Ecc81 vs ecc82. Iec-10M / Iec-Mullard 12AU7，市價約 5 - 10 K。 Iec 高性能特選管中，最負盛名的，就屬 12AU7 (而非 12AX7)。 音質準確、平衡，且壽命可達 20000 小時， 但產量本就很少，市面難尋。 4. Siemens E82CC 或 ECC82 ，市價約 3 - 5 K。 Advantages of ECC85 over ECC81? Components and Circuits No description has been added to this video. Darunter ist eine 12AU7 (ECC82), eine 12AT7 (ECC81) und der Rest 12AX7 (ECC83) – es handelt sich dabei um die Bauart. So they dont drive so hard as a 83 at the same gain. The 12au7 is a preamp tube that is part of a class that includes the 12ax7 and the 12at7. Was meint ihr, hat einer Erfahrung ? Ich will nix kaputt machen mich nervt aber die Sensibilität des Potis. Today ECC81 - ECC82 - ECC86 - ECC88 are the most popuar of those. Der Plan ist klar Thinking about getting the Best Gold Lion Vacuum Tube - Must Have! 12Ax7 Ecc83 12Au7 Ecc82 12At7 Ecc81 El84 Electron Tube Upd? Watch this first!Grab the best Valve Comparison of ECC81 ECC82 and ECC83 — overview and key information. The amp's output stage uses 4 EL84 per channel + 1 Ecc81 per channel. nicht so wohl in der Beschaltung, die für die 81/82 vorgesehen ist, weil die 81/82 deutlich mehr Strom treiben können (weswegen sie sich u. Die ECC85 ist nur mit 6,3V beheizbar und Pin 9 ist nicht Heizungsmitte sondern das Schirmblech. For ECC81 there is only average data published. The other thing is that ECC83 is a high-mu triode (mu = 100) while ECC82 is medium-mu (mu = 20). BUT is this danger for my preamp? The ECC82 is an exception as it has a coarsely wound grid (low μ), so does not attract many electrons despite its close grid-cathode spacing. Related Post: Soviet/Russian Tubes Equivalents 12AU7 (mu: 17): Released – October, 1946. JJ-ECC83S Generikum zu ECC803 von Telefunken. K. With 12AU7 (ECC82) about 55 volts. In television receivers the ECC82 was used as frame and line timebase multi-vibrators, AGC circuits and Tube ECC 81 or Röhre ECC81 ID402, Double Triode, Noval, 9 pin miniature (USA pico-9) B9A and VHF shown. In general, the JJ small signal tubes have a different construction than their classic counterparts- in the case of the ECC81, I have also noted significantly lower distortion than other ECC81, so I'm not surprised to hear the same thing about the ECC82. 再试几只前级小胆管：ECC81,ECC82及其补品管根据OCTAVE V110的厂家说明书，V6、V7可用一对ECC82或者ECC81。音乐信号从V5出来后，直接到V6，V7，分别推左、右声道的后级 再试几只前级小胆管：ECC81,ECC82及其补品管 ,Hiendy. They are rated at a gain factor of 60 vs a 12AU7 (aka ECC82) which is rated at 20. besser als Loop-Send-Röhre eignen). I tried it and it works fine. The twin Actually after writing post I googled more deeply and got some good posts about 12ax7 vs 12at7 differences. With 12AT7 (ECC81) about 95 volts. In the classic Mullard designs of the . The ECC83 high impedance amplifier triode was designed specifically for audio use and has a high amplification factor of 100. This valve is still found in today's designs of hi-fi audio amplifiers. In this application the oscillator triode would be the first to cease working. The ECC83 family We have the ECC81 ECC82 ECC83 was introduced specifically for audio applications way back in 1954 to replace the earlier 6SL7 octal based valves. equivalent) 6189 7316 6680 The 12AT7 Valve (same as the ECC81) is a small preamplifier valve. Tip: 12AU7 und 12AT7 können in der Regel durch 12AX7 Since I can't find the same charts showing operating points and expected distortion for other triodes like ECC88, ECC81, 5687, ECC182, etc. Scientist RRR Mi I just today found 3 telefunk ecc82 valves in a radio out in teh shed heh lucky me but my pre amp takes ecc88 does anyone know the major differences between these types of valve. Also if i was to put the 82 in my amp is there going to be any major catastrophes cheers What is the difference between a 12AX7 Valve and an ECC83 preamp valve?” Buy your ECC83 here. Then the shape, ie cylindrical vs rectangular vs parallel plate. Man kann sie also oft an Stelle der ECC83 verwenden, wenn der Headroom vergrößert werden soll. [4] This contrasts with the 6AB4/EC92 and 12AT7 /ECC81 which are both R. Hallo zusammen, kann man in der Vorstufe eines Röhrenamps (in meinem Fall ein Marshall Silver Jubilee) die erste ECC83 (von hinten gesehen ganz links) gegen eine ECC 82 oder eine ECC 81 tauschen? Was wird der Effekt sein? Hi can i use a ECC82 tube in a ECC83 preamp ? The ECC82 can handle higher voltages as a ECC83. Gold Aero measures 1650|1600 or 1900|1850 (of 2200 new) 12AT7 vs ECC81 reverses the trend (BIAS 10 vs 13), but also changes the target value from 4400 to 3250. This gives a quick indication that the tubes are basically working. You can see it the heaters light up. Unterschied: Spanngitterversion! 12AX7C von Groove Tubes = Shuguang 12AX7-A (B) also 6N2 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. Last updated: 18-Jan-2018 21:32 15 Feb 2026 ECC81 is available as Special Quality tube from Telefunken and is called ECC801S. It belongs to a large family of dual triode vacuum tubes which share the same pinout (EIA 9A), including in particular the very commonly used low- mu 12AU7 and high-mu 12AX7. Designed as audio and general purpose triodes, two independent valves exist in the envelope. Last updated: 18-Jan-2018 21:32 24 Nov 2025 ECC81 is available as Special Quality tube from Telefunken and is called ECC801S. I've built this stereo amp some years ago which I think it's a modified Fisher design, it works fine however I have a couple of Phillips ECC82 and RCA 12AU7 nos , which I would like to try instead of the Chinese ECC83-b I have now, so I'm guessing the biasing of the first triode + plate and The main factors are cathode material and temperature which determine the total emmission, and the ratio of grid to cathode distance vs plate to cathode distance ( or is it plate to grid ? ) which pretty well determines mu. then I guess we only have a very few data points to go by. I tried ECC81, does a good job, but need less gain for sure! Somebody told me that 83-81's are interchangeable but 83 and 82 are not. Author Topic: ECC81 instead of ECC83 which modifies is to be done as to achieve it ? (Read 18234 times) 0 Members and 1 Guest are viewing this topic. The 12AU7, on the other hand, is described as an "A. It the next chapter I will discuss the two tube families ECC81 und ECC82 and in which they differ from its stablemates In this post, we are going to look at one such example, the ecc82 vs 12au7 tubes. Andersrum: Eine ECC81 oder 82 läuft meist problemlos als Ersatz für eine ECC83, die ECC83 fühlt sich aber ggf. They all have different gain factors. Mullard describe the ECC83 as a high μ double triode, having separate cathodes, primarily intended for use as a resistance-coupled amplifier or phase inverter. Here are some of the most common ones: 12au7 equivalents: 12au7A ECC82 ECC802 E82CC 5814 5814A 13d5 (approx. a. We use 12au7 tubes for our linestage preamps, and 12at7 tubes for our phono preamp. . 12AT7s (aka ECC81) have a higher gain factor. Wonder why it didn't make it into the 9 pin world? Best regards! This post is made possible by the generous support of people like you and our sponsors: Parts Connexion Follow Ups Full Thread Follow Ups Re: JJ ECC82 vs. Equipment required : tube socket, 2 resistors, DC supply, voltmeter, AC or DC heater supply. ECC802S - fbaggins06:46:42 03/22/07 (3) Thanks - Paully13:48:05 03/22/07 (2) Re: Thanks - fbaggins14:17:24 03/22/07 (1) $28 at Boi for the 802S I believe - Paully16:38:24 03/22/07 (0) This exhibit is the Mullard ECC82. Die beiden "Schwesterchen", also ECC81 und ECC82 liefern bei unterschiedlicher Verstärkung höhere Ströme als die ECC83. Each half is sensibly equivalent to one EC90 triode. Yes I am interested, and till now I do not understand what advantage your talking about. simple tube DC tester ECC81 ECC82 ECC83 explained and compared with AVO VCM163 Thomas Scherrer OZ2CPU Teardown 6. Die 12AX7 ist definitiv die am weitesten verbreitete Röhre. What makes the ECC88 stand out among the others is the rather high transconductance of 12. The Achilles’ heel of the otherwise impressive ECC88 is that it draws twice as much grid current as the ECC81, and about eight times more than the ECC82 or ECC83! ECC81,ECC82,ECC83 versus ECC801S, ECC802S, ECC803S This text is mainly for ECC81 vs ECC801S. Usually no harm in that. I'm hoping you can help me identify these, and in general help me figure out: 1) How do you know when a tube is an ECC81/ECC82/ECC83? Note, I found the Telefunken ECC82 (12AU7) more disappointing and the Mullards or Bugle Boys worked better in most (not all) applications but that's a different story. Ecc82 statt ecc83 Die ECC85 ist mehr mit der ECC81 (oder wars die 82?) verwandt als mit der 83er. The pinout is shown on the left. A sample of two TUBE DRIVER An old Chandler with Mullard Ecc81 VS a new B. International shipping. If the voltage reads 250 the tube is completely dead. Haven't experimented with a 12AT7 yet to see if that balances out results. And what is the mu follower topology concerning? You would need to re-design the circuit if you wanted to use ECC88 in place of ECC83. Nov 11, 2009 · The ECC81 would work for the phase inverter, but wouldn't give the best crunch. Is this in a guitar amp? If that's the case, you could try 12AT7 (ECC81) or 12AU7 (ECC82). The 6SL7 type of valve has the same base as output valves such as the 6V6, 6L6, EL34 etc and were bulky, so the ECC8X family made a lower power, much smaller pre-amp valve. All good things are not possible to get simultaniously in one tube. Mar 29, 2010 · ECC82 and ECC83/81 interchangable? Guys, have quite expensive vintage amps and to increase headroom of input stage I want to put ECC82 tube instead of schematics' 83. Fully tested and 100% guaranteed. I've been trying to find come recommendations to upgrade a tube amp I just bought that has a stock 6N1. Ich würde die ECC85 nicht in einem Gitarrenverstärker einsetzen, da sie relativ teuer ist und 12AU7/ECC82 SYLVANIA シルバニア 1880A 12AT7WC/12AT7/ECC81 EH エレハモ 1927A GT-12AT7/12AT7/ECC81 1933A 12BH7A/12BH7/ECC99 東芝 1872A ECC83/12AX7 MARSHALL 1929A 12AU7/ECC82 トロナル TRONAL 1922A ECC83 ( 12AX7 ) UNISON RISEARCH ユニゾンリサーチ 日立製作所 真空管 12AU7 TEN 12BH7A 通信用 I've started going through them and one of the first things I've come across are some Telefunken tubes that could be ECC81/ECC82/ECC83 tubes, but have all the writing rubbed off. The ECC81 also makes an excellent phase splitter in modern audio applications. So high gain and low output impedeance, and low noise, and and. [3] Data sheets suggest an upper frequency limit of 30 kHz for the 12AU7/ECC82 and it is not described as a "special quality" device. If you want the amp cleaner I think a 12AY7 is a better choice because it sounds like a low gain 12ax7. The Mullard double triodes ECC81, ECC82 & ECC83 In response to emails asking about pin compatible valves for the classic audio double triodes we have produced this list. Reject limits have to be guessed by people who know how to do this. They post a link to an article that is dead, so I used the wayback machine to post it in Why bother with tube amps at all if the source is not a a turntable? ECC82's can sound good in a mu follower topology, I can post a schematic if you're interested. This exhibit looks to be new and carries the later Mullard logo that appeared during 1970. Oder doch den Amp gegen einen anderen tauschen????? Frohe Weihnachten Sven UBV Hi I have a Tube Technology Unisis Signature amp, which I plan to retube and would be grateful for some advice on choosing which brands/types of valves to use. com 影音俱樂部 Ich möchte nun endlich mein Röhrenverstärker Projekt starten und habe dazu meine Kiste Straßenfund der Wendezeit wieder ausgekramt. All selected and tested on the Amplitrex AT1000. The Noval base shares the same pinout with other popular ECC family tubes as the ECC83, ECC82, ECC81 or ECC85. F. See reviews Direct Replacement or Higher Quality ECC82, ECC802, E80CC Bonjour, Sur les ampli audio sont il compatble les tubes suivants: ECF80------ECF82 ECC81------ECC82-------ECC83 Peut on remplace l¡un pour autre,que diference ya t’il? Merci A+ The primary difference is the gain factor. can not be designed into one tube, unless you invest in very high heater power, and large size of the tube. Inside the amp are 4 Ecc83, two of which belong to the built in 12AU7 vs ECC82 listings show a similar issue (BIAS 24 vs 17), but the differences are smaller. We sell the world famous JJ version of this valve which is extremely high quality. 6N2P Kommt von Sovtek. Außerdem ist die ECC85 eine Hochfrequenz-Röhre (UKW!) und hat ein Abschirmblech zwischen den Systemen. more The 12AT7/ECC81 and 12AU7/ECC82 are different tubes with different operating curves. 3V heater which consumes only 300mA. 90 days warranty on tubes! Kann ich durch tauschen der 3 verbauten ECC83 gegen ECC82 oder gar ECC81 das Gain reduzieren? Der DIY Schrauber meint ja ohne es jemals ausprobiert zu haben. If it's a hi-fi amp of some kind, then I wouldn't try it. Röhren liebhaber. Butler with Siemens Ecc82MJT stratocaster with Lollar specialDR. 5 mS. Hi all, absolute beginner's question for a potential first tube project: Would the design of a push pull EL34 stereo amp with the following characteristics be worthwile ? -line input into one half of ECC83 as first stage -then one half of ECC82 as phase splitter -then EL34 push pull output The Mullard double triodes ECC81, ECC82 & ECC83 In response to emails asking about pin compatible valves for the classic audio double triodes we have produced this list. 6 days ago · ECC81,ECC82,ECC83 versus ECC801S, ECC802S, ECC803S This text is mainly for ECC81 vs ECC801S. An amplification factor of 17 is quoted, which is much lower than that for the pin compatible ECC83 at 100. They're both dual triodes and share the same basing, but they're different enough that it's pointless to compare their "sound" because they won't work optimally in the same circuits. 12AT7 Äquivalent zur ECC81… (siehe Liste LL-Versionen) 12AU7 Äquivalent zur ECC82… 12AX7 Äquivalent zur ECC83… 12AX7WA Generikum zur russ. double triode". Radio tubes are valves. 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. Question: if my guitar amp (old Echolette M40 -actually a PA amp) has 4 channels, can I put 4 different types of tubes, 1 in on each channel? ECC83 to ECC82 or ECC81 at VU meter General Vintage Technology Discussions I sell all kinds of pre amplifies tubes like 5755, ECC83, ECC82, ECC81, 6N2P-EV, 6N1P-EV, EF86, 6922, ECC88, 6DJ8, 6N3P-EV and also 5670 or ECC84 and WE310A. simple tube DC tester ECC81 ECC82 ECC83 explained and compared with AVO VCM163 Proyecto 1 - Amplificador a válvulas: (13) EL84 en lugar de 6V6 Preamp tube comparison. I read that there are ones that will fit but are not made for it due to various differences. But there are many “equivalent” tubes that can be used in these positions. The Mullard ECC81 was designed for RF use and is of medium impedance. devices operating up to VHF. Ich habe folgenden Text bei einem sehr bekannten Online-Röhren-Shop gelesen. Yep, ECC40, developed by Philips, was quite a remarkable double triode. It was used as a frequency changer in five station television sets. 12AU7 | ECC82 preamp vacuum tubes are in stock and ready to ship! Upgrade your tube amplifier and preamplifier now! Also find reviews and more. This is only a selection of some of the most famous long plate ECC83 tubes – so it is not a complete overview – and it is my humble take on giving you some basic sound descriptions to make tube rolling more predictable. 67K subscribers Subscribe ECC83 to ECC82 or ECC81 at VU meter General Vintage Technology Discussions 不堅持的話，買 ECC82 會便宜很多，約 3 - 5 K。 3. As the prefix 'E' indicates it has a 6. 2ock, qber, gamsx, p7nw, i6bl4, 50wy, bwf8, vjqky, hwl37, oxtu0,