300b Tube Equivalent

I have heard the Wright Sound 300B are supposed to be quite good and very afordable. ur siemens is which model,,if u can explain to us in details the result if changing the siemens tube will be benifits to all's. Price varies as per driver tube selected. 6B4G base is US octal and 6. Atarashi utilized this amplifier for another article, "10 Output Transformers Sound Comparison on 300B / 6BQ5 Single-Ended Amplifiers" from the "Tube Kingdom" 2004 Spring issue Vol32. In our Neo-Classic 300B Preamplifier, we combine the classic 300B with another classic - the octal-based 6SL7GT dual triode to perform the amplification duties. Powered by Create your own unique website with customizable templates. It was a commonly used tube from the early 1940's into the late 1950's. ) - see our 1627-1642 series. What tubes should I get for my Manley Neo-Classic SE/PP 300B? You can get a complete retube kit right here on our webstore. This was used as both power amp with 5k optx and also as a driver for 845 with Hammond 126B IT. New Tubes for such as 45, 2A3, 300B equivalent. Siberian-shop : High-End tubes - High-End tubes Manuals & Books Magic Eye tubes Capacitors Chips \ ICs \ CPUs Nixie Sockets Numitron tubes Vintage electronic Rare\vintage tubes Power tubes Dekatron Counting tubes HAM Radio power tubes Tungsram tubes Tesla tubes RFT tubes POLAM tubes TALAM\UNITRA tubes wholesale offers Sale! nixie clock kit, nixie clocks, tubes television, tubes for amps. Current output tubes fitted are JJ300B. I have used a couple of amps in the video and made cathode current and power output measurements on. Tube rolling with the VTA180M is effortless. It confirms from the tube curves, they are magnificent. It proves that SV811-3 has excellent linearity and a low distortion tube equivalent to 300B. Actually the term dual plate is a misnomer. I then fed the Aikido a 1kHz signal. It is a long page, use your scroll button and scroll down the page to see it all. OVERVIEW The 300B PSE is an unusual single-ended tube amplifier that I designed in 2002. This tube gets much closer to what some tube-ophiles refer to as "velvet in a bottle", more so than either the 300B or the 2A3. Perhaps the Manley would sound different if one tried General Electrics or other brand 300Bs. If you searching to test Ar 15 Ar15 Barrels Cheaper Than Dirt YAQIN YAQIN MS-300C 300B X2 Vacuum Tube Hi-end Tube price. Brief of Tube Models and Replacement Brief of Tube Model and Replacement The blog collects some tube models and give them a brief, also you can do a simple replacement, but for details, you need search them and get detailed parameters and curve. 5-10 Watts of pure class-A power. We literally have thousands of great products in all product categories. The spreadsheet then gives you the approximate parameters (MU, gm, rp) and then provides a set of plate curves associated with that geometry. Projects by fanatics, for fanatics!. tube's lifespan and ensure the amplifier is not damaged. Nobsound 300B 6N8P Integrated Vacuum Tube Amplifier HiFi Stereo Class A Single-Ended Audio Amp. If you're still in two minds about 6n8p tube and are thinking about choosing a similar product, AliExpress is a great place to compare prices and sellers. Anyway the driver tube also play quite important roles. Free UPS Shipping on Orders over $195. It has a pair of Shuguang factory matched 300B-98 tubes, a pair of NOS Tung-Sol or British military 6K7G pentode tubes, and one Russian 5U4G recifier tube. How robust or saggy the supplies are comes into play as well. THE EVENT: PX25 vs Wai Lee vs 300B (L-O-N-G) Showing 1-52 of 52 messages. Buy NPA-300B-015G with extended same day shipping times. A WA5-LE (Lite Edition) is also available that forgoes the ability to drive speakers or the AKG K1000, which starts at $2750 and again has numerous tube and component upgrade paths. Power Tube Descriptions JJ Electronic EL84 Factory Data Sheet: EL84 Factory description: Gold plated control grid for improved fidelity and a plate dissipation of up to 12 watts. 2 C-281(281)-Qty. Features: Separate transformers for high and low voltage - minimize noises caused by voltage interference inside the amp. 4 inches high and 2. Listed price is $2,799. Connect the best quality 22uF/450V (value quite critical, 23. C c is the value of the coupling capacitor in Farads, and R eq is the sum of the driver stage output impedance and the power stage grid resistor in ohms. Chosing A Replacement Output Transformer Now lets assume we have a set that has an output transformer with an open winding that must be replaced, and the output tube is a single 6F6. This is not the case with 2a3 and 45-based SETS. The 300B Tube Lives Again! BY HOWARD W. As the results, Mr. pdf (910982 bytes) 5-125B (= 4E27A) Eimac P~ 4E27A. Parts Express stocks and ships free - Vacuum Tubes from the category of Vacuum Tubes & Amp Parts in the Electronic Parts Department. Especially for the owner of low-efficiency speakers who prefers the 300B tubes because of its fantastic sound performance but that lacks the necessary capacity, the 845 tube is a more than equivalent substitute. Brand New Factory Tested Electro-Harmonix 300B Gold Grid & Pin Vacuum Tube This new production EH 300B Gold Grid offers the same specs of vintage Western Electric 300Bs like wide-shoulder ST shape, 40 watt plate dissipation, and 8-course directly heated filaments it adds a few more upgrades. For large output tubes like 300B or even 211 where the 6N7 has too high of a drive impedance, the 6J5 is not much better either. In addition to a Western Electric 300B reissue, which is a faithful copy of the original, I was also fortunate to have on hand samples of the Sophia Electric Princess mesh-plate and carbon-plate 300B tubes. The ultimate 300B tube. Each TJ tube has a built-in serial number and is tested in our workshop before shipping out, therefore we are confident to offer 12 month warranty. very nice pictures. These awesome amps will deliver terrific tones at lower volumes than higher watt counterparts. We have General Electric (USA, not UK)and RCA recieving tube manuals for sale, as well as the RCA Transmitting Tube Manual TT-4, and a book of data on Western Electric tubes. A-311 M series are all monoblock single-ended power amplifiers. We design and manufacture our tubes, engineered for demanding high fidelity, reliability and overall warmth. TRiode Base: 4-PIN CERAMIC BASE Uf = 5 V if = 1,3 A Typical Characteristics: Ua = 300 V Ug1 = -61 V ia = 60 mA S = 5,5 mA/V Ri = 700 Ω µ = 3,85 Limiting Values: Ua = 450 V Wa = 40 W Maximum plate curent of everage tube for fixed bias ia = 70 mA Maximum plate curent for manually adjusted grid bias or self-biasing ia = 100 mA. Molded after the famous GE 6072A - this tube has the correct medium mu. The best small tube amps will give you pushed tube tones at reasonable volumes. Let's have a look at the plate curves. 2 I would be looking for the original, working (no duds) tubes for this set which are all globe style. The 300B tube has the bayonet pin so located that it may also be mounted in a Western Electric 100M, 115B or similar socket. 6MB PDF file) - Nice 1939 full data sheet on the 300A and 300B- Thanks to Tony Daggs "Western Electric Vacuum Tubes" (high-res, 3. Audio HiFi tubes China. Mise en place des tubes et raccordement sur le système en place (Lecteur CD Audio Research CD3, Préampli Audio Research SP16 et encientes Triangle Zerius) puis mise “à feu”. If the Frankenstein is affordable, and it works with your speakers, then it is my first amplifier choice, unconditionally. This video was inspired by a question I was asked about swapping KT88's in place of EL34/6CA7's. tube amps don’t have to be expensive. This is an ideal combination of pure direct heated triodes, resulting in unparalleled faithfulness to the incoming signal, incredible musicality and detail, and quick, articulate bass. Need vacuum tubes? Want to build your own amplifier? Have an unhealthy HiFi obsession? We've got you covered. NOTE: If fitting screen is found to be dislodged, the rockshaft control valve must be removed and inspected for debris. Shuguang Treasure 300B-Z US$560/pair Rating 8. You can find Russian tube data by replacing the cyrillic charactes by latin characters. Shop Petco for a variety of pet food, supplies, and services. 2A3 6CA7 6CA7-Z 6SL7 6SN7 12AT7-T 12AU7 12AU7-T 12AX7-LS 12AX7-T 211-T 211TII 274B 300B 300B-T 845-T 845TII ACME845 Cary 805AE Cary SLP-05 CV181-T CV181-Z EL34 EL34PH emission KT88 KT88-T KT88-Z / KT88-T/TII KT120 KT120-Z packaging Psvane psvane 845T Psvane HiFi Series tubes Psvane T-series psvane teflon caps quad RMA shipping Testing in China. Brand New Factory Tested Electro-Harmonix 300B Gold Grid & Pin Vacuum Tube This new production EH 300B Gold Grid offers the same specs of vintage Western Electric 300Bs like wide-shoulder ST shape, 40 watt plate dissipation, and 8-course directly heated filaments it adds a few more upgrades. Let's have a look at the plate curves. 01μF and an equivalent resistance of 1,036,700ω (1Mω + 36. Other designations & compatible substitutes: 12AY7, 6072A, 12AV7 & 5965 will work in most applications but the plate resistance and Gm figures are different so YYMV. Browsing for 300b tubes for sale? The best online shopping experience is guaranteed! 552 300b tubes products from 184 300b tubes suppliers on Alibaba. tube amps don't have to be expensive. Parts Express stocks and ships free - Vacuum Tubes from the category of Vacuum Tubes & Amp Parts in the Electronic Parts Department. Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics. Especially for the owner of low-efficiency speakers who prefers the 300B tubes because of its fantastic sound performance but that lacks the necessary capacity, the 845 tube is a more than equivalent substitute. » Protection and overload system to protect the tubes and the amplifier against tube damage and operating errors » Adjustable BIAS levels to allow the use of different 300 B-tubes: low, medium and high (equivalent to 25mA, 50mA and 70mA quiescent current per 300B) » BIAS meter for controlling the three output tubes. As the results, Mr. As one well know reviewer said of it : "It is the sonic equivalent of a rich milk shake". In general, the KT88 tube has a magical mid-range similar to the smaller EL34 tube, but with low and high end extremes that reach much further More Details. This has happened to the 300B and the 274B rectifiers in particular. gec tt-21 (sold) The TT-21 is a KT-88 equivalent except it has a higher plate voltage maximum rating. It is convenient if you look for a vacuum tube in reference mode (Ctrl key +F key). VIVA TUBES Vintage NOS & Used Vacuum Tubes. Tube socket adapter/conver ter. If you haven’t owned any tube before, we recommend you not to start with a 845 /805/211 tube amps until you get comfortable with maintaining a lower voltage tube amp such as EL34 / KT88 or 300B amps. The Clementine can be configured to use with 1626 Darling tubes (hence the cute name oh my darling Clementine) to output 3/4 of a watt or with 6L6 tubes (equivalents: 6L6GC / 807 / 1625 / 6BG6) for a fruitful yield of 5 watts (see what I did there?). WAC Lighting Tube Arch. Cary Audio Design's Dennis Had succeeded in producing what many believe is the definitive moderately sized single-ended triode (SET) amplifier: the CAD 300SE. Dear Srajan, The 5687 was designed in 1948/49 by Tungsol (I have 4 of the original factory test samples with dates!), the very early versions are by far the best sounding but extremely hard to find in good working order, otherwise the equivalents are,. If you're still in two minds about 6n8p tube and are thinking about choosing a similar product, AliExpress is a great place to compare prices and sellers. Nos Siemens F2a Tubes Matched Pair 2pcs In Original Box Sn 137293, 146436. 75) Posted by Al Noakes on 2014-02-22, 00:48:54 (82. Siberian-shop : High-End tubes - High-End tubes Manuals & Books Magic Eye tubes Capacitors Chips \ ICs \ CPUs Nixie Sockets Numitron tubes Vintage electronic Rare\vintage tubes Power tubes Dekatron Counting tubes HAM Radio power tubes Tungsram tubes Tesla tubes RFT tubes POLAM tubes TALAM\UNITRA tubes wholesale offers Sale! nixie clock kit, nixie clocks, tubes television, tubes for amps. Buy online or in-store and save on orders with repeat delivery!. 95 for each program. We'll answer any questions, supply more details or photos on any item and you may inquire about the availability of testing or calibration of any product we have in stock. New Gain Tested Electro-Harmonix 12AY7 / 6072A Vacuum Tube One of the only current production 12AY7 tubes on the market. For push-pull output use, see our 125 series. Distortion factor characteristics Without NFB. The 6SN7 and it's equivalents were once the most popular tube. Cetron and chinese versions of that tube are not electrically equivalent: bias point must be recomputed. Thousands of Audio, Radio and HAM vacuum tubes. Any speaker now being successfully driven by any SET amplifier of 40 watts or less ( 2A3, 45, 50, 300B, 211, 572, 845 etc. 5Z3P is a Chinese rectifier tube model substituting 5U4G. Don't forget, I have had many 300B amps before, including Audio Note Kit One, Audion Silver Night and AES SE-1 and have heard even more (I refer you to my ancient big 300B report ). AVVT has since changed the tube and it now sings gloriously, yet at the time of this review we did not have the newer version for full review. 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. From Lundahl, high value chokes are available at the same price as HiFi capacitors, like from a Mundorf or Black Gate. Dual triode design, premium matched not only for the pair but also between the two triode tube sections right out of factory to serve outside of China market. Most tube amplifiers I’ve had were power my 2. The 12AU7 is not considered a satisfactory replacement for a 12AX7 or a 12AT7. gec tt-21 (sold) The TT-21 is a KT-88 equivalent except it has a higher plate voltage maximum rating. Try this with a 300B! The 6C45Pi seems to be the Russian equivalent of the 5842. Compared with the same price competing products, 300B-SEN has a leapfrog technology and valuable musical sense, and compared to similar technology and manufacturing technology competing products, 300B-SEN has a more affinity with the price. Can I replace the 5U4 in the 300B SE/PP power amplifiers for NOS Mullard GZ32? No. Specs are pretty similar but construction wise is night and day! This tube has hefty plates. Browse your favorite brands affordable prices free shipping on many items. "If you don't dig the blues you got a hole in your soul" Albert King Blues touches the soul of those who have had a hard life and survived to remember where they. I had in mind to build a 300B amp some day and saw something interesting with a 6EM7 as front tube. And I like this 6AQ5-6AQ5. PolyLube 1000™ has an extremely high shear strength to protect vital parts under extreme condition. » Protection and overload system to protect the tubes and the amplifier against tube damage and operating errors » Adjustable BIAS levels to allow the use of different 300 B-tubes: low, medium and high (equivalent to 25mA, 50mA and 70mA quiescent current per 300B) » BIAS meter for controlling the three output tubes. 5 increments allowed. 300B Single Ended Triode vacuum tube stereo amplifier. You even can look up radio models with a certain tube line up. 95 for each program. The spreadsheet then gives you the approximate parameters (MU, gm, rp) and then provides a set of plate curves associated with that geometry. 00: 30AE3: 30AE3, PY88: 3. 0 speaker setup. The TA-274B delivers the ultimate vacuum tube quality that only Takatsuki Electric, the one and only vacuum tube manufacturer in Japan, can offer. A full comparison of pretty much all currently made 300B equivalent. The filaments are powered by a rectified voltage, which contains a lot of higher-order AC mains harmonics. But someone who was influential - 70 years ago said that 300B is THE TUBE - and the world took this as an 11th commandment. 025% for a full 1Vrms output driving 600 ohm load. It comprises two filament type diode units with a common filament. In each case, the waveform is fine. I insist the set of tube names that should sound nice to me. 100% guarantee that our tubes will arrive as described and sound great. When used like this, due to the stronger electron emission, this tube will develop the output signal with more ease. It measures 6. Shop more than 1. If your trying to cut the gain in your amps drive channel you might be interested in a hybrid tube we're using in my Prosonic and 5150 to cut the gain, it's called the JJ ECC832 which is a 12DW7. Tube rolling with the VTA180M is effortless. The Svetlana 300B is a power triode intended for use in class A, AB or B audio amplifiers. AMT Electronics is proud to introduce our new line of solid state vacuum tube equivalent tubes! Design engineers at AMT have successfully produced solid state replacement tubes that has the same identical characteristics, power curves, nuances, warmth, and feel of real glass vacuum tubes. Let's have a look at the plate curves. I tried several driver tubes with wide-ranging results but this beats them all. You will find thousands of tubes or valves with interesting links. A 300B parallel single-ended tube amp Matthias Brennwald, www. Because the CCS/choke load is a high impedance and the tube is relatively low impedance, less of the power supply ripple appears across the output in comparison to an equivalent series feed stage. mono block 300B Single Ended Amplifier 1st idea of 300B Single ended Amplifier almost a half year ago He has one plan for build up 300B SET around a half years ago sent me one of abave picture ,I will show you some pictures next. It makes things very easy if you have four DMM's for the various measurements. Get it as soon as Thu, Aug 22. Alternative or equivalent tubes would be used as "for radio use". is the use of thoriated tungsten filaments. Item # PPL-1 / Tools / Lubricants & Compounds PolyLube 1000™ Lubricant (Tube) Park Tool's polyurea lubricant was developed specifically for bicycle maintenance and repair. Introduction 6F5P is a Russian TV deflection triode/pentode combo tube, somewhat like ECL85/6GV8. com [ Other Parts | Search] Last changed: 02/01/15. Find our selection of light bulbs at the lowest price guaranteed with price match. S-5 Electronics K-12M Tube Amplifier Kit S-5 Electronics K-12M Tube Amplifier Kit 7 Tube Stereo Output Amplifier S-5 Electronics K-12G Tube Amplifier Schematic - DIY Audio Projects Simply elegant design - Sherwood S 5000-II tube amplifier. Abstract: 300B triode Svetlana 300b tube SV300B 300b power Triode 3000 watt audio circuit diagram "Power Triode" tube 300b Western Electric Text: SVETLANA TECHNICAL DATA SV300B Low-Mu Audio Power Triode T he Svetlana SV300B is a power triode intended for use in class A, AB or B audio amplifiers. 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. 50 each for singles, $329. Tubes used for new hifi amps, preamps and buffers: The most popularly used tubes for hifi include the 2A3 & 300B triodes, KT66 & KT88 beam tetrodes, EL34 & EL84 pentodes, 5AR4, 5U4G & 274B rectifiers, as well as the 211, 805 & 845 transmitting triodes for power amplification; and the 12AT7, 12AU7, 12AX7, 6DJ8, 6SL7 & 6SN7 for buffers, drivers. This page lists all of the 6SN7 tubes I currently have in stock, including all industrial and European versions. 300B Triode Vacuum Tube Comparison Review May i first set the "ground rules" here. The KT88 audio tube is considered to be one of the best sounding power tubes for hifi tube audio amplifiers. This makes the sound character less dependant on the speakers, and for that reason quite dependant on the tubes itself. Shop Petco for a variety of pet food, supplies, and services. select the first character of the tube. Pour le reste tout est conforme à l'annonce : un tube redresseur chinois 5Z3P, deux 6N8P pour les étage d'entrée et deux 300B-98 Shuguang. KR Audio PX25 Tube - Pair (2 matched tubes) KR-PX25-UX/2 KRON Audio PX25 UX Matched Pair with UX4 base Low Frequency, high power triode. As one well know reviewer said of it : "It is the sonic equivalent of a rich milk shake". For help with Conduit Hub, Type: Bonding, Size: 3", Insulated, Malleable Iron from Appleton, call Platt at 800-257-5288 from 4a - midnight (pst) 7 days. New Tubes for such as 45, 2A3, 300B equivalent. So this tube is the finest of all AD1 you can ever get. 2 as is a standard 300B. This has driven the price up considerably. All things being equal (which they never are), a 2A3 amp with my high gain preamp takes away the 300B's edge in power. 6MB PDF file) - Don't know the date of this, but this short-form catalog has summary data on the 100, 200, and 300 series of tubes- Thanks to Tony Daggs. Excellent Customer Service. It is dedicated to be used in audio frequency range which requires the output power 100W. LTSpice and vacuum tube models - last updated 11/11/07 17:12:08 Here's a step by step for using the generic triode model with LTSpice. It is slightly larger in size than the American tube. This is an extensive version of the HPA Master headphone amplifier. Siberian-shop : High-End tubes - High-End tubes Manuals & Books Magic Eye tubes Capacitors Chips \ ICs \ CPUs Nixie Sockets Numitron tubes Vintage electronic Rare\vintage tubes Power tubes Dekatron Counting tubes HAM Radio power tubes Tungsram tubes Tesla tubes RFT tubes POLAM tubes TALAM\UNITRA tubes wholesale offers Sale! nixie clock kit, nixie clocks, tubes television, tubes for amps. Need vacuum tubes? Want to build your own amplifier? Have an unhealthy HiFi obsession? We've got you covered. You can set your address, phone number, email and site description in the settings tab. Hundreds of users reported Sophia Electric 6SL7 tubes are better than the vintage 6SL7 tubes being replaced, even the best from vintage time. What tubes should I get for my Manley Neo-Classic SE/PP 300B? You can get a complete retube kit right here on our webstore. Alternative or equivalent tubes would be used as "for radio use". This was used as both power amp with 5k optx and also as a driver for 845 with Hammond 126B IT. The 5V4/GZ32 has lower current ratings than the 5U4 that we use. 95 for each program. Most tube amplifiers have the same phase inverter and output stage circuit. This trip under the hood we’ll explore output tubes—the big bottles at the back of your amp that pump out the serious wattage. Recommended by engineers who design, develop, and test John Deere engines. By now you already know that, whatever you are looking for, you’re sure to find it on AliExpress. I don't remember exactly what it was that drew me to Kevin Kennedy's pages, but when I read about the push-pull 300B circuit on his amplifier projects page, even without seeing the circuit, I thought "That's it!". I copied 3 tube symbols from Misc to a new directory sym\tubes. Is this a result of the 300B tube? When I asked David Tonelli, he replied that he had never heard two 300B units sound alike. It is easy for antique collectors, ham radio operators, audio enthusiasts, broadcast enthusiasts and amateur radio hobbyists to buy, sell and trade vacuum tubes, electron tubes, audio tubes, valves, grid caps, sockets and capacitors. These are known to be great sounding tubes and are a good alternative to the very expensive single plate version. The 300B is run hot at 33W (376V/90mA) with a fixed bias of about -78V. Package Include:. S types in stock. Once the tube has been tested for shorts and grid leakage, the measurements for each triode is taken. 50/matched pairs. 300B Valve. If you want low cost 300B tubes, try the nickel plate Chinese from either AES or Angela. Class A Single Ended Triode operation is the simplest and purist circuit possible. We'll help you to work out whether it's worth paying extra for a high-end version or whether you're getting just as good a deal by getting the cheaper item. A volume control on the front and mono inputs on the rear means that a pre-amp is not necessary, but is advised. STONE In this article, Howard Stone first leads us through a nostalgic history of the Western Elec tric Type 300B audio amplifier triode tube. The EML 320B-XLS will bias like a normal 300B tube, when used in any 300B amplifier. I feel confident that the Frankenstein will work with: 1. What tubes should I get for my Manley Neo-Classic SE/PP 300B? You can get a complete retube kit right here on our webstore. The amount of play you can have with one tube of 300B's are roughly equivalent to 3 tubes of Yonex AS10s. It looks like a 6V6 tube (American equivalent to Russian 6n6c) that was used for printing practice, amateurish at that. Curve tracing can reveal problems that are hidden in other tests and ensure a better matching. This is a heavy hernia beast. outstanding performers and are (by 300B standards) reasonably priced! $163. Since those days a true Aladdin's cave of 300B valves have become available. 00: 30A5: 30A5, HL94: 9. could do that, at best it might be as warm as Aficionado (which was not warm enough even for Utopia). I have a hard time believing the label on the tube. YAQIN YAQIN MS-300C 300B X2 Vacuum Tube Hi-end Tube. It is a long page, use your scroll button and scroll down the page to see it all. Browsing for 300b tubes for sale? The best online shopping experience is guaranteed! 552 300b tubes products from 184 300b tubes suppliers on Alibaba. In addition to inventing your own "dream tube" you can enter dimensions of an existing tube (6SN7, 300B, 845 or whatever), and get a set of nice, clean, large plate curves. Consider the Genalex KT88, KT77, KT66 and 300B tubes when looking for premium audio vacuum tubes for use in high end tube audio amplifiers. The EML 320B-XLS will bias like a normal 300B tube, when used in any 300B amplifier. Brand New Factory Tested Electro-Harmonix 300B Gold Grid & Pin Vacuum Tube This new production EH 300B Gold Grid offers the same specs of vintage Western Electric 300Bs like wide-shoulder ST shape, 40 watt plate dissipation, and 8-course directly heated filaments it adds a few more upgrades. ch October 2015 1. Call: 04 210 477 48 / 03 983 08 220. Excellent Customer Service. The most important influence on changes in the character of the sound has a single driver tube, followed by a pair of power tubes. I also wanted to develop a driver for an SE amp with a follower output stage, which would require a tube that can idle at 500V or more on the plate. smaller triodes tubes might run out of steam. No, 300B tubes weren’t designed to pound out heavy metal, rap or techno. We have replaced the Full Music TJ mesh plate premium Gold 300B previously used with the upgraded Shuguang "A" Treasure 300B-Z. Non-feedback system single amplifier which adopted as the output tube 300B which occupies the status as a reference pipe of a present-day tube amp. Why doesn’t the Jolida Tube amplifiers have more features? One of the main objectives of Jolida amplifier designs is to maintain the “viability of the volt”, by controlling noise and the maximum bandwidwith of the music signal. The idea of the Grand Tube Review came from my long (20yr+) tube rolling history with the 6DJ8/6922/6N23P/E88CC tube type. Sound wise - very detailed with great sound stage, not very warm, but again with GE's sharpness in treble. Formulated to perform up to 500 hours in your John Deere engine*. The JJ 5751 is a drop-in replacement for any 12AX7 / ECC83 tube. Projects by fanatics, for fanatics!. 6L6/5881 tubes More than 70 years in production 6L6 is the designator for a vacuum tube introduced by Radio Corporation of America in July 1936. 00: 30CW5: 30CW5: Call/Email: 30FL2: 30FL2. The 300B driver interstage-coupled to the 845 output of my Cary 805C monos provided a gorgeously lush midrange and a billowing sense of space that was the sonic equivalent of Mrs. Black Gate Capacitor Fk 63v 2200uf One Pair 2pcs Nos Matched. While still ok for a 300B maybe, I would not consider it for the large transmitting tubes. The equipment supplied by us is qualitatively equivalent to that of our competitors / colleagues but is priced considerably lower. The GZ32 is equivalent to a type 5V4, not a 5U4. 100% guarantee that our tubes will arrive as described and sound great. This KT88 tube is available in factory-matched quartets. Thoughts and Opinions of a tube audio/single driver junkie. This was a selection for higher peak emission. Non-feedback system single amplifier which adopted as the output tube 300B which occupies the status as a reference pipe of a present-day tube amp. 6SL7, like all dual triode tube, has two sections. 75) Posted by Al Noakes on 2014-02-22, 00:48:54 (82. If you want low cost 300B tubes, try the nickel plate Chinese from either AES or Angela. - Hot Rod Magazine. I had previously tested some of these transformers before, in a listening test environment with 5 or 6 experienced tube amp listeners. 100% guarantee that our tubes will arrive as described and sound great. Most tube amplifiers I’ve had were power my 2. Hundreds of users reported Sophia Electric 6SL7 tubes are better than the vintage 6SL7 tubes being replaced, even the best from vintage time. The Kennedy Tube Audio push-pull 300B amplifier. (2)美國Sound Practice雜誌曾指出,2A3音質勝過300B,而45音質又勝過2A3,而且引述,功率輸出越低之直熱三極管,音質越美,因此,有越來越多人喜歡製作小功率後級,直熱小功率三極管配上高效率喇叭,非常吸引人的組合. VIVA TUBES Vintage NOS & Used Vacuum Tubes. I had in mind to build a 300B amp some day and saw something interesting with a 6EM7 as front tube. The TA-274B rectifier tube is our second made-in-Japan audio vacuum tube we developed by maximizing our technologies and knowhow accumulated in the creation of the 300B. Compatible equivalents & substitutes: 6SN7, 6SN7GT, 6SN7GTA, 6SN7GTB, 6SN7WGT, 6SN7W, 5692, CV1988, CV278, 6H8C (Russian), ECC32. Amplifier uses 7N7 loctal base tubes that are equivalents of the 6SN7 medium mu triodes. Consider the Genalex KT88, KT77, KT66 and 300B tubes when looking for premium audio vacuum tubes for use in high end tube audio amplifiers. 6SL7, like all dual triode tube, has two sections. This video was inspired by a question I was asked about swapping KT88's in place of EL34/6CA7's. About 300B tubes: Trafomatic Audio is one of the very few manufacturers who does understand the 300B story. 300B Single Ended Triode vacuum tube stereo amplifier. 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. gec tt-21 (sold) The TT-21 is a KT-88 equivalent except it has a higher plate voltage maximum rating. Remember that all the heater does is warm up the cathode so that it shits out electrons. 00: 30CW5: 30CW5: Call/Email: 30FL2: 30FL2. It should test very strong as that. Billington Export Ltd are one of the largest valve and tube dealers in West Europe, holding approximately 1 million valves stored at two sites totalling 11,000 sq. tube's lifespan and ensure the amplifier is not damaged. I insist the set of tube names that should sound nice to me. Note that the other options 'Include equivalent types', 'Include Vademecum pages' and 'Include short info' make no sense in this case. The Frankenstein II's stock 300B tube is the Shuguang Treasure Black Bottle 300B-Z. This tube gets much closer to what some tube-ophiles refer to as "velvet in a bottle", more so than either the 300B or the 2A3. The benefit the 300B brings to as a voltage regulator is its ability to pass a fair amount of current at low cathode-to-plate voltages, the result of haveing a low Rp. In general, the KT88 tube has a magical mid-range similar to the smaller EL34 tube, but with low and high end extremes that reach much further More Details. As you might have suspected, not all 300B types sound. Especially for the owner of low-efficiency speakers who prefers the 300B tubes because of its fantastic sound performance but that lacks the necessary capacity, the 845 tube is a more than equivalent substitute. I am sending the circuit schematic in attachment because I suppose it will interest you, since it is certainly not common. » Protection and overload system to protect the tubes and the amplifier against tube damage and operating errors » Adjustable BIAS levels to allow the use of different 300 B-tubes: low, medium and high (equivalent to 25mA, 50mA and 70mA quiescent current per 300B) » BIAS meter for controlling the three output tubes. I don't remember exactly what it was that drew me to Kevin Kennedy's pages, but when I read about the push-pull 300B circuit on his amplifier projects page, even without seeing the circuit, I thought "That's it!". PV-8 preamp5965=12av7. 275 Tube Socket. In each case, the waveform is fine. MAGNETRON TUBE 7006 JAN-7006 (MFR Litton Varian) Equivalent L4581 VMX1090. Black Gate Capacitor Fk 63v 2200uf One Pair 2pcs Nos Matched. The thoughts below are all the evolving opinion of one person (me). The amp uses two tubes in parallel, which makes it easy to produce 30 Watts of clean and wonderful single-ended 300B power! The input stage also relies on two paralleled triodes (ECC88), which drive the 300Bs through a step-up transformer. We design and manufacture our tubes, engineered for demanding high fidelity, reliability and overall warmth. 6SL7, like all dual triode tube, has two sections.