There are no interstage coupling capacitors in 300B SE. The input sensitivity is around 2V which is ideal for a power amplifier and ideal when mating with Audio Note's M3 Line pre-amplifiers. Parallel Single Ended. ) Insulated flexible leads 8" min. Class A, AB etc. TheSvetlana 300B uses ultra-pure carbonized nickel plate material and a proprietary oxide coating on the filament to give Western Electric-like performance. Most of our OPTs can be configured for different primary and secondary impedances. Potted in metal black round box We manufacture Power transformers for tube amplifiers, HI-FI / HI-END and professional (guitar amps, - Fender, Marshall-Vox ) custom made, hi quality. The wattage output in an amplifier may vary from application to application due to many variables such as tube types, solid state vs. Flanking the two sets of tubes on the left and right are the two 300B output tubes. No compromise has been made during components choice: the 845 output triode is one of the best tube available today in that range of power for single-ended applications, the driver stage uses a 300B, a long revered audio tube (note that you must use a WE 300B or a Sovtek 300B). This amplifier uses a 6SH7's in Triode mode for the input/driver. Parallel Push Pull / UL. Power: 2 x 55 Watt Tubes: 4 x 845 special - 2 x ECC802 - 2 x 6SN7 Inputs XLR: 1 Line + 1 Direct Inputs RCA: 3 Line + 1 Direct Output transformer: MastersounD in litz Load impedance: 4 – 8 Ohm. The Interstage transformer drives the Triode 300B in single ended mode. 8W x 2 single-ended integrated amplifier with Super rectifier. For general purpose or replacement use in single ended tube output circuits see our 125SE series. Enclosure Type. If you're interested in making your own amplifiers and have never worked with high voltage before, be sure to follow correct safety procedures. Original 300B tubes (and chimneys) included as well The A6000 is made to run 300B-XLS tubes at their optimum specification. They are usually used for relatively small amplifiers, e. Ideally matched with our range of Electron cables. 00 Indramat Dkr Drive Dkr02. 53 per month for 30 months. Lead time required. Today, Hashimoto products are regarded as one of the premier tube amp transformers among Japanese hi-fi enthusiasts and columnists who originally introduced the sound of single-ended amplifiers in the world. Output-Single Ended-Ultra Linear. Parallel Single Ended 10 Watt – Class A. Everything is closer together then I really liked, but I tried my best to somehow put all. NEW FLAGSHIP 30W OUTPUT TRANSFORMERS DESIGN BETWEEN TRIODE LAB X HASHIMOTO - Newly developed for Parallel 2A3/300B. HASHIMOTO (Sansui) 20W Classic SE OUTPUT TRANSFORMERS - on 45-PDSM FFX, Same pair used on the 45M-II FFX. And adopts 6N8P tube as preamp, two pieces 6P1 tubes in parallel per each channel as power. I have heard some great sounding single ended triode amps but anything that I could afford to build did not have enough power for my speakers and my musical tastes. The output tubes used are the Svetlana 300B. Both output tubes operate in pure class "A1" single ended self-biased isolated circuitry while the two plates are tied together to drive the output transformer. With 30 watts per channel and the lush midrange of the 300B tubes, these amplifiers will make your speakers ooze musicality. Golden Dream 300b Self cancelling Parallel Single ended Mono-block Hard wired. Excellent operational and cosmetic condition. The major difference between these two is that in SE OPTs the quiescent current of the power triode is not compensated in the transformer core, while in push-pull transformers the quiescent currents of the two push-pull power tubes cancel each other out in the core of the OPT. Re: Sizing the output transformer for a single ended tube power amp design « Reply #9 on: July 22, 2012, 10:42:00 PM » > a power transformer of the same power rating tells you how big and heavy you need an output transformer to be. These things are huge! the pictures do not show you the scale well, the interstage are as big as most 300b outputs. D fully coupled output transformer: Raphaelite has accumulated many years of experience in transformer design and production, and in 2014 introduced an output transformer with extremely complicated structure and manufacturing process. Parallel Push Pull / UL Parallel Single Ended. if would like to get 45 single ended Amplifier not include 45 valves because 45 are almost NOS so can not get in Japan. See 300B Single-Ended (SE) Tube Amplifier Schematic (6SN7 input). 5K Amorphous Single-ended Output Transformer for 6P6P KT66 2A3 tube amp. This amplifier is hand built and point to point hard wired using solid silver 5 *9's in some of the audio path. Select picture or schematic to display from thumbnails on the right and click for download. Each amplifier uses a pair of 300B tubes, and switchable for either Class A Parallel Single Ended for 16 watts, or Class A 25 watts Push-Pull, with a flick of a switch, located on the top front of the amplifier. If you’re still in two minds about tube output transformer and are thinking about choosing a similar product, AliExpress is a great place to compare prices and sellers. many 300B SE does’t. Constructed as two mono single ended triode amplifiers built into one heavy duty chassis. Where I don't want to slog through in a half-understood language, I use Google's translation page. However, IMO the basic topology is good. A reasonable budget build using Edcor CXSE-series output transformers starts at about $1100, not including the chassis. Parallel single ended with 300B triode tubes, 6sn7 and ECC83. The Model 302 Mono Amplifier features a pair of power output tubes, either 300B or type 50, transformer coupled in parallel. • Parallel single ended in “Class A” • Power: 2 x 30 watt • Tubes: 2 x ECC802 - 4 x KT88 • Inputs: 4 line • Output transformer: Mastersound • Negative feedback: 0 dB • Dimensions: 43 x 33 x 20 cm • Weight: 24 Kg • Single ended in “Class A” • Power: 2 x 15 watt • Tubes: 2 x ECC802 - 2 x 6SN7- 2 x 300 B. Pure copper chassis available. It's much less of a concern for push-pull because it's normally balanced or can be adjusted to be. so enough to use instead of ISO Tango Transformer. In SINGLE-ENDED mode the amplifier uses both 300Bs in parallel. twice of power of 2A3 SE. With just three tubes and avoiding the almost ubiquitous small driver tube by favoring a full-swing 20A instead—proving fearless of higher gain and voltages—the Colotube mono's sounded liberated from the tubular confinement often praised as tube sound. The use of a single tube in the output stage of the power amplifier is commonly referred to as a “single-ended” design. 5K 25W Encapsulate output transformer 300B, EL34, KT88 single-ended | Add to watch list. Approx cost $27 (JUNE 2011). Triple is like the name mentions based on a triple Parallel single ended configuration of 300B's, the circuit is simple and uses standard design principles, nothing exotic and is well measured, with the Boully 88 I learned to my own surprise that measurements help fasten the optimising procedure and that indeed good measurements often are. High performance single ended output transformers with high grade M6 laminated core. This is a Kegger design, with adjustable feedback. Susumu Soya and published on Japanese Audio Magazine MJ 2018 August issue. It does require a fairly efficient speaker and is a little bass-shy by nature on less efficient speakers. Opera's website is one of the most Hype-free I've come across, anyone looking for a philosophy course should go elsewhere. 7S output transformers for single ended 300B amplifiers. 1PC 120W 6P1 6P14 6P6P 6P3P EL34 KT66 KT88 Single End Tube Amp Power Transformer. The zero-feedback circuit incorporates an. This transformer is rated at 30W and has a nominal primary impedance of 1. Parallel Push Pull / UL Parallel Single Ended. ) The 300B SE tested in the 300B PSE chassie. Triple is like the name mentions based on a triple Parallel single ended configuration of 300B's, the circuit is simple and uses standard design principles, nothing exotic and is well measured, with the Boully 88 I learned to my own surprise that measurements help fasten the optimising procedure and that indeed good measurements often are. Add to Favorites Seller Join newsletter Payment Shipping Return Policy About Us Contact Us View All Categories Nobsound®——Douk Audio Germany Warehouse USA Warehouse UK Warehouse HiFi Art-Elfidelity Hi-Fi Tube Amplifier Famous Brand Amplifier Integrated Amplifier Digital Amplifier Phono Pre. Power: 2 x 55 Watt Tubes: 4 x 845 special - 2 x ECC802 - 2 x 6SN7 Inputs XLR: 1 Line + 1 Direct Inputs RCA: 3 Line + 1 Direct Output transformer: MastersounD in litz Load impedance: 4 – 8 Ohm. All Tube Drive, Output Transformer Coupled. I have only used cheaper Shuguang 300B's in the PP because 4 300B's becomes expensive. A truly unique design switchable from parallel single ended to push/pull. However, many tube audio builders believe that a pure and more listenable sound Is generated by single-ended triode with out feedback circuitry. The Cyber300B is a very well thought out 300B single ended monoblock power amplifier. The Decware Zen Triode Amplifier is a single-ended-triode design using Russian 6P15P-EV or EL84 output tubes. Stereo Single-Ended Tube Amplifier JJ 322. With 30 watts per channel and the lush midrange of the 300B tubes, these amplifiers will make your speakers ooze musicality. Tube Rectification. 5K Output Transformer EL84 6BQ5 6V6 Single Ended Tube Headphone Amplifier. The amp is dead silent thanks to the low ripple B+ and DC heaters for the 6SH7’s and 300B’s. ARGENTO 16 watt parallel single ended stereo amplifier. Audion Sterling KT88 Anniversary Parallel SE Mono Blocks. However, IMO the basic topology is good. Separate power transformers, chokes and filters provide total isolation between the input and output stage which makes this a pure power source and. and the last of which runs through an EL34 pentode tube. Single-ended output transformer For Tube Amplifier KT88 300B 2A3 25W 3. If you're interested in making your own amplifiers and have never worked with high voltage before, be sure to follow correct safety procedures. Excellent operational and cosmetic condition. 2 mm R36 C-core, 4 x NOS 2A3, 2 x NOS 5692, 2 x NOS 5U4G. This was the genesis of a new preamp. HX-3008PG is an OPT for single ended amplification. This 300B circuits aims for practically lowest noise, and lowest distortion, yet not overstressing the 300B Triodes. The output stage may be configured for either a 300B tube or 2A3 tube using cathode bias. Almost all other 300B amplifiers are under, and distortion, driven. 5K 25W Encapsulate output transformer 300B, EL34, KT88 single-ended Raphaelite 3. A vacuum tube power amplifier with a user-operable switch and a single output transformer which selectively provides push-pull or single ended configurations for driving a loudspeaker. He has one plan for build up 300B SET around a half years ago. Lab 300B SE includes amplifier as well as power supply). Frequency response at least 20 Hz. Golden Dream 300 B H/W ( parallel single ended ) (kod-AUD0038) Based on a platform of the Golden Night, the Golden Dream is a self cancelling Parallel single-ended design, utilising two 300B tubes in parallel configuration per mono-block to produce 20 Wpc into 4 & 8 ohm. Jual 5K-3K75-2K5 Single-ended Output Transformer for 300B 2A3 EL34 EL84 6V6 ,Transformer dengan harga Rp 600. Pushed by the well-known low-distortion, low-impedance pusher tube 5687, the output power is double that of the single-ended single-ended method. Was going to build a Parallel 300B amplifier but never got around to it. The amps deliver 18 watts into 8 ohms from a 300B. Save 300b output transformer to get e Bartolucci single ended output transformers for 300B, 2A3 tube amplifier Raphaelite 7K Driver transformer for parallel. I also used these with the 6CB5a. Parallel Single-Ended 300B output Transformers - TRANS-305 Group C, bifilar wound double C-core output transformer with 1K25 primary impedance and 4 & 8 Ohm secondaries for 300B or 2A3 in parallel single-ended operation, 180mA standing current, 50 watt, , Size 115 mm x 102 mm x 136 mm, mounting holes centre to centre 87 mm to 84 mm both sides. The zero-feedback circuit incorporates an. it I am still working to give you more information. The Evo 300B improves on the 15 watts provided by the Compact 300B, resulting in 24 watts per channel. Output Transformer Tube Amplifier Audio Single-Ended Z11 Oxygen-Free Copper OUTPUT TRANSFORMER 22W 6600 CT Tube Valve DIY EL84 audio fender OT PP 6k6 ohms Single Ended 4,5k audio output transformer for EL11 Used ADC Audio Development Company 114D Line Bridging Output Audio Transformer Sachsenwerk GR 4017 6k audio output transformer for Olympia 573W. Now imagine two output tubes, both running in true Class A. The 91E embodies a new proprietary Class A2 parallel feed current source topology (patent pending), combined with toroidal output transformers, and microprocessor controlled automatic bias. Heavy amps, about 28 pounds each. b = max flux density, somewhere between 10kG (well designed, low distortion hifi output transformers) and 17kG (power transformers); 14kG is a good start for guitar amps A = area of the stacked tongue, square inches. The four similarly sized transformers in front of them are X2. Here a 5842 (or 417A) low impedance, high transconductance, medium mu single triode is used with a 1:1 ratio interstage driver transformer to power the grid of a fixed bias 300B. The Decware Zen Triode Amplifier is a single-ended-triode design using Russian 6P15P-EV or EL84 output tubes. Single ended parallel EL84 tube amplifier ( SAME AS THE 807 ) AND EDCOR OUTPUT TRANSFORMERS (FINAL VID) Product Review Gemtune GP-01 300B Single Ended Class A Integrated Amplifier. See 300B Single-Ended (SE) Tube Amplifier Schematic (6SN7 input). Output Power: 8W (Triode – Class A SE) Output Impedance: 4, 8 Ω: Input: Single-ended RCA (Line / Direct) Vacuum Tubes: 1 x 6N9P (6SL7 or ECC35) 1 x 6N8P (6SN7 or ECC32) 1 x 300B: Dimensions (DxWxH) 470mm x 180mm x 195mm: Weight: N. There are only one capacitor and two resistors in the signal path of this amplifier. Fitted with 300b valves. Blue (Plate) Red (B+) Black (0) Green (4) White (16) PRI SEC Blue/Yell (Screen) Yellow (8) Transformer Schematic Single Ended Audiophile - Tube Output (1627-1642 Series) Tu be Audi o Notes: - The 1642SE and 1638SEA do not include a primary screen tap (as they are designed for triode applications. The circuit employed in the KB has only two stages of gain. All that is required is a couple of resistor changes. Ultra big size transformers are used for both Output and Power supply. cheaper per watt to produce than single-ended designs. Decidedly retro, the 300B harkens to a bygone era that focused on the simplicity of design. Single Ended Output Transformers for Power Amplifiers. And adopts 6N8P tube as preamp, two pieces 6P1 tubes in parallel per each channel as power. In SINGLE-ENDED mode the amplifier uses both 300Bs in parallel. These Sophia Electric Model 91-01 300B mono amplifiers make you want to jump up out of your listening seat and dance naked before the musical gods, and I can promise you that it will effect your wife, mistress, girlfriend, boyfriend, or significant other in the same way, which means your life is about to become a lot more interesting. This single-ended aggregation was coined simply 300B SE. Call or Email to check feasability. Model JD 300B. For single-ended audio transformer, a gap is provided by cutting the core. html----- Although I have hundreds of power and output transformers and chokes in my stocks, most are widely. The use of G-NFB in a transformer coupled design is critically dependant on transformer specification. Single 300B Amplifiers. Well, I finally put together two AZ50 rectifiers, two 300B and two C3g tubes on the top of the 19"/2HE rack , together with PT (grey box). This amplifier has interesting feedback from secondary 16 ohm tap to SG on 6SJ7GT. tube rectifications, etc. ECC-85 driver. stands for Parallel Single-Ended and 2 means Mark 2, offers more power in an integrated amplifier from the Mastersound Compact 300B, for those who need it. FOR SALE A Pair of New Push-Pull Tube Output Transformers HW-40-5 (40W, 5K Ohms) from Hashimoto Electric Co. A-305 (per order basis)-- High DC current (up to 40mA DC) 5K 1:1 Internstage transformer optimized for Single-Ended Operation (can not be used for push-pull) H-20-600(per order basis) -- 20W class Single-Ended Output Transformer with 600 Ohms primary for Russian 6C33C tube. It is the output transformer choice for Sophia Electric 91-01 mono-block amplifiers. if would like to get 45 single ended Amplifier not include 45 valves because 45 are almost NOS so can not get in Japan. The entire circuit, from the power supply to the output stage is 100% hardwired. The 300B PSE is an unusual single-ended tube amplifier that I designed in 2002. A considerable number of amateurs have built the device, rated at 20 watts output. The AC signal is coupled to the 300B grids via 2 metalized high voltage, high capacitance Teflon signal capacitors with self healing ability. The dynamic is exceptional (and this is much more important than power). However, a single 300B provides truly appropriate power and voltage swing for headphones and makes a remarkable line driver. Today, Hashimoto products are regarded as one of the premier tube amp transformers among Japanese hi-fi enthusiasts and columnists who originally introduced the sound of single-ended amplifiers in the world. Like all of Mastersound's amplifiers, this is a single-ended design. Western Electric 300b Single-ended Tube Power Amplifiers Master 91 310a 274a 5z3 Buy Now. ) Insulated flexible leads 8" min. The circuit employed in the KB has only two stages of gain. Parallel single ended Mono-block Hard wired Audion Silver Night Anniversary Parallel single ended 300B mono-block is our intermediate level power amplifier, using the well known 300B tubes. We threw everything we have into this one. They are usually used for relatively small amplifiers, e. SETs are extremely simple and have low parts count. However, after reading several threads on diyaudio. Manufacturing of single-ended output transformers under the individual technical specification is possible. This is the kit that everyone has been asking for, a higher powered SE amp using technology similar to our popular 2. TRANSFORMER USAGE. The 300B version of Siegfried uses an effective turns ratio of 30:1, as this tube is designed for much lower voltage operation than the SV 811-10. The use of a single tube in the output stage of the power amplifier is commonly referred to as a “single-ended” design. AIQIN is one of China's best selling tube amplifier brand and the 300B version is known for its sound quality and reliability. Lead time required. 5K Amorphous Single-ended Output Transformer for 6P6P KT66 2A3 tube amp. DIAVOLO 300b single end Triode amplifier. Through the use of innovative, internationally patented winding technology, we have achieved exceptional electrical parameters, such as flat frequency bandwidth in acoustic range, very low THD distortion and high quaity factor. One important aspect of driving speaker with authority from a 300b tube based amplifier is the power supply. Today, the Series 300 Mono Amps are all built around his original design in a variety of configurations, all based on the 300B power tube, which was his favorite. So essentially, you’re listening to the 300B tubes. Many of you may not know about these different brands and designs of single-ended output transformers, and many of you may not have the technical interest in the test procedure, so here is my suggestion: think of these output transformers as different baseball teams. Tube Amplifier. Well, I finally put together two AZ50 rectifiers, two 300B and two C3g tubes on the top of the 19"/2HE rack , together with PT (grey box). • Parallel single ended in “Class A” • Power: 2 x 30 watt • Tubes: 2 x ECC802 - 4 x KT88 • Inputs: 4 line • Output transformer: Mastersound • Negative feedback: 0 dB • Dimensions: 43 x 33 x 20 cm • Weight: 24 Kg • Single ended in “Class A” • Power: 2 x 15 watt • Tubes: 2 x ECC802 - 2 x 6SN7- 2 x 300 B. Even better, if you change some Component Values, use different Sockets and some additional Components; you can convert the Edison 60 to use the fabled 300B Valves, Push-Pull or Single-Ended. apartment so good enough to use 2A3 SE with Tango XE-20S Transformer. Back to the circuit - The Interstage transformer drives the Triode 300B in single ended mode. Combined with our unique output transformer Mastersound , the 300 B triodes working in Parallel Single Ended mode, the amplifier renders a genuinely engaging sound. Parallel Single Ended Dual Mono Class: “A” Special edition for the 20 years of the Evolution 845 project. The single ended output stage has been with us since the beginning of the vacuum tube era. Lab 300B SE includes amplifier as well as power supply). 5U Cocoliso 300B Single Ended Amplifier on Dec 2016 price is 356,000 YEN on 2017 include Shipping by SAL. It will achieve in excess of twenty watts per channel — a never before realized level of performance for the 300B in a single-ended circuit. Shop with confidence. if would like to get 45 single ended Amplifier not include 45 valves because 45 are almost NOS so can not get in Japan. I spoke to a designer who tried to implement the parallel approach and he could not solve the problem of one tube in a pair "hogging" and putting out most of the output. Pure copper chassis available. This 300B single-ended output transformer uses British amorphous high-grade C-type iron core that has a unique advantage, especially when he static operating point is 80ma or below , it can give full play to the advantages of the output transformer. Push Pull / UL. The 300B Monoblock Plus is a significant upgrade from the original 300B Monoblock. There's hum control pots on the top plate located next to each 300B. The product packaging is made by Kitamura Kiden Co. The PSE300B features a Pure Class A parallel single ended output stage which is the purest and one of the most sought after circuit topologies available. 1-w300b-be79-01-fw Buy Now. Initial Criteria: The principle of operation for the cathode-biased single-ended output stage is somewhat simpler to understand than that of the push-pull amplifier, as a SE stage is similar to a typical pentode stage used in preamplifiers. Single Ended. Hi all, I have seen this question here before, but have never seen it answered. Using two EL86s as output valves to feed an 800Ω load, 10 Watts output with a total harmonic distortion of 0. In 1977 I designed and published in Audio Magazine a single-ended Class A amplifier using bipolar followers biased by a constant current source. No global feedback around the transformer, instead I decided to experiment with plate-to-plate feedback. NEW FLAGSHIP 30W OUTPUT TRANSFORMERS DESIGN BETWEEN TRIODE LAB X HASHIMOTO - Newly developed for Parallel 2A3/300B. Output transformers These are litz wound, and have two output impedances, 4 and 8 Ohms. Triple is like the name mentions based on a triple Parallel single ended configuration of 300B's, the circuit is simple and uses standard design principles, nothing exotic and is well measured, with the Boully 88 I learned to my own surprise that measurements help fasten the optimising procedure and that indeed good measurements often are. 300 Series High Voltage plate & Filament. pages (png!) Data change etc. A truly unique design switchable from parallel single ended to push/pull. Perfect audio dual mono 15Watt integrated amplifier by Peter 2013. Class A Single Ended Triode operation is the simplest and purist circuit possible. Parallel Push Pull / UL Open Type. many 300B SE does’t. It's much less of a concern for push-pull because it's normally balanced or can be adjusted to be. Possibilities include: Single-Ended x (1) 300B (8 watts output) Single-Ended Parallel x (2) 300B's (20 watts output) Push-Pull x (2) 300B's (20 watts output). Finance example. 4 GA Special www. 300B triode. The major difference between these two is that in SE OPTs the quiescent current of the power triode is not compensated in the transformer core, while in push-pull transformers the quiescent currents of the two push-pull power tubes cancel each other out in the core of the OPT. The A-5000 NEO has the following features: 25 watts of pure class A high power output. A single-ended triode (SET) is a vacuum tube electronic amplifier that uses a single triode to produce an output, in contrast to a push-pull amplifier which uses a pair of devices with antiphase inputs to generate an output with the wanted signals added and the distortion components subtracted. The 300B is directly coupled to the grid of either a 211 or 845, 100-watt plate dissipation, triode output tube. A-305 (per order basis)-- High DC current (up to 40mA DC) 5K 1:1 Internstage transformer optimized for Single-Ended Operation (can not be used for push-pull) H-20-600(per order basis) -- 20W class Single-Ended Output Transformer with 600 Ohms primary for Russian 6C33C tube. 31-10-02 1 An Easily Constructed High-Quality Single-Ended 8W Amplifier Using Standard Valves and the Lundahl LL 1664 Output Transformer Claus Byrith. Other tubes are pair 6SQ7GT or 6C5 triode for front amplification ,pair 6AG7 pentode tubes for driving and one 5U4G(5Z3P)for rectifier. I have a stereo power amp, I have run the output transformer secondaries in parallel to use the amp as a mono power amp. com ,the Leading Trading Marketplace from China. 40-18007 (Fender Style, 4. Manufacturing of single-ended output transformers under the individual technical specification is possible. 5K Output Transformer EL84 6BQ5 6V6 Single Ended Tube Headphone Amplifier. Most of our OPTs can be configured for different primary and secondary impedances. We put Lift switch for reduce that noise from ground. The Audion Silver Night Parallel single ended amplifier comes with JJ 300B’s, but can also be made with PX25 or 2A3 tubes upon request. The 300B is a staple in high quality single-ended design. The input sensitivity is around 2V which is ideal for a power amplifier and ideal when mating with Audio Note's M3 Line pre-amplifiers. Buy low price, high quality el34 output transformer with worldwide shipping on AliExpress. Mirror image chassis. The Output transformer (hand-wound in our own factory) is of complex design employing inordinately high primary inductance to compensate for the mandatory magnetic "gap" required for the uni-direction current and voltage flow of the single-ended output stage. Output Transformers Explained. Alexey Syomin provided six tube rectifiers in each channel and power supply as separate piece (S. Each of the two output triodes are individually self-biased, with only the plates tied together in a parallel configuration, which is nearly equivalent to having one high powered triode. Audio Note Kits PSE Interstage Monobolock 300B with C-Core Interstage and Output Transformers for sale. The Perfect amplifier for your 300B's. High voltage designs. DOUK AUDIO SINGLE-ENDED Pure Class A 300B Tube Amp HiFi Stereo Amplifier DIY KIT - $104. Select picture or schematic to display from thumbnails on the right and click for download. AUDION SILVER NIGHT 300B REVIEW BY SAM TELLIG A year or so ago the British mag, Hi-Fi News & Record Review, published a Valves and Vinyl supplement. The entire circuit, from the power supply to the output stage is 100% hardwired. Shape Tablemodel, with any shape - general. Connecting transformers in parallel with the same parameters results in equal load sharing and no circulating currents in the windings of the transformers. D fully coupled output transformer: Raphaelite has accumulated many years of experience in transformer design and production, and in 2014 introduced an output transformer with extremely complicated structure and manufacturing process. Based on 300B single ended (class A) integrated amplifier embodies technology of direct coupling between stages. From Korean manufacturer Allnic, known in audiophile circles for their single-ended-triode (SET) power amplifiers, comes this push-pull pentode integrated amp. It will achieve in excess of twenty watts per channel — a never before realized level of performance for the 300B in a single-ended circuit. HASHIMOTO (Sansui) 20W Classic SE OUTPUT TRANSFORMERS - on 45-PDSM FFX, Same pair used on the 45M-II FFX. The circuit employed in the KB has only two stages of gain. Moreover, the output transformer is built in a special way, having a dedicated slave out. The output stage is a SE 300B triode and the maximum power output is about 8 Watts per channel. They ship with a fresh set of Genelex Gold Lion 300B tubes (under 300hrs) and Mil-spec Silvania input tubes. Over designed for single ended tube output circuits (triode, tetrode or pentode tubes). Triple is like the name mentions based on a triple Parallel single ended configuration of 300B's, the circuit is simple and uses standard design principles, nothing exotic and is well measured, with the Boully 88 I learned to my own surprise that measurements help fasten the optimising procedure and that indeed good measurements often are. • Parallel single ended in “Class A” • Power: 2 x 30 watt • Tubes: 2 x ECC802 - 4 x KT88 • Inputs: 4 line • Output transformer: Mastersound • Negative feedback: 0 dB • Dimensions: 43 x 33 x 20 cm • Weight: 24 Kg • Single ended in “Class A” • Power: 2 x 15 watt • Tubes: 2 x ECC802 - 2 x 6SN7- 2 x 300 B. Early in 2000 the PSE (Parallel Single Ended) Woodham 300B was introduced. That article was simple enough to explain benefits of each - I guess one thing that it eludes to is a low-watt single ended amp could weigh as much as a higher watt, push-pull design because it can use the same output tubes, but needs a bigger transformer (which are heavy to start with). Loudspeaker - This model requires external speaker (s). I have heard some great sounding single ended triode amps but anything that I could afford to build did not have enough power for my speakers and my musical tastes. Measures 15"X10"X2&1/2" tall. A Two Chassis Single Ended Fixed Bias 300B Amplifier With Fully Regulated Supplies Here is a picture of the completed amplifier and power supply chassis. Z11 silicon steel laminates for both the AC transformer and the filter choke (this is the material other tube manufacturers use for their output transformers) Sophisticated output impedance selector switch (in a 4-8-16 Ohm matrix for best speaker matching) All single-ended operation Mono block for infinite channel separation and devoted power. The 300B version of Siegfried uses an effective turns ratio of 30:1, as this tube is designed for much lower voltage operation than the SV 811-10. See output-trans-freq-analysis-dec-08. Lead time required. Many of you may not know about these different brands and designs of single-ended output transformers, and many of you may not have the technical interest in the test procedure, so here is my suggestion: think of these output transformers as different baseball teams. Special Thanks to the Special 60 (lost one) To all my patrons, all 60 of them, thank you all again. Find great deals on eBay for output transformer single ended and tube output transformer. apartment so good enough to use 2A3 SE with Tango XE-20S Transformer. 300b Se Amp Schematic Here is the heater arrangement schematic. 2Vrms to full output. Original OPA-3A 300B Vacuum tube Amplifier HiFi Headphone Balance output Amp A300 300B Tube Single-ended Class A Audio Amplifier Power Amp 300B parallel Class. 16 - 20 Watts Class A Autobias. Parafeed designs. 300B Single Ended Triode vacuum tube stereo amplifier. I have a stereo power amp, I have run the output transformer secondaries in parallel to use the amp as a mono power amp. Parallel Single-Ended 300B output Transformers - TRANS-305 Group C, bifilar wound double C-core output transformer with 1K25 primary impedance and 4 & 8 Ohm secondaries for 300B or 2A3 in parallel single-ended operation, 180mA standing current, 50 watt, , Size 115 mm x 102 mm x 136 mm, mounting holes centre to centre 87 mm to 84 mm both sides. Natural and Highly Musical! Excellent operational and cosmetic condition. You'll notice that the single output device handles the entire waveform. Now imagine two output tubes, both running in true Class A. 2 PP TUBE Output Transformers HW-40-5 300B KT-88 EL34 - $718. 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 paralleled triodes (ECC88), which drive the 300Bs through a step-up transformer. Enclosure Type Toroidal Transformers Push Pull / UL. at full rated power (+/- 1 db max. However, IMO the basic topology is good. Frequency response at least 20 Hz. Easily find information about turntables, recorders, amplifiers, effects pedals, and more. 5 year old (but only 10 hours use) like new Audio Note Parallel Single Ended Interstage Transformer 300B Monoblocks. An offering of a Single Ended Triode (SET) integrated amplifier for your listening pleasure. That's a parallel single-ended amp. Parallel Push Pull / UL. This construction belongs to the finest posssible. The Black Shadow single ended amplifier 845 is hard wired (Air Wired©) Class A mono-block power amplifier. Parallel Single-Ended 300B output Transformers - TRANS-305 Group C, bifilar wound double C-core output transformer with 1K25 primary impedance and 4 & 8 Ohm secondaries for 300B or 2A3 in parallel single-ended operation, 180mA standing current, 50 watt, , Size 115 mm x 102 mm x 136 mm, mounting holes centre to centre 87 mm to 84 mm both sides. from 20 Hz to almost 90Khz small NFB will be get 10Hz to 100 Khz 1dB with 2A3 SET. Output transformer is FINEMET FM-24WS-3. All Tube Drive, Output Transformer Coupled. Its relatively high power. Conservatively rated at 8 watts per channel. Output transformers contribute to the outstanding sound quality too. This Electra-Print transformer product is to be used for A3 operation of the 300B tube or its equivalent replacement. I wanted compactness of the single chasis stereo amp, but you can see the inside - two PTs, four PS chokes, two grid chokes, 11 big capacitors, two CCS modules, etc. This ratio also determines the output impedance of the triode amplifier when negative feedback is not used, and the higher the ratio, the lower the output impedance. Screens for the input and output tubes are regulated via gas tubes. 2Vrms to full output. 2A3,45,71A,KT88 and 300B as single ended amplifier. “This new Mastersound product is a big evolution in the concept of power amplifiers. Class A, AB etc. Index Introduction Components Simulation The main schematic Power supply Digital Input stage Sonic results Layout views Layout size My address; Introduction This project born because some people ask me a little reference amplifier cheaper than the. These tubes provide lower output power and would be well suited with high-efficiency full-range drivers, headphones, etc. 2 PP TUBE Output Transformers HW-40-5 300B KT-88 EL34 - $718. There are only one capacitor and two resistors in the signal path of this amplifier. You are looking at pair of super rare Lancroft audio single ended output transformers and matching interstage transformers. Designs to 100 watts. Considering the tiny output transformer that can be used, the ease of driving the output valves and the overall simplicity of the end result, this makes a great introduction to valve amps that won't break the bank. 300B Single Ended Triode vacuum tube stereo amplifier. However, IMO the basic topology is good. Transformer is also available in stainless steel box. The Perfect amplifier for your 300B's. Decidedly retro, the 300B harkens to a bygone era that focused on the simplicity of design. All output transformers can be divided into two groups. 5U Cocoliso 300B Single Ended Amplifier on Dec 2016 price is 356,000 YEN on 2017 include Shipping by SAL. The 300B is directly coupled to the grid of either a 211 or 845, 100-watt plate dissipation, triode output tube. Save 300b output transformer to get e Bartolucci single ended output transformers for 300B, 2A3 tube amplifier Raphaelite 7K Driver transformer for parallel. Pair SILVAWELD-300BU amplifiers. This amplifier has interesting feedback from secondary 16 ohm tap to SG on 6SJ7GT. Toroidal Transformers. Our design process ensures that the specified dc and maximum ac power at the lowest frequency applied together do not saturate the core. Call or Email to check feasability. He has one plan for build up 300B SET around a half years ago. The 5U4G rectifier tube takes care of the power supply duties, two 5687 driver tubes and a 6SN7 input stage tube in front of the 300B. A reasonable budget build using Edcor CXSE-series output transformers starts at about $1100, not including the chassis. Like all of Mastersound's amplifiers, this is a single-ended design. The 91E embodies a new proprietary Class A2 parallel feed current source topology (patent pending), combined with toroidal output transformers, and microprocessor controlled automatic bias. Auto biased. His push-pull amplifier (he also publishes a single-ended 300B design, as well as several preamps) is an elegantly simple differential circuit, using 6SL7 dual octal-base triodes in the input stage and 6SN7 as drivers. We put Lift switch for reduce that noise from ground. This is the kit that everyone has been asking for, a higher powered SE amp using technology similar to our popular 2. This is needed so that the dc anode current does not cause saturation of the core. Hi all, I have seen this question here before, but have never seen it answered. With the 2 primary windings connected in series the NP-126 can be used with tubes which internal resistance is between 10K and 20K. The input sensitivity is around 2V which is ideal for a power amplifier and ideal when mating with Audio Note's M3 Line pre-amplifiers. James Output Transformers. Today, Hashimoto products are regarded as one of the premier tube amp transformers among Japanese hi-fi enthusiasts and columnists who originally introduced the sound of single-ended amplifiers in the world. Golden Dream 300b Self cancelling Parallel Single ended Mono-block Hard wired. For one thing, the parallel approach would reduce output impedance, so the ideal output transformer would require a lower turn ratio than that of a single tube SET. A custom Bottlehead plate choke loads the output tube and the output is via a high quality parallel feed coupling capacitor and custom Bottlehead parallel feed output transformer with 4,8 and 16 ohm taps to work with a broad range of speakers. The Evo 300B improves on the 15 watts provided by the Compact 300B, resulting in 24 watts per channel. Screens for the input and output tubes are regulated via gas tubes. This proviso can be satisfied much more easily if there is no output transformer. This amplifier has grace, power and extended band width with the ability to extract the emotional content from any performance. 1PC 120W 6P1 6P14 6P6P 6P3P EL34 KT66 KT88 Single End Tube Amp Power Transformer. The amps deliver 18 watts into 8 ohms from a 300B. SETs are extremely simple and have low parts count. 2 PP TUBE Output Transformers HW-40-5 300B KT-88 EL34 - $718. The Audio Note (UK) P4 Mono Power Amplifiers are Pure Class A Parallel Singled Ended valve amplifiers that use a pair of the highly regarded 300B triode valves per channel, producing a level of performance that is radically superior to the vast majority of current designs. So essentially, you’re listening to the 300B tubes. Parabee uses an improved version of the driver design of our B-Glow 300B kit. Even better, if you change some Component Values, use different Sockets and some additional Components; you can convert the Edison 60 to use the fabled 300B Valves, Push-Pull or Single-Ended. Where I don't want to slog through in a half-understood language, I use Google's translation page. 5 year old (but only 10 hours use) Audio Note Parallel Single Ended Interstage Transformer Coupled 300B Monoblocks. The impedance of the anode windings can range from several hundred ohms up to 10 kohms. The input sensitivity is around 2V which is ideal for a power amplifier and ideal when mating with Audio Note's M3 Line pre-amplifiers. One half of the 12AT7 is configured as an actively loaded voltage amplifier using our Camille Cascode Constant Current Source for super quiet, dynamic, linear performance. The 300B PSE is an unusual single-ended tube amplifier that I designed in 2002. ECC-85 driver. Here a 5842 (or 417A) low impedance, high transconductance, medium mu single triode is used with a 1:1 ratio interstage driver transformer to power the grid of a fixed bias 300B. Output power: 2 x 30W Output transformer: 100W single ended Power transformer: 460WA10 Output power: 30W x 2 Frequency responds: 20Hz-25 KHz (±2dB) Sensitivity: 1. This means at the actual operating points (EL34 @ 400V/70mA & Ra ~ 1k, 300B @ 350V/75mA & Ra ~ 800R) are 6 for the 300B and 4. The reliability is increased with parallel operation than to have…. The A-5000 NEO is a parallel single ended power amplifier. Enclosed (shielded), four slot, chassis Type "X" mounting. Products include: single-ended output transformer, and push-pull output transformer two types #. Tube output transformers(19) Push-pull(6) Single Ended(5) Parallel Single Ended(3) Cathode Feedback PP(5) Power transformers(323) Transformers for tubes(57) Waterproof isolating transformers(11) Variable Autotransformes(5) Speed controllers(5) Chassis and accessories for DIY AUDIO(28) Vacuum Tubes(71) Step-Up transformers 110/230V(9). Single-ended output transformers use a gap in the magnetic circuit. "A world-class, four-star 300B tube amp that should cost $20,000 but will cost you only about $2,000 because you've assembled it yourself" Herb Reichert Stereophile Magazine March 2019. I decided to build a push pull amp using 300B tubes. As interstage transformer the Lundahl LL1660/10mA could be used. Review: Manley Neo-Classic 300B preamp. Based on 300B single ended (class A) integrated amplifier embodies technology of direct coupling between stages. Transformer N°18 , Schwarz Andreas, a selfmade single ended output transformer Frequency response (N°18 = red, blue = reference) Scores: 0 = bad , 10 = excellent frequencyresponse distortion 10kHz square wave width flatness symmetry weighted H3 H2 weighted HF resonance overshoot weighted. Audio Circuit description: 6C45pi A Russian 6C45pi combines input and driver duties and drives a pair of 300B's via an inter-stage transformer. Pair SILVAWELD-300BU amplifiers. They are usually used for relatively small amplifiers, e. Direct Feed is when the DC current that biases the output tube runs through the output transformer. Auto biased. Description of output transformers for sale Output Transformer Design Parameters I have provided a comparison of the frequency performance of my own designs and most of the listed OPTs for sale. The Interstage amplifier is our highest and most extreme expression of Single Ended Amplification reserved only for the true connoisseur audiophile. Most zero feedback single-ended triode amplifier designers seem to have yet to understand that directly heated triode power amp tubes that date from the 1930s – including the famed 300B tube – are not that easy to drive and therefore necessitates the need of a well-designed interstage transformer to exploit their full sonic potential. Western Electric 197a Output Transformers Tube Phono Preamplifier 6sl7 6sn7 6x5. No global feedback around the transformer, instead I decided to experiment with plate-to-plate feedback. I have had a couple of those universal OTs that can be used in either setting by hooking up the primaries differently for single or push/pull. Morrison 300B Single-Ended Vacuum Tube Amplifier is shown below. Hard wired point to point using better grade components and larger, hand-built Audion wound output transformers (EI96). Integrated Amplifier Single Ended Triode Class A 18W (II) Single Ended Triode Class A1 22 W. Transformers for Single Ended amplifiers and transformers for push-pull amplifiers. 20 beautiful WPC, allows for more speaker options. Single 300B Amplifiers. Then there are 4 FC30-3. The use of G-NFB in a transformer coupled design is critically dependant on transformer specification. The original Two Stroke was specced for two 6V6s in parallel single ended or a single 6L6GC. Tokyo, Japan Possibly One of the Best Sounding Output Transformers Ever Built As Good as Tamura or Tango, or Better With 21st Technologies Based on 60 years of Sansui Experiences Introducing the Hashimoto HW-40-5. The Triode then drives the output transformer - the Double C-Core TRANS-300. These are parallel single Ended 300B mono blocks. The transformers’ C-cores are made from custom manufactured unique fine grain-oriented sheets rolled to the thickness of 0,13 - 0,15 mm. 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. The Interstage amplifier is our highest and most extreme expression of Single Ended Amplification reserved only for the true connoisseur audiophile. Made-to-orders only. 000 dari toko online Langsung Jadi Elc. Based on a platform of the Golden Night, the Golden Dream is a self cancelling Parallel single-ended design, utilising two 300B tubes in parallel configuration per mono-block to produce 20 Wpc into 4 & 8 ohm. Lead time required. A prototype was built with components out of the parts bin. A Two Chassis Single Ended Fixed Bias 300B Amplifier With Fully Regulated Supplies Here is a picture of the completed amplifier and power supply chassis. Audio Circuit description: One section of the popular 5687 triode forms the input stage of the amplifier and is used with an un-bypassed cathode resistor for reasons of both superior sound and gain reduction. The point of this layout is to set the output transformer 90 degree from the power transformer and chock so that it has no interference from their radiation. Over designed for single ended tube output circuits (triode, tetrode or pentode tubes). Audion Silver Night 300B Parallel single ended mono-block is Audion's intermediate level power amplifier, using the well known 300B tubes. The DNA Sonett 2 vacuum tube headphone amplifier builds on the musicality of the original Sonett while providing greater power and control into low and high impedance headphones. Special Thanks to the Special 60 (lost one) To all my patrons, all 60 of them, thank you all again. You need a trick output transformer among other things, but it's just like the Champexcept with twice the output power. It is built with components sourced from Europe and the US. The Triode then drives the output transformer - the double C-Core TRANS-300. 20 (1 new offer). The Audion Silver Night Parallel single ended amplifier comes with JJ 300B's, but can also be made with PX25 or 2A3 tubes upon request. NEW FLAGSHIP 30W OUTPUT TRANSFORMERS DESIGN BETWEEN TRIODE LAB X HASHIMOTO - Newly developed for Parallel 2A3/300B. Tube Audio Lab Western Electric Model 91A 300B Stereo Amplifier. World exclusive - NEW Takatsuki TA-300B single-ended amplifier, the TA-S01. Two legs of two series connected 300B's are used in parallel by tying the top plates of each leg to drive the primary of the output transformer. Everything is closer together then I really liked, but I tried my best to somehow put all. Possibilities include: Single-Ended x (1) 300B (8 watts output) Single-Ended Parallel x (2) 300B's (20 watts output) Push-Pull x (2) 300B's (20 watts output). 15W is not so bad, but still, it is gonna start getting expensive. OPERATIONAL NOTES SWITCHING SINGLE-ENDED 18 / PUSH-PULL 36 This amplifier has the unique feature of being able to choose between two circuit topologies. They ship with a fresh set of Genelex Gold Lion 300B tubes (under 300hrs) and Mil-spec Silvania input tubes. Single 300B Amplifiers. Find great deals on eBay for output transformer single ended and tube output transformer. It's much less of a concern for push-pull because it's normally balanced or can be adjusted to be. Since this is a test amplifier, the output transformers are not enclosed in case and unconnected lead wires are untouched for future tests. Frequency response at least 20 Hz. The Triode then drives the output transformer - either the kit1 transformer TRANS-152 or the Double C-Core TRANS-300. it I am still working to give you more information. Proprietary audio/power transformers. In case you are using very sensitive 16 Ohms horns, you can use this Parallel Single Ended amplifier with just one tube per channel, thus giving half the output power, which is enough on that case, AND this automatically produces doubles the output impedance. Output Transformer Tube Amplifier Audio Single-Ended Z11 Oxygen-Free Copper OUTPUT TRANSFORMER 22W 6600 CT Tube Valve DIY EL84 audio fender OT PP 6k6 ohms Single Ended 4,5k audio output transformer for EL11 Used ADC Audio Development Company 114D Line Bridging Output Audio Transformer Sachsenwerk GR 4017 6k audio output transformer for Olympia 573W. 300B A class parallel single ended monaural power amplifier: Tubes: 300B x 2 , 12BH7 x 1 , 12AU x 1: Bias: Self bias: Output power: 15W at 8 ohms: Frequency response: 10Hz-50kHz(-3dB) S/N ratio: 87dB: Input sensitivity: 700mV: Input impedance: 100k ohm: Input gain selector: 0dB / -6dB: Speaker output terminals: 6 ohms / 8 ohms / 16 ohms. As with any tube amplifier, and 300B amplifier in particular, the build budget is dominated by the cost of the tubes, transformers, and chassis. Class A, AB etc. Transformer - Hammond, Output, Single-Ended, 30 W, 160ma DC - New and improved version, higher power handling, smoother frequency response, easy to use secondary tap. The TU-8600R is a 300B single ended audio power amplifier kit. See 300B Single-Ended (SE) Tube Amplifier Schematic (6SN7 input). Everything is closer together then I really liked, but I tried my best to somehow put all. (The "Tube Kingdom" is a quarterly publication from Stereo Sound Publishing Inc. Products include: single-ended output transformer, and push-pull output transformer two types #. Two PSvane 300B power tubes, one 6SN7 and one 6SL7 small signal tubes, and one 5AR4 rectifier. The lower model is the Conqueror 300B stereo amplifier, while a pair of Conquest monoblocks surpasses the Quest with two 300B tubes on each amplifier doubling the output to 18 watts in parallel single-ended configuration. AIQIN is one of China's best selling tube amplifier brand and the 300B version is known for its sound quality and reliability. Perfect audio dual mono 15Watt integrated amplifier by Peter 2013. " In 2016, we have developed the monaural power amplifier, MA-2000, to respond to the user's thoughts. Easily find information about turntables, recorders, amplifiers, effects pedals, and more. Glow Master 300B Single Ended Class A Amplifier SAC. Download the full Elekit TU-8300R-TU-LAB 300B Single Ended Amplifier Kit Specs (PDF). The Interstage transformer design style is currently used on Audio Note's top of the line On Gaku 211 amplifiers. The input sensitivity is around 2V which is ideal for a power amplifier and ideal when mating with Audio Note's M3 Line pre-amplifiers. Susumu Soya and published on Japanese Audio Magazine MJ 2018 August issue. The only way to have more power from the cheap and affordable EL84 is the parallel approach: two EL84 in parallel have a combined anode dissipation of 24W, and output power is comparable to, if not slightly exceeding, the EL34. I have built me a nice little homebrew -- a copy of a VOX AC4 (but with no tone control) which uses a 12ax7 for the tremelo/vibrato, an EF86 pentode for the input stage, and *two* single ended EL84s wired up in parallel. These awesome monoblock amplifiers use a pair of 300B valves in a parallel single ended configuration which gives a fantastic combination of the usual single ended strengths of speed, dynamics and mid band realism with a rather well endowed power output of 18wpc which enables the majority of speakers on the market today to be driven superbly. Parallel Single Ended Dual Mono Class: "A" Special edition for the 20 years of the Evolution 845 project. parallel single-ended and push-pull formats with power outputs ranging from 9 to. Building a Single Ended EL156 Tube amplifier This post is from my original Jenison Audio website which is now sadly extinct. If you've never heard a single-ended Hi-Fi amp with efficient high quality speakers you're missing out on one of life's great sonic adventures. The wattage output in an amplifier may vary from application to application due to many variables such as tube types, solid state vs. The input sensitivity is around 2V which is ideal for a power amplifier and ideal when mating with Audio Note's M3 Line pre-amplifiers. This amp is best suited for use with loudspeakers of 88db or better efficiency. 31-10-02 1 An Easily Constructed High-Quality Single-Ended 8W Amplifier Using Standard Valves and the Lundahl LL 1664 Output Transformer Claus Byrith. This is more than enough to power most speakers in small to mid-size rooms. The gain of the 5842 being around 45 times means that the power amplifier has a sensitivity of around 1. tango xe-60-3. I have heard some great sounding single ended triode amps but anything that I could afford to build did not have enough power for my speakers and my musical tastes. The 3025/3035/3050 Single Ended toroidal output transformers only differ in primary impedance, ranging from 2k5 to 3k5 to 5kOhms. Where possible we avoid the use of any Chinese component. To be honest though, single ended output transformers are gigantic and become very VERY expensive as the power requirements go up, and if you don't get one big enough, it's gonna saturate instantly and sound like crap and also overheat. 1-w300b-be79-01-fw Buy Now. I even built a little box years back, so I could listen to my Audio-Technica's with my single-ended tube amp. Features "Overdesigned" for high fidelity, single-ended, Class-A, tube output circuits (triode, tetrode or pentode tubes). Some valve amplifiers use the single-ended triode (SET) topology that uses the gain device in class A. But to obtain better sound meant that certain aspects required a rethink since they made the sound worse - tube rectification and oil-filled capacitors. Parallel single ended with 300B triode tubes, 6sn7 and ECC83. Great for all 300B tube in single ended circuit for output 8-10 W. 8 watts Class A parallel single-ended no feedback mono power amplifiers, all Audio Note™ silver wired circuit & power supply, Audio Note™ silver foil signal capacitors & tantalum resistors, Black Gate caps where ever possible, all Audio Note™ silver wired output transformer with 0. Purchased for low power system which never materialized due to lack of space in our small retirement home. Since the 300B has very good linearity, coupled with the simple class A single-ended circuit the harmonic distortion generated at the rated output is relatively small. The classic 300B is probably the best known triode, but it will only deliver about 10 watts or so. Potted in metal black round box We manufacture Power transformers for tube amplifiers, HI-FI / HI-END and professional (guitar amps, - Fender, Marshall-Vox ) custom made, hi quality. The Triode then drives the output transformer - the Double C-Core TRANS-300. Enclosed (shielded), 4 slot, above chassis Type "X" mounting, both end bells include knockouts for optional above chassis wiring. Using the LM317-based current source filament supplies I had, the broadband noise (“hiss”) and “buzz” was substantial. World exclusive - NEW Takatsuki TA-300B single-ended amplifier, the TA-S01. Power: 2 x 55 Watt Tubes: 4 x 845 special - 2 x ECC802 - 2 x 6SN7 Inputs XLR: 1 Line + 1 Direct Inputs RCA: 3 Line + 1 Direct Output transformer: MastersounD in litz Load impedance: 4 – 8 Ohm.

Parallel Single Ended 300b Output Transformer