Ecc83 vs 12ax7.
A question for all the 'Tube' enthusiasts. I ve now got a valve integrated amp with 6L6WGC/5881 output valves (4), 12AU7 Pre-driver (2) , 12AX7 Phase splitter (2) and a 12AX7 in the pre-amp. All are sourced from Chelmer (CVC Branded). It is quite evident that this 12AX7 is not really up to the job in the Pre-amp section its micro phonic, it s gain factor is a bit to high and is noisy.Aug 19, 2011 · ECC83 is the British designation for a 12AX7. There are many different makes of ECC83/12AX7's. So, from a sound and gain standpoint, they can vary quite a bit. In fact I have some old GE 12AX7's that are actually GE labled Mullard ECC83's samdjr74 Silver Supporting Member Messages 9,081 Aug 19, 2011 #3 That's what I thought, thanks. Mullard 12AX7 Preamp Tube | Musician's Friend. Call 800-449-9128 for phone-only deals - Get Details. Home. Accessories. Amplifier Parts. Tubes for Instrument Amps. Preamp Tubes. Mullard.12AT7 has lower output and has more midrange focus 12AU7 has lower output than AT's and is pretty flat, same with the 12AY7. Obviously a lot more can be said about the effect each tube type has on tone but the best thing to do is have a listen for yourself and make your own determination on what type you prefer in your amp.Only. £15. Buy Now. Brimar thermionic products 12AX7 long plate dual triode has been selected for its high gain, and is most suitable for musical instrument pre-amp applications, with its long plate spiral filament rugged design has a smooth bite that musicians crave for. Just like in the days of old British valve manufacturers would select ...12AX7 Pre-Amp Tube ECC83 Tesla. 274b Vs 5u4g. 7025 was the designation used for a heavy duty version of the 12AX7. Darren Riley's Guitar & Amp Shop. Trade in your existing gear toward new or used equipment. 12AX7/ECC83 Mullard ムラード 4本マッチ 中ゲイン 真空管PX12【1年ロング保証】【音質向上72時間EG】 5つ星の ...ECC83 HISTORY o 350 va(V) The TELEFUNKEN ECC83-TK is a well-balanced tube suited for all types of music and playing styles. ... smooth highs. Developed by RCA and released in September of 1947, the 12AX7 is a high gain / low noise tube that is the most popular tube used in input / inter-stage audio amplifiers. The dual triode design makes the ...12AX7 / ECC83 / 7025 The 12AX7 is by far the most common out of all preamp tubes. Also known as the ECC83 or the 7025, it is a dual triode tube that has the highest voltage gain of all preamp tubes, with a mu of 100. Widely used across guitar amplifiers and hi-fi applications. For less gain, you can replace a 12AX7 with 5751, 12AT7, or a 12AY7Posted in Feedback by Tube Model, - 12AX7-T/TII/LS. Feedback received from Steven D. via email: "Hi Rachel, Initial impressions on the Treasure 12ax7-LS in the critical phono preamp application are positive (George Wright's WPP200C, 2 x 12ax7 per channel, 60db gain MC). Replacing the Psvane T-IIs, I find the sound is more articulate ...From New Sensor: "CV4004/12AX7 Mullard is a high gain, low noise valve with a short plate structure for reduced microphonics. Excellent for use in high gain Marshall pre-amplifier circuits where noise and microphonics can be a problem. ". New Sensor is promoting this as a great tube for guitar gear and long plates version for hi-fi.That'll work fine. And don't let anyone convince you that you need NOS tubes, yes they were better for the most part; but for what you are doing, that EHX will be just fine. If it doesn't work, you could try a 12AU7, but that'll be a HUGE change in gain/headroom, and will definitely make the amp quieter as well.The 12AX7 was made for quite a while. 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).Jul 15, 2010 · Jul 15, 2010. #1. so I received the tubes and was fucked up! turned out the tubes were ecc83 and not the ecc83s. the shop that I bought to said that there was a mistake on giving me the price, the price they gave me was for the ecc83 (what he told on the phone was ecc83s that douchebag... ) and the price is 2 or 3 times more expensive than the ... Original Mullard ECC83 (12AX7) pictured on the left and the 'reissue' tube on the right. This report compares the gain, inter-stage matching, microphony and electrical noise of both tubes. Gain A Tube Imp Mini Tube Tester was utilised to make a spot measurement voltage gain.I have some old Telefunken ECC83 smooth plate (12ax7) and ECC81 (12at7) tubes and I was wondering which will be the ultimate choice. The cremé de la cremé. I have also few Brimar ECC83 and ECC81 tubes. The Brimar ECC83 will probably be better choice for pre amp tube than phase inverter. Anyone have any experiments with those tubes? All info ...12AX7: html: Duncan''s Amp Pages: 6L13/ECC83: Acrobat PDF (5 pages) Vade Mecum s.345: Acrobat PDF (2 pages) Peter Millett: 12AX7: Acrobat PDF 65K 12AX7-A: Acrobat PDF 204K 5751: Acrobat PDF 208K 7025: Acrobat PDF 224K 20EZ7: Acrobat PDF 186K: National Valve Museum: 12AX7: html ECC83: html2: oldradio.qrz.ru there is also the european name for a 12ax7, which is an ecc83. a premium variant of the ecc83 is called an ecc803 and both of these tubes can also be used.ECC83 is the British designation for a 12AX7. There are many different makes of ECC83/12AX7's. So, from a sound and gain standpoint, they can vary quite a bit. In fact I have some old GE 12AX7's that are actually GE labled Mullard ECC83's samdjr74 Silver Supporting Member Messages 9,081 Aug 19, 2011 #3 That's what I thought, thanks.6SN7 vs 12AX7 preamps. Posted by tz7 (A) on June 17, 2021 at 12:29:41 . I have enjoyed my quicksilver pre-amp for a long time using 5751 raytheon windmill getters. That said, I have been thinking about switching to a 6SN7 based preamp and plan to experiment with a schiit freya plus that I just purchased.Selected tubes for low noise and low microphonics. Gold Pins model. The JJ 5751 is a drop-in replacement for any 12AX7 / ECC83 tube. It is a dependable, high mu double triode with reduced gain and clearer, more articulated tone than a higher gain ECC83. Full and chimey mids, a tight bottom end and greatly reduced hum and noise characterize this ...Original Mullard ECC83 (12AX7) pictured on the left and the 'reissue' tube on the right. This report compares the gain, inter-stage matching, microphony and electrical noise of both tubes. Gain A Tube Imp Mini Tube Tester was utilised to make a spot measurement voltage gain.The truth is, there is no difference at all between them, and each one is interchangeable with the other. 12Ax7 (Fig 1) is merely the American name of the tube. Fig 1 ECC83 (Fig 2) is how it's commonly known in Europe, and it is also its Mullard-Phillips tube designation. Fig 2 There are also many slightly altered versions of these tubes.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 the highest quality sound. The reissue Genalex Gold Lion ECC83/B759 recreates ...Replacement for all circuits requiring 12AX7/ECC83 types. • World-renowned for its smooth, round tone. • Used as OEM tube by major manufacturers such as Fender, Ampeg, Carvin, and many others • 7025/ECC83 equivalent Sovtek tubes are quite simply the absolute best. We design and manufacture our tubes, engineered for demanding high fidelity ...Mullard 12AX7/ECC83 I61 vs I63? If you put each of these in a tube tester and they read EXACT readings in terms of strength and output, what is the tone difference? I am using them in the front, V1 position in a few different guitar amps…. I have never purchased I61 types, all of mine are I63's… which I really love….The 12AX7 vs 12AT7 are two of the most commonly used preamp tubes. But which tube will make your guitar sound its best? ... JJ Electronics 12AX7/ECC83. Slovakian tube maker JJ Electronics makes reliable tubes with a neutral sound signature and a modest price tag. Their version of the 12AX7 is sold under European standards as the ECC83, and JJ ...The Mullard is similar to the exceptional Sovtek 12AX7LPS but the Mullard is selected from only the best of the lots and given the Mullard brand name. Many consider it the best 12AX7 made. The long plate design is popular with audiophiles because of its exceptional sound quality. (Note:Like the LPS the filament is spiral wound within the tube. 12AX7. Depending on the circuit, the 12BH7 will be drawing more current (which. will have an effect on all the other circuits), or will be operating in a. non-linear area of it's characteristic curve. To operate correctly, you will. need to change the plate and cathode resistors, and also reduce the value of. the dropping resistor in the power ...12AX7 Vacuum Tube Reference Information. ECC83: This European nomenclature for 12AX7. ECC803/ECC803S/E83CC: This "premium" version of European made 12AX7. The "S" on the ECC803S indicates "select" and are usually gold pin. These are usually found on Telefunken and Siemens branded tubes and a very rare Radiotron ecc803S version from the Philips ...Average delivery time to. United States. is. 19. days. Durable, low noise/microphonic double triode, close by characteristics to the 12AX7/ECC83. Made by VOSKHOD factory (ROCKET logo). 6N2P tubes are a replacement for 12AX7 in any typical amp application, but they have 6.3V heater voltage and would need a different wiring than stock 12AX7's.ECC83S - 12AX7, 7025. A.F. DOUBLE TRIODE. ECC83S is 12AX7 high gain pre-amplifying double triode. Thanks to its design it also peforms with very low noise and microphonics. Harmonically rich, with a detailed low end and a warm high end. DOWNLOAD PDF. Mullard RI vs JJ 12ax7 ecc83 - PRS 513 - Marshall jcm 800 2204Grabado en Estudio Entretelones por Mariano Alvarez CedroContacto: [email protected] 18, 2019 · The truth is, there is no difference at all between them, and each one is interchangeable with the other. 12Ax7 (Fig 1) is merely the American name of the tube. Fig 1 ECC83 (Fig 2) is how it’s commonly known in Europe, and it is also its Mullard-Phillips tube designation. Fig 2 There are also many slightly altered versions of these tubes. In some modern Fender amps substituting a 12AT7 or 12AY7 for the V1 12AX7 can blow the plate resistor, because the lower-gain valves draw slightly more current - but that's because Fender use a 1/2W resistor here. This amp has a 1W resistor, so it should be OK. "Take these three items, some WD-40, a vise grip, and a roll of duct tape. 12AX7 Vacuum Tube Reference Information. ECC83: This European nomenclature for 12AX7. ECC803/ECC803S/E83CC: This "premium" version of European made 12AX7. The "S" on the ECC803S indicates "select" and are usually gold pin. These are usually found on Telefunken and Siemens branded tubes and a very rare Radiotron ecc803S version from the Philips ...Mullard 12AX7/ECC83 - This long plate works really well in some amps, and really doesn't in others. Kind of similar to the Gold Lion 12AX7/ECC83/B759, the Mullard seems a little brighter, neither are harsh. One of my favorites. 7. Mullard CV4004/12AX7 - Not quite as toneful as the 12AX7/ECC83, but still nice.ECC83S-12AX7 by JJ Electronics. The two tested ECC83S-12AX7 by JJ Electronics provided us with a THD of respectively 0.14% and 0.16%, at 1W output power level. The THD went up respectively to 0.32% and 0.4%, at 5W. At 10W output level, the THD, with the two tested tubes, was respectively 0.75% and 0.93%.Matched Pair RCA JAC-5751 Black Plates 2 Mica O Getter=12AX7 ECC83 TUBES. $79.99. $10.00 shipping. Strong & Balanced Vintage 1950's RCA 12AX7 ECC83 Black Plate TUBE. $44.99. $5.00 shipping. RCA 12AX7 tube ECC83 ⭐️ Amplitrex tested ⭐️ tests Excellent With results 2. $24.44.The ECC83 was the European designation for 12AX7 but there is no difference with 12AX7. The 7025 is similar to 12AX7A but with a low microphony noise version of 12AX7. It does not speak up vibration noise, however. Amps like Vintage Fender used 7025 in high gain stages to avoid feedback noise.TWIN TRIODE, 12AX7 Datasheet, 12AX7 circuit, 12AX7 data sheet : GEC, alldatasheet, Datasheet, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, diodes, triacs and other semiconductors.new favourite 12AX7 tube - Shuguang Custom LS. While perusing a thread in December started by dmitchell regarding 12AX7 tubes, Voodoo Funk mentioned the Shuguang Custom 12AX7 LS tube. Curious, I ordered a pair to try out in my phono stage (Croft RIAA). I had a pair of Mazda ECC83 in there, and I was very happy with them.It uses 12AX7s in the Preamp, 6L6s in the power. pretty standard. 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. Any thoughts welcome.6j1 Tube Vs 12ax7 Sovtek 5751 Tube. The JJ ECC83 S is substantially different in construction from the other 12AX7 types considered here. The 12AT7 is a miniature, high-mu twin triode designed for use as a grounded-grid radio-frequency amplifier or as a combined oscillator and mixer at frequencies below approx 300MHz.a call at 905-816-0167 or check out www.tubeaudioproducts.com. Mullard ECC82 12AU7 M8136 Shield & BVA - Click to enlarge photos: Mullard ECC82/12AU7/CV4003 - Click to enlarge photos: Brimar ECC83/12AX7/CV4004 - Click to enlarge photos: «« MORE MULLARD & BRIMAR TUBES »». $20.00/pair shipping for worldwide delivery.Description. New Gain Matched Trio of Psvane 12AX7-S Art Series Gold Pins Vacuum Tubes. The Psvane 12AX7-S is part of their new Art Series from Psvane. The much loved 12AX7-T MKII has been upgraded with better materials to improve the sound. You can expect a very rich, detailed and warm sound from these tubes, even better than its predecessor.ECC81 - 12AT7. R.F. DOUBLE TRIODE. ECC81 is 12AT7 medium gain pre-amplifying double triode. Can be also used as replacement for 12AX7 in many applications. Very smooth and warm sound. Very low microphonic. Good for phase inverters or reverb drivers. DOWNLOAD PDF.12AX7 Pre-Amp Tube ECC83 Tesla. 274b Vs 5u4g. 7025 was the designation used for a heavy duty version of the 12AX7. Darren Riley's Guitar & Amp Shop. Trade in your existing gear toward new or used equipment. 12AX7/ECC83 Mullard ムラード 4本マッチ 中ゲイン 真空管PX12【1年ロング保証】【音質向上72時間EG】 5つ星の ...12AX7 (ECC83) TUNG-SOL. The Ultimate 12AX7. Big, warm, and musical. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound. Large Image. 12AX7 Tung-Sol specifications (PDF) Meeting a Legend. The Telefunken ECC83 is one of the most important tubes in its class - maybe the most important one. It was made in the Telefunken plant in Berlin - and has some distinctive marks which we have to talk about later. The Telefunken ECC83 is maybe the one and only tube in the ECC83/12AX7 range, which behaves is such a neutral ...Aug 14, 2020 · Item Condition: NOS Shipping Options: Pickup available and you can audition.,Shipping is available at agreed cost. Suburb or Town: Beeliar State: Western Australia Payment Method: EFT, Cash on Pickup Reason for selling: Surplus Further information: Never used. Bought them NOS from Germany. Tested... Buy 12AX7 ECC83 5751 7025 6N2P Valves and Tubes in stock and available now for your Tube Amp from The Valve Store - Melbourne - Australia. Call: 04 210 477 48 / 03 983 08 220. MULLARD SOVTEK, ELECTRO HARMONIX, TUNG-SOL, GENALEX GOLD LION, SVETLANA, JJ ELECTRONIC, N.O.S types in stock. More. Selected tubes for low noise and low microphonics. Gold Pins model. The JJ 5751 is a drop-in replacement for any 12AX7 / ECC83 tube. It is a dependable, high mu double triode with reduced gain and clearer, more articulated tone than a higher gain ECC83. Full and chimey mids, a tight bottom end and greatly reduced hum and noise characterize this ...12ax7 12au7 New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. The TAD ECC83 WA Selected provides a stunning warm tone, thick midrange and sweet natural harmonics. We designed it with a triple mica construction for low noise performance. Perfect for clean or moderate gain preamps as well as for high-gain amps from V2 position (for V1/Input stage the HIGHGRADE selection RT080 is recommended).Sometimes a 5751 can be used in lieu of a 12AX7. Some folks (guitar guys typically) that have gear that come equipped with 12AX7's will sub a 5751. They do this specifically because it colors the sound and changes the way the amp performs. They are looking for ways to "distort". This is a matter of taste as the 5751 is a lower gain tube than ...The 12AX7 I tested is a "Reference Tube" which comes with a 6L6 calibration tube, which in turn is for Hickok 533. I cannot see its printing. Just run a quick test on other two NOS tubes: Philip Miniwatt ECC83 (Delta-7A1) 1. ECC83 card -> 66 2. 12AX7 card -> 90 Sylvania JAN 12AX7WA (1970) 1. ECC83 card -> 67 2. 12AX7 card -> 76 more confused.....Another purchase and a pair of 12AX7 Telefunken reissues arrived. Reissue ECC83 on the left and NOS ECC83 on the right. They looked great. They were new, and they cost less than the NOS Teles I had been listening to. Same routine - warmed up the amp and then gave them a listen. As soon as the music started I missed the sound of the NOS ECC83 ...Bottom Line: The 12AX7/ECC83 vacuum tubes by Mullard combine a durable build quality with tonal reliability. Expressive and energetic, they can be used to add warm breakups to a clean chord sequence or to ramp up the gain for a guitar solo when required. ... 12AX7 vs. 12AU7 Tubes. 12AU7 tubes are also closely related to the 12AX7, but again ... Selected tubes for low noise and low microphonics. Gold Pins model. The JJ 5751 is a drop-in replacement for any 12AX7 / ECC83 tube. It is a dependable, high mu double triode with reduced gain and clearer, more articulated tone than a higher gain ECC83. Full and chimey mids, a tight bottom end and greatly reduced hum and noise characterize this ...The 12AY7 valve versus the 12AX7 (ECC83) valve. The 12AY7 valve (also known as the 6072) is a 9-pin tube. This is actually two valves in one glass envelope. It is what is called a 'double triode'. It was originally designed as a low noise tube and was actually developed before the 12AX7 (ECC83). The application for the 12AY7 is usually an ...Mullard 12AX7/ECC83 I61 vs I63? If you put each of these in a tube tester and they read EXACT readings in terms of strength and output, what is the tone difference? I am using them in the front, V1 position in a few different guitar amps…. I have never purchased I61 types, all of mine are I63's… which I really love….Reference Tube: Mullard ECC83, 17mm "long plate", stamped: [semi colon is a line break] "138; ECC83; 12AX7; MADE IN; GT BRITAIN" Date code B9C, which means Blackburn, 1959, March. "D" getter (dual support halo). This is a 45 year old tube that tests stronger than some of the new imports (read: "polished turds") that I've purchased. Test resultsThe Presonus is a great piece for your rack, but like most tube gear these days, it ships stock with a generic Chinese 12AX7 tube. The Chinese generics are not good. I'd recommend tossing them in the trash as soon as you get the unit and replacing with at least a Tung-Sol 12AX7.Vintage Electronics ; Vintage Audio & Video; General Electric - 12AX7 - ECC83 - Perfect Tube - Audiophile Des; $50 General Electric - 12AX7 - ECC83 - Perfect Tube - Audiophile Des Consumer Electronics Vintage Electronics Vintage Audio & Video General Electric - 12AX7 ECC83 Tube Des Perfect Audiophile Cheap sale Electric,Tube,12AX7,Des,-,Audiophile,Perfect,$50,General,-,Consumer Electronics ...