300b Tube Equivalent

In audiophile rings such amplifiers are worshipped like gods, and regarded as the absolute top, of that what is currently offered. This is our collection of DIY and Hi-Fi Audio Schematics. Svetlana 300B Low-Mu Audio Power Triode The Svetlana 300B is a power triode intended for use in class A, AB or B audio amplifiers. They hold their bias perfectly. So far 99% of tube amplifier manufacturers avoid choosing interstage transformer for good reasons, it is the most expensive parts of a whole product, it is very large and heavy when compare to implement another circuit with a few more tubes, and most never be able to succeed making a good interstage transformer by themselves. Fixed bias is used for several reasons, most importantly it eliminates a large value film or electrolytic in the cathode circuit of the 300B, and also allows for fine tuning the output stage operating point for the best sound possible with a given brand and type of 300B. Electron Tube; Audio Tube; Industrial Heating Tube; Transmitting Tube; Medical Tube; Eimac Equivalent Tube; Toshiba Equivalent Tube; EEV Equivalent Tube; Thales Equivalent Tube; Siemens Equivalent Tube; Ceramic Capacitor; Disc/Plate Type; Water-Cooled Type; Tubular Type; Bottle Type; Pot Type; Feed-Through Type; Barrel Type; High Frequency and. I would not hesitate recommending them to any serious tube lover. The 300B tube has less interaction with the speaker system as smaller tubes like the 45 will have. Valve equivalent list. Use of these parameters shall be entirely at the user's own risk. EML tubes are the finest hand-built tubes available! Click on a tube to see the data sheet located in the description. We see 300B often used with medium efficiency loudspeakers. 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,. The VT-300B was designed for those who love the great vintage tone and gentle acoustic color of the old tube amplifiers. Nagra has built special electronic devices to burn-in the 845 and the 300B tubes. Shuguang’s Treasure 300B-Z is beautifully made, with its svelte profile and smoked-glass body contrasting a white ceramic base. Although the noise level is relatively high because of the pentode used as pre-tube, the amp sounds really nice. Several vendors in China and Taiwan, two in Russia and three in the Czechs and Slovak Republics make 300B's. The outstanding characteristic of this amplifier from a technical point of view is the use of a direct coupled circuit - that is, no capacitors or coupling transformers are used between stages. This KT88 tube is available in factory-matched quartets. 465 : Minimum Operating Temperature (°C)-40 : Maximum Operating Temperature (°C) 125 : Media: Gas : Packaging: Tape and Reel|Tube : Pin Count: 14 : Supplier Package: SOIC : Mounting. Dimensions, outline diagrams of the tube and base, and the arrangement of electrode connections to the base terminals are shown in Figures 1 and 2. By the way: if somebody knows a place with “tube trash” I’ll come and help with the digging!. 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!". We can even use it to grade small signal tubes for noise and microphonics, though we still prefer the Kaye Labs. 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. Quick View. Just a few. Edison 60 Power amplifier kit. In each case, the waveform is fine. They hold their bias perfectly. 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. 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. 2 as is a standard 300B. The ultimate 300B tube. Radio tubes are valves. 6463 is a near equivalent. * 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. Power-grid vacuum tubes cover a wide range of applications, and a wide variety of styles have evolved over the years. (Adjust the cathode resistor to give each section anywhere from 16 to 20mA of quiescent current, depending on personal taste, and the sonics of your favorite tube and your favorite operating point. 300B and 2A3), but in some applications can be used. The LL1651 provides also AC filament for the two tube rectifiers and for the two drivers. The 300B has justly won the reputation for being a superb output tube in single-ended amplifiers. Cheap tube hifi, Buy Quality hifi exquis directly from China vacuum tube Suppliers: PSVANE 300B-SEN Vacuum Tube HIFI EXQUIS Special Customize Version Black Plate Gold Pin Equivalent 300B 300BN WE300B Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. This is the ultimate 6L6GC/KT66 type of tube, and probably one of the most sought after WE tubes next to the 300B. 300B Base and vacuum tubes employ medium, four-pin thrust type bases suitable for use in estern Electric 143B or similar sockets. 300B Single Ended Triode vacuum tube stereo amplifier. Onderstaand overzicht is een extract uit de AVO Valve Data Manual edition 19. 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. I have been reading about making your own solid state equivalent to #83 rectifier. We won’t get into which tube sounds best in this article though. Most begin by saying use a 4 pin base socket. While the 300B gives a better lower frequency extension and twice the power, the 2A3 is, to me, a more musical tube. The Zout of these amplifiers with triode output tubes can only be lowered (without. These are octal based tubes and were released early on, far before the small 9 pin preamp tubes we are familiar with today. Connect the best quality 22uF/450V (value quite critical, 23. Regular price $699. 2x30W EL34 tube amplifier. 3) Lifetime of cathodes: The lifetime of a tube is determined by the lifetime of its cathode emission. I've tried OA3, C3 & D3 tubes and various ax7's and au7's. 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. Push-Pull x (2) 300B (20 watts output) 3-Stage Amplification for use with most speakers in the 92dB and higher efficiency range 2-Stage SET Amplification for use with very efficient speakers, typically >100dB or higher 2-Stage Push-Pull Amplification for use with most speakers in the 92dB and higher efficiency range. Thus, the Octave Jubilee 300 B is an absolutely modern and uncompromising implementation of arguably the finest amplification technology in the high-end sector. 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. 5687=7119=E182CC Dual Triode Amperex 7119 E182CC Regardless of the branding (Amperex, Valvo, Siemens, Calvert etc) the Holland made 7119=E182CC (although not a direct substitue but similar to 12BH7 with a 10,000 heater) is a premium quality twin triode. Anode voltage is 480V, anode dissipation 40 watts. im also testing several pairs of 6sn7's but for the 300b tests all the other tubes will remain the same. Kevin is well regarded in the DIY audio community, particularly for his renovations. Need vacuum tubes? Want to build your own amplifier? Have an unhealthy HiFi obsession? We've got you covered. We see 300B often used with medium efficiency loudspeakers. Matched 5%. 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. This tube is like a Sanken solid state speed demon with the holography of a 300B. Back in 1904, British scientist John Ambrose Fleming first showed his device to convert an alternating current signal into direct current. com website for our customers to be able to purchase tshirts and swag or to buy replacement vacuum tubes, fuses, or other parts to maintain their Manley or Langevin audio equipment. Specs are pretty similar but construction wise is night and day! This tube has hefty plates. Are they compatible or do they have different specs and it would make the sound not so good?. Power supply uses 866A mercury vapor rectifiers. I would not hesitate recommending them to any serious tube lover. I tried several driver tubes with wide-ranging results but this beats them all. Regular price $699. China Tube Amplifier manufacturers - wholesale 2019 high quality Tube Amplifier products in best price from certified Chinese Tube wholesalers, China Amplifier manufacturers, suppliers and factory on Made-in-China. In the Virtus-300B amplifier, all equivalents of ECC88 tubes can be successfully used as a driver tubes and 300B equivalents as a power / output stage tube. This type of vacuum tube,. And I mean, that those are fully tube based amplifiers, based on a power triode 300B, or equivalent, working in the output stage, in class A and SET setting, powered by a tube rectifier. Selected tubes for low noise and low microphonics. Before building speakers we need to analyse what kind of sound level we're aiming at, what is the room size - and volume, and what kind of amplifier are we going to use. Most begin by saying use a 4 pin base socket. I got my tubes already! Put them in this morning and just starting to burn them in, one was a touch noisy at first but has now settled down. These awesome amps will deliver terrific tones at lower volumes than higher watt counterparts. The GZ32 is equivalent to a type 5V4, not a 5U4. Add John Deere Low Viscosity HY-GARD ® (JDM J20D) or equivalent oil at fill cap location until oil level reaches mid-level range on the sight glass. 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. Triode freaks, like myself, find themselves going for lower and lower power, and more detail, delicacy, and transparency. The main hum ingress mechanisms relate to valve heater powering, DC power. I am pleased to let you know that after quite a long time and several experiments I found a circuit configuration that suits beautifully your it103 transformer. Excellent Customer Service. Onderstaand overzicht is een extract uit de AVO Valve Data Manual edition 19. Specs are pretty similar but construction wise is night and day! This tube has hefty plates. The 300B output tube employs a directly heated cathode. As Tim mentioned, being privileged as participants, I need to buy the tubes first before I report the event & my preference here. I did not notice drastic changes in sound after the first 15 to 20 hours of run-in. If you have a working pair of them consider yourself very fortunate. Vacuum tubes help create a perfect tone. Fixed bias is used for several reasons, most importantly it eliminates a large value film or electrolytic in the cathode circuit of the 300B, and also allows for fine tuning the output stage operating point for the best sound possible with a given brand and type of 300B. Anode voltage is 480V, anode dissipation 40 watts. pdf (178412 bytes) 301 Osram c 301. For push-pull output use, see our 125 series. The E88CC tube is equivalent to the 6922 tube. All things being equal (which they never are), a 2A3 amp with my high gain preamp takes away the 300B's edge in power. For the ax7's I'm currently running a new prod. The large pins go into the large sockets. Emission Labs produces very special, High Quality, hand-built electron tubes in the Czech Republic. 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. 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. Eight stout octal-socket tubes, including a pair of colorful voltage regulator 0D3s, light up the top panel of the Neo Classic 300B. equivalent to 2A3: The 275A tube is often referred by audiophile asbaby 300B due to its silky sound. The cryo treated tube does things no other tube can do. The EL84 tube has a snarly sound (bright with midrange punch), and is usually found in smaller wattage amplifiers. The Music Reference RM-200 Power Amp The RM-10 is a 6BQ5 / EL84 Amplifier , capable of delivering 35 Watts per side. DID YOU KNOW: We try to make most of our products available for in-home audition through our Cable, Component and High-End Headphone Library. 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. The closest equivalent is the Ecc182, E182CC although the pinout is different,. Anode voltage is 480V, anode dissipation 40 watts. 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. Direct heating cathode, medium power consumption triode is used for class A amplification. 243 Just one. 45 inches) Weight: 20Kg (44 lbs) net per monoblock. 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. Welcome to Tubes U S A. The evolution 3 allows us to test the 211 as a driver tube: in this realization, a 845 will be preferred. die von einer 5687WB Gebrauch. Being sold for less than half of what its equivalent current model, the CA-306, MSRP from Canary Audio (approx. - 15 Khz at full rated power (+/- 1db max. This tube is the highest quality 300B type available and is considered to be an upgrade in any 300B amplifier. select the first character of the tube. 2 as is a standard 300B. Audio Tubes NOS Tubes PrimaLuna Brand Tubes. Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics. Longlife, needs 750 mA glow. The 300B Tube Lives Again! BY HOWARD W. Rectifier Tube TA-274B Takatsuki Electric released the TA-300B in 2010 after the absence of new domestically produced audio vacuum tubes for 35 years. In the v3 spot I like a ~60's Organ relabeled tube (Conn, Baldwin, etc). It was one of Western Electrics early directly heated triodes and used in PP & SE circuits of the 1930's portable high fidelity, theater sound amplifierslike thesilver circa 1935 Western Electric D95508 portable amp. Even tubes that normally would be considered mediocre under normal circumstances, once treated exceed the performance of the more exotic varieties. Anode voltage is 480V, anode dissipation 40 watts. Distortion factor characteristics Without NFB. Triode freaks, like myself, find themselves going for lower and lower power, and more detail, delicacy, and transparency. The GZ32 is equivalent to a type 5V4, not a 5U4. The cryo treated tube does things no other tube can do. Many of these diy Audio Books contain schematics. Shuguang’s Treasure 300B-Z is beautifully made, with its svelte profile and smoked-glass body contrasting a white ceramic base. This is the ultimate 6L6GC/KT66 type of tube, and probably one of the most sought after WE tubes next to the 300B. So, I don't have tube rolling experience on this amp. 5814A=12AU7 Siemens West Germany (very transparent 12AU7 sub, lots of inner detail, airy highs, this tube is very neutral, reference quality) (recommended for DACS and linestages) (also see E82CC Siemens and 12AU7 Siemens) - Unison Research Unico-P 2005 - Einstein preamp - Head-Direct EF1 Hybrid Headphone Amp 2008 TO BUY 5814A Siemens. Park machine safely. This is our collection of DIY and Hi-Fi Audio Schematics. I have a magi preamp that uses sylvanias 6sl7 tubes. How robust or saggy the supplies are comes into play as well. 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. Other equivalent tubes are the 7189 and 7189A, an extended-ratings version of the tube for industrial applications, E84L (7320) long life, professional version with more than 10000 hours expected lifetime, and the directly equivalent 6P14P (Cyrillic: 6П14П) produced in the USSR by the Reflektor plant. They do have different filament current draw specs and other slight differences, so you should always check with the amp manufacturer, dealer, or a tech before subbing these tubes in place of the stock tubes. The measurement of figure 3. P art of the hold up on this entire review has been, well, just as i found a killer tube like the Valve Art, another tube would come along and blow all others away when used as a direct normally electrically run 300B. Varian Hot Filament High Vacuum Detecor Sensor Guaged + Controller Tested. - You can replace the 6sn7 control tubes only with the same type, or with another type, but such that is their direct equivalent. The life expectancy of the 300B's supplied with the SE-1 is about 2,000 - 4,000 hours. This is the latest version of 300B output tube amp from Yaqin. 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. Tube equivalents database. Emission Labs produces very special, High Quality, hand-built electron tubes in the Czech Republic. This is an extensive version of the HPA Master headphone amplifier. First, KR filament is 1. Dimensions. 00: 30AE3: 30AE3, PY88: 3. DID YOU KNOW: We try to make most of our products available for in-home audition through our Cable, Component and High-End Headphone Library. WESTERN ELECTRIC ERA 2A3 EQUIVALENT. Features: Separate transformers for high and low voltage - minimize noises caused by voltage interference inside the amp. It looks like a 6V6 tube (American equivalent to Russian 6n6c) that was used for printing practice, amateurish at that. The original Western Electric 300B was rated for an average life expectancy of 40,000 hours when operated within published specifications. As the only one modern audio vacuum tube which with retro-onion glass shell styling (Acme 300B, 274B, 2a3, etc. It is one of the lowest-distortion tubes ever made, and is a close duplicate of the original Western ElectricTM 300B. 6SL7, like all dual triode tube, has two sections. The JJ 12AT7 is a solid replacement for any 12AT7, ECC81, or 6201 tube. As I said, each tube is brilliant and a testament to Psvane's engineering prowess, but this one has that little extra bit of bite, depth and speed. At the time Philips had already developed and patented power pentode designs, which were fast replacing power triodes due to their greater efficiency. 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. Shuguang’s Treasure 300B-Z is beautifully made, with its svelte profile and smoked-glass body contrasting a white ceramic base. This latest High Performance (HP) version has been tweaked to offer unprecedented silent backgrounds and greater clarity, allowing for subtle details in the music never heard before. (*)These specifications are provided 'as-is', with no warranty of any kind. It confirms from the tube curves, they are magnificent. Run engine a few minutes to warm the transmission oil. Gettering_and_Arcing. We also offer high quality and hard to find parts for DIY tube amplifier projects. Sizes range from 0. A 300B parallel single-ended tube amp Matthias Brennwald, www. The closest equivalent is the Ecc182, E182CC although the pinout is different,. It can also be used to replace 12AX7 tubes in position 1 to reduce gain. Are they compatible or do they have different specs and it would make the sound not so good?. 99 Sale price $699. PV-8 preamp5965=12av7. Introduction 6F5P is a Russian TV deflection triode/pentode combo tube, somewhat like ECL85/6GV8. It is difficult but possible to insert the 300B's wrong and damage the preamp. The driver tube is the Chinese version of the 2C51/WE396A/5670 and is also available as 6N3 (written 6H3 on the tube, as the cyrillic "N" looks a lot like a Latin "H"). Below is our current selection of 6SL7 audio tubes. If you’re unsure on what you’re doing, please refer to a competent technician, or ask where you bought the amplifier. Affordable worldwide shipping. 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. 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. 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. Add John Deere Low Viscosity HY-GARD ® (JDM J20D) or equivalent oil at fill cap location until oil level reaches mid-level range on the sight glass. Dimensions, outline diagrams of the tube and base, and the arrangement of electrode connections to the base terminals are shown in Figures 1 and 2. compared to the ax7. The 300B tube has less interaction with the speaker system as smaller tubes like the 45 will have. No coupling devices (capacitors or transformers) are used to minimize the coloring the sound. So I spared them the shame. 50/matched pairs. The tube list at The Tube Center is very extensive, as is our inventory of Vacuum Tubes, Grid Caps, Sockets, Valves and Capacitors. The cryo treated tube does things no other tube can do. 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. 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. I have a hard time believing the label on the tube. WEB EDITION. It confirms from the tube curves, they are magnificent. 200-400 NEW listings PER WEEK! Bookmark us!. 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. 35mm thickness EI plate and winding with 4N oxygen-free copper wire in conventional paper bobbin. Your query returned too many records. The tubes may be mounted in either a vertical or horizontal position. A few month ago I had long phone conversations with my audiophile friend from New Jersey who wanted to buy a 300B amp for his new field coil speakers. I did not notice drastic changes in sound after the first 15 to 20 hours of run-in. Price is per pair. Other tubes are pair 6SQ7GT or 6C5 triode for front amplification ,pair 6AG7 pentode tubes for driving and one 5U4G(5Z3P)for rectifier. The completed amplifier with separate power supply. 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. Tubes may become loose during transit. To reach this the ER300B has a radically different design. Two 300B king tubes, pure Class A, and single-end integrated amplifier; Tube rectifying and choke filtrations;. 95 for each program. At the time Philips had already developed and patented power pentode designs, which were fast replacing power triodes due to their greater efficiency. Tube VT- 25 or Röhre VT-25 ID16571, Triode, vacuum, UX-Base (4 Pins (2 thick, USA 1924, UX) and Power/Output shown. It is the fascinating legend among the triodes for audio amplifiers and single ended circuits. That's why I prefer tubes like 6N7 as drivers for small output tubes. OVERVIEW The 300B PSE is an unusual single-ended tube amplifier that I designed in 2002. As Tim mentioned, being privileged as participants, I need to buy the tubes first before I report the event & my preference here. Other equivalent tubes are the 7189 and 7189A, an extended-ratings version of the tube for industrial applications, E84L (7320) long life, professional version with more than 10000 hours expected lifetime, and the directly equivalent 6P14P (Cyrillic: 6П14П) produced in the USSR by the Reflektor plant. 300B 4300B Svetlana Russia We can supply sockets (ask for price). Note: A separate power source (not shown) is required to heat the cathode. Chinese 300B are cheap and usually are reliable. The 300B filaments are powered on DC voltage provided by a Antek 100VA/ 2x9V, raw dc supply and superb Coleman regulators. 00: 30A5: 30A5, HL94: 9. But it will take some rethinking to imagine this great tube in a non-audio role. 01968 to 10. This type of vacuum tube,. Tube appointment: Factory matched quad Gold Electro Harmonix 300B Russian power tubes; fully and individually biased when new and at about 60 hours. The 300B is an unusual single-ended tube amp with 300B power tubes. 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. com website for our customers to be able to purchase tshirts and swag or to buy replacement vacuum tubes, fuses, or other parts to maintain their Manley or Langevin audio equipment. 110A (o r equivalent); the third is the famous 300B. We are using one of them in my Prosonic in V2. Still, Jean Hiraga declared the 300B to be "the tube of the century" and in my view rightly so. While the 300B gives a better lower frequency extension and twice the power, the 2A3 is, to me, a more musical tube. The tubes are precision manufactured in a factory (a portion of the old Tesla tube factory) in Prague, Czech Republic which cranks out the parts and materials, and then final assembly and listening sessions with reference source materials take place in Switzerland. equivalent tubes to experiment with at my asking price Unit was sent to the Manley service center in AZ Paul Fargo very helpful last July to replace a burned out LED and it was cleaned and retested to specification so it. 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. that come with them with NOS equivalents. Jorge Silva Marques - Belgium Transformer Coupled Cathode Follower Driver Stage 6DRT - 300B SE. It is convenient if you look for a vacuum tube in reference mode (Ctrl key +F key). While the 6SL7 might work in some circuits designed for the 6SN7 and provide a bit higher gain, it really is a different animal and should only be used in circuits which are designed for it. They do have different filament current draw specs and other slight differences, so you should always check with the amp manufacturer, dealer, or a tech before subbing these tubes in place of the stock tubes. 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. 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. Searches are limited to a maximum of 200 records. 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. The E88CC tube is equivalent to the 6922 tube. Changing Transmission Oil, Oil Filter and Suction Screen 1. The 300B tube has less interaction with the speaker system as smaller tubes like the 45 will have. · Remove oil fill cap (B). PSVANE WE Series tube WE-300B hifi Audio a pair vacuum tube 100% Brand New The price is for 1 pair, if you buy 2pair(4pcs), we will send the Factory full matched tubes to you. 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. Your query returned too many records. Still, Jean Hiraga declared the 300B to be "the tube of the century" and in my view rightly so. For push-pull output use, see our 125 series. Same pinout as 6DJ8, ECC88, 6922. 300B Single Ended Triode vacuum tube stereo amplifier. Novices to the valve amp scene may not be aware that all tubes were not created equal, and that the 300B triode power tube had a legendary reputation that seemed way beyond the potential of an audio component. 3V on the ground. 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. 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. Still, Jean Hiraga declared the 300B to be "the tube of the century" and in my view rightly so. If you want low cost 300B tubes, try the nickel plate Chinese from either AES or Angela. P art of the hold up on this entire review has been, well, just as i found a killer tube like the Valve Art, another tube would come along and blow all others away when used as a direct normally electrically run 300B. Our best selling 82 type 49,0 £. Vacuum Tube List www. 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. In the latter case, the amplifier's user can adjust the negative grid voltage so that the anode current specified by the amp's designer is met—unless, of course, the tube under consideration appears to be out of the amp's range of bias adjustment. If it causes even as much as a 10% decrease in 300B life then that would really eliminate the cost savings over 6F8G/6SN7 equivalents. Wanted to buy different brands of the 201A series tubes for display. 100% guarantee that our tubes will arrive as described and sound great. 300A/300B Data sheet (high-res, 4. The chemistry of interest is that which takes place during the pyrolysis and oxidation of hydrocarbon fuels. The EML 320B-XLS is a version of the 300B-XLS with higher peak emission. Sophia Electric Tubes. When I use 300B, I want the 300B sound, not any other substitution, otherwise I may as well use other models tube which can be cheaper too (all new 300Bs are more expensive when compares with modern 2a3, KT66 and etc). 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. We have replaced the Full Music TJ mesh plate premium Gold 300B previously used with the upgraded Shuguang "A" Treasure 300B-Z. It is meticulously built, handles 40W, and provides very good balance from bottom to top. It is a dependable, high mu double triode with reduced gain and clearer, more articulated tone than a higher gain ECC83. Features: Separate transformers for high and low voltage - minimize noises caused by voltage interference inside the amp. ibSupply is here for you with AbilityOne and other quality products. Dimensions. Powered by Create your own unique website with customizable templates. 00 300B 4300B JJ Slovakia We can supply sockets (ask for price). Icon audio are different in that some of the more dodgy components are different. The best small tube amps will give you pushed tube tones at reasonable volumes. Free shipping on all products in the USA. Looking at each part of example 6, the answers vary, depending on the nonzero whole number chosen. Remember that working in tube amplfiers can be VERY DANGEROUS due to high voltages involved, EVEN WITH THE AMP UNPLUGGED from the wall outlet. I have been reading about making your own solid state equivalent to #83 rectifier. equivalent to 2A3: The 275A tube is often referred by audiophile asbaby 300B due to its silky sound. 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. IspraNet Audio: Direct Coupled Single Ended Amplifier The Loftin-White Circuit. Store information Lee's Electronic Components 4131 Fraser Street Vancouver British Columbia V5V4E9 Canada. Dubstep Girl's Massive 5AR4/5R4/5U4G Rectifier Review/Comparison! (Rectifer Tube Rolling thread) Discussion in ' Headphone Amps (full-size) ' started by dubstep girl , Dec 10, 2013. It can also be used to replace 12AX7 tubes in position 1 to reduce gain. Tube Data Sheet Locator. It proves that SV811-3 has excellent linearity and a low distortion tube equivalent to 300B. Valve equivalent list. Although the 6S-- series tubes are often metal cased, the 6SN7 is generally found only in a glass GT size envelope. Vacuum Tube List www. - select all suit sockets. Last October he visited my office in Hong Kong and I showed him a 6N11 military tube that is known locally to be an excellent sounding equivalent to a 6922. The amplifier uses two 300B tubes in parallel, which yields 30W of clean and wonderful single-ended 300B power! The input stage also relies on two. 8uF is theoretical ideal) capacitor you can locate between the 300B Cathode and the top of the Output transformer and connect a resistor equivalent to 1/4 of the DCR of the Output Transformer but at least 47R between the +B capacitor and top of the output transformer. Dimensions, outline diagrams of the tube and base, and the arrangement of electrode connections to the base terminals are shown in Figures 1 and 2. Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics. WEB EDITION. In addition to the shatterproof. Like all JJ tubes, it has a rugged construction that doesn’t compromise the sound of your amp. These instructions don't follow every possibility with every model, but if you run through this one you will get the general idea. The 6SN7 and it's equivalents were once the most popular tube. It is meticulously built, handles 40W, and provides very good balance from bottom to top. I have been reading about making your own solid state equivalent to #83 rectifier. [Note orders are picked and shipped on weekends. The last similar performance experience I had was when an Audionote Japan amplifier was trialed in my system. We use it more for certain power tubes that we cannot accurately test with any other tube tester; such as triodes like 845 and 300B tubes. ibSupply is here for you with AbilityOne and other quality products. 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. We are here to help you find the best ones with our tube amplifier reviews and advice. It confirms from the tube curves, they are magnificent. Matched pairs (tested for similar electrical properties) usually available for an extra fee. 5965A is a special quality version (10,000 hour) 12AV7. I have a hard time believing the label on the tube. All about Tung-Sol Vacuum Tubes. modified Denon. We offer some of the most comprehensive testing facilities available today. The 300B output tube employs a directly heated cathode. Tube rolling with the VTA180M is effortless.