300b Tube Equivalent

With 60W of pure Class A push-pull tube power, no output transformer, and zero global feedback, the 211/845 certainly occupies a little-explored corner of high. It uses the DHT 300B as a voltage regulator. If we include the souped-up versions—which, in fact, deviate from the original 1930s Western Electric (WE) specifications—the number of 300Bs to choose from now includes about 15 different brands and types. Browse your favorite brands affordable prices free shipping on many items. Quantity : Two Tubes ( Matched Pair ). com offers 134 300b tubes for sale products. Feel free to send us your hi-fi audio schematics and we will add them here. select the first character of the tube. Heat exchangers are available in straight tube and u-tube designs. outstanding performers and are (by 300B standards) reasonably priced! $163. People who have heard both Tribute and amorphous Tamura OPTs said that they were equal, just with different flavours. I propose an explanation to why tube amplifiers have ``fat sound' that solid state amplifiers lacks. Using other non-300B tubes is risky if you don't modify the operating point (bias) to the correct value. Exemplar linestage. YES, you are correct! This is the exact tube Collins installed in the thousands of 30L-1s they produced for 30 years!. This stock list is out of date. If mounted In a horizontal position, the plane of the filament, which is indicated In Figure 2, should be vertical. The bias controls the current that flows through the tube and defines the quiescent point of the tube, so that the tube reacts immediately to an input signal and so that it amplifies that signal accurately. low-frequency, such as 300B, but can produce a sound that is similar to the 300B, depending on manufacturer of vacuum tube also is a feature of the 2A3. This is not the case with 2a3 and 45-based SETS. Formerly BOI AudioWorks. I had previously tested some of these transformers before, in a listening test environment with 5 or 6 experienced tube amp listeners. 6BQ5’s and the current Russian EL84’s. Welcome to Tubes U S A. Bandwidth of all transformers listed, is within -1db from 24Hz to 25kHz+ and power output is relative to circuitry parameters given, approximately 10 watts at clipping for standard 300B. Its powerful enough to drive the GM70 which if compared to the 845 had like double the filament power , can handle 125Watts plate compared to 100Watts for some 845. From AVGuide: "With EAT 300B tubes in the circuit, the amplifier's performance at the frequency extremes improved pretty drastically…" Built with high-temperature glass, huge carbonized black plates and gold-plated pins, these individually serial numbered, hand-made 300B are the best currently available 300B on the market. The 300B is an unusual single-ended tube amp with 300B power tubes. modified Denon. Huge 6a5 Triode Theater Tube Amplifier Altec Western Electric Era 2a3 Equivalent. Audion Golden Night 300B SCSE Amplifiers EXCLUSIVELY IMPORTED BY TRUE AUDIOPHILE. Our 300B DRD amp is derived from the classic Loften-White design. Copper tube coils and aluminium fins providing increased corrosion resistance. Audio Amplifiers From TV Compactrons For a long time I have considered the idea of making small, high quality amplifiers that could be used with portable radios and CD players. CV181-T (6SN7) – Pair or Single The Psvane T-series black bottle tubes are a further development over the highly sought after Shuguang Treasure Z-series, which was originally first launched by Grant Fidelity in Jan 2009 in North America as Shuguang’s first take on high end vacuum tubes. All our tubes are hand tested before they are shipped out to you. Its open casework allows easy access. Anyone know what is the formula to calculate equivalent diameter of 30 degree equilateral pitch in shell and tube heat exchanger ? I had read Coulson's Chemical Engineering book and Kern's Process. Part 2) KT66 The 7581/A tube is an industrial version of the 6L6GC. 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. It's almost the same height and width as the 2. 1K that feature no less than 70 drivers in their line-array. Music Angel 300B - "The 300 Bucks amp" It is a beauty, isn't it? I mean - 300B tube is a legend. This is not the case with 2a3 and 45-based SETS. Introduced in 1938, the 300B was initially used in the amplification stages of telephony relay. The 300B tube has the bayonet pin so located that it may also be mounted in a Western Electric 100M, 115B or similar socket. 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. This is one extremely cool looking tube. Current output tubes fitted are JJ300B. Audio, NOS, transmitting, industrial & professional tubes from stock. Shop our selection of Sweep tubes, typically used in HAM and RF applications. 300B 4300B Svetlana Russia We can supply sockets (ask for price). In keeping with the tradition of Genalex to provide the highest quality tubes, New Sensor has released the Genalex Gold Lion PX300B audio power triode. Shop a variety of vacuum tubes: preamp, power amp, rectifier tubes. 100% guarantee that our tubes will arrive as described and sound great. Gettering_and_Arcing. Audio Space is the manufacturer and wholesaler of various kinds of Vacuum Tube Amplifier, including Preamplifier, Power Amplifier, Integrated Amplifier, Speakers and Audio Accessories. Just a few. The 20wpc Nighthawk Integrated is Raven Audio’s entry-level amplifier, your taste of tubes on a budget. from Russia Made. Also an excellent tube, though it is quite pricey in comparison to the others here. Also Mundorf Silver Oil capacitors will be taking the place of the Jupiter wax paper caps. The 300B tube has the bayonet pin so located that it may also be mounted in a Western Electric 100M, 115B or similar socket. Sloan Express stocks a wide variety of aftermarket ag parts equivalent to the OEM part for agricultural equipment. Introduced in 1938, the 300B was initially used in the amplification stages of telephony relay. 10J12S you can used in some Hi-Fi applications. Capacity of the power supply also the size of the transformer is also everything is the same as the single amplifier 300B of most,. With the revival of tube electronics for audio, the 6SN7GT became a major player again, due to its availability, and, most likely, due to its inherently good audio qualities. 6922 EHG, equivalent to the popular ECC88, is used as the standard driver tube. It is slightly larger in size than the American tube. 300B Valve. This amplifier was featured on the February 2004 Issue of the "High-Fidelity Audio: Radio Technology" by Mr. However, as my kids get bigger and take up more space, I'm forced to downsize. In most cases the tubes manufactured to the European system have an exact equivalent tube in the American system and vice versa. Vacuum Tube List www. 100% guarantee that our tubes will arrive as described and sound great. Tubes are fragile and subjected to intense cycles of heating and cooling. Warning: Please note that the valves in the amplifier(s) in operation produce heat equivalent to a 40w light bulb, and should not be touched at any cost. While still ok for a 300B maybe, I would not consider it for the large transmitting tubes. Like the original Western Electric 300B, it has the 8 course directly heated filament, 40 watt plate dissipation and classic large shoulder tube glass. Manley Labs has created the TUBESRULE. 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. 4 inches wide, and the anode can dissipate 40 watts. Premium grade tube This tube is a true 6SN7 equivalent and you can use it in place of 6SN. The E88CC tube is equivalent to the 6922 tube. USA Tube Audio continues to serve the Entertainment Industry, Audiophiles and Music Lovers, since 1976. It has probably 10 times more cult status than it deserves. Previous realisations have bias point computed for WE 300B or Sovtek 300B. Difference is you get better flight and more consistency between the shuttles. This is a difficult to make tube, since parameters are combined in this tube that bite each other. Audio Tubes NOS Tubes PrimaLuna Brand Tubes. The three tubes on the right are variants, a 6J5G, a 6J5GT and a metal 6J5. Just as the pupils in your eyes get smaller in bright light, your ears go on the defense when distorted or potentially damaging sounds are present. Stick with the 5U4's please. UTC LS-58 2A3/300B 40 Watt output transformer pair =2. After a Google search I first spotted a Mullard GZ32 that stated it was a 5U4G equivalent. 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. Affordable worldwide shipping. If the vacuum tube meets a set of operational specs in a special tester, it is marked and shipped. In electronics the 300B is a directly-heated power triode vacuum tube with a four-pin base, introduced in 1938 by Western Electric to amplify telephone signals. A tube manual or tube manufacturer's technical data sheets should be consulted first, before mak-. Introduced in 1938, the 300B was initially used in the amplification stages of telephony relay. Loosen hydraulic tube nut (H) slightly. very nice pictures. Emission Labs at tubesusa. The bias controls the current that flows through the tube and defines the quiescent point of the tube, so that the tube reacts immediately to an input signal and so that it amplifies that signal accurately. 6H30n - click on the name gives Photo. The plates are so thick that Yankee tubes. But it gives a very good idea, of the type of stock we usually carry. Consider the Genalex KT88, KT77, KT66 and 300B tubes when looking for premium audio vacuum tubes for use in high end tube audio amplifiers. He was quite excited to tell us that the tube was his creation for the military, the only true frame grid made in China and one of the most difficult tubes he ever put into production at BJ. The Tesla 300B is the same as the JJ Electronics as reviewed here. These are octal based tubes and were released early on, far before the small 9 pin preamp tubes we are familiar with today. The 6SN7 is basically two 6J5 triodes in one glass envelope. Only at eHam. Sloan Express stocks a wide variety of aftermarket ag parts equivalent to the OEM part for agricultural equipment. Eight stout octal-socket tubes, including a pair of colorful voltage regulator 0D3s, light up the top panel of the Neo Classic 300B. Anode voltage is 480V, anode dissipation 40 watts. Designed for ease of maintenance. 300B Single Ended Triode vacuum tube stereo amplifier. Abstract: 6DS4 nuvistor nuvistor 6DS4 tube tube 6ds4 300b tube 300B triode tube 300b ELECTRON CORP resistor 47000 Text: Grounded-Cathode, Neutralized RF-Amplifier Tube in Tuners of VHF Television and FM Receivers Featuring Improved ,. ) will change optimum plate load impedance. Until the JJ EL844 came on the scene in 2011 there really were no substitute tubes for EL84 / 6BQ5 tubes. 3” color touchscreen display Raymote™ remote connectivity - optional 7:1 turndown Fault history with full diagnostics. Surf on in for more information! WE300B tubes are available in Singles or as Matched Pairs, Quads or Octets. Shop a variety of vacuum tubes: preamp, power amp, rectifier tubes. We are using one of them in my Prosonic in V2. The plates are so thick that Yankee tubes. Get the best deals on 300B tube when you shop the largest online selection at eBay. This is always a sticky issue. I then fed the Aikido a 1kHz signal. The problem is they are rare, your talking a 1930's area tube,. Only a few of the most popular tubes are shown. Music Angel 300B - "The 300 Bucks amp" It is a beauty, isn't it? I mean - 300B tube is a legend. I expect to get another 3-4 years out of them without a problem. Anyone working with classic electric guitar equipment or vintage radio receivers can use a few extra vacuum tubes. * For electrical specifications, this 300B lists an anode power dissipation of up to 60 watts and in an appropriately adjusted circuit of single-tube amplification in class A1, is claimed capable of more than 20 watts of output power. So other than the transformer choices and their position, this build will be fairly similar to the previous Get Set Go. Yet it is an amazing tube, but you have to accept the large spread of bias data, and transconductance, which results in different gain of the amplifier stage. Cunningham is naming the tube CX301A. Get Started. The three tubes on the right are variants, a 6J5G, a 6J5GT and a metal 6J5. To get 100w on 8ohm we need: P=V * I and I = V / R => P = V * V / R => V = sqrt (P * R ) = 28Vrms so if we want a sensibility of 0. The intention for this amplifier was to drive classic high-efficiency speaker systems, such as Western Electric WE-594A or WE-755A. The rating scale was 0-10, with minimum 0. It is a long page, use your scroll button and scroll down the page to see it all. Anode voltage is 480V, anode dissipation 40 watts. A full-feature article of this Muzishare X5 integrated tube amp can be read here in our blog! EL34 tube types are loved by many tube fans for the sweetness in sound especially in the vocal region. As you might have suspected, not all 300B types sound. The Frankenstein II's stock 300B tube is the Shuguang Treasure Black Bottle 300B-Z. To match two sections closely enough is hard enough; match two tubes (four sections would be much harder if high standard of matching method is applied). Anyway, they are made to run horizontal or vertically. Carefully rotate hydraulic tube away from filter fitting (J). New & NOS power tubes from Electro-Harmonix, Genalex, JJ & other US made tubes!. Dimensions: Glass, 6-1/2" tall with additional attached base that is 1-1/2" tall and 2-1/2" wide with (4) large contacts. 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. In most cases the tubes manufactured to the European system have an exact equivalent tube in the American system and vice versa. Our current parts offering includes a wide range of over 8000 parts to fit combines, tractors, hay equipment, planters, sprayers, tillage equipment and more. The first electronic amplification of sound was done with Vacuum Tubes. It comprises two filament type diode units with a common filament. Store information Lee's Electronic Components 4131 Fraser Street Vancouver British Columbia V5V4E9 Canada. com offers 134 300b tubes for sale products. It uses the DHT 300B as a voltage regulator. Tube CAD, Se Amp CAD, Audio Gadgets For those of you who still have old computers running Windows XP (32-bit) or any other Windows 32-bit OS, I have setup the download availability of my old old standards: Tube CAD, SE Amp CAD, and Audio Gadgets. OVERVIEW The 300B PSE is an unusual single-ended tube amplifier that I designed in 2002. I googled around and it is not entirely clear to me if all 4 pin base sockets are the same? I saw on the big auction site reference to the 4 pin base socket for the 300B tubes. Amplifier uses 7N7 loctal base tubes that are equivalents of the 6SN7 medium mu triodes. It confirms from the tube curves, they are magnificent. These GE 5965A (clear top, side getter) tubes sound excellent! Recommended in the following fine vacuum tube gear: Conrad Johnson PV8 - Conrad Johnson PV-5. Thanks Gary. Javascript is disabled on your browser. Its powerful enough to drive the GM70 which if compared to the 845 had like double the filament power , can handle 125Watts plate compared to 100Watts for some 845. 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. The bias controls the current that flows through the tube and defines the quiescent point of the tube, so that the tube reacts immediately to an input signal and so that it amplifies that signal accurately. ) will change optimum plate load impedance. New & NOS power tubes from Electro-Harmonix, Genalex, JJ & other US made tubes!. Triode freaks, like myself, find themselves going for lower and lower power, and more detail, delicacy, and transparency. He expects to get a prototype pair sometime in December 2005. ch October 2015 1. That's why I prefer tubes like 6N7 as drivers for small output tubes. After 12 years of its introduction, the HWC-30-8 is still one of the most popular and good sounding Push-Pull output transformers Hashimoto continues to produce. Connect the best quality 22uF/450V (value quite critical, 23. reviews vacuum tubes amplifiers. Equivalents of the 6SN7GT were widely used in the USSR and China, and are still being manufactured there. The 01-A or 01A as we write it is a storage battery triode used as detector or amplifier. com offers 134 300b tubes for sale products. I googled around and it is not entirely clear to me if all 4 pin base sockets are the same? I saw on the big auction site reference to the 4 pin base socket for the 300B tubes. I have used a couple of amps in the video and made cathode current and power output measurements on. " Upgrade default Tubes option" if you are purchasing our amplifier who has by default 2x 6SN7(6N8P/6H8C) tubes and you do not want the default tube and you want upgrade and replace by PSVANE Special customize 6SN7-SE tube , please use this option, the tube will packaged with amplifier to ship together. The power tubes by Genalex/Gold Lion are great as well. I performed a quick experiment: I threw together an Aikido amplifier (nothing like having a stack of PCBs to play with) that used a 12AX7 as the input tube and a 12AU7 as the output tube. The use of dual 6N6P triodes in the power stage, which are connected in parallel in each channel, enables the device to work with many dynamic headphone models. 100% guarantee that our tubes will arrive as described and sound great. Vacuum Tube List www. At the time Philips had already developed and patented power pentode designs, which were fast replacing power triodes due to their greater efficiency. 6CY7 Single-Ended Hi-Fi Stereo Amplifier A Exercise in Reuse. Key types still missing from my collection: Arcturus 150 globe (blue glass) Arcturus 50 (ST-19) Ceco L-50 globe CV2533 Everbest 250 Hytron VT-50. Some tubes, like the 101 and 417A remain literal standards for high quality, low noise tube design. website! We have added a shopping cart for easier ordering and an improved search feature. But, to shake things up completely, designer Kang Su Park uses the much-loved DHT 300B tube, not in the audio chain, but in the power supply chain as a voltage regulator. Having more than 20 years of experience in manufacturing "Hi-End Vacuum Tube Amplifier", Audio Space has established a strong position in the international audio. This tube is the highest quality 300B type available and is considered to be an upgrade in any 300B amplifier. sometime 6B4G Zaerix is very expensive but 6C4C is inexpensive. Tube Testing Equipment Why We Don't Sell Certain Brands Filter by All 12AT7 / ECC81 / 6201 / CV4024 12AU7 / ECC82 / CV4003 / 5814 12AX7 / ECC83 / CV4004 / 5751 6922 / 6DJ8 / 7308 / PCC88 6SL7 / 5691 / CV1985 / 6N9 6SN7 / 5692 / CV1988 / 6N8 Misc. Class A Single Ended Triode operation is the simplest and purist circuit possible. Chinese 300B are cheap and usually are reliable. The 300B has justly won the reputation for being a superb output tube in single-ended amplifiers. Its deep as the internal hell, clear like tuned piano and makes a world of difference to enjoying music. Tubes and Circuits. Genalex PX-300B is one of the best current production 300B. 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. Anyone know what is the formula to calculate equivalent diameter of 30 degree equilateral pitch in shell and tube heat exchanger ? I had read Coulson's Chemical Engineering book and Kern's Process. Get Started. 92CM-11681 2CM-I0524RI 6cw4 tube 6cw4 6cw4, tube NO133 300b tube tube 300b harris E5-65: 6ds4. Tube Substitutions There are a lot of amps that can use different tubes to change or improve their tone for different styles of playing. Pacific Creek SE300I is a stereo single-ended 300B integrated amplifier conservatively rated at 10 Watts per channel. Let's have a look at the plate curves. 00 84 VT84, 6Z4 Just one. The most important influence on changes in the character of the sound has a single driver tube, followed by a pair of power tubes. The 300B has several makers, you can change between these, but if you want to use other output tubes this is not possible. 300A/300B Data sheet (high-res, 4. and most 300B Single Ended. This is a hand-crafted amplifier built with modern construction techniques and reliable printed circuits by people who care about sound and quality. Compatible equivalents & substitutes: 6SN7, 6SN7GT, 6SN7GTA, 6SN7GTB, 6SN7WGT, 6SN7W, 5692, CV1988, CV278, 6H8C (Russian), ECC32. THE BEST Valve / Tube Amplifiers and THE BEST Speakers is the equivalent of High Voltage 1,000,000 micro farad capacitor. WE91A - Specifications. * For electrical specifications, this 300B lists an anode power dissipation of up to 60 watts and in an appropriately adjusted circuit of single-tube amplification in class A1, is claimed capable of more than 20 watts of output power. The 1578 Russian metal based tubes are competetive with the best 6SN7 tubes. 99 Sale price $699. Only a few of the most popular tubes are shown. What follows is a report on the resurrgence of the 300B through "reissues" being produced by several manufacturers. 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. 300B tubes - Emission Labs, approaches the magic of the Sophia without the cost and is very reliable. So other than the transformer choices and their position, this build will be fairly similar to the previous Get Set Go. A KT88 tube that is in a league of it's own. 5Z3P is a Chinese rectifier tube model substituting 5U4G. The 274B tube is designed to supply direct current up to 200 milliamperes from an alternating current source. Skip the INTRO, Go RIGHT to the TUBE CATALOG! Western Electric was one of the earliest commerical tube manufacturers, and made many classic designs that are still very much in demand today, especially in the audio world. It is one of the lowest-distortion tubes ever made, and is a close duplicate of the original Western ElectricTM 300B. Other pages online with tube. Adjusting the driver tube back to ~6. A full-feature article of this Muzishare X5 integrated tube amp can be read here in our blog! EL34 tube types are loved by many tube fans for the sweetness in sound especially in the vocal region. JE Labs SE300B Classic and Deluxe the logical step was to build a SE 300B. This amplifier was featured on the February 2004 Issue of the "High-Fidelity Audio: Radio Technology" by Mr. A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal. A bit flat in tone, voices slightly colored (more so in AudioNote). What we offer here is 'Premium' military grade tube made in 1980's, new old stock (NOS) tubes, selected by us to meet high end needs. I performed a quick experiment: I threw together an Aikido amplifier (nothing like having a stack of PCBs to play with) that used a 12AX7 as the input tube and a 12AU7 as the output tube. 200-400 NEW listings PER WEEK! Bookmark us!. Abstract: 6DS4 nuvistor nuvistor 6DS4 tube tube 6ds4 300b tube 300B triode tube 300b ELECTRON CORP resistor 47000 Text: Grounded-Cathode, Neutralized RF-Amplifier Tube in Tuners of VHF Television and FM Receivers Featuring Improved ,. The largest difference from the transistor amplifier to the EL34 tube amplifier is the bass. Vacuum Tube List www. Also Mundorf Silver Oil capacitors will be taking the place of the Jupiter wax paper caps. Here is a discussion on the Tube DIY Asylum of regulated filament supplies for the 300B. Apparently, this is a fairly fragile tube (electrically speaking). 500B-V3 EML The Emission Labs 300B equivalent with better specs and higher power 359,0 £ 274B EML Emission Labs MESH rectifier dual diode 319,0 £ 5U4G EML Emission Labs MESH rectifier dual diode 349,0 £ 45 EML 225,0 £ 300B EML 250,0 £ 1605 EML 459,0 £ ECC802S JJ New tube. VIVA TUBES Vintage NOS & Used Vacuum Tubes. Tubes are fragile and subjected to intense cycles of heating and cooling. I had no phono preamp and though I looked at several schematics, I just went out and bought a Pro-Ject Phono Box SE (which is an opamp based unit). Tadaatsu Atarashi. Several vendors in China and Taiwan, two in Russia and three in the Czechs and Slovak Republics make 300B's. 2x New Sophia Electric Princess 300B mesh tube for Western 300B 845 amplifier equivalent and our tube of choice in the production of. The most important influence on changes in the character of the sound has a single driver tube, followed by a pair of power tubes. Power supply uses 866A mercury vapor rectifiers. Tube Data Sheet Locator. This tube seems to be far more linear than the type is generally credited for. The 6SN7 packs two triode systems into one bottle, both with the same specs as the 6J5. Each wound string is precision wrapped with round nickel-plated steel onto a high carbon, hexagon-shaped steel core. GE's Daylight T8 LED tubes replace 48-inch T8—1-inch diameter—fluorescent bulbs using the existing fixture and electronic ballast. Engage park brake. How you operate the tubes (ultra-linear, bias, plate voltage, operating points, etc. Buy Shuguang 12AX7-B vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. My guess was that the 300B would require too much voltage swing from the Aikido stage. I had no phono preamp and though I looked at several schematics, I just went out and bought a Pro-Ject Phono Box SE (which is an opamp based unit). Check Out Our New "Interesting Tube Facts" Down Below. With the varieties of different brands and vintage versions of this tube type, tube rolling for this amp is going to be very rewarding and fun. Using a 300B (or Sovtek 6A3) tube the output will be over 10 watts, -1dB 18 Hz to over 20 kHz, less than 1% distortion and only needing 0. we offer a warranty of three years on our RF Parts Brand 3-500z tube. Consider the Genalex KT88, KT77, KT66 and 300B tubes when looking for premium audio vacuum tubes for use in high end tube audio amplifiers. Class A Single Ended Triode operation is the simplest and purist circuit possible. Its open casework allows easy access. The UBT-3 from One Electron is the same size and power (15 watts) as the UBT-1, but has a primary impedance suitable for single or paralleled tubes running at B+ voltages of 300 to 400 volts, such as: 2A3, WE 300B, 50, etc. 4 inches wide, and the anode can dissipate 40 watts. We offer some of the most comprehensive testing facilities available today. No, 300B tubes weren’t designed to pound out heavy metal, rap or techno. The Audio Note sound is not dependent on triode tubes, single-endedness, or silver cabling; but it draws on all of them. Comparing the Triode monoblocks to the Audio Note UK Balanced Kegon monoblocks, my long term reference running on 300B tubes and priced at $95,000 the pair, the Triode seemed made for the enhancement of pop music listening. The 300B tube has the bayonet pin so located that it may also be mounted in a Western Electric 100M, 115B or similar socket. It is meticulously built, handles 40W, and provides very good balance from bottom to top. Affordable worldwide shipping. UTC LS-58 2A3/300B 40 Watt output transformer pair =2. With the revival of tube electronics for audio, the 6SN7GT became a major player again, due to its availability, and, most likely, due to its inherently good audio qualities. Originally, the 12AX7 / ECC83 vacuum tube was introduced to be a superior option for lower noise and microphonics over the 6SL7 tube that was commonly used in the 1940s. Let's have a look at the plate curves. 6BQ5's and the current Russian EL84's. 6SN7 is a dual triode vacuum tube, on an 8 pin octal base. Heat exchangers are available in straight tube and u-tube designs. com offers 134 300b tubes for sale products. Compatible equivalents & substitutes: 6SN7, 6SN7GT, 6SN7GTA, 6SN7GTB, 6SN7WGT, 6SN7W, 5692, CV1988, CV278, 6H8C (Russian), ECC32. Rogue Audio, Audio Research), which would still be cheaper than a Meishu, and would at least be able to drive a Harbeth half-decently. Just curiousI'm using a Mullard GZ30 that replaces the Chinese 5Z4GT on my preamp, and thought it'd be nice to find a Mullard equivalent for the venerable 1951 Sylvania 5U4G rectifier that's used on my 300B amp. Anode voltage is 480V, anode dissipation 40 watts. 2x New Sophia Electric Princess 300B mesh tube for Western 300B 845 amplifier equivalent and our tube of choice in the production of. This KT88 tube is available in factory-matched quartets. EL34 - 6CA7 PSVANE MARK II - Matched Pair. They are great for restoring a vintage shortwave set or cranking out some classic heavy metal tracks. Dimensions: Glass, 6-1/2" tall with additional attached base that is 1-1/2" tall and 2-1/2" wide with (4) large contacts. This is our collection of DIY and Hi-Fi Audio Schematics. Basic 300B construction. In keeping with the tradition of Genalex to provide the highest quality tubes, New Sensor has released the Genalex Gold Lion PX300B audio power triode. The plates are so thick that Yankee tubes. This design is started live as a fairly faithful reproduction of the "Legacy" Amplifier from le mainson de l'Audiophile, designed by Wilhelm Walters and Jean Constine Verdier. Positive Feedback ISSUE 64 november/december 2012. Manley Labs has created the TUBESRULE. Since it’s launch the Edison 60 kit has been a best seller creating a world wide following with all who have purchased it. Valve Equivalents & References valve types, dates, electrode system and characteristics Timeline of Valve History & Recollections eg 1929 Olympia Show : Assignmenthelper. And the life of the of a cathode is dependent on the cathode temperature, the degree of vacuum in the tube, and purity of the materials in the cathode. High end audio version of ECC82. Amplifiers that utilize a 300B tube. Using power tube as driver tube can give 300B a better driving power and incurs some of the characteristic of the driver tube into the amp. Its powerful enough to drive the GM70 which if compared to the 845 had like double the filament power , can handle 125Watts plate compared to 100Watts for some 845. This amplifier was featured on the February 2004 Issue of the "High-Fidelity Audio: Radio Technology" by Mr. Sophia Electric PX4 Mesh Plate Vacuum. The greater efficiency and quality of the 755s showed that the classic JEL 300B circuit could be improved. If you have a working pair of them consider yourself very fortunate. Edison 60 Power amplifier kit. 2 as is a standard 300B. Our best selling 82 type 49,0 £. Tubes can be connected in parallel for greater output, which is popular with triodes, though it is usually better simply to use a larger tube when possible. I have heard the Wright Sound 300B are supposed to be quite good and very afordable. Our amplifiers provide unparalleled accuracy and realism, putting you "in the room" of the original performance. This Website is not just for 4 anything. Steam or hot water flows through the copper heat exchangers tubes to heat water. FOR SALE - Seattle, WA 2 - This amp is less than 1 year old and includes the box and everything that was in it. Our observation: We've compared these to all of the classic European EL84's, U. Store information Lee's Electronic Components 4131 Fraser Street Vancouver British Columbia V5V4E9 Canada. My guess was that the 300B would require too much voltage swing from the Aikido stage. We have an exciting inventory of NOS and Used Vintage vacuum tubes for all forms of radio and television Broadcasting and Receiving applications. Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers in the 1960s and 1970s. Re: 6J1 vacuum tube equivalent replacement by fizi on Wed Mar 25, 2009 8:29 pm hi jemmi. au - best assignment help in Australia Beeboom dudoanxsmb. Much depends on the amp design that the tubes are in, but the 300B tends to be known to have plenty of bottom end and higher power at 8 watts, and the 2A3 is more famous for transparent detail with less power at about 4 watts. Manley Labs has created the TUBESRULE. But it will take some rethinking to imagine this great tube in a non-audio role. The Tesla 300B is the same as the JJ Electronics as reviewed here. This tube is like a Sanken solid state speed demon with the holography of a 300B. Think magic with full control. Exemplar linestage. The power wiring and front switch was also wired up during this step. It uses the DHT 300B as a voltage regulator. The 300B tube has less interaction with the speaker system as smaller tubes like the 45 will have. 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. How to replace T8 Fluorescent Lamps with T8 LED Tubes. To match two sections closely enough is hard enough; match two tubes (four sections would be much harder if high standard of matching method is applied). The 300B is an unusual single-ended tube amp with 300B power tubes. Wholesale & retail trade. ) This leaves the tube lineup of input=6H30 or 5687/7044/7119, driver=45, output=300B or 320B-XLS as the best for the Karna amplifier. Remember that all the heater does is warm up the cathode so that it shits out electrons.