6sn7 comparison

6sn7 comparison

com. Hiroyasu Kondo of Audio Note Japan. With real world comparisons and real world measurements, these ratings use up-to-date sampling to determine statistical performances. They have a super low noise. 6SU7 is a totally different tube than a 6SN7, although I can't find much difference between a 6SU7 and a 6SL7, other than their pinouts are different. Also, the 6CG7 line Sophia Electric Royal Princess 300B and 6SN7 Tubes Review. 5 times that of 6SN7!! The 5687 was known by Mr. Hifi Reviews, The SERP, in comparison with many other Chinese 300Bs, is built like the proverbial battleship, weighing 130 grams against a standard Shuguang tube at just 86 grams. 5-inch bass drivers The most common types of 6550 tubes and their European equivalents used today include: 6550 - Tung-Sol developed the first 6550 tube in 1955. com/audioreviews/psvane/2. Home Audio Equipment Review: October 1998. Instead of some geeks idea of going through all the manufacturer's claimed measurements and stuff i decided to do all this just like any normal dette/dude would. . The test gear used to evaluate these 6V6 tubes was a 1956 Tremolux, a 1966 Deluxe Reverb, 1983 Squire strat - stock pickups, Heritage 535 - Gibson 57 Classic Humbuckers and a Les Paul with Gibson Burstbucker pickups. I like simple homebrew circuits and was intrigued by the size and the fact that these transmitters used just a single tube and yet were MOPA circuits (master oscillator - power amplifier). all I had to compare were the stock Russians, a fellow pair of ElectroHarmonix and my prior go-to valve, the Create Hifi built by Shuguang with outsourced metal ECC82 vs. Electro Harmonix - 6SN7 Preamp Vacuum Tube - Matched Pair A matched pair of 6SN7 Preamp Vacuum Tubes. one of the few utilizing 6sn7 tubes. Where I don't want to slog through in a half-understood language, I use Google's translation page. 3 volts or any mounting 0. 7 ma range. 6L6 comparison chart. htmlHere are the Russian Tung-Sol reissue stock 6SN7 of the ModWright LS-100. Unfortunately, early this year the gentleman who ran Midwest The inclusion, and description, of each tube preamplifier (and tube phono stage and tube amplifier) assumes that high-quality tubes are being used in the signal path. 6SN7 Tube OTL Headphone Amplifier right is a transistor in a TO-220 and is put there for size comparison. Yet the ECC82 has a substantially6SN7 aka CV181. The 5687 tubes on them are three (3) on each monoblock, six(6) in total, driving the 2*211 in the final stage. Guitar amplifier parts, guitar amplifier tubes and guitar amp tubes 12ax7, 6v6gt, EL84 RCA 7N7 Vacuum Tube (to Replace 6SN7) It would be interesting to see how this tube will compare with most 6SN7 and probably with the famous 5692 red base – if I Rectifier comparison and interchangeability chart Rectifier Interchangeability and it's relation to Clean Headroom Here's the list of the most common guitar amp rectifiers in order of most to least clean headroom (highest to lowest voltage output) and least to most sag: These are designed to compare to vacuum tube equipment costing several times more. Compare the price to the early brownbase version, these are perfect if you want the Sylvania sound but cannot afford the higher cost of 300B Triode Vacuum Tube Comparison Review May i first set the "ground rules" here. The Psvane CV-181T are taller and more bulbous as even the horizontally placed Tung-Sol shows off clearly. They are somewhat similar in gain, tranductance, etc. Grid-plate curves 6SN7 12AU7 comparison. Also included is an adapter allowing you to start rolling 12AU7 tube types for even more versatility. new registrations are closed at this time 6SU7 is a totally different tube than a 6SN7, although I can't find much difference between a 6SU7 and a Sophia Electric 6SN7 Comments - David M. Treasure Globe 6SN7-SE (pair or single, GF Limited Special Edition) "Could this be the next best 6SN7 on the market today?" - this is no doubt the ambition in the design team's mind when they bring this model to the market! Description: These 6SN7-UK 'carbonized More Info May 01, 2011 · 12AX7 tube comparisons Here is a quick comparison of new 12AX7 tubes tried recently. Not …Author: DIY Audio Projects - Hi-Fi Blog for DIY Audiophiles6moons audio reviews: Psvane CV-181Twww. 00 Quantity. We currently have two matched pairs available. Dali Grand Loudspeakers. S made tube, must try made in the 1950's or before. Older versions are Black Plate, Newer are Gray Plate. Contents. Metal base. I had one Rogue Audio preamp on hand for comparison, the Model 99 Magnum, so I thought I would compare preamp’s audio signatures. DIY Audio Home. This is a suitable replacement for any 6SN7GT = 6SN7GTA = 6SN7GTB = ECC32 Dual Triode tube type. For Europeans made any era should be good. I've tried to list links where there is (1) a picture, and (2) a schematic. Having said that, in both my Peavey Prowler and my AC15, replacing the 12AX7 in the V1 with a 12AU7 makes the range of gain lower overall. Add to Compare The numbers refer to "amplification factors" (the 6SN7's is "20x", for comparison). In many instances Jan 27, 2011 vacuum tubes for a long comparison with the best of my NOS 6SN7 tubes. …Author: DIY Audio Projects - Hi-Fi Blog for DIY Audiophiles6moons audio reviews: Psvane CV-181Twww. We continue to be dealers for both Lowther and Fostex. What is the story? Purity Audio Design. Jan 03, 2014 · diytube. Not a big sound, but very easy to listen to. Compare Products . Check out reviews of our popular audio tubes. Alternatively you can replace the KT-88’s with a quad of EL34B tubes for a smoother sound rendition but less per channel wattage. but after around 20 hours of warm up I made a listening comparison with the original Electro Harmonix 300B's and I definitely will be Review: Manley Neo-Classic 300B preamp Review: Shindo Monbrison (old version), Part II using Genelex Golden Lions for the 300Bs and Shugang Golden Treasures for the 6SN7's. It surpasses all other tubes in its class with a yield potential equivalent to 2. It's very nice, tho it can be a little "crackly" until the tubes heat up. When a 6SN7 is mated to a classic 300B, one will emphasize the latter's frequency extreme limitations to arrive at a softer, fatter and more midrange-centric sound. The 6SN7 has the reputation of being the most linear of the medium mu triodes and the 6CG7 follows suit. ----6U5/6G5 ST (larger "coke bottle" shape) RCA made, eye tubes. Permalink. Click the pages you think might be interesting :- AUDIO IDEAS FOR THE HOME Listening pleasure, class A, log sawing, class B, class AB,6CM5 / EL36: Applications in Audio. the absolute winners of this comparison test are the The 6SN7 tube is a medium-mu twin triode in an octal based package, usually glass, although some metal envelope types were made. Just like the 5692 (6SN7 version), these have 5 vertical support rods and extra heavy duty mica spacers for superior rigidity which result in superior microphonic performance. 6SN7 (too old to reply) Wessel Dirksen Raw Message. I will probably try both. In effect a long distance shootout between his TJ Full Music 6SN7, The 6SN7 tube is a dual-triode preamp tube with medium gain. guss bulb 6sn7gtb double triode coated un i potential cathode heater 6. Second, the big deJongSystems amplifier exhibited much tighter control over the 300B than the AudioNote Kit One amp Feb 07, 2010 · 12AU7 / 12BH7 / 6CG7: What's best? The 12AU7, 12BH7, and 6CG7 have very similar electrical characteristics and can usually be substituted for each other. Low-distortion triodes (6J5, 6C5, 6SN7, 6CG7, the new JJ ECC99, and direct-heated types) have much lower 3rd harmonic; for devices in the second group, the 3rd harmonic will equal or exceed the 2nd harmonic. new for 2019, a new Khozmo remote that does 4 input selection, and 64 step volume, same price as the older Khozmo remote that only did volume. It was a commonly used tube from the early 1940's into the late 1950'sMore Details Jun 13, 2012 This post begins a series of posts comparing the octal tube 6sn7 and its variants. These two little homebrew transmitters caught my eye at a ham swap meet. I'm currently using NOS Sylvania 6SN7 GTB's, which sound amazing. 1. Toob Madness Or The 6SN7 Zoo Review By Raymond Chowkwanyun More involving and transparent than the RCA which sounds a bit muddled by comparison. Comparison. Dared LP‐100 Switchable MM/MC Phono Tube Pre‐Amplifier. 6N8S / 6SN7 / ECC32 Tubes Lot 2 METAL BASE 1956. 1% total harmonic distortion at full rated power output. The introduction of a new component to one's hi-fi system usually entails blood, sweat, and afterwards a couple beers -- particularly if you live as I do, in a small Manhattan walk-up apartment. It's relatively linear with a little emphasis in the midband. Williamson proposed the standard which became generally accepted as the target figure for high-quality audio power amplifiers, for less than 0. They are somewhat similar in gain While a quickie comparison could at first believe this to be greater clarity—the best word would actually be By extension, the Psvane 6SN7 becomes a Full Music Russian 1578, 6H8C or 6SN7 tubes Page 1 of 2 [ 32 posts ] compare your notes with your friend's reports on which tubes were in the preamp, test by test. If I only compare the single-ended linestage, and this is from memory only, I'd say the For a comparison of (mostly expensive) NOS tubes, I refer you to Joe’s Tube Lore of a decade or so ago on the Audio Asylum site. but were smaller in my experience than those between the best and the worst 6SN7 or ECC83/12AX7 that I have heard. Posted: Wed Feb 12, 2014 4 After I visited a collegue audiophile making a 1-to-1 comparison with its preamp I discovered that the SP9 lacks something I like. That is to say, before on the Prowler, I'd never take the gain past about 3 while with the 12AU7, I might take it up to 5 or 6. is identical in internal construction to the 6SN7. I added a pair of Tele CCa's in the phono stage & kept the Phillips E180f's in. Raw Message. 6L6GC The 6SN7 seems responsible for the slow and soggy expectations many carry for 300B amps who haven't sampled a broader scope of such designs to know the possible permutations of sound. Figure 10 shows how this applies to a 6SN7, which being an older design does not have especially close spacing. KorenECC82 vs. 300B Triode Vacuum Tube Comparison Review May i first set the "ground rules" here. has had favourable reports and would be the tube I would buy if I wanted to buy a 6SN7(NOS 6SN7's are not an area I would like to get intobeing a relative newcomer to the scene)(appears like a copy of the tungsol 6sn7 according to triodeelectronics) This is a review and detailed measurements and comparison of Musical Fidelity V90-DAC against Topping D50. Sep 16, 2011 · Actually, they seem to QA the Tung Sols a bit better than most other 12AX7s. ECC32 & ECC33 is quite different tube, since the gain is higher, so difficult to compare!! Anyway, 33S30 is the best buy tube. S tube to beat. Add to Cart Add to Cart. The 6SN7 and it's equivalents were once the most popular tube. Using the data sheet acquired from the Tube Data Sheet Locater, we can see the schematic for a cathode-biased amplifier circuit and various values for resistances in the circuit. (courtesy of Wall of Sound) "All of the 300B type tubes in this review are darn nice to listen to: the differences between them aren’t as dramatic as one might expect. Tube of the Month : The 6SN7 Hi! Best if you check the circuit and op points and then compare the plate curves of both types to see if the 6J5 will I have a few sets of NOS 6sn7's and was thinking about trying either the treasure globes or the blue psvane tubes- Has anyone compared the sound of the two newer tubes and also reliability- thks 6SN7 = 5692 = ECC32 = KT88 EL34 = KT77 = 6CA7 KT66 = 7581 = 6SL6 = 5881 300B = 6300B 2A3 211 = VT4C 845 Home / Tube / Valve comparison chart. The SERP, in comparison with many other Chinese 300Bs, is built like the proverbial battleship I can compare tube rolling to playing with an EQ. In its heyday in the ‘50s, the 6DJ8 was the American designation, with "6" denoting the filament voltage and "8" representing the number of internal elements, though the counting is not strict. Its base is a beautiful polished and lacquered brass 31mm diameter cylinder, like the 31mm diameter of the 'correct' 6SN7GT base. Detailed Black Plates Tube With comparison charts showing savings for each Black Plates Tube With. The changes were noticeable, but not nearly as significant as the Line stage 6sn7's I played around with. Search About Us How 6SN7 is a dual triode vacuum tube with an 8-pin octal base. Reviews and tests of interconnects, speaker and mains cables. 6SN7 6SL7 An ever popular octal based twin triode mainly used in HiFi, though sometimes found in guitar amps. About the AMAZING Quality of this 7N7 lot. Sale Regular price $30. Please use email first. RCA 7N7 Vacuum Tube (to Replace 6SN7) It would be interesting to see how this tube will compare with most 6SN7 and probably with the famous 5692 red base – if I AM Stereo Stations Hong Kong ; RTHK - 567 AM STEREO - Golden Hill, Hong Kong (RTHK Radio 3) 783 AM STEREO Golden Hill, Hong Kong (RTHK Radio 5) 1044 AM STEREO - Peng Chau, Hong Kong (News/Music Metro Plus) The JAN CHS 6SN7W Metal Base tube was made from 1942-1945. For U. 6SN7, 6SL7 Product Compare (0) Sort By: TJ Fullmusic Gold pin 6SN7 (Matched Pair) Showing 1 to 2 of 2 (1 Pages) Information. N. He has a 6SN7 line stage done by a French guy who recently passed away. Has anyone heard or made a comparison of the Russian made 6H8C metal based tube against any of the high end NOS 6SN7 tubes, in particular the Sylvania 6SN7W? Also opinions of the best 2A3 would be apprecited. The Shuguang 6SN7-SE Globe is 59mm diameter (twice the GT width) and 84mm tall (excluding pins, to nipple tip, 20mm taller than standard). In Search of the Perfect 300B Tube Page 3. Tube of the Month : The 6SN7 Hi! Best if you check the circuit and op points and then compare the plate curves of both types to see if the 6J5 will 6sn7 Metadata This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. These Audio Mirror 6AS7 PSE mono-blocks have been my true workhorses for more than four years now (2010) and are likely to stay so for years to come. Where I don't want to slog through in a half-understood language, I use Google's translation page. Following from my review of Tungsol's 6SN7, a quick audition of its 12AX7 brother suggests that New Sensor is going for a particular house sound with Tungsol re-issues. Here are some listening notes from experimenting with a variety of 6SN7 tubes in my Cary SLI-80 integrated amp (used as Nov 20, 2007 I just currently finished a tube preamp using a 6SN7 dual-triode,I've heard of really good NOS tubes to use,like the RCA red base,Mullards,and 6SN7GT* - First designation of the 6SN7 tube type. 6sn7 comparisonJun 13, 2012 This post begins a series of posts comparing the octal tube 6sn7 and its variants. KCA NOS Tubes. Try out both of these great new production tubes. It is a great KT88 single ended class A tube amplifier,Using 2 pcs of SHUGUANG KT88 for ultra linear operation,Also it could be in triode configuration if you need,Voltage amplifier tube powered by 6N8P/6SN7 at SRPP mode with high gain and low lostness,6N8P can be substituated with 6SN7 series,The sound is amazing with air crystal and silky. Hi RAT's, I'm curious about the comparison of these two tubes. Compare the sound of 6SN7 with those small tubes like 6922 / 12AX7 / 12AU7, it will be night and day difference in openness, naturnalness and smoothness. T. Tube Substitution Table > Dealer Login Promotions Contact Us select the first character of the tube 0: 1: 2: 3: 4: 5: 6: 7: 8: 9: A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P: Q: R: S: T: U: V: W: X: Y: Z > 6/2(1-500) 644(501 As a comparison a jack hammer puts out 100dBs of noise. 3 watt amplifier Back with DAC option Separation of signal (left) and power (right) Those four tubes gracing Freya's topside aren't just any tube mind you, Freya uses my favorite preamp type, the 6SN7, which is a bit larger than most. The Those four tubes gracing Freya's topside aren't just any tube mind you, Freya uses my favorite preamp type, the 6SN7, which is a bit larger than most. There are some small differences, but most of the tube data is close. Compare the price to the early My favorite 6SN7's were the mid 1940's KenRad Blackglass VT231 ( great bottom end on these), National Union Blackglass VT231, RCA Smoked glass 6SN7's(beautiful warm presentation) and of course the Tungsol roundplates. Before we started Audio Nirvana, we were one of the largest sellers of Lowther and Fostex full range speakers. This is an un-official Leak Web Site, designed to help encourage the restoration and maintenance of this wonderful audio equipment. That's about the only comparison I've done. It is as good as the factory code 32 ?Russian 1578, 6H8C or 6SN7 tubes Page 1 of 2 [ 32 posts ] Go to page 1, 2 Next Previous topic | Next topic : Author Message; You've already described a falling-off in gain with those Sovteks, by comparison with 6SN7s. This is a long one folks. Equipment Review: April 2000. Any input would be appreciated. Rogue audio, 99 magnum, perfekt, one of the best bargains in value-performance preamps, competing with much more priced models. The 6SN7 tubes are configured as two cascading stages, the common-cathode and cathode follower, respectively. SPICE and the art of preamplifier design Part 2: New preamplifier designs by Norman L. May 31, 2010 · The 12BH7 shares many similarities to the 6SN7 (also a favorite tube around these parts), but is characterized by a darker sound. There seem to be a bazillion different types of 6SN7's. The SERP retains the classic ST glass shape, but at 15cm high from its base to top of bottle (excluding Nov 22, 2011 · Informal Comparison of Six Phono Preamps This is a project that sort of evolved from an interest to see how good a particular phonograph preamplifier was. 6moons. The only amplifier I have where there is space for the Shuguang 6SN7-SE is the hot-rodded Assemblage (nee Sonic Frontiers) SET300B SE Signature. When compared to KT88 from Penta Labs, the sound is great on the level with other high-end tubes. I've tried to list links where there is (1) a picture, and (2) a schematic. January 2004 Sophia Electric 300B Amplifier Mk. svg 1,318 × 872; 50 KB. Scarce tubes, hard to keep in stock due to their popularity with audiophiles. My Experiences with Single-Ended EL36 Output Stages, by Graham Dicker, March 2003, October 2004. It doesn't compare to the better 40's 6SN7, but it's significantly cheaper (or at least it The 6SN7 is an octal tube used either in preamps or as a driver in a power amp. Try a partial part number. I was first attracted to the Aikido because of the opportunity to hear and compare some of the NOS tubes I have been collecting on Ebay and in used electronic stores. Changing the coupling caps improved transparency considerably and with the mods shown below, these monoblocks are serious contenders to my 300B SET amp and I use them all the time for …Feel free to email me at: [email protected] I work best through email as I check it frequently, Due to the huge call volume I receive. It doesn't compare to the better 40's 6SN7, but it's significantly cheaper (or at least it FWIW, I tried several highly recommended NOS RCA's from the '50's in my Oppo; all sounded rather recessed and a bit dark compared to early The 6SN7 is an octal tube used either in preamps or as a driver in a power amp. The 6SN7 octal tube sockets are standard on the Ultra series models and all units come equipped with Sophia Electric 6SN7 tubes. The design was based on the 6L6GC tube with higher power ratings, and featured a coke bottle shaped envelope like the European KT66 tubes. Or call weekdays 9:00 am to 5:00 pm (503) 887-9015 West Coast Time (also some weekends so try me) (It may take a while for a return call leave a message, sorry only so much time in a day to return calls)EDUCATIONAL AND DIY. Here are some listening notes from experimenting with a variety of 6SN7 tubes in my Cary SLI-80 integrated amp (used as 6SN7GT* - First designation of the 6SN7 tube type. This is one of the only New Production 6SN7's available and given how musical and warm it sounds, I'm not sure we need any others as long as they keep making this one! Shuguang Treasure CV181Z - vacuum tube (similar, but not identical to 6SN7 which one might expect to be very similarly designed and build, didn't compare with Add to Compare → 12BH7 EH - Electro Harmonix - One matched pair 6SN7 EH - Electro Harmonix - One matched pair . At first they sounded bad; no bass, a recessed treble, and audible distortion in the upper midrange. Review Notes Tube reviews written by John Templeton. May I ask what commercial preamps were compared to the Tono 6SN7 and Supreme? Hyperion, The JJ 6SN7 is a High quality, low noise replacement for any 6SN7 or 5692 type tube. However, I don’t have any other 300B tubes to compare it to. You can build many amps & preamps around it. new registrations are closed at this time. 12AX7 tube comparisons Here is a quick comparison of new 12AX7 tubes tried recently. Predictably, the 6sn7 Metadata This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. 5 to 0. I was wondering if anyone has done a comparison of the 6SL7 vs 6SU7. So even the most modest 300B should bring you some of that magic. The EF86 is a high gain pentode designed to amplify low-level audio signals. 6SN7 3. Hi, very instructiv. A PP Amp using EL36's and the Altronics-M1115 transformer, by Grant Wills, May 2003. Mike - My Roccaforte amp loves the RFT ECC83, so i am back for more. They are all compatible. The EH 6SN7 . One day, while researching possible motor driver IC's for my "day job", I ran across a device that I thought might be useful for my vacuum tube obsession, uh, hobby. Some have branding other than RCA, but are RCA manufactured. They are reliable and have never caused me trouble. Instead of the NOS 6SN7 tubes, I am thinking of trying the . However the vintage European ECC32/33, CV181/CV1988 family of tubes are not real 6SN7 tubes. Tube Complement: (2) 6SN7 driver tubes; (1) 5AR4 rectifier tube (may also use 5U4GB and 5V4GB). Can pay with paypal. 00 Out of stock. a pair Electronic tube 6N8P replaces 6SN7 6H8C CV181 / 12AU7 instead of ECC82 / KT66 replaces 6L6 6P3P US $16. I've been running a few tests on some reasonably high-Gm pentodes, in …Speakers Jensen Speakers. Tube Substitution Table > Dealer Login Promotions Contact Us A Loesch Preamp Variation. 12AX7-T, ECC83, PSvane Treasure Mark II - Matched Pair CV181-T, 6SN7 PSVane Mark II. 1PC EIZZ High End 8Pin Ceramic Vacuum Tube Socket for Excellent very rare 6SN7 tube Tube/valve 6SN7 GT Hytron. The 6SL7 has a gain of about 80 and you could compare it to something in the 9 pin world like a 5751 as far as the gain goes. 6SN7 (too old to reply) Wessel Dirksen 2005-06-10 08:24:12 UTC. I've been running a few tests on some reasonably high-Gm pentodes, in pentode and triode mode. Detailed In Tube Nos Box comparison charts showing savings for each In Tube Nos Box. Introduced in the late 1950's, it is used as a preamp in audio equipment and instrument amplifiers Feedback from Dave C. This tube was first developed and produced by RCA. Be aware that the triodes in the 6F8G are "identical" to those in the 6SN7. Some new production I agree quite, but harsh, clinical and solid sound. Equipment Review: Can drive long pairs of interconnects due to the use of one 6SN7 tube per channel. ELECTRICAL COMPARISON BETWEEN 6SN7GTB / ECC32 / ECC33 / ECC34 (ECC32 has higher plate resistance than 6SN7GTB) (ECC33 has higher Mu=amplification factor and Gm than ECC32) (ECC34 has low plate resistance and work best at lower plate voltages) (ECC34: Vplate=140V, Vgrid=-6, Ip=10ma, Gm=3700, Mu=16. Shop with confidence. Order (1) Shop2956052 Store. Since I own the Rogue Super Magnum 99 preamp I can compare the two directly. Find great deals on eBay for 6sn7 tube. 6SN7 6N8P 5692 TUBES IN ORIGINAL BOX NOS Hanging Filament US RCA Matched pairs. For me and my tastes I liked the Psvane better, but could live with the Genalex if needed. Not the one I designed, but one from a DIY kit. Combining Swan Song Audio SET amplifiers with efficient speakers brings the most out of a recording. The smallest average low frequency gain tube was used as the reference for a gain of "1" and the largest average low frequency gain tube was used as the reference for a gain of "10". 4W) 300B Triode Vacuum Tube Comparison Review May i first set the "ground rules" here. I want to thank all the customers who have sent me their evaluations of these tubes. 12AU7 / 12BH7 / 6CG7: What's best? is identical in internal construction to the 6SN7. I tested a number of 6SN7's of different manufacturers, just to make sure that the differences between tube sections weren The Sophia Electric Model 91-01 300B mono amplifiers that Richard provided for review are completely stock, except that Richard replaced the stock Chinese 6SN7 driver tubes wit the new Sophia Electric 6SN7 with the ST bottle shape that he is really excited about, and are available as an option, an option that he highly recommends as and upgrade Informal Comparison of Six Phono Preamps This is a project that sort of evolved from an interest to see how good a particular phonograph preamplifier was. 6SN7 shootout Sign in to follow the ECC34 had more gain than all the other tubes in the test so it was hard to compare BUT they both were VERY nice sounding tubes Best of 6SN7 and GZ34 so difficult to compare!! Anyway, 33S30 is the best buy tube. all I had to compare were the stock Russians, a fellow pair of ElectroHarmonix and my prior go-to valve, the Create Hifi built by Shuguang with outsourced metal The 6SN7 and it's equivalents were once the most popular tube. 6sn7 comparison Design Philosophy. On your project amp and wiring it up and then of course setting up bias and checking/adjusting all voltages. but ths last time I went with New Sensor and there's no comparison 6sn7 End of forum contributions about this tube You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. They were part of the RCA "Premium I have NOS Raytheon & Sylvania chrome tops to compare to EH 6SN7 & yes the NOS are better. I personally find most 12AU7s a little tinny in comparison Sophia Electric Royal Princess 300B and 6SN7 Tubes Review. 6SN7 type vacuum tubes. This 6SN7 tube is crossing into the domain excellence of solid state but retaining all the tube glory like 3D imaging, ambiance, richness of music, non-glaring, and micro dynamics decay of a tailing sound. 5C9S Rectifier Svetlana tubes Lot of 10 NEW . $74. The metal base Sylvania 6SN7W is regarded as the best sounding USA made 6SN7 variant of all times. AWV Super Radiotron 6SN7 NOS . (value 6SN7) new original box Russia (former Soviet Union) 6H8C/6N8P/CV181 tube US $15. 5 watts plate dissipation, 450VDC Plate Voltage rating, electrically similar to 6CG7) (6SN7GTB is a controlled warm-up version of 6SN7GTA; 11 second heater warmup, 450VDC Plate Voltage rating. Black Plates Tube With Sale. 15 - 49. Single-driver pentode test data. In addition, a visual comparison can sometimes indicate differences in physical characteristics such as spacing, geometry, size, plate design, and materials used. I have it in my Dared 300B amp and love the sound. I compared the shuguang black treasure and Sophia tubes in a direct comparison. $95. THIS IS NOT A COMMON PUSH-PULL! - very low feedback only 16dB 6550 and the KT88 so follows a compare table with the main characteristics and price. One review loves the sound, the other review hates the sound. here is our Dynaco ST70 page This board uses three 6SN7 tubes rather than the smaller 12AU7 type tubes, The original amp sounds muddy in comparison to the Examination of a 6SN7 Preamp Circuit Today, I will simulate a cathode-biased amplifier using 6SN7 tube model and compare the simulation to the data sheet. Please click here for my complete stock list with prices. The parts were mostly what I had on hand. Williamson. The 6SN7 is said to be a good tube for audio and the 6CG7 is apparently I would like to buy a couple of genuine 6SN7 tubes so I can compare their performance with Portrait of a Tube. The photos and comparison chart in this article compares and contrasts the current production Russian-made Sovtek EL84 and Genalex Gold Lion N709 / EL84 with the vintage Genalex Gold Lion N709 / EL84. 1) Select active devices for minimum upper harmonic distortion. A WORD ABOUT 6SN7 TUBES. 6SN7 5692 Tests. Too large capacitance made it quite dull on bass in comparison. As a tube dealer, I can tell you, most of the time 6SN7 NOS I get offered is medium quality. The 6DJ8 has to cathodes, two grids, two plates, one heater and one internal shield, for a total of eight elements. Another 12AX7 tube to consider is the new Genalex Gold Lion. including two quads of nos russian 6h8c (6sn7 equivalents), they compare with sylvania gta Den Blå Avis DKK9,000 Dec 21, 2018 twin triod, 12AX7, 12AU7, 12AT7, 12AY7, ECC81, ECC82, ECC83, ECC85, ECC88, ECC802S, ECC803S, EF86, EF80, preamp tubes My response always seems lame an uninformed in comparison. Both have a nice tone that, to my non perfect ears, sound different than their 12a?7 counterparts. Thanks for the comparison! Could anything be done to "speed up" the 6SN7 preamp? To "tighten" the bass? VD, Good to know that Tono will come out with a no-holds-barred preamp. The common-cathode amplifier configuration - partially bypassed cathode. Compatible equivalents & substitutes: 6SN7, 6SN7GT, 6SN7GTA, 6SN7GTB, 6SN7WGT, 6SN7W, 5692, CV1988, CV278, 6H8C (Russian), ECC32. and transparent than the RCA which sounds a bit muddled by comparison. Tube Comparison Tool Choosing the right audio tube has never been easier. The UNIVAC I was the first American computer designed at the outset for business and administrative use with fast execution of relatively simple arithmetic and data transport operations, as opposed to the complex numerical calculations required of scientific computers. So Media in category "6SN7" The following 9 files are in this category, out of 9 total. to compare to its pricier siblings. Feel free to email How does it compare with a TV-7d/u? the 6SN7 is an excellent tube for the application and the 7 will provide plenty of swing GINI Systems. 3 watt amplifier Back with DAC option Separation of signal (left) and power (right) Matched quad Psvane UK-6SN7 HIFI series Vacuum Tubes Re 6SN7 CV181 EL34 6H8C. via email: “Hi Rachel, thought I’d drop you a note regarding the Psvane 12at7s I received two weeks ago. These speakers are amongst the finest in the world and are renowned as one of the best speakers for guitar amplifiers. 00. Comparison to EL34DIY Audio Home. Table 2 shows this comparison along with two other audio types, the 12AT7 and 12AU7. If you remember, I wrote raves about this fine little, flea powered amplifier. Amplifier Comparison Guide 12-13-15. Product Pricing and information for the new 2014-2015 series of Purity Audio Design Products 6SN7 x2 or 12AU7 x2: 6SN7 shootout Sign in to follow the ECC34 had more gain than all the other tubes in the test so it was hard to compare BUT they both were VERY nice sounding tubes diytube. 2 Comments on Vacuum Tube Shootout: 6DJ8 types (part 1) kiratosum // 2018/06/08 at 7:38 am // Reply. Early Russian 6H8C / 6SN7. . Add to Compare The 6SN7GTB is the low noise version of the 6SN7, 6SN7GTA, and 6SN7GT. I have 4 that are stamped Mullard, but I have yet to find any information that states Mullard made 6SN7's. Rogue = 6SN7 and PL = 12AU7 and This system's upstream gear consists of a McCormack Drive SST-1 CD transport, a Line Magnetic 502 CA tube-based DAC, a Schitt Audio Saga 6SN7-based preamplifier, and either the solid-state Usher Tubes For Amps is your source for all things vacuum tubes. max max. Review Notes - how we conducted the review Tube comparison table - reviews at a glance 25 watt tubes Tung-Sol 5881 (used for reference) Re-issue Tung-Sol 5881 (Russian) JAN-Philips 6L6WGB JJ 5881 30 watt tubes and higher Sylvania 6L6GC (used for reference) JJ 6L6GC Preferred Series 6L6GC Mullard 6L6GC Sovtek 5881WXT Sovtek 6L6WXT+ S. These tubes are bold, producing solid fundamental notes and shimmering harmonics. The 6CG7 (or 6FQ7 which is the same exact tube) is identical in internal construction to the 6SN7. The 12AU7 is more or less the miniature version of it. You have no items in your shopping cart. What may be interesting is the evolution of 6SN7 specifications. I have a tesla factory code 34. Still, don't get the wrong idea, Freya's sound isn't soft or laid back, there's resolution aplenty. With Audio Nirvana we are now one of the largest Preferred Series 7189 (premium EL84) - This is the tube you want in just about every amp that calls for a 7189 or EL84. In the high end audio world, there seems to be no ceiling – in terms of innovation, technology or even price! Psvane has been pumping out high end tubes since their inception back in 2010, and this year, 2018, they have launched ACME Supreme series with the …These Audio Mirror 6AS7 PSE mono-blocks have been my true workhorses for more than four years now (2010) and are likely to stay so for years to come. Both are fine tubes with the following limitation: they are not made with low noise in mind, so they tend to be noisy and microphonic and should not be used for front-end stages. Special 6SN7 Line Stage All Aric Audio products are This tube sounds quite nice compared to many other 12au7 tubes, but can’t compare to Tung-sol Black bottle. Click "more info" for pricing, availability, and matching options. The Freya ships with rather cheap Chinese sourced tubes stock, while the Transcend comes equipped with Tung Sols. LAST update June 2016. In my amp, it was just way over exaggerated, which leads to tiring after a bit. May I ask what commercial preamps were compared to the Tono 6SN7 and Supreme? Hyperion, Add to Compare → Out Of Stock. $95 The JJ 6SN7 is a High quality, low noise replacement for any 6SN7 / 5692 type tube. It doesn't compare to the better 40's 6SN7, but it's significantly cheaper (or at least it should be). These tubes are extremely quiet and have a warm and even tone with tight lows and quick dynamics. used with our 6sn7 adapter. 5 ma per triode and actually works best in the 0. The preamplifier circuit is a Series Regulated Push-Pull (SRPP) Class A triode voltage amplification stage direct coupled to the phase inverter. Our test on 6SN7 is more or less similar but the Mullard ECC32 comes with ELECTRICAL COMPARISON BETWEEN 6SN7GTB / ECC32 / ECC33 / ECC34 (ECC32 has higher plate resistance than 6SN7GTB) (ECC33 has higher Mu=amplification factor and Gm than ECC32) (ECC34 has low plate resistance and work best at lower plate voltages) (ECC34: Vplate=140V, Vgrid=-6, Ip=10ma, Gm=3700, Mu=16. Burning In 6SN7 Tubes for the Dark Voice 336SE Headphone Amp July 7, 2016; Chicago Blues Box Amps The average from each tube's samples was then calculated and used for comparison. / August 2010 but after around 20 hours of warm up I made a listening comparison with the original Electro Harmonix 300B For opinions on common 300B tubes, take a look at Noam Bronstein 300B tube review/comparison. The Shuguang 6SN7-SE Globe is 59mm diameter (twice the GT width) and 84mm tall (excluding pins, to nipple tip, 20mm taller than standard). The 6SN7 can handle 25 ma per triode and seems to work best in the 8-12 ma range. Compare ( 0) Showing 1 - 21 of 21 items 6SN7 / 6H8C 6SN7 / 6H8C Sovtek . 2 pieces / lot Free Shipping. Informal Comparison of Six Phono Preamps This is a project that sort of evolved from an interest to see how good a particular phonograph preamplifier was. So, logically the 12AU7 / ECC82 was the tube of choice for many applications. Two cascaded direct DC coupled 6SN7 drivers provided more than 200x times amplification which is at least 4 times too much if we would like to drive 2A3 to full power with 1V RMS signal. Also, on this top front portion of the amplifier are two 6SN7 input stage tubes, a 300B driver stage tube, and your choice of either an 845 or 211 output tube. The most popular, small double triode is undoubtedly the 6SN7. The JJ 6SN7 is a High quality, low noise replacement for any 6SN7 / 5692 type tube. Shuguang Treasure CV181Z - vacuum tube (similar, but not identical to 6SN7 which one might expect to be very similarly designed and build, didn't compare with In its heyday in the ‘50s, the 6DJ8 was the American designation, with "6" denoting the filament voltage and "8" representing the number of internal elements, though the counting is not strict. That alone would be enough to persuade me that I was working with an ill fit. You have no items to compare. com/site/Shuguang+Treasure+CV181-Z He plans to compare them to a pair of 6SN7 Tung Sol Add to Compare → 6SN7 EH - Electro Harmonix - One matched pair Premium grade tube This tube is a true 6SN7 equivalent and you can use it in place of 6SN. Add to Compare → 6SN7 EH - Electro Harmonix - One matched pair Premium grade tube This tube is a true 6SN7 equivalent and you can use it in place of 6SN. The circuit has three stages of gain using a 12AU7 and 6SN7 as the initial stage into an 845, which in turn drives paralleled 211/845 outputs producing either 40 watts with the 211’s or 50 watts with the 845’s. Have you ever wonder what the difference is between each of the 6l6 tubes, have a quick look at this chart to help you see what the differences are as it just might help you choose. 6sn7 The 6SL7's amplification factor is 70, according to the 1959 RCA tube manual that I have. Features: Four sets of RCA inputs. 6SN7GT US BRANDS TECHNICAL INFORMATION (6SN7GT and VT-231 have a 300VDC Max Plate Voltage rating, most are 1940's) (6SN7GTA is improved, uprated to 7. All new tubes had at least 20 hours of burn in time on them. ECC82 vs. I do not know if it is safe or not. The 6SN7, used in millions of radios and early black-and-white TV sets, was 6L6 tube types in stock now Scroll down to browse our current selection of vintage 6L6 tubes and burned in, tested, and precision matched new production 6L6 power tubes. has had favourable reports and would be the tube I would buy if I wanted to buy a 6SN7(NOS 6SN7's are not an area I would like to get intobeing a relative newcomer to the scene)(appears like a copy of the tungsol 6sn7 according to triodeelectronics) As a result, the evolution of vacuum tube technology is marked by ever-finer grids, so that this relationship can be maintained. This is related to the "transconductance" of each triode section, but they're not exactly the same quantity (and that's about all I can tell you about that !). A Williamson amplifier is a type of vacuum tube (valve) amplifier whose circuit design uses the same principles as a design published by D. $40. They were part of the RCA "Premium Jan 27, 2011 vacuum tubes for a long comparison with the best of my NOS 6SN7 tubes. The 6SN7's amp. Internal tube rectified, solid state regulated power supply. I want to try these out in my Modwright tube Oppo 83. This is the input valve position and the valve is common between the two channels. Last update: 8/10/03, added 6C45p-e and 6SN7 cascade for comparison. All our preamp tubes are stringently tested for noise and microphonics using Amplitrex testers driving an external amp. I want to see how the Sophia's compare, so I only want to buy a used pair in case I don't like them as much. Add to Compare. The folks that build amps where I have my shop use the Tung Sols in some positions of some amps and I test them all the time. I just currently finished a tube preamp using a 6SN7 dual-triode,I've heard of really good NOS tubes to use,like the RCA red base,Mullards,and other various tubes,but these are usually expensive. You will never go back to those small tubes ever again. Hello Erik, My bench labor rate is $ 55. 6L6GC Comparison of Current Made Tubes The purpose of this comparison is simply to provide guitar players with a frame of reference to help in finding the best Since the Schiit Freya is the only other affordable 6SN7 based preamp we are currently aware of, a comparison is warranted. Listening tests of various HiFi accessories and tweaks. Compare an early data sheet with that for the 6SN7GTB. Add to Wish List. $48. If the cathode bypass capacitor is not large in comparison to the cathode resistance, the circuit is said to have a partially bypassed cathode. The generic part number is 12AU7 / ECC82. Extensive description of the history and different variants of the 6SN7. Compare (0) Showing 1 - 8 of 8 items As with the 45 tube types, if you have any questions regarding tube rolling and which 6SN7 tubes are acceptable replacements for the ones supplied with your amplifier, please contact us and we will be happy to discuss options with you. Treasure Globe 6SN7-SE (pair or single, GF Limited Special Edition) "Could this be the next best 6SN7 on the market today?" - this is no doubt the Can you hear the difference between 60 year-old American made Tung-Sol tubes and 1 year-old Russian Tung-Sols? In this listening test, we compare the sound of 6SN7GTB tall bottle chrome dome tubes. Compare. May 14, 2008 As a comparison, Jones showed an average for Russian 6J5s (his choice for a driver tube for the Crystal Palace amplifier) of -52dB 6sl7 vs. Electrocompaniet - EMP 6SN7 6SL7 An ever popular octal based twin triode mainly used in HiFi, though sometimes found in guitar amps. "firsts in High Fidelity"Introduction to Full Range Speakers. com 4 Overview EL34 SE V amplifier uses common pentode EL34 vacuum tubes for the class A amplification with 6SN7 / 6SL7 as the input stage. Electro Harmonix 6SN7 Gold Pins. Its base is a beautiful polished and lacquered brass 31mm diameter cylinder, like the 31mm diameter of the 'correct' 6SN7GT base. Home › Early Russian 6H8C / 6SN7. Assemblage SET-300B Amplifier. The Transcend is far more ruggedly constructed, and far more attractive. Here we go again. ” –Len [flat plates] Hi never talk about new production tube, if a cheap vintage 6sn7 can sound better. 00 h/r I would imagine on the Eico it would take about 4 hours, plus parts. Experience the magic from your vinyl collection that only tube phono stage can deliver. factor is 20, so what is the differance in signal strength in the same circuit? After I visited a collegue audiophile making a 1-to-1 comparison with its preamp I discovered that the SP9 lacks something I like. As with the 45 tube types, if you have any questions regarding tube rolling and which 6SN7 tubes are acceptable replacements for the ones supplied with your amplifier, please contact us and we will be happy to discuss options with you. Burning In 6SN7 Tubes for the Dark Voice 336SE Headphone Amp July 7, 2016; Chicago Blues Box DIY Audio Home. Russian tube 6n8s is similar to 6sn7 $ Comparison of high-capacity resistors, resistor; Home > Tubes > 6N8S / 6SN7 / ECC32 / 6CC10 Tubes Lot of 4 . Instead of some geeks idea of going through all the manufacturer's claimed measurements and stuff i decided to do all this just like any normal dette/dude would. I see more web sites refering to 6SN7 than the stock 6N8P type. including two quads of nos russian 6h8c (6sn7 equivalents), they compare with sylvania gta Den Blå Avis DKK9,000 Dec 21, 2018 Thanks for the comparison! Could anything be done to "speed up" the 6SN7 preamp? To "tighten" the bass? VD, Good to know that Tono will come out with a no-holds-barred preamp. Formerly BOI AudioWorks. Examination of a 6SN7 Preamp Circuit Today, I will simulate a cathode-biased amplifier using 6SN7 tube model and compare the simulation to the data sheet. These are octal based tubes and were released early on, far before the small 9 pin preamp tubes we are familiar with today. The result of a partially bypassed cathode is a shelving frequency response. by Ken Micallef. As a comparison a jack hammer puts out 100dBs of noise. D. Contact Us. With 6SN7 NOS, we need to look at the original data here. Fremlin describes the theory which applies when the grid is closer to the cathode than its pitch. 98 / piece. GE made the worst sounding tube. I am very happy with the sound of the stock 6N8P's but found some good comparison info on this Best new production tubes? There is only ONE 'current production' 6SN7, the Sovtek/EH one. Actually, the structure is same as RCA 5692 Not finding what you are searching for. 6 dc position intermediate shell REVIEW: Vintage RCA 6SN7 Driver Tube from Vintage Tube Services – Part I. To my ears, the Model 99 has always had the most classic defined tube tone of the Rogue preamps, due to the 6SN7-utilized design. The are not at 9mA any more, as they are supposed to be. I'm going to have you step into the way back machine again. In effect a long distance shootout between his TJ Full Music 6SN7, CV1988=6SN7GTY / 6SN7GT Brimar England 1950's-1970's (highly recommended, the best sounding 6SN7 for the money; it's strengths are its super soundstage - very wide open sound, it's a very musical tube, good midrange detail and high-end extension, bass ok but not thunderous) - Deja Vu Audio Type 45 amp - Cary preamps and amps - Singlepower - Ultraverve - Wyetech Topaz 572B SET amp - Cary / AE-3 The photos and comparison chart in this article compares and contrasts the current production Russian-made Sovtek EL84 and Genalex Gold Lion N709 / EL84 with the vintage Genalex Gold Lion N709 / EL84. Northern Electric 6SN7. Some of the pages are in other languages, particularly German. RCA Red Base. 12AU7 vs 6SN7, or other tube based preamps Swapping one of Naim Audio's preamps ­ an obvious choice in this regard ­ directly into the system for comparison isn Tubes used in the CDP throughout this comparison are a pair of NOS British made Brimar 12AU7’s manufactured in the early 1960’s. This is one of the only New Production 6SN7's available and given how musical and warm it sounds, I'm not sure we need any others as long as they keep making this one! twin triod, 12AX7, 12AU7, 12AT7, 12AY7, ECC81, ECC82, ECC83, ECC85, ECC88, ECC802S, ECC803S, EF86, EF80, preamp tubes 6SN7 VT-231 5692 Tube Audio Performance – Chimera Labs Revised 05/2003 This is the fifth update on the sound performance of the vintage 6SN7 types. To Miles every fallen gold aspen leaf is worth bending over taking a look at just as each full moon is magical and its following new moon raises the same question, "Daddy, where moon go?"Jozsef, I cannot comment on that. factor is 20, so what is the differance in signal strength in the same circuit? 6sj7 / 6sn7 / 6sl7 View as: List Grid Show 5 10 15 20 25 All per page So in your opinion the Northern Electric didn't really compare to the Psvane? No! I would try another Psvane. NOS SYLVANIA 6SN7-GTB - $103. 00. Posted on May 25, Here, for comparison, are the two tubes, side by side 9-pin Preamp Tube conversion to Octal 6SL7 or 6SN7 I have one of the Electrosonic adaptomatics and in comparison to a 12ax7 it gave a warmer and more compressed Power transformer is now 9*C cooler and the sound is even more dynamic then before. It provided a medium gain (20). They are somewhat similar in gain About Sophia Electric 6SN7 tubes. The SERP, in comparison with many other Chinese 300Bs, is built like the proverbial battleship The 6SN7 tube is a medium-mu twin triode in an octal based package, usually glass, although some metal envelope types were made. Very interesting two reviews of JJ 300B tubes. A while back, I did a review of the Deluxe Midwest Classic 2A3 SET amplifier. The tubes Mick supplies are mostly current production tubes, which sound decent, but can't compare to NOS tubes. I've been running a few tests on some reasonably high-Gm pentodes, in …So i have started marking my music with the tubes i think sound best with that recording. The 6SN7 has a gain of about 20 and could be compared to a 9 pin 12AU7. II Review By Todd Warnke Click here to e-mail reviewer One of the great joys of sharing time with a two-year-old son is seeing the world through fresh eyes. Our classic kit, the Kit1 The fastest way to go from Zero to Audiophile in one product! ANK Audiokits is proud to present our latest version of the classic Kit1 we are calling the Kit1 -300B 2014. FWIW, I tried several highly recommended NOS RCA's from the '50's in my Oppo; all sounded rather recessed and a bit dark compared to early The 5692 is a commercial "premium" version of the type 6SN7 tube. All new tubes had at least 20 hours of burn in time on them 6SN7 / 5692 Tube List. This system's upstream gear consists of a McCormack Drive SST-1 CD transport, a Line Magnetic 502 CA tube-based DAC, a Schitt Audio Saga 6SN7-based preamplifier, and either the solid-state Usher The price is a give away, but please search for 7N7 in the general price list. As for 6SN7 tubes the Best of 6SN7 and GZ34 (Dec 98) Lee HC’s Summary: For the 6SN7 match, the Osram B65 enjoys the highest total score, very closely followed by the 33C30 and TFK 6SN7. max. 45. Issue here is high frequency. Rectifier Interchangeability and it's relation to Clean Headroom Here's the list of the most common guitar amp rectifiers in order of most to least clean headroom (highest to …DIY Audio Home. Feel free to email How does it compare with a TV-7d/u? the 6SN7 is an excellent tube for the application and the 7 will provide plenty of swing ALL 6SN7 types, including all 6SN7GT /G, 6SN7GTA / GTB, 6SN7W / WGT / WGTA, VT231, metal jacket types, JAN military versions, greyglass, and 5692 industrial redbase, brownbase, blackbase types. Premium Grade Matched Pair Tubes PSVane When you compare device specifications, take a close look at the ratio of 2nd to 3rd harmonic distortion for a basic single-ended circuit. Its closest cousin I just picked this one for comparison. Generally speaking, the 6n6p is an “easier load” than the 6h30. The phase inverter is a self-balancing split load configuration utilizing the 6SN7 octal base dual triode. The 12AX7 family of dual-triod preamp tubes consists of the 12AX7, 5751, 12AT7, 12AY7, 12AV7 & 12AU7. With the same plate voltage and cathode resistor, the 6h30 should allow more current to pass than the 6n6p. Introduction. This range includes Jets, MOD, Vintage, Alnico and ceramic and from 5" through to 15". Add to cart View. Quick View. May 14, 2008 As a comparison, Jones showed an average for Russian 6J5s (his choice for a driver tube for the Crystal Palace amplifier) of -52dB Does anyone here know if Mullard actually made 6SN7 tubes. We carry premium hand selected vacuum tubes for guitar and HiFi amps. An excellent compendium of American tubes, especially the obscure ones. Experiments with an Ixys current regulator as a CCS plate load. 7, Rp=4. In the past, this tube was known simply as a favorite driver for the old Macintosh amps, or as an inexpensive alternative to the 5687 and the 12AU7. But the EH are quite good. E. For the line stage I used a 6SN7. Select to compare. Just like the 5692 (6SN7 version), these have 5 vertical support rods and extra heavy duty mica spacers for superior rigidity which result in …The concept of tube rolling is understandable. My Cart. This feature is unique to Solstice allowing even MOAR tubes to be rolled and tried! 3 No 3+ Select to compare. NOTICE: Be sure to enter the Make & Model of component A Comparison of Current Production 12AX7 Tubes. Audio tubes for guitar amplifiers and audiophile equipment. Our audio store provides qualified consultation & advice. Don’t confuse these with any other EL84 on the market. If you don't see what you are specifically looking for A re-post from Wall of Sound, Comparison Review by Noam Bronstein. We have been designing, building, and selling high efficiency DIY full range speakers--using full range drivers--for more than 25 years now. Feb 07, 2010 · With respect to audio reproduction there is a fairly large difference between these three tubes. Triode Mode. Sophia Electric Royal Princess 300B and 6SN7 Tubes Review. Quickly compare products with our new See more like this 1× 6SN7 To ECC83 12AX7 12AU7 Vacuum My 6SJ7 gave a gain of -60 at V bb = 90 V, It is very satisfying to be able to compare the behavior and use of remote-cutoff, sharp-cutoff and power pentodes. ECC82 vs. here is our Dynaco ST70 page This board uses three 6SN7 tubes rather than the smaller 12AU7 type tubes, The original amp sounds muddy in comparison to the One is an SET amp (6DN7 into 572-10) and the other is the Ultrpath preamp with a 7193 replacing the 6SN7. Brands include Electro Harmonix, Tungsol My response always seems lame an uninformed in comparison. I can compare tube rolling to playing with an EQ. The 5692 is a commercial "premium" version of the type 6SN7 tube. I have the I have gone through a ton of the RCA 6SN7's, they are hard to beat for quality sound. Product Comparison. "The Kit1-10th 300B C-Core is the ultimate incarnation of the original Kit1, considered the finest 300B amplifier in the world available in kit form. Perhaps that is some of the reason for a higher price. Hi RAT's, I'm curious about the comparison of these two tubes. Galen Carol Audio's experience offers a complete understanding of high-end audio in general. However, I had an opportunity to compare my preamp with select the first character of the tube 0: 1: 2: 3: 4: 5: 6: 7: 8: 9: A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P: Q: R: S: T: U: V: W: X: Y: Z > 6/2(1-500) 644(501 6L6 comparison chart. Application to Audio, by John Hunter, August 2002, March 2003. Thanks! Mike, Thank you for recommending the NOS RFT 12AX7 to warm up my 65 Amps Empire. 6Kohms, Pa=1. 4W) 6SN7 aka CV181. Review Procedure. Prior to that I modified commercial products for many years. 6SN7/CV181 6V6 805/805A 807/FU-7 811A/FU-811 812 845 EL34/6CA7 EL84 KT66 KT88 Psvane HiFi Series Replica Series Treasure MKII Series Treasure Series Shuguang Natural Sound Series Treasure Series Replica Series HiFi Series TJ FullMusic Golden Voice Electro Harmonix Genalex - Gold Lion JJ Electronic MULLARD SOVTEK SVETLANA TUNG-SOL Tube Kit A Tale of Two Homebrew 6SN7 QRP Transmitters. The Midnight Special Head is the enhanced head version of the tried-and Octal base preamp tubes 6SL7,6SN7 It is only when you compare it to other amps that [EL34 SE V Amplifier Full Kit] Analog Metric www. By looking at the internal plate structure, it is more of a European tube structure rather than North American 6SN7. The Sylvania metalbase are exceptional also but hard to find quiet ones and that was 10 years ago. The 5963 . com. Sibley, Ludwell, Tube Lore, privately published, 1996. 5691 Red Base. The unit is on kind loan from a member who has been patiently waiting for its review. 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. but this paled in comparison to the German Magnetophon technology that AMPEX built on, The Western Electric 421A is one of the best ever, large dual triode tubes intended for preamp use. European made tube are hard for the U. Sophia Electric 6SN7 tube does not look like a typical 6SN7. GINI Systems. all I had to compare were the stock Russians, a fellow pair of ElectroHarmonix and my prior go-to valve, the Create Hifi built by Shuguang with outsourced metal . 40 / lot. 9-pin Preamp Tube conversion to Octal 6SL7 or 6SN7 I have one of the Electrosonic adaptomatics and in comparison to a 12ax7 it gave a warmer and more compressed REVIEW: Vintage RCA 6SN7 Driver Tube from Vintage Tube Services – Part I. This twin triode is used in my headphone amp and preamp Feb 6, 2011 6SN7 Comparisons. Traditionally considered to be a superior choice to 6SN7 types. Burning In 6SN7 Tubes for the Dark Voice 336SE Headphone Amp July 7, 2016; Chicago Blues Box Amps – Dan Butler Interview June 9, 2016;5691 Red Base. Portrait of a Tube. The 6SN7 is basically two 6J5 triodes in one envelope. Each brand of tube may sound different in a particular high-resolution circuit. These are all pin compatable with one another, the only differences being the gain factor of each tube. The 6SL7 is a high gain low current amplifier and the 6SN7 is a rather low gain higher current tube. analogmetric. RCA and Sylvania first introduced the 12AX7 to the world in the late 1940s. Compare (0) Showing 1 - 8 of 8 items 6sl7 vs. more brands of the 6SN7 to test with - both Sovtek Line Magnetic 219ia Integrated Tube Amp Review! 300B and 845 Tube Magic! reissues for the 12 ax7 and 12 au7 and Tung Sol for the 6sn7 (dealer recommendation . To the right is a similar rotary knob that dials in 'negative feedback' on a global basis and is adjustable from "off" in a continual rotation to a max of 10 dB of feedback. Add to Cart. Tough double triode thick glass enveloppe amplifier tubes manufactured in Russia by 12AX7 Family Tube Substitution. 6L6 tube types in stock now Scroll down to browse our current selection of vintage 6L6 tubes and burned in, tested, and precision matched new production 6L6 power tubes. "firsts in High Fidelity"May 31, 2010 · The 12BH7 shares many similarities to the 6SN7 (also a favorite tube around these parts), but is characterized by a darker sound. Guys: I have a friend that is waiting for a pair of these: http://grantfidelity. Since the Schiit Freya is the only other affordable 6SN7 based preamp we are currently aware of, a comparison is warranted. Posted on May 25, Here, for comparison, are the two tubes, side by side Add to Compare → 12BH7 EH - Electro Harmonix - One matched pair 6SN7 EH - Electro Harmonix - One matched pair . The Grant Fidelity A-348 Amp uses a quad of KT-88, two 12AX7 and two 6SN7 tubes. Brands include Electro Harmonix, Tungsol The 6SN7GTB is the low noise version of the 6SN7, 6SN7GTA, and 6SN7GT. In fact, most sites stated that Mullard never made those type of tubes. Terry London reviews Tekton Design's new Impact Monitor, a three-way, nine-driver speaker that features the company's proprietary high-frequency driver array flanked by two 6. The 6SL7 can only handle 2. by Bill Cowen : I would consider replacement of the Sovtek 6SN7 input tube as a must. In Search of the Perfect 300B Tube Page 3. They do Barbour, Eric, “6SN7: Driver of Choice”, Vacuum Tube Valley, Issue 11, Spring 1999. NB: the ‘L63’ valve is simply a 6J5 – aka, one half of a 6SN7. These are also available Balanced and matched in pairs or multiples. EL34 / 6CA7 / KT77 Tube Reviews and Comparison Chart. CV1988=6SN7GTY / 6SN7GT Brimar England 1950's-1970's (highly recommended, the best sounding 6SN7 for the money; In comparison my Ken Rad's sound dead. $500 per tube PrimaLuna DiaLogue Premium Preamplifier Review