See our Best 12AX7 Review for more information. 99 per tube. As a Marshall guy, I love the way NOS Mullard 12AX7's just plain "fit" with my `74 Super Lead half stack. 666 with a conductance of 100 on both sides 1ea manufacture unknown 12ax7 tested on eico mod. Take a close look at the many pictures and see if this is the item for your collection. The last time I paid $50/each for 12AX7's they were NOS Phillips Herleen in the original boxes. Tube amps by Tom McNally Check my eBay listings for amps for sale tomsnj on eBay If you have questions or need some help, please email: [email protected] Unit of Measure: Each. I just went from a 12ax7 Tungsram ( and many other 12ax7's ) to a Sylvania 5751 3 mica black plate ( Yellow Label ) in my newly Upgraded Thor Audio Linestage and must say its the best 12ax7/5751 I have ever heard ( in my unit ). If this tube is still too "smooth" or mellow in your amp, I'd start looking at electrolytic bypass caps and main filter caps feeding these 12AX7 tubes. Call now! 516-314-0357. Find more of what you love on eBay stores!. 666 tube tester with a conductance of 95 or better on both sides and 1ea admiral 12ax7 tested on eico mod. A small inventory back in stock of this rare and excellent tube, all from the same military bulk tray. Clean, natural, just a hint of tube midrange bloom, with some nice sparkle on top without being too bright. Sylvania 12AX7's, 1950's 14mm black plates. So far it's a great tube and I have several old stock tubes like the 1957 rca long black plate 12ax7 and sylvania, raytheon, hytron, G. Fantastic guitar 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. 1950's Sylvania NOS 12AX7 Black Plate $124. Register to access all of the benefits reserved to registered users or click on login if you are already registered. I've used Angela Instruments to source things like Mullard & Amperex for this kind of stuff in the past but was wondering what other sources and what 12AX7 tubes in particular people have likedfor their mastering processors. Great for audio applications that uses the 12AX7 vacuum tube. ECC83 Telefunken 12AX7 Types My regular job does not have any connections with vacuum tubes, except for the music endlessly playing on my tube amplifiers. 1967 Mullard ECC83/7025 1950's RCA 5751 Black Plates 1950's Sylvania JHS. NOS 1962 vintage Brimar CV492. 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. They don't simply mean the type of vacuum tube (for example, 12AT7 versus 12AU7) - they already know the type that they will be using. Mullard 12AX7. They have long gray plates, copper grid posts, and halo getters. These can be used in any 9 pin preamp tube socket. A Comparison of Current Production 12AX7 Tubes. I did some online research on these tubes and learned that they are very good tubes. For preamp tubes, I want to know what is the best 12AX7 (and other preamp tube) I can buy for the money? Say $20 ($15-25)? I just can't envision spending $50 on a 12ax7. My favourite high gain amp 12AX7's are the late 80's / early 90's Chinese (square getter) tubes. bobtec wrote:My Green Lables are Sylvania organ pulls They sound best in Fender type Preamps. Sweet,a touch Forward,Dynamic and incredible inner detail. 12AT7=ECC81 Telefunken West Germany - reference pictures and comments Comments in Manley preamp: ----- Got the Fisher branded Telefunken 12at7 NOS from you -> very clear, fast, modest bass, very refined highs with no harshness, much better mid range detail, made the Manley preamp sound more expensive than it is. 00 The 1960s Telefunken 12AX7 / ECC83 tubes in this precisely matched pair have smooth plates and diamond imprints on the bases. This are high quality hi-durable, long-life ( > 5000 hours ) double triode tubes were made in USSR for the military equipment. NOS Tung-Sol 12AX7A are damn good for metal/rock as are Amperex bugle boys (white labels). Clean, natural, just a hint of tube midrange bloom, with some nice sparkle on top without being too bright. 6DJ8 / 6922 / ECC88 Amperex. The best of US's 5687 ever made. We carry a vast number of 12AX7 tubes to help you get the right sonic from your gear. NOS SYLVANIA USA JAN 12AX7 12AX7A ECC803S NOS DIGITAL BALANCED PAIR CREAM OF THE CROP STRONGEST SUPER-TUBES HIGHEST EMISSIONS - GREAT MATCHED PAIRS! How many times have you purchased what you read advertised as a balanced and matched-triode tube off the internet and have received mismatched or marginal tubes? Well, get rid of those!. Sylvania 12ax7 preamp tubes haven't been on my radar until I came across some posting about the Sylvania 12ax7 long black plates (D getter) being the "holy grail" of 12ax7s. The Tung-Sol 12AX7/ECC83 is the gold standard of preamp tubes favored by guitar tone junkies, and one of the most important links in your tonal chain. Psvane Acme Series 2a3 Vacuum Tube Matched Pair All New. 00 RCA 6DJ8 ECC88 NOS tube rca6DJ8ecc88 $39. If this tube is still too "smooth" or mellow in your amp, I'd start looking at electrolytic bypass caps and main filter caps feeding these 12AX7 tubes. Welcome to TubeDepot Javascript must be enabled to use this site. These are black or grey anode square getter in original/white box. 12AD7: Non-microphonic/low hum version of the 12AX7 vacuum tube made by Sylvania. My tubes were bought NOS from a well known local dealer and have at least a few hundred hours on them. 12AX7 Pre Amp Tubes Available But NOS Are Expensive As I've looked at all of the great suggestions you all have been kind enough to provide, it appears that the NOS tubes are the more prominent. 12AX7 TELEFUNKEN SMOOTH PLATES NOS (excellent preamp 12AX7, low noise, very smooth extended highs, very good in phono stages, low noise) Se Electronics Z5600a II Tube Condenser mic Veloce Audio Line Stage and Phono Amp Nagra PL-L preamp VTL 7. SYLVANIA 12AX7A/WA 1960S &70S $40 - OUT OF STOCK 12AT7 NOS SYLVANIA wide black plates. 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. A tube I thought is better than the 3rd place Mullard 12AX7 round plate are the Raytheon 5751 windmill getter. The 12AX7 Sylvania tubes are known for their long plates. RUSSIAN DOUBLE TRIODE TUBE 6N2P-EV. I bought an amp before to use these tubes. Matched Pair 1960 Sylvania 12AX7 Tubes Long Plate Super Strong Balanced (Qty Av). We recently landed on a treasure of over 3000 tubes, and will be posting them up for sale over the next few months. All tubes were bought from reliable vendors, some were NOS, some tested NOS. Many tube manufacturers would buy their tubes from overseas vendors such as Mullard and put their name on it. Good price, can be easily found for less than $50. made 12AX7. 00 Per Matched Pair. 6bm8 / ecl82 mullard, amperex $25 - out of stock 6bm8 / ecl82 various us brands $20 - out of stock. " Operating voltage is 12 to 15V. 1950's Sylvania NOS 12AX7 Black Plate $124. Current Production 12AX7 Tubes I've selected Mesa Boogie SPAX7 (no idea what Mk. EQUIPMENT USED The amplifiers used were: 70 's Fender twin reverb fitted with J. These are black or grey anode square getter in original/white box. Rod ~ World Tube Company Mullard The Mullard 12AX7 / ECC83 is a Very Smooth Sounding tube. Supplied in white boxes. 99 per tube. These are a slightly lower gain tube that can be used as a replacement for. Today, a look at almost any guitar tube amp, be it Fender , Marshall , Vox , or any other, will prove the 12AX7 / ECC83 / 7025 tubes are here to stay. 666 with a conductance of 100 on both sides 1ea manufacture unknown 12ax7 tested on eico mod. Made in Herleen Holland with appropriate delta production code. These 17mm black plate 12ax7 are rumored to be Briam May's favorite and have excellent clarity and sound beautiful when overdriven in a guitar amplfier, especially recommended for the Vox AC30 and other clean amplifiers where you want a balance of warmth and sparkle!. NOS SYLVANIA USA JAN 12AX7 12AX7A ECC803S NOS DIGITAL BALANCED PAIR CREAM OF THE CROP STRONGEST SUPER-TUBES HIGHEST EMISSIONS - GREAT MATCHED PAIRS! How many times have you purchased what you read advertised as a balanced and matched-triode tube off the internet and have received mismatched or marginal tubes? Well, get rid of those!. Find great deals on eBay for 12ax7 sylvania and 12ax7 sylvania nos. Find many great new & used options and get the best deals for 1 Sylvania 12AX7 ECC83 NOS Tube Tall Plate *Rare Long "D" Gtr Tests 100%+ USA! at the best online prices at eBay!. Because of the high gain, 12AX7 in V1 has a lot of effect on sonics. One of the most desirable American made 12AX7 type tubes. ) ( Sylvania Pair) Sylvania NOS 1964 same date codes 1 low noise pair) Sylvania NOS 1964 same date codes 1 tube) and 1 tube) and Good Ma range Good Gm = - Recommended for Manley Modwright Audio Note Ray Samuels Ayon Kondo Mastersound Audio Thrills Loth Marsh See more. made 12AX7. The RCA clear tops are good (for the 12AU7 spot) but I would try and get some NOS Mullard for the rest ( NOS EL84 are still pretty inexpensive). Vintage Sylvania 12ax7 tubeIn the original box and tests above NOS but I cannot say for certain it is NOS. For the price, this tube has the cleanest high end of any of the similarly priced modern 12AX7. Clean, natural, just a hint of tube midrange bloom, with some nice sparkle on top without being too bright. Mullard 12AT7 made in the UK NEW (NOS) These are the same tubes as above but have different branding like GE, Sylvania, etc. Long grey plate, partial green brand (some tubes have clearer brand than others), etched '12AX7', halo getter. RCA and Sylvania first introduced the 12AX7 to the world in the late 1940s. Customer evaluation for "12AX7WA - JAN Philips/Sylvania, USA / NOS" Write an evaluation Please verify your testimonial by clicking on the link sent to your email after submitting your text. They are VERY reliable and have tons of gain! I have a tube tester and these tubes are always at the high mark for output, in fact sometimes 30% higher than other brand new tubes. Unique box plate design, gold pin, absolute high end 12AX7 tube you can find on the market, compete head-to-head with Telefunken ECC83 and Mullard CV4004. Psvane Acme series have 845, 300b, 802, 211, 2a3, 274b and 212 tubes. Just put a NOS Sylvania JHS 12AX7 in my integrated amp. Euro Audio Team-Eat ecc803s/12ax7 pair of new in box gold pin tubes These ECC803 Double Triode pair of valves comes with a Cool Damper pre fitted which offers a more controlled and deeper bass, a more open and detailed sound stage, and crisper and greater dynamic range. 99 per tube. ECC83 Telefunken 12AX7 Types My regular job does not have any connections with vacuum tubes, except for the music endlessly playing on my tube amplifiers. They are low flashing You can use them in V-2 on a Marshall. 1967 Mullard ECC83/7025 1950's RCA 5751 Black Plates 1950's Sylvania JHS. Discussion in '"Boat Anchor" & Classic Equipment' started by W7UUU, Aug 28, 2016. Amperex JEP 6922 Matched Pair, New Condition, 66-52 Date Codes Gold Pins, Gm = 17,000 for all four sections. Unit of Measure: Each. 12AX7 - ECC83 B9A indirectly heated twin triode is one of the most popular pre amp valves around. Tube amps use multiple tubes, and the first position is referred to as V1. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of current production options to choose from. 5751 tubes are generally made to industrial standards and are found with both double and triple mica. FOR SALE ARE SEVERAL 1960'S 12AX7'S PRE-AMP TUBES FOR SALE pulled from Vintage amps. Looking for ECC83, 7025 Tubes? You can use any current production 12AX7 tube as 12AX7A, ECC83 or 7025. After using this tube in all of my guitar amps (12) both vintage (1954) and brand spanking new I can say with great confidence that this is a solid, great sounding and durable tube. These are early Sylvania 5751s from the '50s and they are distinguished from their later brethren by their black plates. and tung sol 12ax7's. Made in USA by Sylvania. Good find today: Nice Sylvania Tube caddy fully loaded with good NOS tubes. Free shipping on orders $105 and over. This late 1950s-early 1960s Sylvania 12AX7 tube has long gray plates with copper grid posts and a halo or D getter. Test data is actually perfect. NOS Sylvania Gold Brand 12AX7 (6201) tubes ($35 each, discount on multiple) I am here to sell NOS Sylvania Gold Brand 12AX7 (6201) tubes. SYLVANIA 12AX7 '50s Long blackplates OUT OF STOCK $45. Found 62 records in Search of Tubes Asylum. A Comparison of Current Production 12AX7 Tubes. So the price is just the normal price for good USA NOS 12AX7. 001: 5687 G. Some RCA are referred to as long plates or black plates, other are grey plates. 12AX7 tube is the most common preamp tube today. It only has 70% of the gain that a 12ax7 has. These are the same as the JAN Sylvania 12AX7WA, but were sold to distributors for general public consumption. They are usually short plates and less likely to be microphonic. I bought an amp before to use these tubes. 002: 5687 Mullard: $25. It's high gain makes it popular in guitar amps, though it's also widely used in HiFi amps, especially in phono stages. I've tried Mullards, Telefunken, RCA, RFT, and most of the current regular production tubes and I like the NOS Tesla 12ax7's the best for hard rock tones/amps. Or even close to ANOS. The Mazda's are very hard to get,but you should be able to score the Sylvania's. 12AX7 SYLVANIA PAIR Mu 89. 1 review for Sylvania JAN-CHS 6SN7 NOS Dual Triode Medium MU Preamp Tube. " This truism places the 12AX7/ECC83 class at the top of a list for the most important tubes in your amplifier. This late 1950s-early 1960s Sylvania 12AX7 tube has long gray plates with copper grid posts and a halo or D getter. General Electric, RCA, Sylvania` NOS 211 Power Tubes and 83 Rectifier Tubes for sale. The Gold Brand (literally, Sylvania's premium consumer tube line) version is a bit unusual in that the black plate gold brands had steel pins rather than the gold pins of other tubes in that line. bobtec wrote:My Green Lables are Sylvania organ pulls They sound best in Fender type Preamps. Different tubes sounds different in various circuits. Looking for ECC83, 7025 Tubes? You can use any current production 12AX7 tube as 12AX7A, ECC83 or 7025. Manufacture date is April of 1955. I did some online research on these tubes and learned that they are very good tubes. up for bid is a lot 3ea. 5751 tubes are generally made to industrial standards and are found with both double and triple mica. These 17mm black plate 12ax7 are rumored to be Briam May's favorite and have excellent clarity and sound beautiful when overdriven in a guitar amplfier, especially recommended for the Vox AC30 and other clean amplifiers where you want a balance of warmth and sparkle!. 12AX7 tube is the most common preamp tube today. Re: Sylvania 12AX7 Post by domct203 » Mon Apr 20, 2009 10:05 pm 212Mavguy wrote: Another interesting vintage Sylvania that is wonderful sounding clean or dirty is the gold brand 12at7wa, amazingly musical, not yet stupid expensive, I like it better in a v1 type of spot than a cv4024 Mullard. Made in Herleen Holland with appropriate delta production code. The Ei 12AX7E is modelled after the famous "flat plate" Telefunken pre-amp audio tube. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of current production options to choose from. 5751 sylvania nos/usa NOS Sylvania 5751 / made in the USA   Lower Gain ECC83 type tube. SYLVANIA 12AX7. a car battery. 2 0 in stock shipped in white boxes. Make offer - 3 NOS Tubes Sylvania Gold Brand Gold Pin 5751wa / 5751 Vintage 12ax7 3 MICA TRIO NOS *NEW MATCH PAIR Five Star 5751 Black Plate 3 Mica 1956 12AX7 Tubes [] GETTER £158. FOR SALE ARE SEVERAL 1960'S 12AX7'S PRE-AMP TUBES FOR SALE pulled from Vintage amps. The dual triode consists of the high-value plate resistor, which has an impedance of 100,000 ohms. 12AX7 Tubes. Sylvania "Gold Brand" Gold Labelled, gold pin 5751, Premium 12AX7: New Old Stock in original box. bobtec wrote:My Green Lables are Sylvania organ pulls They sound best in Fender type Preamps. Euro Audio Team-Eat ecc803s/12ax7 pair of new in box gold pin tubes These ECC803 Double Triode pair of valves comes with a Cool Damper pre fitted which offers a more controlled and deeper bass, a more open and detailed sound stage, and crisper and greater dynamic range. Ask the Experts. Premium Catalogue All premium catalogue stock is tested with the Amplitrex AT1000 digital tester and comes with detailed test results for your complete peace of mind. great for a cramy fat clean tone with smoother response compared with… To be able to use Tube Amp Doctor Onlineshop in full range, we recommend activating Javascript in your browser. ) ( Sylvania Pair) Sylvania NOS 1964 same date codes 1 low noise pair) Sylvania NOS 1964 same date codes 1 tube) and 1 tube) and Good Ma range Good Gm = - Recommended for Manley Modwright Audio Note Ray Samuels Ayon Kondo Mastersound Audio Thrills Loth Marsh See more. They are not cheap and are hard to find ,but once found well worth the effort and cost. 1950's Sylvania NOS 12AX7 Black Plate $124. 1950s Sylvania 12AX7 - long black plates. Tung-Sol 6V6GTs are the holy grail for players who crave the sound of a Fender Princeton, Deluxe or Champ, or those who revere the tone of the earliest Ampeg Jet and Rocket. 1 - 1964 Sylvania -CHS 5751, gray plate, 3 mica, extra support rods, round halo, green label, sent to me as NOS. Shop with confidence. Everyone's ears are different though. Euro Audio Team-Eat ecc803s/12ax7 pair of new in box gold pin tubes These ECC803 Double Triode pair of valves comes with a Cool Damper pre fitted which offers a more controlled and deeper bass, a more open and detailed sound stage, and crisper and greater dynamic range. 12AT7=ECC81 Telefunken West Germany - reference pictures and comments Comments in Manley preamp: ----- Got the Fisher branded Telefunken 12at7 NOS from you -> very clear, fast, modest bass, very refined highs with no harshness, much better mid range detail, made the Manley preamp sound more expensive than it is. My favourite high gain amp 12AX7's are the late 80's / early 90's Chinese (square getter) tubes. It only has 70% of the gain that a 12ax7 has. Made in Herleen Holland with appropriate delta production code. 10 tubes available . Welcome to TubeDepot Javascript must be enabled to use this site. Vintage Sylvania 12AX7 PLATINUM GRADE Preamp Tubes Matched Pair Test NIB new Sovtek 12AX7WA Preamp Vacuum Tubes $13. 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. Sylvania 12AX7's, 1959 production, first run 17mm grey plates…$55. ) ( Sylvania Pair) Sylvania NOS 1964 same date codes 1 low noise pair) Sylvania NOS 1964 same date codes 1 tube) and 1 tube) and Good Ma range Good Gm = - Recommended for Manley Modwright Audio Note Ray Samuels Ayon Kondo Mastersound Audio Thrills Loth Marsh See more. a car battery. Mullard 12AX7 Short Plates. Call now! 516-314-0357. Manufacture date is April of 1955. For preamp tubes, I want to know what is the best 12AX7 (and other preamp tube) I can buy for the money? Say $20 ($15-25)? I just can't envision spending $50 on a 12ax7. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of current production options to choose from. EQUIPMENT USED The amplifiers used were: 70 's Fender twin reverb fitted with J. The last time I paid $50/each for 12AX7's they were NOS Phillips Herleen in the original boxes. Supplied in white boxes. These tubes are some of the best sounding tubes you can get. 99: NOS 12AT7 NOS 12AU7 NOS 12AX7 NOS 12BH7 NOS 6922 / 7308 / 6DJ8 / CV2493 NOS Rectifier. Sylvania "Gold Brand" Gold Labelled, gold pin 5751, Premium 12AX7: New Old Stock in original box. The 5751 is not a 12AX7 tube. 4 Nos Tubes. Electro Harmonix EL34. Good price, can be easily found for less than $50. What a buy!. After using this tube in all of my guitar amps (12) both vintage (1954) and brand spanking new I can say with great confidence that this is a solid, great sounding and durable tube. It only has 70% of the gain that a 12ax7 has. Sylvania 12AX7's, 1950's 14mm black plates. I have a bevy of new and New Old Stock tubes here to listen to and the JJ 12AX7-S stands up there with the finest available. 1950's Sylvania NOS 12AX7 Black Plate $124. 00-Great choice for the second gain stage and phase inverter positions of Marshall and Vox style amps. Show: Result Pages: 1 Sylvania: Sylvania 12AT7WA GB NOS: $34. The calibrated TV-7B tested all of them, and results are written on each box and shown below. Test data is actually perfect. nos matched strong tests tested 15/29 pair amplitrex 12ax7 ecc83 sylvania tubes tubes sylvania ecc83 nos pair amplitrex 15/29 matched 12ax7 tests strong tested: $49. 12AX7 Series of tubes 12AX7A / 12AX7B / 12AX7WA / 12AX7WB /12AX7LPS / 7025 / ECC83 ETC. Preamp Valves 12ax7 ecc82JJ, 12ax7M | Hot Rox UK graded (see options on the valve page). 666 with a conductance of 100 on both sides 1ea manufacture unknown 12ax7 tested on eico mod. These are early Sylvania 5751s from the '50s and they are distinguished from their later brethren by their black plates. Mullard 12AT7 made in the UK NEW (NOS) These are the same tubes as above but have different branding like GE, Sylvania, etc. Sold in white boxes. Tube amps use multiple tubes, and the first position is referred to as V1. British ilitary tube received in bulk packaging as shown. Discussion in 'Member Classifieds' started by davestp1, Jun 17, 2016. It only has 70% of the gain that a 12ax7 has. Call now! 516-314-0357. 6350 (Sylvania, Centron, Raytheon) GE 211 / VT4-C NOS. Like yourself the run of mill Sylvania & GE 12AX7s did not work for me yet. They are not inexpensive, but not horrible expensive, and are so much better then even the highest regarded standard 12AX7's regardless the maker or time era. Includes foot switches for a fine sounding reverb(it is the Hammond-Gibbs reverb 3-spring pan that is driven by a 6V6 tube providing a wonderful depth and texture. Powered by 2 RCA black-plate 6L6G's(Sylvania green label 12AX7 pre-amp) original head and cabinet, speaker cloth has been replaced long ago with groovy painted burlap. watfordvalves. Because of the extended length of the plates, this tube is able to act as an amplifier. 12AX7A If you stop and think for a second, what are the "features" in 50's NOS that dealers keep trying to sell you on? Aside from black plates, they're described as "long plate" tubes. nos matched strong tests tested 15/29 pair amplitrex 12ax7 ecc83 sylvania tubes tubes sylvania ecc83 nos pair amplitrex 15/29 matched 12ax7 tests strong tested: $49. Tube Basics and FAQ Grading and Matching Vacuum Tube Warranty & Return Policy Cryogenic Treating Tube Testing Equipment Why We Don't Sell Certain Brands. 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. Telefunken 12AX7 / ECC83 - smooth plates, matched pair, phono grade Price: From $97. In my Matchless Lightning 15 combo, the pre-amp tubes that work best for me are NOS Telefunken. Here's a short demo, between the two tubes. 99 per tube. There are many 12AX7 on the market today. The 12AX7 (ECC83) vacuum tube was invented almost 70 years ago and is still an absolute necessity for every electric guitar tube amp and a wide range of hifi audio tube amplifiers More Details 30 Products. Sylvania or made by Sylvania NEW (NOS) This is a special non-micorphonic and low hum version of the 12AX7 that was produced only by Sylvania. Register to access all of the benefits reserved to registered users or click on login if you are already registered. This warm sounding tube with good gain and a very low noise floor, popular among guitarists and audiophiles alike. Many tube manufacturers would buy their tubes from overseas vendors such as Mullard and put their name on it. Some of the actual stock pictured may no longer be available however we have valves arriving on a regular basis - please enquire. Save on Nos Sylvania Pair Sylvania. 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. The Tung-Sol 12AX7/ECC83 is the gold standard of preamp tubes favored by guitar tone junkies, and one of the most important links in your tonal chain. High End NOS Tube Rolling in 50s Fender Bassman (Mullard, RCA, Amperex, GE, Sylvania) The Guitologist. The Mullard 12AX7 long plate square getter is the best I ever heard. They are VERY reliable and have tons of gain! I have a tube tester and these tubes are always at the high mark for output, in fact sometimes 30% higher than other brand new tubes. Remember not just Sylvania, but labed Sylvania Gold Brand 5751's. They are featured here as a comparison between new tubes and NOS. 81) Posted by earnie3 on 2009-03-02, 18:12:52 (70. 2 0 in stock shipped in white boxes. The utmost care is necessary in this stage of the processing to ensure that the tubes will give long, uninterrupted service to the customer. Best non-NOS 12ax7 preamp tubes? I have a Mesa Mark IV version A (1990-1993) which I bought used about 3 years ago. Sylvania 12AX7's, 1959 production, first run 17mm grey plates…$55. Vintage 5751 tubes from USA and Europe. What's the consensus here, I have a chance to buy either a NOS Telefunken smooth plate or a NOS Mullard (labeled Hammond, but made in the Blackburn factory) 12AX7 preamp tube (I can get either one, but only have the money to get one for right now). Read our reviews or we'll help you with a recommendation. Price is 85 Euro one. A 70's Fender twin reverb fitted with original Fender blue back. Everyone's ears are different though. Register to access all of the benefits reserved to registered users or click on login if you are already registered. watfordvalves. mullardtubes. Remember not just Sylvania, but labed Sylvania Gold Brand 5751's. Call now! 516-314-0357. A good alternative to the 12AX7 is the RCA 5751 black plate round getter. Re: Tube Rolling 12au7, 12ax7 Reply #89 - 07/05/19 at 22:01:29 I was looking for 12AU7 advice for the ZP3 and based on early posts in this old thread I bought what looks like a NOS triple mica RCA 5814A. See our Best 12AX7 Review for more information. 10-NOS SYLVANIA 5Y3GT 1800/2000. 12AX7 TELEFUNKEN SMOOTH PLATES NOS (excellent preamp 12AX7, low noise, very smooth extended highs, very good in phono stages, low noise) Se Electronics Z5600a II Tube Condenser mic Veloce Audio Line Stage and Phono Amp Nagra PL-L preamp VTL 7. Renowned the World over for its specific grain in guitar amps. FOR SALE ARE SEVERAL 1960'S 12AX7'S PRE-AMP TUBES FOR SALE pulled from Vintage amps. Test values for both Gm and plate current are excellent, and I put that on the boxes with a removable sticker. Just put a NOS Sylvania JHS 12AX7 in my integrated amp. Or even close to ANOS. General Electric, RCA, Sylvania` NOS 211 Power Tubes and 83 Rectifier Tubes for sale. So the price is just the normal price for good USA NOS 12AX7. These tubes are some of the best sounding tubes you can get. Manufacture date is April of 1955. el34 / kt77 / 6ca7 Popular in high powered audio and high end guitar amplifiers, characterized by greater distortion at a lower power compared to other power tubes. These 17mm black plate 12ax7 are rumored to be Briam May's favorite and have excellent clarity and sound beautiful when overdriven in a guitar amplfier, especially recommended for the Vox AC30 and other clean amplifiers where you want a balance of warmth and sparkle!. As a Marshall guy, I love the way NOS Mullard 12AX7's just plain "fit" with my `74 Super Lead half stack. 4 Nos Tubes. 99 per tube. Get some while you can and hear the quality yourself! MATCHED PAIRS ARE JUST $150. Large gray flange plates for a great soundstage. I've used Angela Instruments to source things like Mullard & Amperex for this kind of stuff in the past but was wondering what other sources and what 12AX7 tubes in particular people have likedfor their mastering processors. NOS JAN Philips/Sylvania 5AR4 and other stuff. Will replace any 12AX7/ECC83 type. Large selection of NOS tubes. Tube type and description: Price each: 5687. Save on Nos Sylvania Pair Sylvania. Tube amps by Tom McNally Check my eBay listings for amps for sale tomsnj on eBay If you have questions or need some help, please email: [email protected] Up for your consideration are four (4) closely matched Baldwin labeled Sylvania 12ax7 ECC83 preamp tubes. GE 12AX7/ECC83's, 14mm tubes…$75. large inventory of discount Nos Sylvania Pair Sylvania. Looking for ECC83, 7025 Tubes? You can use any current production 12AX7 tube as 12AX7A, ECC83 or 7025. The RCA clear tops are good (for the 12AU7 spot) but I would try and get some NOS Mullard for the rest ( NOS EL84 are still pretty inexpensive). Just put a NOS Sylvania JHS 12AX7 in my integrated amp. 5751 sylvania nos/usa NOS Sylvania 5751 / made in the USA   Lower Gain ECC83 type tube. The smooth plate is one hell of a tube. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of current production options to choose from. Rod ~ World Tube Company Mullard The Mullard 12AX7 / ECC83 is a Very Smooth Sounding tube. an Amperex Bugle Boy 12ax7, a Mullard 12ax7 (RCA labeled), a GE 12ax7, and an RCA 7025. Nuvistors were the latest tube development at just about the same time as the introduction of the first integrated semi­conductor circuits. I've spent many hours taste-testing pre-amp tubes and have a blast doing so. Preamp Valves 12ax7 ecc82JJ, 12ax7M | Hot Rox UK graded (see options on the valve page). A small inventory back in stock of this rare and excellent tube, all from the same military bulk tray. NOS Siemens E-288CC Dual Trode Gold Pins, Low Noise $250. EQUIPMENT USED The amplifiers used were: 70 's Fender twin reverb fitted with J. 5751's are military tubes which can be used in place of 12AX7's. Best non-NOS 12ax7 preamp tubes? I have a Mesa Mark IV version A (1990-1993) which I bought used about 3 years ago. more details on www. Highly desirable, premium grade, tube for audiophile and guitar amp applications. Sylvania "Gold Brand" Gold Labelled, gold pin 5751, Premium 12AX7: New Old Stock in original box. I made this mostly so I could have a second ear in hearing the differences. They have great clarity and openness, deep bass, and accurate high end. So the price is just the normal price for good USA NOS 12AX7. made 12AX7. They are a great sounding U. Shop with confidence on eBay! 12ax7 3 MICA TRIO. great for a cramy fat clean tone with smoother response compared with… To be able to use Tube Amp Doctor Onlineshop in full range, we recommend activating Javascript in your browser. ECC83 Telefunken 12AX7 Types My regular job does not have any connections with vacuum tubes, except for the music endlessly playing on my tube amplifiers. -All test good(70+) on my Jackson 648 tube tester-Great tone with these tubes from anything you currently have JJ's or GT's (are Chinese) - 20 RCA 12AT7 NOS $10each - 10 RCA 12AU7A 50's NOS NIB $10 - 1 Mullard 12AU7 Vintage $15 - 2 Sylvania 12AU&$15 each. What's the consensus here, I have a chance to buy either a NOS Telefunken smooth plate or a NOS Mullard (labeled Hammond, but made in the Blackburn factory) 12AX7 preamp tube (I can get either one, but only have the money to get one for right now). I also have a variety of other NOS tubes, 12AX7's, 12AU7's, 12AY7's, 5751's, 6L6's, 5881 and many more. NOS Vacuum Tubes 12 & Variants. Re: Sylvania 12AX7 with short, grey plates Post by rridle » Wed Jan 25, 2012 2:39 am First, let me say I'm no expert and there are many people on this forum and the TGP forum who know faaar more than I do. Out of 5 tubes, 2 12AT7's and 3 12AX7's, every single one was bad. The RCA 12AX7 also has a deserved reputation for musicality and great tone. I made this mostly so I could have a second ear in hearing the differences. Originally, the 12AX7 / ECC83 vacuum tube was introduced to be a superior option for lower noise and microphonics over the 6SL7 tube that was commonly used in the 1940s. They are featured here as a comparison between new tubes and NOS. Remember not just Sylvania, but labed Sylvania Gold Brand 5751's. $65 plus shipping and insurance. Good price, can be easily found for less than $50. New old stock RCA 12AX7s are somewhat rarer and more expensive than Mullard ECC83s, however RCA did manufacture a ruggedised version of this tube - the 7058 - designed for 12V lead-acid battery operation. Find great deals on eBay for 12ax7 sylvania and 12ax7 sylvania nos. Find many great new & used options and get the best deals for Sylvania 12AX7 WA- Vintage Tube at the best online prices at eBay! Free shipping for many products!. The Sylvania 12AX7, with short (14mm) grey plates. Tested in V1 of my Princeton and it sounded great.