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12ax7 comparison

The biggest difference between these power tubes is the amount of gain they will provide. The 12AX7 has a gain factor of 100, while the 12AT7 has 60. The 12AU7 has the smallest, at just 20. The lower gain of the 12AT7 and 12AU7 also allows them to have a higher headroom, which can provide a warmer and cleaner sound.

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TungSol 12AX7 is our go-to tube for guitar amps. Tung-Sol 12AX7 delivers good gain, but without washing out the fine details and textures. It is a great all-rounder. When in doubt, we start with Tung-Sol 12AX7. TungSol 12AX7 handles everything from vintage rock to a clean tone sound. All our Fender and Marshall Tube Sets use Tung-Sol 12AX7.

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By this scoring, the best tube overall is the Electro-Harmonics 12AX7. The best for THD is the Sino 12AX7, but wow does that filament glow bright for a second or so after switch on! If you want gain, go for a Sovtek 12AX7LPS or a Mullard 12AX7. For lowest microphonics, Tung Sol.

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Oh sh*t, yet another "VS" thread.... But seriously. I would really appreciate if you could share your experience in terms of preamp tubes. I am experi.

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12AX7 comparison at a glance Rated 0 - 5 where 0 is Unacceptable and 5 is Excellent Grey rows represent discontinued and unavailable tubes. Manufacturer Model Microphonics Noise(Hiss, Pop, Hum) Musical Detail and 12AX7.

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Genalex Gold Lion ECC83/B759 (12AX7) dual triode preamp tube with gold pins. Original Genalex Gold Lion ECC83/B759 tubes are considered among the best 12AX7 types ever made. They are hard to find and when they are available, they are expensive. They exhibit a large detailed soundstage that is sought after by discerning audiophiles who demand.

TungSol 12AX7 is our go-to tube for guitar amps. Tung-Sol 12AX7 delivers good gain, but without washing out the fine details and textures. It is a great all-rounder. When in doubt, we start with Tung-Sol 12AX7. TungSol 12AX7 handles everything from vintage rock to a clean tone sound. All our Fender and Marshall Tube Sets use Tung-Sol 12AX7. And three 12AX7 models were used to generate the plate voltage/current vs. grid voltage curves, the only change was to flip Loudthud's scope shot And, a comparison of Ayumi's model vs. Loudthud's: So it can be seen that not only do the models differ greatly from each other, none of them matches the.

A = 100 * [100kΩ / 100kΩ+48.4kΩ) = 67.4 for the 6N2P. A = 100 * [100kΩ / 100kΩ+50kΩ]) = 66.7 for the 12AX7. That's only 1% difference. And you could (and should) argue that I should have used the same plate current for each tube, regardless of the slight bias voltage difference, because the 6N2P had a slightly higher plate current which.

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Also included in this comparison are direct substitutes for the 12AX7 including: ECC83, ECC803, 7025 and 5751. 12AX7 Basics The 12AX7 is a.

Also included in this comparison are direct substitutes for the 12AX7 including: ECC83, ECC803, 7025 and 5751. 12AX7 Basics The 12AX7 is a 9-pin miniature, high-mu, twin triode. What does that mean? The 9-pin miniature part.

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12AX7 ECC83 7025. 12AX7 is a miniature dual triode tube with high voltage gain.The 12AX7 is a high-gain (typical gain factor 100), low plate current triode, and is therefore best suited for use in the preamplifier (input and mid-level) stages of audio amplifiers, guitar amps , mic preamps etc.

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Apr 11, 2013 - A comparison of some of the most popular 12AX7s currently being produced. Use this chart as a starting point to find which current production 12AX7 will work best for you. 2016 update.

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Shuguang voice of nature 12AX7-T vacuum tube Matched pair 100% Brand New. The price is for 1 pair(2 pcs), if you buy 2 pair(4 pcs), we will send the Factory full matched tubes to you. Declaration. All items guaranteed 100.

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I have recived a 12ax7B now its a matter of me burning them in and then comparing it with the other tubes. Overcloking is about the passion, not about how much you clock Overclocking is not about the pefromance gains, it is about the passion Overclocking is about the Fun, Enjoyment and Passion.

A Comparison of Current Production 12AX7 Tubes by Kurt Prange RCA and Sylvania first introduced the 12AX7 to the world in the late 1940’s. Today, it is by far the most common preamp tube used for electric guitar amplification and.

Hi guys, here is a short sound comparison of different preamp tubes in position V1.All these 4 preamp tubes have different gain stages, this can be used as o.

The next difference between these two tubes is their plate dissipation rating. The 12AX7 has a plate dissipation rating of 1.2 watts, while the 12AT7 is rated at 2.5 watts. This is important because it tells you how much power each tube can handle. The 12AX7 can only handle 1.2 watts of power before it would begin to fail.

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Here are some tubes that you can sub for 12AX7 tubes. Some of these can be found at a much cheaper NOS price than 12AX7s and are better. So don't get suicidal about the world running out of tubes just yet. 12AX7A ECC803S, E83CC, E803CC, 6L13 B759 12DF7 7025 12AD7 12DT7 12BZ7 7729 6681 7058.

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The 12AX7 is a high-impedance high-mu dual triode; The 12AY7 is a medium-mu tube designed for low level high-gain circuits (microphones, etc.). The 12AU7 is designed to push a bigger load (like a different gear on a bike), so it satisfies current-hungry circuits better. The closest thing (that's not a direct equivalent or alternate designator.

A = 100 * [100kΩ / 100kΩ+48.4kΩ) = 67.4 for the 6N2P. A = 100 * [100kΩ / 100kΩ+50kΩ]) = 66.7 for the 12AX7. That's only 1% difference. And you could (and should) argue that I should have used the same plate current for each tube, regardless of the slight bias voltage difference, because the 6N2P had a slightly higher plate current which.

Shuguang voice of nature 12AX7-T vacuum tube Matched pair 100% Brand New. The price is for 1 pair(2 pcs), if you buy 2 pair(4 pcs), we will send the Factory full matched tubes to you. Declaration. All items guaranteed 100.

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Myself. Most gear sounds best with RCA grey or black long plate 12AX7. I do not hear much difference in the gray or black long plate, but the black plate have a tendency to get noisy whereas the gray plate does not. For some reason a Telefunken 12AX7 ribbed plate sounds better in a Pioneer SX-34. The plate voltage is around 100 volts vs the RCA.

The advice of any one user, no matter how many types of tubes were tried, only apply to that particular user's gear and taste. That said, there are certain tubes that "tend" to be acceptable in a broad range of applications and to a broad range of listener taste. The 5751s discussed above fall in that category.

Here are some tubes that you can sub for 12AX7 tubes. Some of these can be found at a much cheaper NOS price than 12AX7s and are better. So don't get suicidal about the world running out of tubes just yet. 12AX7A ECC803S, E83CC, E803CC, 6L13 B759 12DF7 7025 12AD7 12DT7 12BZ7 7729 6681 7058. The biggest difference between these power tubes is the amount of gain they will provide. The 12AX7 has a gain factor of 100, while the 12AT7 has 60. The 12AU7 has the smallest, at just 20. The lower gain of the 12AT7 and 12AU7 also allows them to have a higher headroom, which can provide a warmer and cleaner sound.

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12ax7 tube comparison Home Forums Equipment Forums Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum) Thread starter phergus_25 Start date Nov 29, 2006 Nov 29, 2006 at 1:29 AM Thread Starter Post #1 of 3.

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By this scoring, the best tube overall is the Electro-Harmonics 12AX7. The best for THD is the Sino 12AX7, but wow does that filament glow bright for a second or so after switch on! If you want gain, go for a Sovtek 12AX7LPS or a Mullard 12AX7. For lowest microphonics, Tung Sol.

Also included in this comparison are direct substitutes for the 12AX7 including: ECC83, ECC803, 7025 and 5751. 12AX7 Basics The 12AX7 is a 9-pin miniature, high-mu, twin triode. What does that mean? The 9-pin miniature part.

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このマイクプリ、マイクだけでなく シンセやリズム・ マシンなどの音源系からエレキギターのライン入力用DIとしても 使用可能 です。 また、内蔵されている真空管は12AX7( 別名ECC83、7025)。多くのギター・ アンプ等でプリアンプ部に用いられる真空管であり、 比較的歪みやすい事が特徴の1.

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A centre tapped heater permits operation of the tube from a 6.3V or a 12.6V heater supply. The forever 12AX7 tube - JFET equivalent of 12AX7 vacuum tube.Price is shown per pair. Has the electrical characteristics equivalent to a vacuum 12AX7 tube, sans the wear-out...

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Myself. Most gear sounds best with RCA grey or black long plate 12AX7. I do not hear much difference in the gray or black long plate, but the black plate have a tendency to get noisy whereas the gray plate does not. For some reason a Telefunken 12AX7 ribbed plate sounds better in a Pioneer SX-34. The plate voltage is around 100 volts vs the RCA.

After the original 12AX7, additional variants were issued with various industrial numbers (including the 7025) as well the 12AX7A. If you look closely at all the sheets, all conditions listed for the 12AX7 are identical to the 12AX7A and the 7025. The only claimed changes are lowered hum, lowered noise and microphonics (in some sheets).

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このマイクプリ、マイクだけでなく シンセやリズム・ マシンなどの音源系からエレキギターのライン入力用DIとしても 使用可能 です。 また、内蔵されている真空管は12AX7( 別名ECC83、7025)。多くのギター・ アンプ等でプリアンプ部に用いられる真空管であり、 比較的歪みやすい事が特徴の1.

12ax7 tube comparison Home Forums Equipment Forums Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum) Thread starter phergus_25 Start date Nov 29, 2006 Nov 29, 2006 at 1:29 AM Thread Starter Post #1 of 3.

12AX7、12AT7、12AU7の違い. みな、ピンアサインは一緒です。. どういう風に特性が違うのか調べてみました。. 一応全て同じメーカーのデータシートを参考にしました。. (RCAという会社). といったところです。. 12AU7の方が有利のように思えてきました。..

This 12AX7 amplifier tube by JJ Electronics offers good leeway for cleaner headroom in comparison to 12AX7s with higher gain. On testing its overdrive capacity this 12AX7 makes the amp deliver crystal clear transparent distortion characterized by well-proportioned mids and lows.

Anyway, in the following comparison charts, I used Loudthud's great scope trace as the reference. And three 12AX7 models were used to generate the plate voltage/current vs. grid voltage curves, the only change was to flip Loudthud's scope shot around, so the coordinates match up. First, the the plate voltage traces (with plate resistor of 100k. And three 12AX7 models were used to generate the plate voltage/current vs. grid voltage curves, the only change was to flip Loudthud's scope shot And, a comparison of Ayumi's model vs. Loudthud's: So it can be seen that not only do the models differ greatly from each other, none of them matches the.

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12AX7 Comparison of Current Made Tubes 12AX7 Tube Diagram 3PDT Daughter Board Guide 6146 Family of Vacuum Tubes 6L6GC Comparison of Current Made Tubes 6L6GC Tube Diagram Accutronics Products and.

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Also included in this comparison are direct substitutes for the 12AX7 including: ECC83, ECC803, 7025 and 5751. 12AX7 Basics The 12AX7 is a 9-pin miniature, high-mu, twin triode. What does that mean? The 9-pin miniature part.

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After the original 12AX7, additional variants were issued with various industrial numbers (including the 7025) as well the 12AX7A. If you look closely at all the sheets, all conditions listed for the 12AX7 are identical to the 12AX7A and the 7025. The only claimed changes are lowered hum, lowered noise and microphonics (in some sheets).

12AX7、12AT7、12AU7の違い. みな、ピンアサインは一緒です。. どういう風に特性が違うのか調べてみました。. 一応全て同じメーカーのデータシートを参考にしました。. (RCAという会社). といったところです。. 12AU7の方が有利のように思えてきました。..

12ax7 vs 5751. hi all, i need some advice. i`m very new to tube amplifiers and i`ve been doing some tube rolling. i currently have a pair of grant fidelity matched psvane 12ax7t`s in my amp which sound fantastic.

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After the original 12AX7, additional variants were issued with various industrial numbers (including the 7025) as well the 12AX7A. If you look closely at all the sheets, all conditions listed for the 12AX7 are identical to the 12AX7A and the 7025. The only claimed changes are lowered hum, lowered noise and microphonics (in some sheets).

Tube to Change. With the thumb and forefinger on one hand, hold the little circuit board that the tube socket is attached to. Grasp the tube you’re replacing firmly yet gently with. Apr 11, 2013 - A comparison of some of the most popular 12AX7s currently being produced. Use this chart as a starting point to find which current production 12AX7 will work best for you. 2016 update.

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このマイクプリ、マイクだけでなく シンセやリズム・ マシンなどの音源系からエレキギターのライン入力用DIとしても 使用可能 です。 また、内蔵されている真空管は12AX7( 別名ECC83、7025)。多くのギター・ アンプ等でプリアンプ部に用いられる真空管であり、 比較的歪みやすい事が特徴の1.

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A = 100 * [100kΩ / 100kΩ+48.4kΩ) = 67.4 for the 6N2P. A = 100 * [100kΩ / 100kΩ+50kΩ]) = 66.7 for the 12AX7. That's only 1% difference. And you could (and should) argue that I should have used the same plate current for each tube, regardless of the slight bias voltage difference, because the 6N2P had a slightly higher plate current which.

Svetlana 12AX7 - For several years the original Svetlana 12AX7 tube from St. Petersburg (Winged "C"/SED) tried to develop a good 12AX7 and mostly failed. The current production Svetlana is a New Sensor product and is a member of 12AX7 -EH and Tung-Sol 12AX7 family.

Apr 11, 2013 - A comparison of some of the most popular 12AX7s currently being produced. Use this chart as a starting point to find which current production 12AX7 will work best for you. 2016 update.

The 12AX7 was developed by Radio Corporation of America (RCA) at their Harrison, New Jersey factory. The factory site has a long and fascinating history in vacuum tube manufacture. Edison Light Works had been manufacturing light bulbs on the site since 1882, just six years after Edison perfected the incandescent bulb.

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The main differences between 12AX7 vs 12AT7 are: The 12AX7 has a gain output of 100, whereas the 12AT7 has a gain output of 60. The 12AX7’s high gain can make it prone to clipping and distortion, whereas the 12AT7 can give you more headroom. The 12AX7 is mostly used in the preamp section of guitar amplifiers to boost the pickup signal.

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Title 12AX7 Author General Electric Subject JA-FP-2001-01-20 Created Date 1/20/2001 10:41:07 PM.

真空管ですが、例えばですが12AX7の仕様のところを、12AU7など他の真空管と間違えた(またその逆)KT88の仕様のところを、EL34など他の真空管と間違えた(またその逆) 真空管そのものに影響を及ぼすかと思いますが、アンプ本体への影響はどの様になりますか?間違えないことが前提ですが.

Also included in this comparison are direct substitutes for the 12AX7 including: ECC83, ECC803, 7025 and 5751. 12AX7 Basics The 12AX7 is a 9-pin miniature, high-mu, twin triode. What does that mean? The 9-pin miniature part.

After the original 12AX7, additional variants were issued with various industrial numbers (including the 7025) as well the 12AX7A. If you look closely at all the sheets, all conditions listed for the 12AX7 are identical to the 12AX7A and the 7025. The only claimed changes are lowered hum, lowered noise and microphonics (in some sheets).

And three 12AX7 models were used to generate the plate voltage/current vs. grid voltage curves, the only change was to flip Loudthud's scope shot And, a comparison of Ayumi's model vs. Loudthud's: So it can be seen that not only do the models differ greatly from each other, none of them matches the.

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12AT7. Also known as ECC81, 12AT7 is a pretty common phase inverter tube. But it has a slightly lower voltage than the standard 12AX7. It’s mostly used for so-called push-pull amplifier circuits. Not to get too geeky, but push-pull circuitry is.

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12ax7_comparison_of_current_made_tubes_2016_1.pdf 215.3 KB · Views: 5 Robert Herndon Ambassador of Tone Local time 3:31 PM Joined Dec 6, 2016 Messages 32,897 Reaction score 50,636 Location Lake Arrowhead #39.

2 Vintage Brimar UK 12ax7 ECC83 Vacuum Tubes Guaranteed! $68.88. 0 bids. $10.50 shipping. ... Brimar ECC83 12AX7 Long Plate Square Getter Valve Tube Used Tested (V24). 6550A-HARMA RETRO MARSHALL VBA 400 OCTET Harma Valves This is a specially selected set of 8 output valves for the Marshall VBA 400 bass head.The Harma 6550A Retro is.

Svetlana 12AX7 - For several years the original Svetlana 12AX7 tube from St. Petersburg (Winged "C"/SED) tried to develop a good 12AX7 and mostly failed. The current production Svetlana is a New Sensor product and is a member of 12AX7 -EH and Tung-Sol 12AX7 family.

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Mesa Boogie 12AX7 Preamp Tube 750150F Valve Tube - Musicians Cart,Vacuum Tube - Tube Set, 12AX7 Set, One EH and One JJ ,AmpTubes Preamp 12AX7 Sample Set,Groove Tubes (グルーブチューブ) GT-12AX7-R2 GT.

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I was wondering if the 12AX7 and 12AX7A are interchangeable? If there any advantage of using one over the... RCA 12AX7 '50s black-plate exhibits more clarity and earlier breakup, compared to the RCA short-plate '60s 12AX7A, to name a few obvious sonic characteristics. New listingVACUUM TUBE Raytheon 12AX7A GRAY PLATE, RING GETTER - TESTED - NOS. 1 Excellent super strong raytheon 3 mica black plate 5751 / 12ax7 tube #E22.Review: Comparison of 5751 Tubes Raytheon, Sylvania, and more Tweak., Sylvania, and more Tweak.

The 12AX7 is a high-impedance high-mu dual triode; The 12AY7 is a medium-mu tube designed for low level high-gain circuits (microphones, etc.). The 12AU7 is designed to push a bigger load (like a different gear on a bike), so it satisfies current-hungry circuits better. The closest thing (that's not a direct equivalent or alternate designator.

12AX7-compatible tubes Many other twin-triode tubes are pin-compatible with the 12AX7. Not all are suited for the job. The 12AX7 is designed for high gain–lots of amplification. That’s why it’s used in so many guitar amps. It’s.

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The "S" on the ECC803S means "select" version. These are usually found on Telefunken brand tubes only. 5751. This is the "milspec" version of the 12AX7, but is also slightly different. The 5751 has the same plate resistance as the 12AX7, but the gain factor is only 70 compared to 100 for the 12AX7. The 12AT7 also has a gain factor of 70, but.

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The biggest difference between these power tubes is the amount of gain they will provide. The 12AX7 has a gain factor of 100, while the 12AT7 has 60. The 12AU7 has the smallest, at just 20. The lower gain of the 12AT7 and 12AU7 also allows them to have a higher headroom, which can provide a warmer and cleaner sound.

Check Price. Genalex Gold Lion 12AT7 Tube. Check Price. 1. Tung-Sol 12AT7 6201 Preamp Tube (Editor’s Choice) If you’re shopping for a versatile yet supremely affordable 12AT7 preamp tube, then the Tung-Sol 12AT7 is your best bet. This 12AT/6201 preamp vacuum tube from Tung-Sol comes with short, robust plates that go a long way in reducing.

12AX7 is made exclusively at the Svetlana Electron Devices factory in St. Petersburg, Russia, and is marketed worldwide by ... Nominal dimensions : Height of glass envelope 46.5 mm (1.835 inches) Diameter of glass envelope 22 mm (0.867 inches) Overall height 55.5 mm (2.180 inches) Net weight 15 grams.

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The next difference between these two tubes is their plate dissipation rating. The 12AX7 has a plate dissipation rating of 1.2 watts, while the 12AT7 is rated at 2.5 watts. This is important because it tells you how much power each tube can handle. The 12AX7 can only handle 1.2 watts of power before it would begin to fail.

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The advice of any one user, no matter how many types of tubes were tried, only apply to that particular user's gear and taste. That said, there are certain tubes that "tend" to be acceptable in a broad range of applications and to a broad range of listener taste. The 5751s discussed above fall in that category.

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