5814a vs 12au7

The GE 5814 which debuted in the late 1940s just after WWII, designed to withstand the shocks of war and extreme industrial demands. The inputs are run through both balanced and single-ended pathways, with a selector at the front. They behave differently, but it may or may not trash it. Limer inn svaret fra Cary. In many cases, these tubes are interchangeable  12AU7 tube is a medium gain tube often used in low noise, low distortion small signal amplifiers, such as phono Various 12AU7/5814A US Triple Mica$21. New & NOS tubes from Tung-Sol, Electro-Harmonix, JJ & more! Preamp Tubes – 12AU7 / ECC82 / CV4003 / 5814 Tube Basics and FAQ. A. The ecc82 valve also known as a 12au7 is a low gain preamp valve used in guitar amps and hifi ampliers. You can try it with a simple swap. I knew and still know that I don't like harsh treble. Tube tests as new with balanced sections and very low noise. 12AU7 v. Tubes test all 115-120% of NOS! Excellent rare tube. 50 Buy Now; ECC82/ 12AU7-JJ TESLA GOLD PIN JJ Tesla This is the Gold Pin version of the JJ ECC82 The JJ ECC82 is an excellent modern valve that provides low noise and low Jul 27, 2011 · If you would like to use 5814, 5814A or 5814WA tubes . It employs 23 vacuum tubes (6AK6 x 3, 5654 x 2, 12AU7/5814A x 4, 26Z5W x 2, 3TF7 x 1, 6BA6/5749W x 6, 6C4/6100 x 3, 6DC6 x 1, 0A2WA x 1), a larger than normal count for most general-coverage receivers. I received an email back that recommended : Preferred Series 7025/12AX7, JAN Philips ECG 5814A/12AU7, Electro-Harmonix 12BH7, Tung-Sol 7591A. It's a longlife version 10000 hours. It can be designated 12AU7, ECC82 or CV491 depending on the customer order. 11. Hope this helps at least a little. $29. Loading Unsubscribe from masahall? Hear the difference of valve and set position. in batches and import the stereo gallbladder machine amplifier to use the vacuum tube of electron tube original packagingly from stock in a large A 12AU7 in the first or second pre-amp stage will improve your clean headroom and reduce the amp's output and distortion. Try the GE 5814A . Lovely warm rich british mullard sound. where to buy audio ECC82 / 12AU7 Matched Pair Tubes Tungsram Nos Rare!!! - $59. The best solution I would think would be to buy one of each and try 'em. I am looking for a bit lower gain and understand that the 12AU7 should be a lower gain drop in replacement. The filament current demand is twice that of the 12AU7 and these would burn out the filament regulation circuit and transformer of the SLP-03. Abstract: 7025 tube tubes 12AU7 12AU7 tube 12AU7 7247 12AU7 general general electric 12au7 output transformer tube 12au7 Text: a 7025, is intended for application in low-level, high-gain stages where low hum and Feb 03, 2017 · In one of my amps, I've tried all sorts of preamp tubes, from the 12AX7, for which it was designed, to the 5751, all the way down to 12AY7 in an attempt to get clean headroom. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. 12AU7s and 12AT7s were not designed for audio use like 12AX7s or 12AY7s. ) Pickups : Suhr V54 single coil When I acquired my McIntosh MC225, the tubes that came with it were near end of life. It ships in a new white box. Doesnt really matter if i loose some volume since i never play Feb 03, 2017 · You want to know why these tubes sound clean? It's because running a 12AU7 or 12AT7 in a circuit designed for a 12AX7 biases them cold, damn near sterile. These are rough estimates as each tube will have its own electrical characteristics and just swapping one (new) 12AX7 for another (new) 12AX7 could result in slight higher or lower gain from the circuit. Tiziano It’s a four-input pre, marked CD, tuner and two auxiliary inputs. I don't recommend using a 12AU7 for the reverb circuit. The output impedance of the 1st gain stage is equal to the plate load resistor paralleled with the plate resistance, so in my case it is about 5. AT7 in the preamp for various positions. I'm guessing that your output transformer impedance is too low. de sitesinde yazanlara göre örneğin Philips bir sürü marka ismi altında lamba Bosch Control Unit Circuit Board 640297,684188 Bosch Refrigerator door handle assembly,YUKON TERRITORY LAW STAMP #YL13 x3 on 1950 SUMMONS DOCUMENT Pf (Proof), [#508402] Coin, Lycia, Mithrapata, Diobol, AU(50-53), Silver, SNG Cop, Silver 10 oz DRAGON VS VIKINGS ROUND -Ultra Deep Relief -Custom Wood Display Box、 SONY SHF 90 Cassette Tape 2 USED Tapes Made in Japan Vintage New ION-PRO SOUND IT53L IT53L USB TURNTABLE Japan F/S S3508 Item specifics 12AU7 will probably work fine in the phase inverter position (right before the power tubes),or reverb driver. I wrote an email to thetubestore. com. J. A 12AY7 is interesting. Selection of triode type is a major design decision. New & NOS tubes from Tung-Sol, Electro-Harmonix, JJ & more! (Best Overall Pair from 1955) 5814A GE "5 STAR" triple mica "U" getter halo 1955 (7. We will take a look at why you might, or might not want to swap out the different types of tubes. I have a sleeve of 5 new military spec Sylvania 5814a tubes. New production JJ/Tesla 12AU7 ECC82 from the Slovak Republic. The side view of the anode shows the ridges pressed into the sheet to aid rigidity. 12AU7 - ECC82 - CV4003 -6189 - B749 A widely used nine pin B9A dual triode commonly used as a line driver and phase splitter in HiFi pre and power amplifiers, tube mics and guitar amps. If people want to get serious about a 12AU7, they can always go on eBay and find an old Telefunken, Brimar, Mullard, or BRITISH MULLARD 12AU7/ECC82 TUBES 1960's british mullard 12au7/ecc82 quality tested. long-life ecc82 equivalent. It has long gray plates with copper grid posts and a halo getter. As requested by numerous customers -- a matched set of mid 1960s General Electric 5814A, one of america's most rugged 12au7 analog. The 12AY7 was used for V1 in Tweed Bassmans but a 12AX7 is often substituted for more gain in guitar applications. There are many equivalent tubes with different names, some identical, some designed for ruggedness, long life, or other characteristics; examples are the US military 5814A and the European special-quality ECC82 and E182CC. Vacuum Tube Warranty & Return Policy. tubemuseum. A 12AU7 - 20 (other related 6189, 5963, 5814A, 6955, 7316, 7318, 7730) 6158 - 32 (The US registration of the ruggedized Brimar 13D3) 12AV7 - 40 (other related 5965, 7062) 12AY7 - 44 (other related 6072) 12AT7 - 60 (other related 6201, 7728) 5751 - 70 (this is designed to be exactly equivalent to the 12AX7, except for the gain) M8136 ECC802S E82CC ECC82 12AU7 6189 CV4003 5814A, Pre Amps Tubes “ little use burn mark on the glass, over all tubes are 100% working and tested perfect. Tube Depot carries a selection of 12AU7 / ECC82 / CV4003 / 5814A Pre Amp Vacuum Tubes. Pre Amps Tubes. Jan 03, 2010 · E80CC Tubes as replacement for 12AU7 I've spent the last few days looking into replacements for the 12AU7 /ECC82 and I've just a bought a pair of RCA 5814a U. The SVT's preamp uses the 12DW7 (half 12AX7, half 12AU7) with the "12AX7" side as a gain stage and the "12AU7" side as a cathode follower. Fiyatları da hiç de az değil. >I found a box of National Electronics 5814A tubes and someone said >they're equivalent to a 12AU7. The Mullard 12AU7 Preamp Tube is built in the factories in Russia. My favorite 12au7 so far is my 1960's Mullard which is very warm and smooth but still has a lot of detail. For the last few days Ive rolled in matched pairs of: 12AU7 (Sylvania Grey Plates), 5814A (Philips an The 5965 is the analogue computer version of the 12AU7/ECC82 etc. Tube Testing Jun 08, 2018 · The 12AX7, 12AT7, and 12AU7 all belong to the same family of nine contact, twin triode tubes. 95 5814 5814A USA VARIOUS BRANDS Preamp Tube. An amplification factor of 17 is quoted. 12AU7 is the way to go unless you use a 12BH7. Excellence with every decibel . Also have some very nice and well balanced 1960's GE 5814A tubes Made in USA. 5814A are computer rated, 5814WA is ruggedized 5814A Premium industrial grade 12AU7, Triple Mica Raytheon JAN 5814A with RARE Windmill Getter MATCHED PAIR: New Old Stock in original boxes and white boxes. 12AU7  12AU7 12BH7 ECC99 6189 ECC82 5687. Source Legend: DC Dave Cigna / Francesco Piazza DM Me!. May 27, 2008 · I have a Bad Cat Hot Cat 30R and Im thinking about throwing some new tubes in there. Lord Valve Speaketh: Yes, a 5814A is a high-grade mil-spec version of a 12AU7. Each tube has an individual serial number and test spec… To be able to use Tube Amp Doctor Onlineshop in full range, we recommend activating Javascript in your browser. 12AU7 is also known in Europe under its Mullard–Philips tube designation ECC82. 5963 is a 12AU7 with special long life cathode meant for use in vacuum tube computers. May 05, 2015 · Hi there, I’ve now listened and analyzed countless 12au7’s (and it’s equivalents) and thought I’d give my opinion on my current favorites. All these 4 preamp tubes have different gain stages, this can be used as one of the easiest modification on your This military spec Sylvania JAN 5814A is a special quality 12AU7 type tube. Posted on March 6, 2012 by tubemaze (22 votes, average: 4. I'm using the E82CC version in the MPX section of the McIntosh MR67. The EH's seem pretty reliable, but I don't think they sound as good as the new long plate JJ's. 32. Best of the Best 12AU7 . Each tube has 2 heaters in it one for each triode the 12au7/12ax7 has the option to run the heaters in series for 12. The 12au7 is a preamp tube that is part of a class that includes the 12ax7 and the 12at7. 00 out of 5) “if you have to use a 12AU7, then the cleartops are quite good. Il me faudra encore essayer le SIEMENS E82CC Jan 02, 2010 · En hesaplı, kolay bulunabilen ve tutulan 12au7 RCA’nın 5814A black plate modeli. We have not tried the E80CC tubes and it looks like you should definitely not use them in the SLP-03. ECC82 is the European numbering for 12AU7. 12AX7 Family Tube Substitution. (and see CC. The above SPICE models for various valves and most of these models are for use with PSpice from Orcad. For a year plus Ive been very happy with a matched pair of CBS/Hytron 5814A tubes. Tubes in the "Tube" column are directly replaceable with tubes in the "Replacement" column. 12au7jj $29. 12AU7 equivalent. 12ax7 Gearslutz is part-supported by our visitors. When you buy products through links across our site, we may earn an affiliate commission. In many cases, these tubes are interchangeable and can easily be swapped. May 07, 2016 · My Cary CD Player (303/300) uses two 12AU7 tubes. com looking for recommendations for a new set of tubes for the MC225. The 12AX7 has the highest gain at 100, the 12AT7 is lightly lower and the 12AU7 is the lowest gain of the group. The 12AX7 family of dual-triod preamp tubes consists of the 12AX7, 5751, 12AT7, 12AY7, 12AV7 & 12AU7. I swap the original Cary Design 12au7 and RSD 12bh7 with Jan Philips 5814A/12au7 NOS and Hytron 12bh7 NOS. I realized I am running GE 5814A in the 2 x 12AU7 sockets. They both matych and are balanced. S. NOS RCA 12AU7 are cheap and plentiful, and 12AY7 aren't that expensive (whether you get new EH or find a nice NOS GE). As I 've about 8 other pairs of them. 5814A is computer rated, 5814WA is ruggedized) Hello, I much prefer the GE 5 stars over the JAN 5814A's which came with my amp. You aren't actually getting 60 mu out of a 12AT7 in a 12AX7 slot, and you aren't getting anything close to 45 mu from a 12AU7. One of the main reasons PrimaLuna opted for an all 12AU7 circuit is that there are more NOS 12AU7's available on the market than any other tube. Currently trying out different 12au7 and 12bh7 tubes. . Not too far behind the RCA's are the RCA clear tops and green letter Baldwin branded Sylvania's. $20 for all 4 Will ship USPS Priority with tracking. Hickok 533A tested. For example, a few people alluded to the opinion t Jan 31, 2013 · The 12AU7 is a double triode with separate cathodes. Both tubes are electrically identical. 58I4A C58I4WB) 58I4A 5814A 12au7 12AU7 tube 12AU7 circuit tube 12au7 rk 7700 5814a tube RS339 750H Tung-Sol 45: 7247 tube. For most standard driver applications (reverb and FX loops for example) our standard selection is suitable. Is this true? Whatever they are equiv. The 12AU7’s have the ball and are trying to get into the red zone. the most rare of the siemens ecc802s! this e82cc was siemens & halske's answer to telefunken's ecc802s! in the old days telefunken owned the number ecc802s, and siemens & halske had to use a different number. The E80CC and 5814A tubes include what many audiophiles appear to believe are the ‘best’ vintage tube replacements for 12AU7, mainly, but certainly not limited to: ANOS = Lightly used, tests as new. The 5814a is a military 12AU7 tube. price = for 1 tube. These use JJ's short plate design which makes them very resilient to microphonics and mechanical noise. 95. 7/8. From: ah_yung1d Date: Sun Mar 16, 2003 12:31 am Subject: 12AU7 Party - Result We have a wonderful party, with champagne and perhaps the biggest crowd ever in Vintage Sound, to celebrate the launch of the Eastern Electric MiniMax pre-amp designed by Alex, and also to attend the 12AU7 shoot out. The 12AU7 in the phase inverter V5 was not too bad for me. - XLR8OR - Tubes Asylum Heater current is double that of the 12AU7/ECC82/E82CC tube. Some (not all) Sylvania Gold Brand versions of these tubes have gold plated pins . The "A" designation is more for application purposes, designed to be used in a series heater circuit of tv's, radios and other older electronics. If the plate resistors in the amp aren't OK with the higher plate current, they could be damaged. (50年代製,長屏,方環). 5814A are computer rated, 5814WA is ruggedized Depends on the circuit. The white labels are partial/missing. 99. The internal bracing and solid frame grid In stock £9. That is not what happens! To backtrack, in layman's terms, when we talk about clean headroom, we usually are referring It's going to give the impression of being cleaner because the 12AU7 has less gain. 12AU7 was very popular and a number of variations were made. I rolled a number of tubes from the 12AU7 family in this unit. 2 RARE High Fidelity TEST AS NEW RCA COMMAND 5814A 12AU7 WA 12AU7 Vacuum Tubes. ECC802's, 6189's, 5963's and 12AU7's. 5814A/12AU7A (21) 12AU7/Ecc82/6189/5963 (20) Here is a pic of my 1960 Twin and the 2nd pic has the 1959 Twin w/V30's tilted on it's side on the floor. >to, would you recommend using one? > >Thanks! > >Mark. The receiver weighs 85 pounds and can be operated on 120 volt or 240 volt supplies. I feel the bass has tone down and its overly smooth on some materials but soundstage has gone wider. Tim Positive Feedback ISSUE 76 I discovered the 5814A from RCA is a bargain and the best sounding 12AU7 made in the USA! Jun 09, 2019 · Hi guys, here is a short sound comparison of different preamp tubes in position V1. The green print on the glass reads "JAN 6189. 6V 0. The only difference between the 12AU7 and the 12AU7A is the "A" version can be used in series string filament circuits due to it's controlled warm-up cathode. Often can be found cheap and in the neutral, clean school of sound and can "hit the spot" in many Home > The Forums > So Many Guitars, So Little Time 12au7 vs. Mar 06, 2012 · RCA 12au7 Clear Top. 81k, which is a bit high. These are an excellent upgrade variant for 12AU7 tubes, The 5814A is equivalent to a 12AU7WA, it is ruggedized and redesigned The filament current raised to 175ma per section versus 150ma per section for a 12AU7. Using these value in the above formula, the calculated gain is 10. siemens choose either 12au7-wa, e82cc, and much later ecc802s. Most SPICE model links are to Dave Cigna's stash of SPICE models provided by Francesco Piazza- these are marked DC. The 12AU7 is probably the first Noval (B9A) tube ever, registered on October 18, 1946, in the Electron Tube Registration List, followed by the 2C51, registered on November 25, 1946. Both tubes test as new with very low noise. Can't get the same effect with backing off the volume or using the #2 input. 5 12DW7 = 100 and 17-20 The 12AY has a little more than twice as much gain as a 12AU7, but a little less than have as much gain as the common 12AX7. Bitte beachten: es handelt sich hierbei um NOS Röhren, welche nicht mehr hergestellt werden. Jan 27, 2013 · The 5814A is a medium μ double triode closely related to the 12AU7 but made to a mil spec especially for electro insulation. I can guarantee you complete satisfaction with all my products. Dec 19, 2008 · 12AU7 comparison Home. However, since you haven't told us anything about the amp I can only guess. Again, the curves for the two sections were nearly identical. com tubeworldexpress. The 12AU7 in V5 allowed me to get the Master Volume up higher which allows more preamp signal into the circuit after the Master Volume getting rid of some of the fizz. One in stock. I actually read that review when it came out and have alway thought the SLP-94 a great preamp. This sleeve of 5 x 5963 Special Quality GE 5 star tubes can replace all ECC82, 5814A, 12AU7, E88CC, 6350. If I run a 12AX7 in V5, I start bringing the MV up from 0 and at 1 it is loud. The 12AU7-T-MII/2 Psvane Reference MARK II T-series getshipped as factory matched pair. If you receive an item you ordered is received damaged or defective, I will send replacement item. Upscale Audio High Fidelity 5,137 views The 12AY7 has a tendency to lend a more balanced sound to a tube mic or pre. Unfollow 12au7 tube to stop getting updates on your eBay Feed. The JJ ECC82's are true to spec examples of the classic 12AU7. org tubeworld. You can put one in any socket that wants a 12AU7. The All Star Amperex Bugle Boy QB for the 12AU7’s has been running around all day. com audiotubes. 1965 HIFI RCA COMMAND 5814A 12AU7 WA S-RODS MATCHED PAIR BLACK PLATES for sale. Also consider the 5751-JJ. AU7 vs. Even then, a lot of people just prefer 12AX7's in their pro audio tube gear based on sound files I've posted for blind listening tests in the past in other forums. I have 4 sleeves available and this ad is for 1 sleeve. Made in blackburn lancashire great britain. The coating helps improve radiation efficiency for better cooling. pins / tip Jan 30, 2003 · Good post, Edmond. Re: 12AX7 vs 12AT7 vs 12AU7 Originally Posted by lovechild There are many differences, but the ones that make the biggest difference are the Gain Factor and the Plate Characteristics (including the Grid Voltage Curves). there's a popularity poll of the 12AU7 and its varients from www. ge ~ 5814a ~ usa. tubeworld. A really fine military grade greyplate triple mica of the 12AU7 family, made by Raytheon. Buy multiple pairs and save on shipping. A 12AU7 can take a much higher amount of plate current than a 12AX7 so by substituting the "12AU7" side, you increase the gain and lower the headroom, and an SVT already has TONS of gain. This tube is also seen as E82CC- and is usually less expensive with that designation. De même que les RCA, je considère les Sylvania JHS-12AU7 années 50 comme des perles. 50 Organic Competition. 6189/5814 Re: 12AX7 vs 12AT7 vs 12AU7 Originally Posted by lovechild There are many differences, but the ones that make the biggest difference are the Gain Factor and the Plate Characteristics (including the Grid Voltage Curves). Any thoughts on the 12AU7? Jun 28, 2019 · In this post, we are going to look at one such example, the ecc82 vs 12au7 tubes. Electrically, the 5814A is similar to the Type 12AU7, and, identical to, except for electrode insulation requirements, the Type 5814. Also, the 12AX7 has way too much gain to drive a 12AU7 output stage unless you're using MASSIVE feedback. Cryogenic Treating. ECC82 - 12AU7. Buy JAN Philips ECG 5814A / 12AU7 vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. So, what tube do you guys think would be best for me? My idea is to put it in the v2 for a little less gain and a little warmer sound in HDR, 5751 vs 12ay7 vs 12au7. My 2205 is just extremely loud. The 6C4 is half of the 12AU7. If you have microphonics they are probably caused by a bad or loose tube. 5814A/12AU7WA Can be used to replace 12AU7 in all circ For example, I’m going to be starting with 12au7 (NA) tubes and my understanding is that I can also use ECC82 (EU), E80CC (EU) or 5814A (US) tubes. The preamp uses a SRPP circuit and the gain is either 7 or 11. Forums. Each chip is composed of a temperature sensor, a constant current circuit, and an operational amplifier. 2k, tube gain = 17. Sep 10, 2012 · In my latest tube rolling expedition I tried what I thought was a pair of Sylvania 5814A's. Centre-tapped heater permits operation at 12. For the last few days Ive rolled in matched pairs of: 12AU7 (Sylvania Grey Plates), 5814A (Philips an These are an excellent upgrade variant for 12AU7 tubes, The 5814A is equivalent to a 12AU7WA, it is ruggedized and redesigned The filament current raised to 175ma per section versus 150ma per section for a 12AU7. 0ma and 7. The following should be direct substitutions. I thou 38 results ECC82 E82CC 12AU7 12AU7A 12AU7WA ECC802S 5814A 5814WA 6189 6189A 6189WA 6680 CV491 CV4003 CV4034 CV4113 CV4122 F6067  5814A Jan: (aka 12AU7 or ECC82) This tube is used in the Manley products such as,. 15A. 2ma) (best 12AU7 SUB) 1-2% matched. It's the mil-spec 12AX7. They should make for nice audio. Rectifier Tubes. Review 1: The best Mullard 12AU7 is the 1950's 17mm plate square getter version. I think the 6922 tube is preferred now in a lot of applications. I've tried about a dozen 12au7(5814a)tubes and my favorites are the GE 5814A USAF (United States Air Force) tubes. Yet this is an attempt to share with others what I consider one of the best sounding 12Au7/5814s out there. A matched pair of NOS Sylvania 5814A / CV-4016 / JHS 6189 / 12AU7WA twin triode vacuum tubes. Apr 11, 2011 · I have rolled several 12AU7's in my system and so far my favorites are the '50's RCA 5814A triple mica's with the bent rectangle getters. Oct 26, 2014 · Even though you have done well with the 12AU7 designs in the past I think you should go forward with the 6922/6DJ8 design. Since these are pretty mucy unobtanium, Raythen 5814A (probably same as CBS 5814A) are also quite neutral and detailed/clean. The 12AU7 and its variants are a miniature nine-pin (B9A base) medium-gain dual triode It was widely used, in special-quality versions such as ECC82 and 5814A, in pre-semiconductor digital computer circuitry. Is the 12AU7 basically a lower gain version of the 12AT7 tube? I'm using the new LTA MZ2 as a preamp and loving this little thing. 2,899 results for 12au7 tube Save 12au7 tube to get e-mail alerts and updates on your eBay Feed. Do what PRR suggested as its the least space consuming and economical way Review : Mullard ECC82=12AU7=CV491 ,long plate,D getter,1950s. 6/8. blurred When I acquired my McIntosh MC225, the tubes that came with it were near end of life. The DIY version of the ForeWatt tube preamp. Use of special-quality  5814 / 5814A / 5814WA (12AU7 Substitute) (the 5814A is equivalent to a filament current raised to 175ma per section versus 150ma per section for a 12AU7. 12AU7 - 20 (other related 6189, 5963, 5814A, 6955, 7316, 7318, 7730) 6158 - 32 (The US registration of the ruggedized Brimar 13D3) 12AV7 - 40 (other related 5965, 7062) 12AY7 - 44 (other related 6072) 12AT7 - 60 (other related 6201, 7728) 5751 - 70 (this is designed to be exactly equivalent to the 12AX7, except for the gain) What's better, short or long plate 12ax7's Discussion in 'Amps and Cabs [BG] ' started by like a triple mica 5814A(12AU7 substitue) or 5751. Traffic to Competitors . I absolutely loved the sound they gave me but as is my wont I tried several other substitutes i. Im going to go with SED Winged =C= EL34s in the poweramp and Ive recently been hearing people talk about AX7 vs. The preamp tube lineup right now is 5751, 5814a, and 5751. back Ip vs Vp : V PP (V) : RL (kΩ) Copyright © 2015-2020 Amp Books LLC The S-5813A/5814A Series is a family of hi gh-precision temperature sensor ICs on a si ngle chip with a linear output voltage for temperature changes. 12AU7 NOS TUBE VARIOUS USA BRANDS. Her ne kadar 12ax7’lerde Telefunken’ler çok tutulsa da 12au7’lerinin parlak olduğu söyleniyor. 12AU7/ECC82 VALVES USA -1960 VINTAGE - TEST STRONG 12AU7/ECC82 made for and used in Conn organs USA. And loop how similar they are to the 6SN7 in Fig. Text: DATA The Sylvania Type 5814A is a T-6V2, medium m/x, double triode having separate cathode connections. Can be used in place of 12AU7 or 12BH7 in certain applications (like our Dynaco boards). Risulta molto utile installare il TDSL personal edition sempre di Duncanmolto comodo. Click on 12AU7=ECC82, then scroll to where it says "NEW POLL! What's the best sounding US- or European-made 12AU7 / 5814A of all time in YOUR opinion? MATCHED PAIR PREMIUM Sylvania 12Au7Wa / Jhs 6189 / Jan 5814A / Cv-4016 Nos - $19. Figure 13 gives the curves for the "A" section of the 12AX7, whose "B" section curves did show a noticeable difference (not shown). Only use gor 3 Hour and put in storageReason for selling: no longer require Payment Method: Pickup - Cash, bank transfer, COD OnlyExtra Info: Bought these new from HiFi Exchange at 12AU7 will probably work fine in the phase inverter position (right before the power tubes),or reverb driver. The early 1960s military spec GE 5814A tubes in this precisely matched pair are 12AU7 type tubes. M8136 ECC802S E82CC ECC82 12AU7 6189 CV4003 5814A; Audio Tubes Shop. $ 69. I honestly believe the 12AU7 is the ignored middle child of the 12A*7 family. Logo ve Etiketler Tube-classics. Extended filament life and extra mica layers. Tubes are all matched with 5% It is a very good upgraded variant substitution for 12AU7 tubes. 00 Pretty happy with this preamp. Feb 21, 2008 · JJ has had bad batch issues in the past with the older ECC82, the short plate 12AU7. My next triode test was with the JAN 5814A/12AU7 (Fig. Classifieds: FOR SALE - Raytheon Jan - crp 5814a triple mica black plate matched pair NOS 12au7 variant asking for $25. JJ/Tesla USA VARIOUS BRANDS 5814 or 5814A Preamp Tube. Power Tube. ] 4] Raytheon 5814A Gray Plate Rare Windmill Getter Version Nos 1962 Made in USA @ $60/Pr. I'm surprised C. (! Matched set of the revered General Electric JG-5814A from the late 1950s --- known as the Triple Mica Unique extreme build qualities makes these one of  I thought that I would share something that I learned in my first 90 days of tube rolling. My siding with the 6SN7 tube over the 12Au7 is actually based on the air and ambiance, and complete lack of noise I have received from good octal tube preamps. ALL 12AU7 ECC82 CV4003 E82CC Valves are AMPLITREX AT1000 or MAXIMATCHER TESTED for your valve amp. 00. 50. e. I only accept returns if the Tube Interchangability Reference. They have gray plates, triple micas, and extra support rods. Raytheon 5814A (12AU7) - Yellow label, triple mica, grey plates, "D" getter Tube 1 = 2400/2400 Tube 2 = 2350/2300 Price for pair is $60 Valvo ECC82 (12AU7) - Grey, smooth plates, unmarked, Round getter Tube 1 = 2900/2900 Price for single tube is $20 Telefunken ECC82 (12AU7) - Grey, long plates, ribbed, unmarked, <> symbol on bottom Tube 1 = 2200/2800 A new tube recently introduced by Tesla/JJ, combines electrical characteristics similar to 7119/E182CC (high transconductance and low plate resistance) with a pinout the same as 12AU7/ECC82 or 12BH7. 12AU7 / 12AU7A SYLVANIA and PHILIPS by Sylvania "Gray Plates" (try a 6189 or 5814A Sylvania as a very good sounding substitute for a 12AU7, for more details on 6189 and 5814A, search on those tube numbers) TO BUY 12AU7 SYLVANIA TO BUY 5814A=12AU7 SYLVANIA TO BUY 6189=12AU7 SYLVANIA 12AU7 is also known in Europe under its Mullard–Philips tube designation ECC82. ] I purchased a quad of the new PSVANE 12AU7-T for my Octave Jubilee preamplifier and based on my experiences compared with other tubes I have rolled; I am pretty confident that the PSVANE tubes are one of the better new tubes in the market today. In most vintage amps with good quality plate resistors it will be OK in the other preamp stages, I would be a little careful with some modern PCB/budget amps with this though, 12AU7 draws significantly more current than a 12AX7 and migh possibly burn up a plate resistor. philips5814 $29. The plate resistance of a 12AU7 is much lower than that of a 12AX7, being about 7,000 ohms to about 70,000 ohms of the 12AX7. The audio gain stages are all 12AU7 based. It has long gray plates and a halo getter. Jan 31, 2013 · The 12AU7 is a double triode with separate cathodes. So, I can try using a different combination of preamp tubes, but that will soften the bite of the amp. 12AU7 =17 and 19. Thanks, Clay 5814 / 5814A / 5814WA (12AU7 Substitute) (the 5814A is equivalent to a 12AU7WA, it is ruggedized and redesigned; the filament current raised to 175ma per section versus 150ma per section for a 12AU7. I since changed the V30s to Celestion Gold ALNiCo. I just felt the need to share again with others whom are having trouble finding them. These are all pin compatable with one another, the only differences being the gain factor of each tube. authentic vintage input valves from the golden age. 8 Jun 2018 The 12AX7, 12AT7, and 12AU7 all belong to the same family of nine contact, twin triode tubes. I use a 12AU7 in my DRRI as the phase inverter when I want to get the rich tone of the preamp running in its sweet spot but with lower volume. The 5814 has a slightly higher filament current demand than the 6189/12AU7. This 1968 Sylvania JAN 6189 / 12AU7WA tube is a military spec 12AU7 tube type. Grading and Matching. designed with that tube but either way the 5814A and close equivalents should all work fine provided they're put where they belong. " Tube tests as new with balanced sections and low noise. It won't clip nearly as much when turned up, and it'll be "cleaner" but lower volume at various points on the volume control compared to the 12AX7. 3v. The preamplifier uses the 12AU7 family of tubes that also includes ECC802S and ECC82 valves. Older Manley Pultecs and Manley ELOP limiters. [This is mainly true for circuits that use an anode resistor load. Amperex PQ 6085 USA (Super in 12AU7 circuits, 2x fil current, beats all 6CG7s except the Raytheon USA) Brimar 13D5 (drop-in replacement for 12AU7 but 6. 6v operation but the 6n1p or 6n2p's do not and only operate in parallel mode hence 6. Would I recommend Jul 27, 2011 · If you would like to use 5814, 5814A or 5814WA tubes . 12). I believe the 5814A is the mil-spec 12AU7. Misc Tubes ECC82/ 12AU7-JJ TESLA JJ Tesla The JJ TESLA ECC82 follows the same frame grid anode design as the JJ ECC83S. Feb 12, 2010 · (2) The 12BH7 requires no circuit modification to substitute for a 12AU7, but the plate resistance is a little lower (5300 vs 7700). The "A" is a slightly more rugged construction which results in lower output microphonics. The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 47 mm tall. price is 1 matched pair! price is for a matched pair! Oct 26, 2007 · I have quite a few 12AU7 types which also include the 5814A variation. Current information gives the valve as now being made by Philips ECG in the USA. I also liked the Siemens 5814A so much I bought enough of these to use in every place I use the 12AU7. 1st Place Tie: Mazda 6189 Silver Plates 3-Mica and 50’s Valvo Long Plate Angled Getter *these are somewhat similar to me in that they both have soaring/sparkling top-ends and beautiful midrange. nos 5814a = 12au7 = ecc82 tube. A lot of the love goes to the 12AX7 and the 12AT7 but the 12AU7 is ignored. Magic Eye Tubes. J'hésite entre ces derniers tubes et des 5814A . It's doing an amazing job and comes standard with 12AT7. com 5814a vs 12au7. Reference: Datasheet. USA VARIOUS BRANDS 5814 or 5814A Preamp Tube. Pour la référence RCA, j'ai essayé un Clear Top 12AU7 classé en premier d'une même famille sonore par Francis IBRE et, à mon goût et au sein de mon système, c'est le SIEMENS 5814A qui reste le meilleur. Made in the United States of America for the military in 1965. 5814 is a 12AU7/ECC81 equivalent. Item: 6 x Jan Philip blue label 5814A/12AU7 tubesLocation: MelbournePrice: $115Item Condition: very good almost NOS. GE 5814A triple mica tubes 12AU7 These are the very desirable triple mica version. 17 Avg. With 12AU7, the plate resistance = 7. I have always wanted to see what all the hype is about with the Telefunkin's. Tube By Brand. There’s also a tape monitor circuit. Title: JJ ECC82 Datasheet 2003 Created Date: 3/12/2003 12:55:25 PM Siemens early long-plate 5814A. Triode, USA Customer Service M-F 9AM-4PM CT 1-800-774-3201 Sylvania 5814a for sale. Please advise if I should get some 12AU7 tubes or if the 5814 is the preferred substitute for this amp. Pretty happy with this preamp. All the rest are Dynaco Telefunken 12AX7 and 1 mullard 6x4. Tested on Amplitrex Tubes tester, test result printed on the box. Thus, even though it has a lower u (or amplification factor), the gain may be slightly higher depending on the circuit design. I’ve tried nearly every combination of tubes possible in this amp and this setup produced the tone I was chasing, so I am reluctant to change it. $20-$30 to know for sure seems a modest price to pay. Combined shipping availableThank you very much for your patronage!!Pieter 293328672105 5755,12AX7,5814 GE,RAYTHON United States, Sell U. Otherwise, there is no difference. All labeleing worn off but <> marking on the base of the tube. Raytheon JAN CRP 5814A triple mica 87/83 & 70/76 -$20 a pair Sylvania 5814A triple mica black plate-SOLD 94/91 & 98/92- $40 a pair Four pieces 12AU7 - all halo getters, test okay. It will not harm the amp. Solid construction and extreme attention make these Mullard tubes both high in quality and reliability. Jun 27, 2015 · DIFFERENCE OF PREAMP VALVE 12AX7 and 12AU7 masahall. All tubes tested on my B+K tube tester with no leaks or shorts. The better Euro stuff IMHO was the Telefunken and Mullard types (marked as ECC82) both excellent but most seem to prefer the smooth plate versions of the Telefunken. The use of this valve will give more headroom and clarity and lower the gain on a over distorted valve amp. Good luck. vs. Not sure how hard they are to come by, and they have 2 mica vs the 3 mica that regular 5 stars have. This page lists all of the 12AU7 tubes I currently have in stock, including all industrial and Superb in any application calling for a 12AU7, 5814A, or ECC82. 5 May 2015 Hi there, I've now listened and analyzed countless 12au7's (and it's 50's Amperex Long Plate Foil Getter (Bugle Boy) and Sylvania 5814 3-  Westinghouse 5814A, NOS; Made in USA; High Grade 12AU7. When that last happened, I switched to EH. MATCHED PAIR TUBES TUNGSRAM ECC82 / 12AU7 NOS Normal 0 21 false false false RO X-NONE X-NONE 100% New Item Returns must be sent to Moldova. Mullard 12AU7 Preamp Tube. That favored Sylvania dominant front line of the 12AU7’s is having a tough time in the red zone with those big RCA’s up front for the 12AX7’s. 12AX7 Question [GEAR] Will a 12AU7, which has a gain factor of 19 according to the tubestore, provide more clean headroom in an amp if it replaces a 12AX7 (gain factor of 100) in the preamp? The reason I am asking is that I am looking into buying a Kustom Defender 5h (one 12AX7 and one EL84) to run alongside my Fender Blues Junior. 3 volt only) CBS/Hytron 12AU7 (chrome plate retainer clips + square getter) CBS/Hytron 5814A (same internal details, equal to above) RCA 12BH7 (grey plate- equal to above in some circuits) May 18, 2014 · Upscale Audio's Kevin Deal reviews the Philips 12AU7 / ECC82 made by Mullard - Duration: 2:00. If even these are too much $, I can recommend Sylvania 6189 or Tungsram 12AU7 to try. $8 per order. The green print on the glass reads JAN 5814A. The 5814A is a military/industrial grade 12AU7 with low noise and high-reliability spec. Text in other languages (may differ) Dimensions (WHD) incl. 5814a vs 12au7

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