Ecc83s vs ecc83. It provides a milder sound than the regular ECC83.

Ecc83s vs ecc83 This is one of the best 12AX7s for any guitar amp. Sujets les plus consultés. Recorded into Logic Pro X. 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. Genalex 12AX7 T-12AX7-GEN: Gain rated at There is a large gap between pins 1 and 9 to ensure that the tube can 12AX7 (also known as ECC83 [1]) is a miniature dual-triode vacuum tube with high voltage gain. The lowest noise ECC83 I have on my bench is the Mazda NOS. normal short (14 mm) plates. . The 803S is based off of the Telefunken 803S; it has less gain than the 83S in most cases and a more neutral character, to my ears. 7025 was the designation used for a heavy duty version of the 12AX7. On the other side of the iron curtain, the USSR came up with a completely different design for the ECC83 Phase Inverter tubes can wear pretty quickly and if not replaced when they're ready to be it can affect your tone more than you think. Confusing, but there it is! One (12AX7) is the American designator and the other (ECC83) is the British. 3 V heater voltage at 300 mA heater current, or with both triodes connected using 12. Bezel / Jewels / Bulbs This gold pin Slovakian tube takes the characteristics of the plain pin 12AX7/ECC83 version and boosts them up a notch. During their history Mullard produced several 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. Whats the deal here? ECC83, 7025, CV4004 are the same tube as 12AX7. I like it better than NOS tubes like Ei, Telefunken and The ECC803S is a super-long plate (17mm- it's almost the entire length of the envelope) 12AX7, which is a bit brighter and and about 90% of the distortion potential of the The JJ ECC83 S is substantially different in construction from the other 12AX7 types considered here. Service/Hilfe Hier jetzt die JJ ECC83 Typen im Vergleich: Die ECC83S, würde ich als absolute Basic Röhre sehen die jeder habe sollte. I wanted to include this model in my list because it’s quite hey everyone, I didn't even realize JJ made such a tube and it seems to get some good reviews, especially when compared to their standard ECC83S which I remember in the amps I played sounded dull dark. At least from what I have seen and read. Email Password Confirm Password. E. TESLA ECC83S = TELEFUNKEN ECC803S. The ECC83 models are especially robust, with an operational lifespan of around 10,000 hours. 3. They all Philips and its subsidiaries (Mullard, Valvo etc) introduced the naming system that was adopted by most european manufacturers. Ecc802 / ECC83S vs. The ECC83 Gallery 12AX7 E83CC ECC803S 7025 : 5751 CV4004 CV492 B339 The Lorenz ECC83s sound very nice, too. Mullard 12AX7 / ECC83 New Production Preamp Vacuum Tube. 7[kOhm] bei 250[V] U(a) - bei der ECC83 beträgt der Datenblatt R(i) 62. 5[kOhm] bei ebenfalls 250[V] U(a)) - das ist also etwa der 8-fache Innenwiderstand einer ECC82 . amplifier. Didn't like them. This JJ-ECC83S preamp tube ships stock with Matchless HC-30's or at least it did in 2017. This recipe typically produces deep focused bass, clear articulate mids, and soft/compressed upper mids with a bit of air. NOS (New Old Stock) Electro Harmonix (EH) The first obvious difference was that the gain of the JJ ECC83S with gold pins was consistent and higher on these valves than the standard ECC83S. I will also detail long vs. Description: Double triod intended for use as A. HIFI-FORUM » Stereo » Elektronik » Röhrengeräte » ECC82 vs. 300/150 mA. They all have a mu of 100. RT001 - 12AX7A-C / ECC83 TAD Premium Selected This looks like a standard Chinese 9th that's been through TAD's Premium selection process. The JJ tube is made with an advanced technique known as “frame-grid construction” first pioneered by Telefunken. Some designs unbalance the plate resistors to off-set the gain difference and assume the tube will Not Be balanced. Complete dry signal. In this case I wanted to know how a modern tube would perform in terms of sound quality against an old Telefunken ECC83. To me, his record is without relief or dynamic, flat and dark. for example i just tried my miracle man steinberger - which i wasn't sure about previously - and its pure rawk. His In this article, we’ll concentrate on the ECC83 vs 12Ax7 tubes. Ecc803 : ECC82 vs. Logical question to ask too since the JJ ECC83S has a different internal construction than other 12AX7's / ECC83's. Is there any difference between the two? The new ones are a tab bit shorter than the There is a pretty significant difference between the 83S and the 803S. The tonal characteristics were easier to hear. The JJ ECC83S uses the anode construction pattern of the frame grid designed Telefunken ECC803S. Here is more information on different preamp tubes. The What follows is a reproduction of Matt Lachesky’s (Lachesky Amplifiers) excellent post on Marshall Amplifiers discussion forum in August 2011 describing his in-depth comparison of the physical characteristics or the Russian New Sensor reissue 12AX7 (ECC83) with the original Mullard ECC83 manufactured in Great Britain. Version Amélorée et tries des ECC83 JJ, remplace les ECC83S JJ Gold. I have a couple of the newer ECC83s on my shelf - better still is to ram a bit of chewing gum between the skirt and glass. Euro naming. Joined 2009. what's the Hi! I need some preamp tubes for a Peavey 5150 script logo, A Marshall JVM410h and a couple of Marshall Vintage Modern heads. This dual triode tube has been pivotal in defining the tone and character of guitar 欧洲名称ecc83中的第1个字母“e”表示将其归类为具有 6. Pseudo / E-mail Mot de passe. But those specs probably don't mean anything as related to the 1. Amp Parts & Covering. The 12AX7 tube is one of the pin-compatible tubes (5751, 12AT7, 12AY7, 12AV7, 12AU7) with differing gains. Menu. From $25. ECC83 heater may be wired for 6. The JJ ECC83 (12AX7) is a very popular choice among guitar players and musicians. The JJ ECC83S has a nice rounded sound which when distorted is very Yes - you are correct there. ECC83 was, it meant a low-noise version. 951970年製?Teslaと Does anyone actually know what the difference is, if any, between a FENDER GT-12AX7R and a FENDER GT-ECC83S. The JJ ECC803/12AX7 is a long plate tube based loosely around the ECC83S. I though Ruby tubes were Chinese though. Amongst all these tubes, 12AX7 has the highest voltage gain factor (mu) of 100. The internal structure in both is 100% identical. Glenn November 11, 2023 at 11:50 am | Permalink. $17. American VS. Though it is not a frame grid valve this design has many advantages when used in guitar amplifiers. File Size: 152Kbytes. short plate and gray vs. in the modded 5F1, due to the presence of the NFB I moved the FX Loop between V1a & V1b But talking about the Merlin's FX Loop, I'm thinking to a different schematic, where the FX Loop will be between the preamp and the PI or 1/2 (the send) on a stand alone preamp and 1/2 (the return) on a PA I was thinking about switching them out for ECC83s/EL34s, simply because my Laney GH100L is equipped with them and it is the greatest sounding amp I've ever heard, but its only single channel, doesn't work for stage work. This valve is still found in today's designs of hi-fi audio amplifiers. ECC83S / 12AX7, 7025 - gold; ECC83MG / 12AX7MG - gold; 5751 - gold; ECC802S - gold; ECC803S - gold; ECC832 - gold; E88CC / 6922, 6DJ8 - gold; ECC99 - gold; EF806S - gold; 6386LGP - gold; ECC82 (12AU7) and ECC83 (12AX7) for Hi-fi; 6N1P, 6SC7, 6SL7, 6SN7, and E88CC Valves and Tubes; Our Valve Brands Menu Toggle. What is the sonic difference between the JJ ECC83S (or the gold variant) and the the JJ ECC803S (or the gold 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. Developed around 1946 by RCA engineers [2] in Camden, New Jersey, under developmental number A-4522, it was released for public sale under the 12AX7 identifier on September 15, 1947. 2W as opposed to 1W. RT003 - ECC83-Cz TAD Premium Selected Almost certainly a JJ ECC83S that's been hand picked by TAD. There are also tubes that can substitute for 12AX7. 75): More prone to microphony than ECC83S or ECC83MG due to jj ecc83s vs old mullard ecc83 « Reply #2 on: December 23, 2007, 11:12:24 AM » the mullards respond very well with hotter pickups. The JJ 12AX7 ECC83s (sometimes called a 12AX7 and sometimes called an ECC83s. 6 伏加热器，当然，它可以通过接线在2种电压的任一电压下运行，在美国 ECC83S. See Options. Now TFK production is only a fraction of all ECC83/12AX7 ever made. Telefunken ECC803S and TESLA E83CC are the only two NOS FRAME GRID 'ECC83' types. ECC83 - European designation for 12AX7 12AX7 - The 12AX7 is a high-mu twin triode which operates in typical service as a class A amplifier, in the preamp stages of high fidelity, musical instrument, and public address amps, as well as professional line and microphone preamps, and many other audio I have a Ruby 12AX7 and a JJ ECC83S (same thing as a 12AX7) in front of me. I have one in my Tube Driver; just what it needed, much more manageable and immensely more musical. Rester connecté. FXamps " User Club "2 372K. 1mA) and relatively high anode voltage (150 to 200V). Download. Instinct tells me to focus my attention on the ECC83s in the phono stage, as they will need to be of good quality (I intend to add an mc step up transformer soon When examining the differences between the ECC83 vs 12AX7, you might initially be puzzled, as these terms often arise in discussions about guitar amplifiers. Edit: I'm pretty sure that the first number in the American system pertains to the heater voltage (6 volts versus 12, or 5 volts in the case of a 5AR4, etc), but apart from that, I'm stumped. Only one Signal Path- Gibson SG, Lava Coil, Orange OR 50, Sennheiser E609, Focusrite Scarlett. 12Ax7 (Fig 1) is merely the American name of A review of the JJ ECC83-S / 12AX7 Vacuum tube. All special tubes I've heard (as ECC803S or E83CC) do not really improve the sound quality. There are probably just as drastic differences between Sovtek's, EH's, Chinese, SED's, The highest, or standard level, comes from the ECC803S and the ECC83S. I have made some researches between the difference for the ecc83s and the ecc83 and it seems that ecc83s is if I can use the word more "aggressive" apparently typically used Are JJ ECC83 gold tubes good for preamp tubes in medium gain amps (Rock, Blues, Country, Smooth Jazz and Hard Rock) and Are they good for high gain amps (modern The ECC83S is a clone of a short plate Telefunken. I am mainly going to cover 12AX7/ECC83 and 5751 type pre-amp tubes and EL84/6BQ5 power tubes: since these are some of the most popular and in demand tubes for guitarists and audiophiles. Ecc803 +A-A: Autor. Wird unter anderem verwendet von Engl®, Hughes & Kettner®, Laney® uvm. In the lower register of guitar it produces a nice thump. The recipe I often prefer is a current production Mullard ECC83 is V1 and a JJ ECC803S everywhere else. Domestic US shipments between 1-7. These operational hours can, of course, vary depending on the ecc83 - recommended grid bias - 2V If the circuit in which the OP swapped the valves was carefully designed to work the 83 optimally (particularly re. Typical characteristic: Ua = 250 V Ug = -2 V Ia = 1,2 mA S = 1,6 mA/V Ri = 62,5 kΩ μ = 100. Each. If the Power tubes of ECC83 was the European designation for the 12AX7 -- the tubes were functionally identical. $29. After working with these tubes for several years we can confirm they do test more consistently and sound noticeably different than the standard ECC83S. ECC83 MG is 12AX7 with Mid-gain, which means fuller and richer mids achieved by medium long plate. Shoot out of 12AX7 preamp tubes (JJ-ECC83MG vs JJ-ECC83s). - <> between the pins. The truth is, there is no difference at all between them, and each one is interchangeable with the other. 75; JJ/Tesla ECC803S Gold Out of stock; Electro-Harmonix 12AX7 $27 JJ ECC83s / 12AX7 Preamp Vacuum Tube. Page: 7 Pages. Amp settings the same between preamp tube swaps. Ce sont les plus ECC83 is an older design audio (low) frequency twin triode. Tube ECC 83 or Röhre ECC83 ID411, Double Triode, Noval, 9 pin miniature (USA pico-9) B9A and Audio Frequency shown. The JJ 803S is one of my favourite current-production valves and the only one that favourably compares to my vintage Mullard ECC83's I must confess Matt Lachesky’s detailed autopsy of New Sensor’s “Reissue” Mullard 12AX7 and a genuine Mullard Blackburn ECC83 stirred my interest [see ‘Mullard ECC83 (12AX7) Reissue vs Original – A Physical Comparison’]. Different Pinout !! These are the gold pin version of the standard ECC83. 116. (both are accurate) is a well balanced colourful tube with strong lows & mids whilst also providing smooth highs, allowing for more clean head-room compared to some of the higher gain 12AX7s. Compared to the JJ ECC83-S this tube sounds a 5751 tube as alternative to ECC83/12AX7. 6V at 150mA. 2016-04-08 7:24 pm #4 2016-04-08 7:24 pm #4 SY said: That's not at all correct. The difference between long and short plate versions of those legends are clearly detectable and ECC83/12AX7 Page 1 of 4 ECC83 is A. Telefunken ECC83 long (17mm) smooth plates (on the left); EI ECC83K, well known among audiophiles as “short (14mm) smooth plate ECC83”, an extremely rare and surprisingly well sounding ECC83 / A Mullard ECC83 long plates, square getter, wrinkeled glass (MC1) sounds completely different, than a Telefunken ECC83 smooth plates – soon we will discuss that more in depth. Tube vs Solid-State – Why Do Tubes Sound Better? January 14, 2016; The TU-8300R “Red Amp” Tour January 7, 2016; The noise floor is better than the standard ECC83S / 12AX7 tube. There are many 12AX7-type tubes with different type codes such as ECC83, 7025, etc. 00:00 Blue Channel ECC83MG00:36 Blue Channel ECC83 Ist der Anodenwiderstand der Schaltung recht niederohmig (was bei einer für eine ECC82 ausgelegten Schaltung durchaus vorkommen kann, schließlich liegt ihr Datenblatt R(i) bei 7. Base: NOVAL Uf = 6,3/12,6 V If = ca. Equivalent vs Substitute. Tung-Sol 12AX7 New Production Preamp Vacuum Tube. (C'est la lampe la plus proche du jack guitare en général) Sévèrement triées et testées à l'atelier des Amplis. Sie klingt so wie sich wohl fast jeder eine Röhre vorstellt 12AX7 also known as ECC83S or 7025. All 3 Going through different types of current produced JJ Electronics Ecc83/12ax7 tubes, talk about them and see what options you have in a current production and What is the difference between the 'standard' ECC83 and the version with the 'long' plate ? With the exception of the box-plate Mullards, all the western European ECC83s were either long-plate or short-plate designs, that I am aware of. The next gain level comes in the form of the newly released ECC83 MG. While doing this exercise I All Tele’s ECC83 / 12AX7 are long (17 mm) plates vs. 00. Philips put the numbers in between the letters to identify SQ versions (ECC83 vs E83CC) whereas Telefunken added a '0' (ECC803S, EF806). Another Unisis user has recommended EI EL84 - these are about £5 each, so definitely worth a try. ECC83 mu is rated at 100 (very high). The solid internal rigid structure which is internally braced makes this valve very low in microphonics. It provides a milder sound than the regular ECC83. They don't really sound like a Telefunken much but they are very nice, especially in the midrange. richj . The high gain factor and the dual-triode configuration allow the tube amp I get best quietest peformance with ECC83 tubes configured as simple cathode follower preamp drive or filter aplications. Rzućmy za siebie okiem. $15. Can you the same for JJ ECC803 tubes compared to ECC83/12AX7 and to Telefunken ECC803. As Edge says, you're good to go. ECC803S ($15. For all intents amd purposes it's the same. Ausreichend Gain und ein warmer Ton. As explained in Everything You Need to Know About 12AX7 page; these tubes are really the same thing. Thank you. Asked Fender directly and could not get an answer there either? JJ's have been the ones most known to actually make a significant difference between low and high gain. It has a rather high internal resistance (approx. They are identical. I think (from memory) the original spec for the ECC803 vs. 95. Same halo getter, same plates, even the little details in the internal support structure are an exact match. Genalex ECC83 Gold Lion Standard Pin Out of stock; TAD 7025WA / 12AX7 Out of stock; JJ/Tesla ECC83S Gold Out of stock; Best Seller TungSol 12AX7 $25. But the 12AX7 and ECC83 are simply different nomenclature - just like 6BQ5/EL84. I'm wondering if they might be a good option as a pre-amp tube for my Croft Integrated amp. The 83S, to my ears is leaner sounding with more gain My favorite is the JJ ECC8 0 3S low-mid gain, long-plate tube; I have used it in my VOX AC15H1TV and AC4HW1 amps. Post Such an incredible quantity. Similar to a frame grid, like a 6DJ8 - 6922. 9 pounds usually ship FedEx Ground or USPS Priority Mail. Compared to the JJ ECC83-S this tube The V2 and V3 valves are ECC83s, but the V1 and the phase inverter valves are E83CCs Can anyone tell me what the difference is, and are the E83CCs better suited to V1/PI positions, ie. They all are equivalent to 12AX7 tubes. Browse: Home / Review – JJ ECC83-S / 12AX7. I actually think that it has slightly higher gain than the ECC83S. Order JJ ECC83-S / 12AX7 preamp vacuum tubes in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. JJ ECC83S / 12AX7 JJ Electronic. Hi everyone would just to say a few words about these valves ( tubes), was experimenting with reasonably priced ECC83 ( 12AX7) and came across the JJ Electronic models and had great success with their ECC83 models and with Gold pin variants- also with their Gold Pin 5751, also l tried The Gold Lion ECC83 Gold pin and a NOS Mullard M8137 this one valve Inside the amp are 4 Ecc83, two of which belong to the built in mm phono stage. JJ ECC83-S / 12AX7 Gold Preamp Vacuum Tube (5 Reviews) USD $‎32. It costs almost nothing but worthless. The Gold Pin JJ ECC83S is based on the same construction as the original ECC83S. Und: ECC802(S) und ECC803(S) haben gegenüber ECC82 und ECC83 eingeengte Toleranzen ihrer elektrischen Werte - wenn also die Schaltung wirklich keinen Schuß Pulver taugt, könnte es sein, daß I would go ahead and buy a good NOS or well screened ANOS 12at7 while they are still cheap. Radio tubes are valves. I will also get into Ecc83 is a European designation 12ax7 is an American one. Their ECC83S is pretty Video in which i compare modern and vintage tubesNOTE; Use hi quality speakers or headphones to listen to the samples. As I understand it the 5751 has the same pinout as a ECC83 but is lower noise and lower gain. harmonic distortion) then there is a very good chance that the pre amp will not operate as it should. JJ EL84 / 6BQ5 Power Vacuum Tube. All current production 12AX7 are a drop-in replacement for any of these types. 3 伏灯丝电压，第2个字母“c”表示小信号真空三极管，数字80–89 表示电子管座为微型9针封装。而美国名称 12ax7 将其归类为具有 12. This Telefunken number is nice anchor however! If we just guess, the worldwide quantity ever made was 1 Billion ECC83, this No doubt in my mind that tubes even as expensive as some may be can make the difference between wanting to buy a new amp or preamp or keeping the one you have and for the most part are a very cheap way to upgrade and they tend to last a very long time most likely much longer then you will have the component. There are theoretical reasons for it. more Most guitar amps use 12AX7/ECC83 preamp tubes exclusively, so this list is almost exclusively composed of those tubes. F. 70,000+ ohms) and is usually used with a very low standing current draw (approx. Mot de passe oublié ? Connexion La JJ ECC83s est une 12 AX7 a plus faible gain qui est parfaite si on souhaite adoucir un préamp brouillon ou The subject of the sound portraitures down below based only on long plate tubes made bevore 1960 – with short plates made in the 60ties (last century) the outcome would be different regarding Amperex and Mullard as also Siemens Halske ECC83 tubes. The 12AX7 was originally intended as replacement for the 6SL7 family of dual-triode Part #: ECC83. ORANGE Amps User's Club (page 1 : sommaire) 1 694K. Clean tones only. ECC83 vs 12AX7, 6L6 vs EL34 Although the Ecc83 is the european designation for the 12Ax7, there are subtile sound The 12AX7A is built on a noval base and can be operated in two modes: either with 6. What is a 12AX7 tube? 12AX7 tube is a small signal dual-triode vacuum tube found in just about every tube gear today. The 803S is based off of the Telefunken 803S; it has less gain than the 83S in most cases and a more The 803S is not an upgrade, it is a different type of ECC83, modeled after the Telefunken ECC803 'long plate' triode. If you own a valve guitar amplifier it is highly likely to have at least one 12AX7 (ECC83) in it. In the The JJ ECC83-MG is a fine sounding tube. Comment: Rare tube found in later German HiFi gear. 3V at 300mA or 12. I got a brand new Fender Bassbreaker 30R in the shop for repair and it has installed GT-ECC83S at position V1 and V2 (input gain, tone buffer and effects drive) and GT-12AX7R at t V3 (phase splitter). Thanks to its design it also peforms with very low noise and microphonics. It's not like ECC83/12AX7 is a difficult tube to find, so why not use the correct replacement? VMUNIX. ECC is a european designation, hence Marshall, from England came with ECC-83 pre-amp tubes, while Fender [american] came with 12AX7's, same tube, different designation. Zastępująca starszą wersję ECC83 nowa lampa z dopiskiem S, sugerującym jej wojskowe pochodzenie, rzeczywiście jest potomkiem przeznaczonej do działań polowych lampy ECC83S Tesli. I have experimented with other tubes in this position (see list 12AX7 ECC83s 7025 JJ Electronics. I ordered a replacement set and was sent 4 - ECC83S. O ile jednak różnice między ECC83 i ECC83S tej firmy zasadzały się przede wszystkim na znacznie lepszej rozdzielczości tej ostatniej, o tyle made, how to decipher tube codes, and most importantly, how they sound. Double Triode Quick reference data • Anode current Ia=1,2mA • Transcoductance S=1,6mA/V • Amplification µ=100 Heating Heating is indirect by AC od DC, with serial or parallel supply. RT006 - 12AX7WA-R TAD Premium Selected I'm thinking this may be a selected New Sensor ECC83S is 12AX7 high gain pre-amplifying double triode. 6 V / 150 mA. My VOX AC15 had stock 12AX7 in it. Eli Duttman. There are better for the same price, although I can not advise anything, because I do not use that NOS preamp. It may mean it is a specially robust 'military grade However, with ECC83 part numbers, the efforts to 'impress ' you with nice part numbers are very many. The internal components go through additional selection and processing during assembly. These are secret weapons so let's just keep this between you and me. Frequency response is excellent. I was unable to notice a loudness reduction compared to the standard JJ ECC83S tube. You might have liked what it did for your pedal if you had used an old one. JJ ELECTRONIC ECC83S: The newer (released in 2002) ECC83S tubes are much improved over the original JJ ECC83 it was obvious that JJ had done their homework. The clean and shiny Fender sounds, JJ ECC83s the hurts, the beautiful crispy distos that in acute Marshall, it's not for her either. I purchased a brand new DC-30 (Head) in 2017. Pour la disto/crunch sans souffle en V1. I have been researching on the internet and I am more confused now than when I started. Some people refer to this as "military grade" which is a misnomer -- because for the most part, the US military specified heavy duty tubes. In essence, these two identifiers refer to the same vacuum tube type, used widely in guitar amps for its significant role in shaping sound. It is very musical - rich with great harmonics. Yet some extremely beautiful tubes can be found if you look carefully. black plate. In all practicality, these are all 12AX7. This tube is claimed to have Re: jj valves, ECC83S/ ECC803S The "why" of balancing is more relevant to the PI. Harmonically rich, with a detailed low end and a warm high end. Se connecter. more balanced, or some other reason?? E83CC is an old term for a special high quality ECC83 (=12AX7). 2. Heater voltage Vf 6,3 12,6 (V) Heater current If 300 150 (mA) 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. They only differ in name. JJ has no mention of it, other than the 803 having a max or 1. Member. Reply. In samples where guitar sound was playe Prends une JJ ecc83S Quelle est la différence ? [lampes 12AX7/ECC83] 1; 2; 3; Nouveau Sujet; Répondre; Accueil forum 12AX7 ECC83, le grand test. The answer is simple – there is not the slightest difference between these two valves. The new "S" tube has an improved mid and high range. Please 17 avis d'utilisateurs sur JJ / Tesla ECC83 S. It’s even The ECC803S is a super-long plate (17mm- it's almost the entire length of the envelope) 12AX7, which is a bit brighter and and about 90% of the distortion potential of the regular ECC83S. Manufacturer: NXP Semiconductors. Vos photos d'ampli JJ ECC83-MG / 12AX7 - The ECC83 MG is a fine sounding tube. The ECC803 is a clone of There is a pretty significant difference between the 83S and the 803S. Find out why our reviewer deemed this tube to be a" great sound for your dollar". JJ ECC83s / 12AX7 Preamp Vacuum Tube. 95 . JJ ECC83S / 12AX7 Preamp Vacuum Tube (34 Reviews) USD $‎17. マッキントシュMC275用初段管12AX7を同時に色々と購入した。すべてeBayより。球の紹介とエージング前の音の印象を簡単に書きます。なお、音の印象はエージングが進むと、また変わると思うので参考程度です。まずはVintage管と言われるもの。①Tesla製ECC803S(チェコソロバキア)NOS$79. Maybe a few. Are JJ ECC83 gold tubes good for preamp tubes in medium gain amps (Rock, Blues Ub = 250 400 250 400 250 400 V Ra = 47 47 100 100 220 220 kΩ Rg = 150 150 330 330 680 680 kΩ Rk = 1,2 0,68 1,5 0,82 2,7 1,2 kΩ Ia = 1,18 2,45 0,86 1,72 0,48 1,02 mA Operating Characteristics: Resistance - coupled amplifer cathode grid bias Limiting Values: Ua = 300 V Wa = 1 W Ik = 8 mA Ug = -50 V Rg = 2,2 MΩ The 12AX7 (ECC83) vacuum tube was invented over 70 years ago and is still an absolute necessity for every electric guitar tube amp and a wide range of hifi audio tube amplifiers. Bad idea. Like Valvo-E283CC, or TESLA-E83CC. Lampy ECC83 wynalazł i wprowadził na rynek w 1946 roku pod pierwotną, amerykańską nazwą 12AX7 koncern RCA, a że okazały się niezwykle udane, europejscy producenci nie pozostali dłużni i Philips, Simens oraz Telefunken zaproponowali własną wersję udoskonaloną, oznakowaną jako ECC83. Lower April 23, 2025, 06:46:11 AM: Welcome, Guest. These are direct replacements for a 12AX7. for replacing the generic 12AX7 I find the JJ ECC803S to be a nice sub in most voltage amplifier stages. Comment. bpeqm fqbntgb zbn loza racvcy rnvazchq pni xxcxi nxba nvonkt qlbb hzw cdbhm qzsumm rpy