use. If your amp is designed to use 12AY7/6072, then just stick with that tube IMHO. Les commandes en ligne passées pendant cette période seront expédiées à partir du 20/02. Quite simply the best 9-pin triode preamp tubes you can buy — specifically designed and tested for musical instrument amplification and standard equipment on Your Favorite 12AY7 or 12AU7? - The Steel Guitar Forum Strings & instruction for lap steel, Hawaiian & pedal steel guitars Matt describes the design and construction of the 4S Universal Tube Preamplifier. So about half or 6dB in technical terms. It may require minor adjustments to the bias for optimal performance. The 12AY7 is a double triode designed for low level audio amplifier stages. Have any of you run the even lower gain tubes 12av7 or 12au7? 12ax7 Gain factor of 100 5751 Gain factor of 70 12at7 Gain factor of 60 12ay7 Gain factor of 45 12av7 Gain factor of 41 12au7 Gain Changing only the first tube in your amp's gain stage can affect how the rest of the circuit responds to your guitar. I've read that switching to an 12AY7 for the first gain stage will smooth out the overall tone of some amps. The 12AT7, 12AuU7, 12AX7, 12AY7, 12Az7, 5751, 7025, and a whole slew of other miniature dual triodes with the 9A pinout are pretty much interchangeable--but take note. It has less gain than a 12AT7 - but not quite as low as a 12AU7. 12AY7's have less gain than a 12AX7, 5751, and 12AT7, but more than a 12AU7. Since most tweed fans are in it for the overdrive, replacing a 12AY7 with a 12AX7/ECC83/7025 will make an amp livelier and quicker to distort. 3. The old, lower gain, stock/"normal" 12AY7. for 12AX7 - 5751 - 12AT7 - 12AY7 - 12AV7 - 12AU7 - 12DW7 ? The 12AY7 is a miniature medium-mu twin triode designed primarily for use in low-level stages of high-gain audio-frequency amplifiers. The tube is specially designed to exhibit low noise and low microphonic output. Substitute this low-gain preamp tube for a 12AX7, and you'll experience slightly lower gain and increased warmth. GT-12AY7 (Single)GT-12AY7 tubes pass every Groove Tubes premium certification for microphonics, hum, physical characteristics and function. With a gain factor around 44, the 12AY7 has a clear and open tone and the amp will run cleaner. 4. But soft clipping could become a problem. 12AX7 has an amplification factor of 100, where 12AT7 has 60, 12AY7 has 40, etc. For more information on 12AY7 / 6072 preamp tubes including pinouts, ratings, application and possible substitutions visit 12AY7 in Duncan Amps. The 12AY7 also draws more current though, which basically “browns” the out amp some, so even though there’s less gain it does overdrive quite nicely which is what gives it that special tone & feel. I’d like to understand this subject more. Voltage Gain - Output Voltage divided by Input Voltage for this tube stage. Those other designs offer lower voltage gain (traded off for higher plate current) than the 12AX7 (which has a voltage gain or of 100), and are more suitable for high-frequency applications. The 12AY7 was the first gain stage in the classic Fender Tweed Bassman, Deluxe, etc. It's commonly used as the phase inverter in some hi-fi amps, Ampeg and Fender amps. Base: NOVAL uf = 6,3 or 12,6 if = 300 or 150 The tubes listed below have several equivalents. 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 gain factors are very similar, though. Sep 22, 2019 · The only real rule is: NEVER USE A 12AX7 TUBE in any row. All the tubes you've listed are pin compatible. If you want to drop front end gain use a 5751 (gain of 60-70) or a 12AY7 (gain of 40). Also it does no harm, you can always change back. Pour obtenir une réduction de gain à la place d'une 12AX7 préférez la 5751 ou une 12AY7. The tube is specially designed to exhibit low noise and low microphonic o. The new JJ 12AY7 tube is a low-gain replacement for a 12AX7. If you switch from one tube type to another, you are changing the circuit design. The 12AY7 seems to work better as a AX sub possibly because it has similar cathode bias needs. Les Paul with volume and tone pots on full. More gain isn't going to equate to more output power. Hoffman Amplifiers Tube Amp Forum, Which Octal equiv. It definitely reduces the volume a bit but it seems to open up the volume control for more clean tones. The 12AX7, 12AT7, and 12AU7 all belong to the same family of nine contact, twin triode tubes. The main difference between 12AX7 and other tubes is often described as the gain, specifically the amplification factor. 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 When they were recently on sale, I bought a 5751 (gain factor 70), 12AY7 (gain factor 40) and a 12AU7 (gain factor 17). A common substitution is to replace a 12AX7 with a 5751 or a 12AY7 to tame a preamp that tends to overdrive too easily, allowing you to get a better ‘clean’ sound out of your amp. I'll swap the V1 and V2 preamp tubes from the stock 12AX7 tubes and replace them with a 12AT7, 12AU7 When Fender tweed amps transitioned to mini triodes, the 12AY7/6072 was preferred for V1. With a 12AX7, the amp was plenty loud on 3 12AY7 or 6072 is a vacuum tube commonly used in preamplifier sections of electric guitar amplifiers. In many cases, these tubes are interchangeable and can easily be swapped. The phase inverter can use various circuits, and the gain of this position in the circuit can vary from less than 1 (split-load/cathodyne inverter by itself) to ~1/4 of Mu (long-tail pair, as used in most amps) to ~1/2 Mu (paraphase inverter, but just the first triode; second should have "no gain" or roughly the same result as the long-tail 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 them and noticed the same thing . Which do you prefer in your first preamp slot: 1. (By the way, the 12AT7 in a first gain stage is an awful tone generator in a guitar amp. You can use 12AV7 in place of 12AX7, 12AT7, 12AU7, and 12AY7 family of tubes. The most common reason for using a 12AY7 instead of the more common 12AX7 (ECC83) is that the 12AY7 has 45% of the gain of the 12AX7. Neither a 12AY7 nor a 12AX7. The 12AX7 tube is one of the pin-compatible tubes (5751, 12AT7, 12AY7, 12AV7, 12AU7) with differing gains. The 12AV7 has an equal mu (gain factor) as 12AY7 but has much higher conductance. 12AY7 is the low noise tube, high gain tube from this family, and even less were made than 12AX7. However, Diamond Blue Series Reverberockets are not high-gain amps. At least 12AX7 was a commercial tube, but 12AY7 was found in few products only. The 12DW7's are super low gain (about 80% less than a 12AX7. Has anyone tried this on a Super Reverb? Pros cons? Will this burnout one of the resistors because of the power difference? I usually play with the volume of the amp slightly below it star Very true. Merci de votre compréhension. Along with differences in gain come differences in output impedance and other factors. ) I ran one in my Ampeg Jet II for years before it finally gave out on me a few months ago. 1 day ago · I’m thinking of doing a tube swap for my pre amp tube from 12ax7 to 12ay7. The rest are pretty much fair game though, so have fun~! Jul 23, 2019 · Gain aside, a good 12AY7 can still sound very full, rich, and well-balanced, and offers a great way to achieve maximum headroom and minimum early-stage fizz from many preamps in other types of amps. It sounds great for harp, too! If you wanted a 12AY7 because it is to be used in a new design (maybe the amp in your other thread?), you may want to ask yourself if you simply need the approximate gain the 12AY7 would provide. Are you looking for the very best 12AY7 preamp tubes for your vacuum tube amplifier? This is the place to start. L’atelier et la boutique seront fermés du 16 au 19 février. The 12AY7 was used for V1 in Tweed Bassmans but a 12AX7 is often substituted for more gain in guitar applications. 12AV7 can dissipate the same amount of power as a 12AT7 tube. If so, which 12A*7 variant? What kind of guitar(s) 12AY7 / 6072: A lower-gain tube, offering 45% of the 12AX7’s gain, but provides a more dynamic and open sound. Check out the following tube reviews for guidance in getting the best possible tone out of your tube preamp. The gain is far too high for this amplifier's design. the standard 12ax7 tubes? This would be for a Twin Reverb RI. These are all pin compatible with one another, the only differences being the gain factor of each tube. A poll for you 5E3 owners. , so the amp's gain changes by something along that line. The JJ 12AY7 Preamp Vacuum Tube offers a low-gain option ideal for replacing a 12AX7, with gain characteristics positioned between the 12AT7 and 12AU7. I set the tone controls to noon and the volume to 3. 1x VintageNOS HitachiJapan (rare) BlackPlate TopD 12AY7 (<Gain 12AX7 Sub) ~ RodeClassic AKG Mic C12 U95 FenderAmp ~ 6072 Altv ~ soundelux, audio note l3 phono, fender 5f6a, ongaku 1x VintageNOS HitachiJapan (rare) BlackPlate TopD 12AY7 (<Gain 12AX7 Sub) ~ RodeClassic AKG Mic C12 U95 FenderAmp ~ 6072 Altv ~ soundelux, audio note l3 phono, fender 5f6a, ongaku The Groove Tubes GT-12AY7 Select Preamp Tube delivers outstanding and consistent performance when mixing and matching in order to get a signature tone from your amp. The high gain factor and the dual-triode configuration allow the tube amp designer to build an amplifier with fewer components. The following chart shows the different amount of gain for each of the tubes: 12AX7 gain of 100 12AT7 gain of 60 12AY7 gain of 45 12AU7 gain of 19 So what does this mean? A 12AY7 in the V1 or V2 position, while low gain, might help quiet down a noisy amp or possibly clean up feedback issues. 12A-series etc, preamps RCA applications data for commonly used double triodes. A 12AX7 for more gain. From what I’ve read the 12ay7 is 50% gain of the 12ax7. 12AY7 The 12AY7 tube equivalent part number is 6072. Amongst all these tubes, 12AX7 has the highest voltage gain factor (mu) of 100. Some American designs similar to the 12AX7: 12AD7 (October 10, 1955 - 225mA heater - low hum) 12AT7 [4] (May 20, 1947, dual 6AB4, A v {\displaystyle A_ {v Learning when to use a 12ax7 vs 12at7 preamp tube can be a great decision for your sound. When they say gain do they mean volume? If you know about this stuff let me know. Re: 12AY7 vs 12AX7 12AY7, 12AT7, and even 12DW7 are usually decent lower-gain replacements for 12AX7's. Now my knowledge of this stuff you can put on the back of a postage stamp. iers. First amp, 1977 Deluxe Reverb. ou V1 Moins de gain donc plus de punch et de son clair (headroom). Going from a 12AX7 to a 12AT7 in the PI (phase inverter) will yield a change in output tube distortion, touch, and output dynamics in most amps. 12AX7=100 5751=70 12AT7=60 12AY7 or 6072=44 (tweed tone) 12AV7=41 And a word about vintage tubes. The 12 series tubes are swappable and change not just the output of the gain stage but the feel and breakup characteristics, and effect tone. 12AT7 is probably the closest, with a bit more gain than 12AY7. pdhdfp, c050n, rysx, j1q0sd, wsyq, gnedx5, 5emp, kcnln, eoodc, 2k7q,