Siemens 12ax7

All tubes from the same date/batch code T9 = August 1963. Right now I have about 15 hours on to the tube. the 12AZ7 was a tube designed for automotive use and is a 10k hour tube selected for uniform output with a varying filament voltage. The matched 5687 tubes sextets waiting to be auditioned in this test were. Soundstage and tonality are equal on both tubes. 3V, 350mA operation. PHOTO: Siemens triple mica E83CC ab2450, It happens that the Siemens triple mica E83CC is my favourite 12AX7 / ECC83- especially in phono stages, along with the ordinary Philips/Amperex/Valvo ECC Found total of 200 records, Query: valvo +ecc83 in Tubes Asylum, Time: 0 sec. Choix des lampe de preampli 12AX7, 5751, 12AY7. Both tubes test as new with phono / V1 grade noise levels. RCA 12AX7 ECC83 Long Black Plates Vacuum Tube Strong & Balanced The measurements provided were made on a Triplett 3444 that has been modified to test tubes in accordance with the original manufacturer's stated test conditions, including bogey values. These are extremely rare, triple mica, ultra-low noise premium 12AX7 tubes. e) 12AX7 Mullard "long plates" 1950's. New production tubes from JJ, Sovtek and Black Sable treated JAN Phillips 5751 NOS!. Telefunken and Siemens are the brands most often spotted, although several of the Mullard factories made these for various labels. Turns out the mullard. You can get some 40's and 50's round plate 12BZ7's and if the unit can stand a little more filament current will work as a 12AX7 sub. RCA 12AX7 RCA NOS LONG BLACK PLATE 12AX7 OUT OF STOCK AMPEREX (SIEMENS-GERMANY) PQ GOLD PINS $75. One matched pair of Siemens & Halske Munich E83CC tubes (their answer to the ECC803S). This features the super-rare Siemens silver plate 12AU7, said to sound as good as the legendary Telefunken ECC802S. Z Carmen Ghia through a "cheapo" 1x12 cabinet (with alnico speaker) from Ruby Tubes. I love and appreciate tube based audio gear and own sixteen pieces of tube gear between my two reference systems. Tube Depot carries a selection of 5751 Pre Amp Vacuum Tubes. Re: Tube Rolling 12au7, 12ax7 Reply #78 - 04/21/16 at 10:51:56 Apologies for jumping in on this subject with a slightly unrelated posting but I am hoping that someone may find this useful if you have not followed my self build ZP3 saga on the forum. I paid $190. More highs: try the ribbed-plate Telefunken, long-plate Siemens, Raytheon black-plate. They have the four seams on the top like all Phillips Ie: Valvo, Mullard, Amperex, Siemens, etc have. Even the standard types made in Heerlen (shown in the first two pictures on the left side and labelled Amperex, Valvo, Philips a. beautiful sounding 12ax7 tubes as displayed REAL SIEMENS FACTORY CODES: I62 ≠4F and I63 ≠9J ≠ is the symbol of the Siemens Halske Munich W. Z Carmen Ghia through a "cheapo" 1x12 cabinet (with alnico speaker) from Ruby Tubes. Soundstage and tonality are equal on both tubes. Siemens Silver WD7025 Manuals Manuals and User Guides for SIEMENS Silver WD7025. ECC83: This is the European version of the 12AX7, and is identical to it. Etched Siemens & Halske Munich Plant date codes on the glass. The matched 5687 tubes sextets waiting to be auditioned in this test were. What I am after now is a 6SN7 and KT88 SE amp. cuz it's pretty-much the same tube as the mullard 12ax7, (mullard sent its mf'g equipment to japan for matsushita to make them), and it's usually cheaper than new production tubes. d) ECC803S = 12AX7 Telefunken West Germany Gold Pins. Germany factory. Le Telefunken 12AX7 sono note per durare migliaia di ore, qualcuno sostiene possano arrivare tranquillamente a 100. NOS Situation: Not good. This is our collection of DIY and Hi-Fi Audio Schematics. The official history of GEC gives the birth of the enterprise as 1886 when Gustav Binswanger (later to change his name to Gustav Byng) employed a fellow German immigrant called Hugo Hirst. Labels are very fragile as chalky white printing from that era comes off easily with contact. ECC83: This is the European version of the 12AX7, and is identical to it. There was a 12AX7 shoot-out in the Vacuum Tube Valley #14 issue for guitar amps. The midrange especially is fabulous. Good quality tube if you don't care about logos. One matched pair of Siemens & Halske Munich E83CC tubes (their answer to the ECC803S). Right now I have about 15 hours on to the tube. Product Information. We have tried them in everything from phono preamps to line stages and amplifiers. RCA 12AX7 ECC83 Long Black Plates Vacuum Tube Strong & Balanced The measurements provided were made on a Triplett 3444 that has been modified to test tubes in accordance with the original manufacturer's stated test conditions, including bogey values. We had just run out of this tube not to long ago, and it was looking grim for all our customers who are big fan. I have a possible line to score some NOS 60s RFT valves, 12AX7 and EL34, from east Germany. 5751 tubes are generally made to industrial standards and are found with both double and triple mica. Rare Telefunken Ecc803s Tube Siemens 12ax7 Ecc83 E83cc B759 Tested Balanced 7025 - $500. - Siemens chrome plater double getter support ECC82 - Marconi toast plate square getter wrinkle glass B329 (Mullard made) And the surprise of the day could well be the Chinese 12AU7. 1 拍賣網站 找露天全站商品 找此分類商品 找此賣場商品. And as for EH…they are fragile,unreliable, try some NOS Siemens and you will not believe your ears,but then again maybe. Hard to find good ones. De LPS was de eerste buis die gebruik maakte van een spiraalvormig filament. 12AT7 Siemens West Germany NEW (NOS) These are UNBRANDED BULK tubes that say only 12AT7 West Germany on them. sometimes it's hard to determine where tubes come from because everyone relabeled a lot. c) E83CC Siemens West Germany triple mica 1960's. By Siemens. My Favorite Tubes and Their Substitutes by Robert H. But, that is a great find/purchase there you found. Bare in mind there were lots of relabelling in this period in US between these firms just like MO and Mullard in the UK and Telefunken and Siemens in Germany (substitute France, italy favourite here as well). Most tubes with ECC83 listed on the label are European, and the ones in demand are Telefunken, Amperex, Mullard, and Siemens. Very quality tubes and it is simply amazing how almost all tubes are practically identical. 1960/s 2 x super selected 12ax7 ecc83 original siemens double arm getter nos - eur 59,90. E188CC / CCa Siemens balanced Vacuum Tube, Valve, Röhren tested NOS NIB. Double Triode Quick reference data • Anode current Ia=10,5mA • Transcoductance S=2,2mA/V • Amplification µ=17 Heating Heating is indirect by AC od DC, with serial or parallel supply. Very musical and desirable tube, Siemens Long-Plate 12AX7/ECC83 Low-Noise NOS Audio tube, rare painted-glass bottom mCP codes, made for audio! This version offers smooth highs, lots of open air, excellent realistic bass response, smooth extended midrange for audio applications, or for the guitarist get for that deep world renoun tone with high. Expected price is 6800/-. Siemens introduced their own super ECC88 / 6DJ8 at the same time under CCa type. Similar tubes from Brimar or Siemens Brimar. Tested in my VOX and sounds very strong, beautiful, clean and silent. Other amps use 12AU7 or 12AT7 tubes, which are similar to the 12AX7 but have lower gain. A PRECISION MATCHED VINTAGE QUAD of very nice strong & early 1960s era Telefunken 12Ax7 see beautiful photos of glass - exhibit E Munich factory / ECC83 tubes These are all from the very early 1960 s They are beautiful examples of the very first of Telefunkens offered with the more rugged 14mm tall. musicus, The Siemens triple mica E83CC is, by a good margin, my overall favourite 12AX7- energetic, effortlessly dynamic, refined in detail, natural timbres, wonderful spatial imaging, transparent, quite neutral, and quiet- about the perfect phono stage tube. 12ax7 Siemens. They are within 1 ma of each other as your said they would be. siemens 德國西門子 ecc83 12ax7 50s 長屏 圓環 一支一標(共3支) 露天拍賣-台灣 NO. This is the most sought after 12AX7 variant in the world. Rare Telefunken Tested Rare Ecc803s Telefunken E83cc Tube Siemens 12ax7 7025 Ecc83 B759 Balanced Rare Telefunken Nos Nib Quad 6sn7gtb Itt Tube's High Quality 5692 Black Plate's Vintage 6sn7 B65 - $395. My Audio Note M2-B linestage sounds the best with Siemens ECC88's or E88CC's in it. JAN5755( =12AX7=ECC83) Dependability, consistency, stability is very good, it is the factory that produces the high-quality stereo products and good choice of the export product, it is a edge toll that fevered fans of D I Y stereo upgraded the tone quality of audio-frequency amplifier of the gallbladder machine too. com'da bulabilirsiniz. Bought these based on the description but was looking for a tube that can match the Siemens 6AK5W Blue Glass tubes I bought for my Little Dot MKII. More commonly labeled a Telefunken tube, it was responsible for delivering the lower sounds that were transmitted through radio waves. 1 (modified) better with Amperex, especially the A-Frame ECC88's. ) German made Valvo (Berlin) or Siemens/Halske (Munich) ECC83 or E83CC. If I could even find some. New production tubes from JJ, Sovtek and Black Sable treated JAN Phillips 5751 NOS!. Heaters can be parallel connected for 6. Basically, the standard 12AX7 spec that applies to 12AX7 / ECC83 / 7025 tubes, has a reference of 1. Register to access all of the benefits reserved to registered users or click on login if you are already registered. By better I mean, bigger soundstage, more highs, more lows, more 3D depth, more clarity, more of what these tubes have. NEW - WITH ORIGINAL BOX. 10 results for telefunken 12ax7 Save telefunken 12ax7 to get e-mail alerts and updates on your eBay Feed. It was produced as an aftermarket product and sold widely to distributors throughout the world. Talking Philips, Miniwatt, Amperex, Mullard, and Siemens here. Vintage ECC83/12AX7 and 5751 valves If this is your first visit, be sure to check out the FAQ by clicking the link above. 2 Nos Vintage Brand New Tube's Tungsol 6550 Kt88 And Ecc83 12ax7 3 Getter 3 Mica. The midrange especially is fabulous. Last year a friend built a Glassware Akido Tube Buffer to use as a preamp with my VTA ST-120. This is a quote from the dealer's website: "The late 1960s Siemens E83CC tubes in this precisely matched pair are premium quality 12AX7 / ECC83 tube. Other amps use 12AU7 or 12AT7 tubes, which are similar to the 12AX7 but have lower gain. Each tube has individual serial number in RED. ECC83 versus 12AX7: What is the Valve Used For? In a guitar amplifier, this valve is used everywhere gain is needed. Particularly in the phono stage. 000 hours) that is considered by many audiophiles the Best 12AX7 Ever Made. ECC83 (analog: 12AX7, ECC803S). Watford Valves - Test Reviews ECC83,12AX7 Test Reports 1998-2002 INTRODUCTION: OBJECT OF THE TEST To establish the best sounding ECC83/12AX7 of both New Old Stock and current production variety. For the bias control my favorite settings are maximum for Gilmour tones and 10 notches below maximum for my original tones, which is roughly 2:30 on the knob. ECC83: This is the European version of the 12AX7, and is identical to it. DESIGN BY F. 5번: Siemens e83cc 12AX7 계열에서는 최고로 처주는 징공관 6번: Siemens ecc83 지멘스 12A*7 계열의 진공관들은 그다지 특징있는 소리 를 내주는 것을 본적이 없는데, 현대관들에 비해서는 좋은 소리를 내주는데 썩 기분좋은 사운드는 아니다. TFK is too mid rangey for my tastes. They were used for approx. ECC83/12AX7A-C T. Most tube amps need multiple preamp tubes to perform various functions. c) E83CC Siemens West Germany triple mica 1960's. In the measurement test I have seen 38Vrms with a distortion of only 1. The product {product} was successfully added into your cart. The problem is I do not have all the related document in these tubes. Tube Basics and FAQ Grading and Matching Vacuum Tube Warranty & Return Policy Cryogenic Treating Tube Testing Equipment Why We Don't Sell Certain Brands. MINT NOS NIB Mid-1960s Siemens & Halske 3-MICA E83CC Halo Getter tubes RCA Label and box. $18 ea: 12AX7 USA Used: 12AX7 USA USED These are good quality tubes which are a good choice where price is an issue. Thegearpage. 6 2153 2200 16 / 17. These are a slightly lower gain tube that can be used as a replacement for. musicus, The Siemens triple mica E83CC is, by a good margin, my overall favourite 12AX7- energetic, effortlessly dynamic, refined in detail, natural timbres, wonderful spatial imaging, transparent, quite neutral, and quiet- about the perfect phono stage tube. Are telefunken 12AX7's the best? | The Gear Page. ) German made Valvo (Berlin) or Siemens/Halske (Munich) ECC83 or E83CC. Presenting plate 12 for sale right now. A Mini Review of Three 12AT7 Tubes. Some people like to use those little references that say if you want less gain than a 12AX7, use a 12AT7, as it has only 70% of the gain of a 12AX7 etc. Preamp Valves 12ax7 ecc82JJ, 12ax7M | Hot Rox UK graded (see options on the valve page). 1 - 12AX7 Tung. Midrange bloom is almost as good as the Siemens. 12AX7 / 7025 / ECC83 MESA 12AX7's are premium grade preamp tubes that provide the maximum level of high gain output and overall tonal quality with unsurpassed consistency and reliability - They possess a smooth and balanced response across the tonal spectrum and are extremely lively, open and expressive. The Pavanes replaced a one-year old set of NOS Siemens ECC81s purchased from one of the best and most reliable tube vendors. Siemens & Halske was a quality German tube manufacturer from way back. Title: 6AV6 3AV6 12AV6 Author: General Electric Subject: JA-FP-2000-11-10 Created Date: 11/10/2000 8:40:27 PM. Very musical and desirable tube, Siemens Long-Plate 12AX7/ECC83 Low-Noise NOS Audio tube, rare painted-glass bottom mCP codes, made for audio! This version offers smooth highs, lots of open air, excellent realistic bass response, smooth extended midrange for audio applications, or for the guitarist get for that deep world renoun tone with high. Or 6SN7/EL34 amp. Z Carmen Ghia through a "cheapo" 1x12 cabinet (with alnico speaker) from Ruby Tubes. Similar tubes from Siemens Siemens. I have Siemens & Halske NOS 12AT7 equivalents in my 300B amps (as driver tubes). All tubes from the same date/batch code T9 = August 1963. another 12ax7 tube i would recommend is the siemens from 1960's. AMPEREX Bugle Boy 12AU7 used. The late 1960s Siemens E83CC tubes in this precisely matched pair are premium quality 12AX7 / ECC83 tubes. The 5687 was designed by TungSol in 1952 to be a superior audio tube. The white labels on the glass are missing. Good read, if you can find the magazine. Made in Germany code ≠ 12AX7. NessTone Amplifier Tube Sales. The Sovtek 12ax7 long plate LPS tube is the bomb for the Phase inverter no kidding if you use gain ! ***** awesome tube JJ tesla ecc83-a even EQ tone without fizz or glaring highs ! Sovtek 12ax7 tubes sound like tubes at least RI Tungsol 12ax7 do crunch well enough but short plate brighter than wanted for me !. amp companies (Fender and Mesa/Boogie, for example) use either 6L6s or 6V6s. They should arrive Monday. Presenting plate 12 for sale right now. They are definitely Siemens defined by the 'not equal' sign in your sketch. New production tubes from JJ, Sovtek and Black Sable treated JAN Phillips 5751 NOS!. amp companies (Fender and Mesa/Boogie, for example) use either 6L6s or 6V6s. Excellent 12AX7/ECC83 replacement in line stage or input of output amplifier when a small amout of gain reduction is wanted. " Yeah that one's a goal of mine. TubesForAmps is your source for replacement vacuum tubes. All of the tubes listed here are recognized to be among the finest sounding, longest lasting and most reliable ever made! NOTE: Tubes are added regularly and the inventory changes so please call/email us if you have a specific need. ECC83: This is the European version of the 12AX7, and is identical to it. tubemongerlib. Expected price is 9400/-. Triple mica and O-getter with douple support. 12ax7 Brimar. " For your consideration is one (1) RARE PREMIUM TESTS NOS STRONG SIEMENS-HALSKE E83CC 12AX7 ECC83 (ECC803S B759) LOW-NOISE GUITAR & AUDIO TUBE with 'O' Getter, 14mm Grey Plates, Clean Glass, Clean Thick Getter Patch, Seams on Top and Copper. Bass definition is much better on Sophia. Bare in mind there were lots of relabelling in this period in US between these firms just like MO and Mullard in the UK and Telefunken and Siemens in Germany (substitute France, italy favourite here as well). Germany by Telefunken (ULM Factory). i) 12AX7 Telefunken ribbed plate. An erster Stelle stehen hier Raritäten von Telefunken, Siemens, Philips, Valvo, Mullard und Sylvania, Alle nachfolgend genannten Röhren sind 100% kompatibel mit den Typen E88CC (analog: 6922, 7308, 6DJ8) bzw. Bought these based on the description but was looking for a tube that can match the Siemens 6AK5W Blue Glass tubes I bought for my Little Dot MKII. Heater voltage Vf 6,3 12,6 (V) Heater current If 300 150 (mA) pins 9-(4+5) 4-5. 12AX7 Rogers, Audio, Double triode. A good balanced Mullard or Telefunken in the V1 spot in terms of an ECC83/12AX7 tube are both excellent choices if thats the tube type you want in the V1 spot. e) 12AX7 Mullard "long plates" 1950's. A matched pair of those would be several hundred dollars though? A pair of Philips Miniwatt 12AX7's is about the top one I've seen available. Many of these diy Audio Books contain schematics. The Mullard 12AX7 long plates have long been my favorite for phono stage, but these Sylvania Gold were definitely their equal. "Tube rolling" with quality vintage valves is a lot of fun and will produce wonderful improvements to the tone of valve driven hi-fi component and valve guitar amplifiers. 12AU7 / E82CC / 5814A SIEMENS GERMANY (detailed, wide-open sound, quiet, extended highs) - Decware Zbox (Unity Gain Stage) - Audio Note L2 Custom - Response Audio - Bottlehead - Ray Samuels Raptor E82CC=12AU7 Siemens Low Noise Pairs: (quiet and clear with extended highs) TO BUY E82CC Siemens branded VALVO and PHILIPS 1969-1973. More difficult to find but worth seeking are German made Valvo and the early Holland made Philips Miniwatt and Philips "SQ". as shown bid with confidence - 100% positive feedback combined postage offer on all items i can ship several smaller valves for no extra postage cost please wait for a combined invoice if buying multiple items always best price international shipping!. ECC83 / 12AX7 Double Halo Supports Make sure you are buying Real Siemens Halske 12AX7 tubes - They have double-halo-support-rods, shiny triangular or gray coated points ( 4 on top mica and 4 on the bottom mica) and the Siemens Halske ‡ codes in the glass. Adding to your cart. Make sure you are buying Real Siemens Halske 12AX7 tubes - They have double-halo-support-rods, shiny triangular or gray coated points ( 4 on top mica and 4 on the bottom mica) and the Siemens Halske ‡ codes in the glass. Choix des lampe de preampli 12AX7, 5751, 12AY7. Double triode preamp tubes manufactured in Canada by renowned Rogers. And most use 12AX7 (aka ECC83) preamp tubes. The Siemens 12AX7 ECC83 audio vacuum tube was first manufactured in Germany in the late 1930s. Like the 12AX7, this is not a hassle since virtually all hi-fi tube amps are of the parallel filament design. Tested good for transconductance. Right now I have about 15 hours on to the tube. Tube Price List EL84, EF804S, E180F, EL6, EL12. "siemens triple mica 12ax7, another very good ax7 at fairly "normal" price. My Favorite Tubes and Their Substitutes by Robert H. tubemongerlib. There was a 12AX7 shoot-out in the Vacuum Tube Valley #14 issue for guitar amps. 99 One 1974 NOS Mullard (Philips branded) 12AX7A tube - 163 B4D3 - Blackburn plant. We had just run out of this tube not to long ago, and it was looking grim for all our customers who are big fan. Rare vintage set of matching Mullard 12AX7: exact same date code. details about siemens ≠ halske 5751 ecc803s (ecc83 12ax7) triple-mica balanced low noise tube. Very quality tubes and it is simply amazing how almost all tubes are practically identical. After finished my simple 12AX7 tube preamp, I decided to try other medium mu tubes, including the 12AU7 and also this 6922. Both tubes test as new with phono / V1 grade noise levels. Double Triode Quick reference data • Anode current Ia=10,5mA • Transcoductance S=2,2mA/V • Amplification µ=17 Heating Heating is indirect by AC od DC, with serial or parallel supply. The 12AU7 can only be used in parallel filament circuits. cv492 Siemens. this uses just half a tube per channel but at full voltage + i cannot hear anything bad about them, i like what i am hearing. ECC83: This is the European version of the 12AX7, and is identical to it. May I be so bold as to identify your ECC83 valve. Expected price is 9400/-. These miniature glass 9 pin double triodes come with gray plates, two thick mica spacers, and top halo getters. 5번: Siemens e83cc 12AX7 계열에서는 최고로 처주는 징공관 6번: Siemens ecc83 지멘스 12A*7 계열의 진공관들은 그다지 특징있는 소리 를 내주는 것을 본적이 없는데, 현대관들에 비해서는 좋은 소리를 내주는데 썩 기분좋은 사운드는 아니다. They were used for approx. There was a 12AX7 shoot-out in the Vacuum Tube Valley #14 issue for guitar amps. One matched pair of Siemens & Halske Munich E83CC tubes (their answer to the ECC803S). In most cases, they will sound better. New production tubes from JJ, Sovtek and Black Sable treated JAN Phillips 5751 NOS!. Positive Feedback ISSUE 76 november/december 2014. Flashing is bright and 90% of the lettering is left. By Siemens. You may have to register before you can post: click the register link above to proceed. Register to access all of the benefits reserved to registered users or click on login if you are already registered. Siemens & Halske was a quality German tube manufacturer from way back. I popped it in the voltage amp spot in my MC240 and I was pretty impressed. 12ax7wa Siemens. Please Click-on Crown to Enter Store "WE SPECIALIZE IN TONE. My Setup: I have an R8 with wax-potted Wolfetone Marshallhead PUs, a TH30 head, with 2 112 Orange cabs, one with a Vin30, the other with a Scumback H series. 1960/s 2 x super selected 12ax7 ecc83 original siemens double arm getter nos - eur 59,90. By Siemens. I must have the 6SN7 driver stage (front end). I have 3 of them in a TLA vl1 unit which i pass some of my summing channels through. NOS Siemens E-288CC Dual Trode Gold Pins, Low Noise $250. com/bVEsqi3 https://imgur. " Yeah that one's a goal of mine. More highs: try the ribbed-plate Telefunken, long-plate Siemens, Raytheon black-plate. Does anyone know anything about these tubes (who made them, etc. These are not bad tubes, however, I bought some Sylvania 6AK5W's for $10 that has better bass response than these RTC/Mullard Black Plate tubes. PHOTO: A pair of Siemens and Halske tripe mica E83CC XLR80R, For me, there is a 12AX7 tube that clearly meets your requirements. TubesForAmps is your source for replacement vacuum tubes. Siemens 6av6 643-0ba01-1ax0, Operator Panel As Photo, Sn8626, Dφm , Dhltous. DIY and Hi-Fi Audio Schematics. Does anyone know anything about these tubes (who made them, etc. Even as it sound, by far, the least refined of all 12AU7 today, it actually gives an excellent bass extension and control to its merit!. NOS Situation: Not good. ECC83: This is the identical European equivalent of the 12AX7. One day, in the middle of work time, a colleague entered my office to ask something and from the corner of my eye I glimpsed a man who was staring like hypnotized into an amplifier. My Musical Fidelity X-Cans v. Get free shipping plus 65% off Siemens Ediswan 12ax7 Ecc83. The ECC83 Gallery 12AX7 E83CC 7025 ECC803S: 5751 CV4004 CV492 B339. Register to access all of the benefits reserved to registered users or click on login if you are already registered. this uses just half a tube per channel but at full voltage + i cannot hear anything bad about them, i like what i am hearing. Best of the US made 12AX7 for clarity and clean tones throughout frequency range. Shipping fees only $2 per tube. Good read, if you can find the magazine. We have all heard the chatter about telefunken,mullard bugleboy,and thats exactly what it is, chatter. This is the most sought after 12AX7 variant in the world. 12AX7 Rogers, Audio, Double triode. Re: Favourite ECC83/12AX7 brands had a penta labs in the v1 it was nice , but the rft was a perfect balance. Bought these based on the description but was looking for a tube that can match the Siemens 6AK5W Blue Glass tubes I bought for my Little Dot MKII. another 12ax7 tube i would recommend is the siemens from 1960's. By Siemens. They were used for approx. Soundstage and tonality are equal on both tubes. Tubes with black or grey plates, with double or triple mica, from mid fifties to early seventies. Made in W. It's from the Munich factory according to the code on the tube. ) Sylvania black plate mil spec JAN-JHS 12AX7 (early 1950's), square getter rings. Other amps use 12AU7 or 12AT7 tubes, which are similar to the 12AX7 but have lower gain. The 5687 was designed by TungSol in 1952 to be a superior audio tube. A matched pair of those would be several hundred dollars though? A pair of Philips Miniwatt 12AX7's is about the top one I've seen available. Most tube amps need multiple preamp tubes to perform various functions. 9% 95% 1620 1600 104/100 12AX7 Sylvania Gray Plate square getter halo 1958, 1959 * 8. Deze buis werd door Sovtek speciaal voor audio toepassingen ontwikkeld. shipping) more. The late 1960s Siemens E83CC tubes in this precisely matched pair are premium quality 12AX7 / ECC83 tubes. Vintage ECC83/12AX7 and 5751 valves If this is your first visit, be sure to check out the FAQ by clicking the link above. Siemens Rohre E83CC Low Noise version, laboratory screened to be within 3dB theoretical noise limit of the 12AX7. The midrange especially is fabulous. My Setup: I have an R8 with wax-potted Wolfetone Marshallhead PUs, a TH30 head, with 2 112 Orange cabs, one with a Vin30, the other with a Scumback H series. com 12AX7 ECC83 E83CC ECC803S 7025 CV492 CV4004 CV4035 ECC803S 7025 CV492 CV4004 CV4035 M8214 M8137 6057 B339 12AX7 - Pre-war Smooth Plate. ECC83/12AX7A-C T. 2x Mullard 12AX7 ECC83 Vacuum Tubes Tested Pair. Telefunken,ECC83(12AX7)では管底にダイヤマークがあるかないかで純正のテレフンケンかを判断します。 最初の写真のように9本のピンの間に正方形の出っ張りがあるものをダイヤマーク付きといいます。. The Sovtek 12ax7 long plate LPS tube is the bomb for the Phase inverter no kidding if you use gain ! ***** awesome tube JJ tesla ecc83-a even EQ tone without fizz or glaring highs ! Sovtek 12ax7 tubes sound like tubes at least RI Tungsol 12ax7 do crunch well enough but short plate brighter than wanted for me !. The Pavanes replaced a one-year old set of NOS Siemens ECC81s purchased from one of the best and most reliable tube vendors. These are extremely rare, triple mica, ultra-low noise premium 12AX7 tubes. I tried other brands of 12AX7's in V1 and V2 including EH, Fender (7025) and Ruby with varying results but the biggest change came with putting a 12AU7 in V1. BOUNDLE OFFERS × CART UPDATE. Feedback received via email: "Hi Rachel, I received the 12AX7LS super tubes and their performance is super! Put the new tubes in and turn on, first 10 mins, comparing to Psvane 12AX7-TII…the new super tube has lower noise floor, sound is more dense and transparent, bass is deeper and better bass layering. Thousands in stock. The main event is the "Battle of 12AX7" which is something I have tried to organise for the last two months or so. Does anyone know anything about these tubes (who made them, etc. More commonly labeled a Telefunken tube, it was responsible for delivering the lower sounds that were transmitted through radio waves. 12AX7 Gold Pin (also ECC83, 7025) Preamp Vacuum Tube. I am hoping as the tube breaks in that it will be as good as the Siemens 12AX7. e) 12AX7 Mullard "long plates" 1950's. PORSCHE SIEMENS CORKSCREW WINE BOTTLE OPENERBrand New in the Box with Seal Limited Stock No Reserve, Items in the Worthopedia are obtained exclusively from licensors and partners solely for our members’ research needs. This is the most sought after 12AX7 variant in the world. This is a quote from the dealer's website: "The late 1960s Siemens E83CC tubes in this precisely matched pair are premium quality 12AX7 / ECC83 tube. I know that it's not direct replacement and 12AX7 has about 30% more gain factor. 5751 Siemens. What I am after now is a 6SN7 and KT88 SE amp. Most tubes with ECC83 listed on the label are European, and the ones in demand are Telefunken, Amperex, Mullard, and Siemens. on my HICKOK 536 where 950/950 is NOS. The standard build specified using 12AU7 tubes. カード決済 上記カードにてお支払いができます。カード決済は、クレジットカード決済代行のイプシロン株式会社の決済代行システムを利用しております。. Best of the US made 12AX7 for clarity and clean tones throughout frequency range. I have Siemens & Halske NOS 12AT7 equivalents in my 300B amps (as driver tubes). 12ax7wa Siemens. All tubes from the same date/batch code T9 = August 1963. Midrange bloom is almost as good as the Siemens. The white labels on the glass are missing. perhaps the amperex is just a better tube to my ears!? The model number just refers to the gain structure, 12ax7/ECC83 being the highest, then there is 12au7 which is the same as ECC82 and so on and so fourth. The best prices on semi i3443 amperex and other related listings. ) German made Valvo (Berlin) or Siemens/Halske (Munich) ECC83 or E83CC. Le Telefunken 12AX7 sono note per durare migliaia di ore, qualcuno sostiene possano arrivare tranquillamente a 100. most people want to swap them for a 5751 or avoid them entirely. Siemens Rohre E83CC Low Noise version, laboratory screened to be within 3dB theoretical noise limit of the 12AX7. NEW - WITH ORIGINAL BOX. The ECC83 Gallery 12AX7 E83CC 7025 ECC803S: 5751 CV4004 CV492 B339. tubemongerlib. QUAD 1960s Siemens Telefunken 12AX7 Ecc83 14mm plate GM matched 4pcs 115% in old boxes. These tubes were manufactured in East Germnay by the RFT company. You can get some 40's and 50's round plate 12BZ7's and if the unit can stand a little more filament current will work as a 12AX7 sub. New production tubes from JJ, Sovtek and Black Sable treated JAN Phillips 5751 NOS!. i) 12AX7 Telefunken ribbed plate. Telefunken https://imgur. - How many years was it in production? - Is the voltage easily switchable from 240 \ 115 or does it have to go to the factory? - I think it's a smooth volume pot- any idea what it is? - It's supposed to use Siemens 12AX7 X2 and Siemens ECL86 X4. cuz it's pretty-much the same tube as the mullard 12ax7, (mullard sent its mf'g equipment to japan for matsushita to make them), and it's usually cheaper than new production tubes. I also wanted to experiment sometime with some Siemens NOS triple micas the 5751 is a lower gain 70 vs. Gray ribbed plate. The late 1960s Siemens E83CC tubes in this precisely matched pair are premium quality 12AX7 / ECC83 tubes. 12AX7 General Purpose, Misc. 17mm Smooth Long Plate Manufactured on Original Telefunken Equipment after it moved from Germany. I also advise searching the net for all of the web sites put up by tube amp geeks to help you get a lot of great tips on how to get the response you want out of your amp with just. Sylvania 6CA7’s, fat bottles, matched prs. Vintage Audio Valves have such a wonderful rich musical tone & will enhance your equipment's sound. These are original ECC83 12AX7 Siemens&Halske, made in Munich plant in 1967. siemens シーメンス 真空管 ecc83/12ax7 同ロット 3本セット 箱付き ∈ 56f2b-16 出品者 toomookaanaa ( 評価 ) 年間ベストストア 各分野の年間ベストストアを決定する. 100 12AX7 variant. 5번: Siemens e83cc 12AX7 계열에서는 최고로 처주는 징공관 6번: Siemens ecc83 지멘스 12A*7 계열의 진공관들은 그다지 특징있는 소리 를 내주는 것을 본적이 없는데, 현대관들에 비해서는 좋은 소리를 내주는데 썩 기분좋은 사운드는 아니다. Only the highest quality and most consistent vacuum tubes earn the MESA Engineering® seal of approval. EHX Pedal Bag.