12ax7a equivalent. 4,50 $ Russian 6N1P tube audiophile double triode . If you own a tube amp, there’s a good chance it has one or more 12Ax7 tubes running the preamp section. Whether you want to refresh a vintage tube amp or upgrade to a new one, the Sovtek tube will rise to the occasion. Is there a single triode in 7 or 9 pin package or a twin triode in a 9 pin package, that is an electrical equivalent to a 6SL7? The way a 6CG7 is equivalent to a 6SN7. This tube is sometimes called the equivalent for 6DJ8/ECC88 or 6922/E88CC. 12AX7 - ECC83, 7025, ECC803, E83CC, 6681 (YOU SHOULD NOT USE THIS TUBE IN A RAVEN AUDIO AVIAN SERIES INTEGRATED!) * 12AT7 - ECC81, 6201, 6679, 6060 12AY7 - 6072 12AV7 - 5965 12AU7 - ECC82, 5963, 5814, 6189. 2 Watt 75 V Htr to K versus 100 V . Now after 30-40 hours' use they've broken in 12AU7 is much closer to 6922 but not the same. ATES denotes the "The most significant difference between the two is that 6N2P has its two filament elements connected in parallel, unlike the series filament connection of the 12AX7, and it is thus only possible to operate it from a 6. [/quote] The 12AX7 can be run as either 6v or 12v heaters. Cart. The larger plate boxes in 12BH7 tubes are more prone to microphonics. Best 12AX7 type tube I've heard. Hoffman Amplifiers Tube Amp Forum, Which Octal equiv. Here are some of the most common ones: 12au7 equivalents: 12au7A ECC82 ECC802 E82CC 5814 5814A 13d5 6189 7316 6680 CV4003 ECC186 There is absolutely no reason whatsoever not to get quality vintage 12AX7s. The purpose of this comparison is simply to provide guitar players with a frame of reference to help in finding the best current production 12AX7 for their needs. They all ar Finding the right 12AX7-compatible tube for your audio equipment can significantly impact the The tube operates with a filament voltage of 6. 2 Meg Ohm Many good circuits will not push any of these to the max limits, others will. I need to mod a circuit to be smaller. 3v heaters The 12AU7 and its variants are miniature nine-pin (B9A base) medium-gain dual-triode vacuum tubes. See reviews. Radio tubes are valves. Right now I have a GE long grey plate D getter, a GE 12AX7A short grey plate halo getter, a CBS Hytron 12AX7A long grey plate halo getter, a GE 7025 short grey plate halo getter, a Matsushita 12AX7 short grey plate halo getter, and an RCA long black plate square getter all from the 50s Manufacturers like Fender, Vox, Marshall, and many others have used the 12AX7 extensively, contributing to the distinctive sound of electric guitars in rock and roll, blues, and other music genres. 12ax7 is high gain low current 1/15 of 6922. Quick view-10%. A separate filament transformer was used on the switching box to simultaneously heat all six comparison tube filaments without overheating the amplifier's power transformer. If you only need a single triode they are excellent sounding because of the cylindrical plate. Rated 5 / 5 based on 6 reviews. I have a stock of them because they tend to cost less. : 250 Vp versus 330 Vp 1 Watt versus 1. Recomended products. In stock: Near equivalent: 12AX7, ECC83 Cart. Steve Hoffman Music Forums. FlaCharlie Super Member. 3V heater voltage and would need a different wiring than stock 12AX7’s. These are usually found on Telefunken brand tubes only. 00 Mullards. Colomor imported and distributed foreign valves. Due to the fact that instead of the expensive (although aesthetically very 5814 is an industrial equivalent number for 12AU7. Be sure to look for reviews to help you find the best 12AT7 preamp tubeMore Details Tube: Replacement: Tube: Replacement: 12A6 12AD6 12AE6 12AE6A 12AE10 12AF3 12AF6 12AG6 12AT6 12AT6A 12AT7 12AU6 12AU6A 12AU7 12AV6 12AV6A 12AX4GT 12AX4GTA 12AX4GTB Presently, all sorts of vacuum tubes exist but ECC83S and 12AX7 stand out from the rest in terms of prevalence. After testing the LND150 Mosfets in my tube heads, I decided to craft a more usable solution. Due to the fact that instead of the expensive (although aesthetically very beautiful) aluminum housing of the "tube", the LE version uses a transparent heat shrink, it was We use 12au7 tubes for our linestage preamps, and 12at7 tubes for our phono preamp. The majority of the offerings are of contemporary Chinese or Russian origin and deceptively sold as rare vintage tubes, they are often marked with “military specifications” or they are gold pinned despite their 5755 is a little lower rated than 12AX7A for some things, so some checking needed for an ampl. The 12AX7 is a high impedance amplifier triode and equivalent to the Mullard ECC83 where full details can be found. ECC83 tubes manufactured by The 12AX7 tube is one of the pin-compatible tubes (5751, 12AT7, 12AY7, 12AV7, 12AU7) with The 12AX7 is the most common member of what eventually became a large family of twin The purpose of this comparison is simply to provide guitar players with a frame of reference to The purpose of this comparison is simply to provide guitar players with a frame of reference to Ideally, every 12AX7 should yield the same gain when placed in the same circuit; however, in The 12AX7 and 12AX7A can both be used with 6 volt. Britain" right on them) but re-branded GE. This tube has a spiral wound filament intended to reduce hum. My question is can I use a 12ax7 in place of the 7247 or do I need to change some resistors. Using JJ E83CC, really like these! Detailed, quiet, with deep bass. You're going to be mighty unhappy if you do that. We find this incorrectly! [/size] [size=x-small] Unfortunately will the notion "equivalent" not be interpreted the same by everybody. Since 12BH7 is a high current driver, the internal components are much bigger than other small-signal tubes like 12AX7. . 12AX7 has 12-volt heaters. Unsurprisingly, it’s not uncommon for people to feel confused after seeing the similarities between the tubes which lead to many discussions 5751 - This is the "milspec" version of the 12AX7, but is also slightly different. Tung-Sol 12AX7 New Production Preamp Vacuum Tube. SKU code: 12ax7jj. As well, this tube's low gain make it a great choice for tube preamps in hi-fi stereo systems. Pin 9 is the center heater tap. 6Ж1П (6J1P) 6AK5, 6F32, EF95: 6Ж1П-Е (6J1P-E) 5654: 6Ж2П (6J2P) 6AS6, 5725: 6Ж3 (6J3) 6SH7: 6Ж3П (6J3P) 6AG5, EF96: 6Ж4 (6J4) 6AC7: 6Ж4П (6J4P) 6AU6A, EF94, 7543: 6Ж5П (6J5P) 6AH6: 6Ж9П (6J9P) E180F, 6688: 6Ж11П (6J11P) E280F: A custom 12AX7 switching box was constructed to allow for a quick switch comparison of six tubes at a time while plugged into the V1 socket of a Marshall JCM800 2203 guitar amplifier. The 12AT7 also has a gain factor of 70, but since the plate resistance is different, the 5751 is closer to the 12AX7. Of these three, the 12AU7 provides the least amount of gain. Retrovert AK Subscriber. Substitutes may be used freely for the extreme majority of all circuits. The high amplification factor of 100 has made the 12AX7A an absolute icon in the realm of tube amplifiers over time. It is used in pre-amplification cascades on The best 12AX7 tubes for almost no money For a newcomer it is not easy to navigate among NOS tubes that are available through Ebay or similar sites. Home Forums > Discussions > Audio but seemingly the same tube/parts as the Tele ECC803S), wondered if there was an equivalent 'E81CC/ECC801S' version, seems not. PLEASE NOTE: I've found a bunch of GE 12AX7's and 12AU7's that are really Mullards (with the "Made in Gt. ) will a 12ax7 sub for 12dw7/7247 ? I recently bought a bogen pa amp and it uses both 12ax7's and 7247's in the preamp. It belongs to a large family of dual-triode vacuum tubes which share the same pinout (RETMA 9A). Any help is greatly appreciated. Also included in this comparison are direct substitutes for the 12AX7 including: ECC83, ECC803, 7025 and 5751. One of the reasons for the 12AX7’s enduring popularity is its durability. Tube Depot carries a selection of 12AX7 / ECC83 / 7025 / CV4004 Pre Amp Vacuum Tubes. Related Post: Soviet/Russian Tubes Equivalents. Came across M. Sharp Cutoff Pentodes. $29. Both tubes see extensive use in amplifiers and share the same electrical specifications, pin configurations, etc. I would definitely try the JJ E83CC tubes! This is the European equivalent to 12AX7: ECC803, ECC803S E83CC. 12AU7 is also known in Europe under its Mullard–Philips tube designation ECC82. For those purposes, the Sovtek 7025/12AX7WA is the best 12AX7 tube you can buy for your guitar amp. Other 12AT7 tube equivalent part numbers are ECC81, 6201, CV4024, and CV455. Many other manufacturers have jumped on the bandwagon, copying, adopting, and modifying the design. Buying Options. 3 or 12. It's a clone of the legendary "Telefunken ECC803S", which purists hail as the best ever 12AX7. Designed to amplify low frequency voltage. Steve Hoffman, Jul 6, 2003 #2. Nov 17, 2016 #9 In loctals, 7F7 is the equivalent of the 6SL7 and 7B4 is equivalent of half a 12AX7. If you need to replace your 12Ax7 tubes, you The 12AU7 (Fig 1) is a preamp tube that’s part of the same class that includes the 12AX7 and the 12AT7. $23. $28. The 12AX7 is a 9-pin miniature, high-mu, twin triode. Equivalent to 5751, 7025 & ECC83. New & NOS tubes from Tung-Sol, Electro-Harmonix, JJ & more! Welcome to TubeDepot Tube 12AX7 or Röhre 12AX7 ID3730, Double Triode, Noval, 9 pin miniature (USA pico-9) B9A and Audio Frequency shown. 6J1 FAQs Conclusion If you need to change the 6J1, the American equivalent of the 6J1 is the 6AK5 or 6J1P-EV. 12AU7 will need to be configured for 6. Joined 2001. JJ 6V6S Power Vacuum Tube. To put it differently, the 12AY7 vacuum tube can often replace a 12AX7 in your amplifier and give you a rich, warm tone with lower gain than a 12AX7. The 6N2P-EV tube are a replacement for 12AX7 in any typical amp application, but they have 6. The 5751 has the same plate resistance as the 12AX7, but the gain factor is only 70 compared to 100 for the 12AX7. 12AX7 is an American While there might be minor differences - like the differences between versions of the 12AX7 - You can interchange a 12AX7 with 12AT7, 12AU7, 12AY7 or 5751 as they are all The type 5751 is a close relative to the 12AX7. Some of these equivalents can be much quieter, built for piston engine aircraft or field radio use, so they can be well worth a try. 2014-08-21 5:31 pm #5 The 12Ax7 tube is by far the most popular preamp tube used in guitar amplifiers. 3V or 12. Various versions of the original which is the 12AX7 have been developed, including the 12AX7A. 12ax7 6j1 Tube Datasheet 6j1 Tube Upgrade 6j1 Tube Rolling 6J1 Tube Preamp 6N3 vs 6J1 Tube 6AK5 Tube Equivalent 6AK5 vs. 95 Subscribe & Save. 00. It's equivalent to Seeking to try different 12AT7 NOS tube and 12AT7-substitutes (not 12ax7 or Log in or Sign up. BAT´s Victor in his 50SE is running four systems in parallel for each phase at 65 mA (save side, 16mA per section at approx. Would parallel sections of a 12AX7 or 12AT7 work? I can make some changes but I want a Like the 12AX7, this is not a hassle since virtually all hi-fi tube amps are of the parallel filament design. Because of this it is rarely used in guitar preamps and is much more commonly found in the reverb section of Buy JJ 12AX7 preamp tubes in Australia for premium sound quality in guitar amps and hi-fi systems. Originally designed as an audio specific dual triode with low noise and microphonics. their operating currents are similar. This is the "milspec" version of the 12AX7, but is also slightly different. Other 12AU7 tube equivalent part numbers are ECC82, 5814, 6189, and CV4003More Details 6eu7 sounds basically the same as their 12ax7 counter parts. 100 Volt plate voltage) to get a plate resistance of 200 Ohm and a tranconductance of 72 mA/V. So, for like $3. 2 Meg Ohm 12AX7 long plate and 12AX7A: Plate 1. 2 Watt, Grid resistor 2. The early RCA version has ribbed flat black plates with a top getter and a white label. The anodes are folded and stitch on one side. This is the "premium" version of the European 12AX7. Quantity Image Name Price; 12AX7 ECC83s 7025 JJ Electronics $25. 12AX7 Basics. I'm using a Yaqin MS-23B tubed phono preamp that uses two 12AX7 tubes. IOW, the European substitute. It belongs to a large family of dual triode vacuum tubes which share the petter Hello tube gurus, the 6H30 is 4 Watt per system but you can run the tube up to 6 Watt per system, beyond that the plates will glow. In other words, the same tube. I am asking simply to learn more about the tubes as I am learning how to repair tube amps and radios. Quick view. Member. This flange provides additional heat sinking and a point to attach the support. You don't want to do that. Pins 4 & 5 have to be The 12AX7 (ECC83) vacuum tube was invented over 70 years ago and is still an absolute 12AX7 and ECC83 tubes are identical and are directly interchangeable. 7025 The "low noise" version of the 12AX7. 6DJ8 has 6-volt heaters. This is a Light Edition version of the hit solid-state functional analog of the 12AX7 – 12AX7 Warm Stone tube! The only difference between the LE version and the usual 12AX7 Warm Stone tube is solely in appearance. My understanding is that if the 6N2P-EV is an equivalent, 12AX7: Plate 1 Watt, Grid resistor 2. The only difference between the LE version and the usual 12AX7 Warm Stone tube is solely in appearance. Mullard 12AX7 / ECC83 New Production Preamp Vacuum Tube. This is a Light Edition version of the hit solid-state functional analog of the 12AX7 – 12AX7 Warm Stone tube!. Pins 4 & 5 have to be connected together and used with pin 9 to be used as 6 volt. Durability and Longevity. The larger plate boxes in 12BH7 house large cathode, which can emit more electrons. There are many 12AX7-type tubes with different type codes such as ECC83, 7025, etc. The 6eu7 was designed to be more quiet I guess than the original 12ax7. High reliability, long life non less 5000 hours. 5751. But there are many “equivalent” tubes that can be used in these positions. Direct Replacement or Higher Quality. Last edited: 2014-08-21 5:15 pm. And I can't remember off the top of my head if the other connections are the same either. Compared to the JJ tubes, the Sovtek sound dark and veiled which I was surprised. Below is our current selection of 12AT7 vacuum tubes. smoking-amp. Pretty boring as a description goes. Was using Sovtek 12AX7-LPS which I thought sounded very nice. Sovtek 12AX7WA Preamp Vacuum Tube | The 12AX7 and 12AX7A can both be used with 6 volt. As always, use what The 12AX7, 12AT7, and 12AU7 all belong to the same family of nine contact, twin This is the European equivalent to 12AX7: ECC803, ECC803S E83CC. [quote author="Tubemooley"]No. The 6SF5 is the octal equivalent of one half of a 12AX7. 6AK5 variants include 6AK5W, 5654, and Western Electric 402A. 95. I have the adapter to go from 6eu7 to 12ax7 and find them very similar in sound on the same system. ECC82, ECC802, E80CC 6J1 Tube Equivalent 6j1P 6j1 Tube vs. Changing from 12AX7 to 5751 also made an equally profound change to presentation. DW. I've just read that ECC88/6DJ8 is an equivalent for (and less noisy than) 12AX7/ECC83, and so ideal for use in phono stages. 6V (in the 12AX7A While the triode originally developed by RCA bears the name 12AX7 (ECC83), newer A common substitution is to replace a 12AX7 with a 5751 or a 12AY7 to tame a preamp that ECC83: This is the identical European equivalent of the 12AX7. Pair USED E81CC ECC81 Triple 12AX7WS WarmStone LE – 12AX7 tubes solid-state equivalents Features overview. Equivalent: 6DJ8, ECC88, 6922. Amplification factor is Outstanding tube. 12AX7A vs. There are no Soviet analogs to 12au7, 12at7, 12ay7 or 12ax7. for 12AX7 - 5751 - 12AT7 - 12AY7 - 12AV7 - 12AU7 - 12DW7 ? 12AX7A datasheet, 12AX7A triode equivalent, RCA, Features and benefits, Stock and price 12AX7 datasheet, 12AX7 triode equivalent, Ei-RC, Features and benefits, Stock and price 12AX7 Sensibly equivalent The 12AX7 high impedance amplifier triode was designed specifically for audio use and has a high amplification factor of 100. 3 volt, 300 mA filament supply (whereas a 12AX7 may be operated from either 6. however a 12AU7 will likely work ok in a 6922 circuit. 6 volts. Subscribe to our newsletter and receive a 10% off code for your next Old production General Electric "narrow plate" 12AT7 (left) and current production "long plate" Electro-Harmonix 12AT7 (right) 12AT7 (also known in Europe by the Mullard–Philips tube designation of ECC81) is a miniature nine-pin medium-gain (60) dual-triode vacuum tube popular in guitar amplifiers. The original American 12AX7 design was copied by many companies. As explained in Everything You Need to Know About 12AX7page; these tubes are really the same thing. 12AU7 (mu: 17): Released – October, 1946. [1] There are many equivalent tubes with different names, some identical, some designed for [size=x-small] Since some time there is a Russian tube on the American and West-European market with the code 6H1Pi that is translated 6N1P. 6N1P (original box) ORZEP. 6S33S-V Title: 12AX7 Author: Mullard Subject: FP-2012-06-10 Created Date: 6/10/2012 8:04:10 PM One of the most commonly found driver tubes found in push-pull vacuum tube audio power amplifiers is the 12AU7 preamp tube. 5751's have a lower gain factor than that of the 12AX7 was the US designation for it's consumer grade version of this tube. But the ECC88 & 12AX7/ECC83 are The European designation that is electronically equivalent to the 12AX7. 00 each I got brand new 1960's $50. The "S" on the ECC803S means "select" version. 12AX7 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. Omit pin 9 and use pins 4 & 5 only for 12 volt operation. RCA, GE, and Sylvania actually made most of these tubes, regardless of brand on the label. sbndk xfnot zyzzk mfeh xyiwg cbxr nhzfy lhhbwch cbiimk jmcrpx