Best tube amp output transformer MercuryMagnetics. MERREN AUDIO provides custom wound transformers for both output and power applications including chokes. Hashimoto currently provides branded vacuum tube valve amp amps amplifier amplifiers transformer transformers; these transformers include 34 different MC interstage line input and output tube transformers as well as choke coils. C-cores and EI laminations are offered. A SET (or Single-Ended) tube amplifier is the next-best thing to an OTL amp, but it still cannot match up to the quality of sound that the OTL amplifier can offer. You can buy a cheap Chinese amp and replace the standard components such as resistors, capacitors and tubes with the very best audiophile approved parts and it will still sound mediocre because the most On a tube amp with a tube rectifier, it’ll give an indication of current draw relating to the bias/voltage relationship. Mar 13, 2021 · Majority of tube amplifiers on the market have an output transformer. g. Our amp transformers can customize audio for any amp with inspirational and superior sound. Aug 24, 2024 · First, let us consider what the output tube in an OTL circuit must do that is different from amplifiers with output transformers. The use of C-cores with well-defined air-gap results in an almost constant […] Oct 24, 2003 · The Output Transformer in the Enigma Amplifiers were made in the UK by E A Sowter, based on Grain Oriented E and I Laminations, and wound in 14 Sections Frequency response without feedback + and - 0. 00 USD Fender Tweed Princeton Output Transformer (Layer Wound) Sale price $135. the speaker). " Output transf. Included in our range of transformers are. Audio Note™ valve output transformers are arranged into three categories in order to offer the best possible outputs at different price points, fall into the following: Group A. After all, an amplifier’s tone is the sum of all of its parts—tubes, capacitors, wiring, speakers, etc. Tube Amplifier Push-Pull Output Transformer. ) - see our 1627-1642 series. They are really dirt cheap and remarkably small. I highly recommend contacting him. 00 USD Fender Tweed Deluxe Power Transformer (Vintage Voltages) Sale price $185. (818) 998-7791 About Us 15W Tube Amplifier Output Transf Collections: All, Output Transformers. 3VCT filament transformer, and either a variac (variable transformer) or a light bulb socket in series with the primary of the Evatco is also the preferred supplier of the Hammond Classic range made as drop-in replacements for the best-known guitar amps. Transformers for Classic amplifiers. One of our most well-known designs was for Ken Fisher of Trainwreck. Hammond's line of guitar amplifier replacement transformers offers compatibility for Fender, Marshall, Yorkville/Traynor, Gibson, and more. Builders like Ken Fisher of Trainwreck amplifiers and countless others have entrusted Pacific Transformer to design and build the iron of their legendary amplifiers. There are several things that are important in getting an output transformer made. 5K ohm Transformer to 4K ohm output tube? Yup. OTL Vs SET Tube Amplifiers. Moving coil, Interstage and pre-amp output transformers. May 5, 2015 · I did some real-world comparisons of EI and toroidal transformers in the recent design of a tube headphone amplifier. The manufacturer of the output transformer is not lying about the specifications listed in # 2, 3, and 4 above. If your ammeter is slowly going through the roof, you have a bias problem. This topic is covered in PART 1 . Types of Tubes 1 day ago · Powerful Output: With a 150W power transformer and 15W ultra-linear output transformer, the amplifier provides 6W+6W output power, effortlessly driving most home speakers for an enhanced audio Dec 17, 2018 · In a single ended amp (most amplifiers really) the major cost and the primary influence on the sound is the quality of the output transformer. 1 Khz). $5 for materials, $5 for labour and little profit. If you’re unsure then just get as close as you can within reason. If you advance from 0 volts and the ammeter pegs itself, you have a shorted tranny, capacitor or power tube. The majority of output trannys were the minimum size, made from the least expensive materials. A new transformer will not change an amp’s DNA or make a Marshall sound like a Vox. Feb 16, 2024 · Audiophile Tube Output Transformers Whether you are into the clean, free spirited “Single Ended” tube output or high efficiency, high power, “Push-Pull” audio, Hammond has the output transformer for you. Hammond's 1750 series of tube guitar amplifier transformers are designed for drop-in replacement of original units. . The test-dummy amp used in the first case was a stock 1974 Marshall JMP 50 watt model 1987 Lead model – it had recently blown its output transformer Soursound "TDR" Output Transformer for Deluxe builds Sale price $155. 10 watt transformer to a 2. 15W Tube Amplifier Output Transformer Single-ended Z11 Annealed Silicon Steel Sheets EI Transformers 0-4-8ohm for Tubes 6P14 EL34 EL84 6P3P KT88 6P1 Audio HIFI DIY Model No: WVTO-OT15W The ou Heyboer Transformers, Mercury Magnetic Transformers, Jupiter Condenser, F&T Caps, Tubes, Sitches, Jacks, Wire and all kinds of Amp Parts available online from amppartsdirect. These transformers are great, but the problem is that Tube Amp doctor will send it with NO NUTS, SCREWS OR WASHERS which is a shame cos then you will have to find the very special NUTS to be able to install the transformer, but the quality is great tho, thank you ! Jul 8, 2017 · Thing is; the output transformer is the most expensive single part of an amp, so over sizing it doesn't make a whole lot of sense for a new design. Aug 23, 2024 · Matching your output transformer to your output tube does not have to be an exact fit. and to get a low enough output Z, it would have to be a white cathode follower (usually uses a second tube as a constant current source) that is typically used for headphone amp applications in 60's consumer audio. 5k. General. )Specifications: Country of Push-pull output transformers for tube amplifiers. 5-25K - 3. Aug 8, 2014 · I recently was fortunate enough to try some units out made by Mercury Magnetics with the idea being to install and listen to the various tones of some of their models of output transformers. Featured Best selling Alphabetically, Tube amplifier output transformers All OPTs are built in our dual coil single C-core style and can be ordered with a choice of core air-gap for Push-Pull or Single-Ended applications. Here are some options with variations. Output transformers have different Output Transformers Explained. Free shipping on many items | Browse your favorite brands | affordable prices. 5 watt output tube? Overkill, but sure. Push-Pull, Single Ended, Chokes Plate chokes, Interstage, Parafeed etc. Get the best deals on tube amp output transformer when you shop the largest online selection at eBay. In contrast, the larger Bassman/Super Reverb trannies will relate the vacuum tube and circuits’ clipping before the tranny hits the ceiling, which accounts for the fast, grainy Dec 20, 2021 · In others that carry a choke and/or a reverb transformer, the OT will be next down in size from the power (aka mains) transformer. Output transformers are used to couple/connect your amplifier to your speakers, converting the high-voltage signal that tubes generate into a lower-voltage signal suitable for driving speakers. The early version of this was designed by myself around 2015 and it was mostly based on Patrick Turner design method, but it was far too complicated that Patrick himself didn't like it at all! Output transformer for: Fender® Twin Amp, Bj. The Tamura F-5002 Amorphous cores are in a class by themselves, otherwise I tend to source things "locally. Frequency response: 100 Hz. Because all of the DC current drawn by the output tube flows through the output transformer, the transformer must be designed to accept this current without core saturation. Sep 27, 2004 · output transformers Electra-Print output transformers are some of the best. Jul 5, 2011 · In regards to tone and how an output transformer affects it, it’s my opinion that an output transformer does not change an amp’s character. Aug 10, 2024 · Smaller live gigs for blues and jazz players can be done with 2 to 20 watts, while rock and metal musicians usually prefer to have 50 or more watts with their tube amps. You want to avoid tiny output transformer. Oct 12, 2007 · I've had pretty good luck with Electra-Print myself and can recommend them. Featured Best selling Alphabetically, A-Z Alphabetically, Z-A Price, low to high Price, high to low Date, old to new Date, new to old XPWR001 - 500V@100mA CT, 6. The output transformer primary DC current rating is at least 50 mA. For full frequency response (20 Hz. 3. 99% of the tube speaker amps are transformer coupled amps. Amps that use this smaller 28-watt transformer are always going to have that certain compression and dynamic that defines an output transformer going into saturation. I like to design an amp to get the most out of an output transformer. Feb 1, 2015 · Hashimoto provided the AU-111 power and output transformers to Sansui when Sansui reissued the famed AU-111 in 1999. Broskie reckons the small transformers for flea power amps often sound a lot better than those stupid outsized mega humungous things that have now got into fashion for "high end", and has a theory about multiple taps, matching and crossovers that really is "outside the box". They recently made transformers to spec for my headphone amplifier, both the 5K:32 ohm outputs and the power transformer. 2x 6L6GC / 5881 for 2, 4 and 8 Ohm. KT88 Tube Amplifier:Utilising high-quality KT88 power-amp tubes,MOSFET Tube amplifier power out is up to 180W and delivers a dynamic and full-bodied sound output, bringing life to your audio experience. The output transformer primary impedance is 3k or 3. o the voltage transformer or VTX, which serves only the task to present a big as possible voltage to the following amplification stage. There exist fabulous Output Transformerless amplifier designs (OTL) but most tube amps use output Oct 24, 2003 · The Output Transformer in the Enigma Amplifiers were made in the UK by E A Sowter, based on Grain Oriented E and I Laminations, and wound in 14 Sections Frequency response without feedback + and - 0. In many amps (though not all), the OT will be mounted close to the output tubes and output jacks; it functions right between these two links in the chain and it makes sense to keep their connections relatively short. For the tests described here, you'll need an ohmmeter for the simplest testing, and for more advanced tests, a means of measuring AC voltage and current simultaneously, such as a pair of VOMs or DMMs, and a 110/120 to 6. I've heard good things about Heyboer too. Sale price $45. 58-60, 4x6L6/5881, 4 Ohms, for High Power Tweed Twin, Twin Amp 5F8 - 6G8-A (= 125A4A) with additional 8 and 16 ohm taps! MADE IN USA om M50 lamination, paper stick wound Grand Stack = big There are two different kinds of Audio transformers – o the output power transformer or OPT, which matches the output power of a tube to its load (e. 3V filament winding and one plate voltage winding. To understand their purpose, we must first dive into a little physics on basic transformer Sep 23, 2017 · George at Tubelab has a reviewed quite a few, and rates Edcor quite highly. Dec 26, 2021 · Output transformers are not just selected by stating that the output tubes will be grid biased and how many watts your looking to achieve! Wattage is produced by a combination of voltage applied to the plate of the tubes and the current they are allowed to draw ( just like you see in the ohms law wheel you can find on line) in terms of driving a given speaker load. Unfortunately most of manufacturers are not giving that datas. Jack will also work with you on whatever your needs are. If you’re aiming for something that can cover different settings, then it’s the best idea to have a tube amp that can work at different output power levels. 5 dB 3 Hz to above 100 KHz with 10 dB of Feedback Jan 21, 2025 · Output Transformers. To determine the best driver tube for interstage. Shop Fender Transformers > Jun 12, 2018 · So when ordering or considering interstsge transformers please note that is from vital importance to have more datas, like Lp(Hy), Ls, Rdc-primary, Rdc-secondary, Cp, Cs, Coupling factor, magnetic gap value and so. In an amp, energy has to be converted into sound – and the quality of the transformer determines the quality of the rest of the amplifier. I think I understand the power transformers well enough, but I'm having trouble with understanding the output transformers. - ref. Some of our first jobs were rewinding early Marshall Plexis. His prices are very reasonable for custom wound iron. 5. The output transformer primary inductance is at least 15 Henry, preferably 30 Henry. Apr 25, 2020 · I want to build some tube amps (5F1, 5F6A, Steel String Singer & Two Rock JM Sig) and I want to make my own transformer/s. Most of our OPTs can be configured for different primary and secondary impedances. Elecrta-Print phone no. In output transformer coupled circuits most tubes want to work at 400-600 volts on the plate, with an idle current of 50 mA, and see a transformer that is 20-30 to 1 in turns ratio. It still enjoys good success today. He will make recommendations and answer questions if you have any doubts. Hi-Fi and Guitar Power Transformers ; Hi-Fi and Guitar Output Transformers ; Hi-Fi and Guitar Chokes Transformers ; Tube Drivers; Do you need help selecting a transformer? Heyboer Transformers, Mercury Magnetic Transformers, Jupiter Condenser, F&T Caps, Tubes, Sitches, Jacks, Wire and all kinds of Amp Parts available online from High performance transformers for tube amp enthusiasts. The output transformer is one of the most Buy amp transformers online at Tube Amp Doctor affordably! The original since 1993 650,000 components in stock High-quality spare parts for amplifiers Jul 20, 2017 · Output Transformer Coupled vs Output Transformer Less (OTL): Output Transformer Coupled tube amps make use of an Output Transformer to couple the output tube to the transducer. ) to Push-Pull Output Tubes (19, 30, 1J6, etc. Studio FX: Compressors and Microphone Pre-amps. Real HiFi Tube Amplifier:The tube amplifier provides genuine HiFi sound, offering you an immersive auditory experience right within your home. Wide bandwidth output transformers for Single Ended and Push-Pull vacuum tube applications. Larger output transformers are more expensive and traditionally the output transformers in guitar amps are undersized in comparison to hi-fi amps. Poorly made output transformers tend to gargle out, squash and mask those overtones. Most of Hashimoto's main output transformers, excluding smaller transformers, such as 15W in PP or 7W in SE, are constructed with a parallel twin Cut-Core to form a shell type core. Two of the most significant issues on output transformer design are the core selection and the winding techniques. For a half assed automotive analogy, think of the output transformer as playing a similar role to a transmission. com SE AND PUSH-PULL OUTPUT TRANSFORMERS. Sale price $122. Output Transformers. 702-396-4909. 99 USD CXSE5-5K - 5W, 5K Ohms single ended tube output transformer. From there, our reputation grew. 00 USD Designed for general purpose or replacement use (not Hi-Fi), in single ended, tube output circuits. Apr 23, 2024 · Hi everyone, recently I've been updating a little spreadsheet for designing power and output transformers and filter chokes for tube amplifiers. - 15 Khz at full rated power (+/- 1db max. There are a few drawbacks, however. A larger output transformer will have broader frequency response puts out more power, and thusly have more headroom. Economy range, where the price/quality relationship is carefully calculated to ensure audio quality in a compact package. For over 40 years, we have had the opportunity to design and manufacture transformers for some of the most famed amplifier builders in the world. Dec 1, 2020 · 2. Output transformer for vacuum tube amplifier. You may have noticed that transistor amplifiers also rarely have output transformers. to 20 Khz. I had custom EI-core and toroidal power transformers built for the amplifier, both with the same ratings. (818) 998-7791 I recently was fortunate enough to try some units out made by Mercury Magnetics™ (www. 5 dB 10 Hz to 50 KHz, and about + and - 0. Apr 30, 2010 · An output tranny for a 100 Watt valve amp was approx $10 to $20 in quantity. 88 USD The best guitar amp transformers, output transformers and chokes in the music industry. 5 dB 3 Hz to above 100 KHz with 10 dB of Feedback In regards to tone and how an output transformer affects it, it’s my opinion that an output transformer does not change an amp’s character. The test-dummy amp used in the first case was a stock 1974 Marshall JMP 50 watt model 1987 Lead model — it had recently NOS NIB Vintage Triad A-81X Driver Output Transformer Push Pull Tube Amps 15 Ma Brand: TriadPart/Model Number: A-81X Driver Transformer, Driver Tubes (30, 1H4, etc. Sep 25, 2016 · There is really one circuit this thing was made for that is a cathode follower. CXSE3. com. Only a few Hi-end valve amps had output trannys that were made with the best quality materials. See full list on tubelab. In an OTC amp, the output transformers play a vital role in determining the sound quality/performance of the amp. ” And of that “iron” (transformers), the output transformers seem to impart the most difference in sound-quality. Only a very small group of OTL or Output Transformer-Less tube amplifiers get away without them (which have their own set of pros and cons). com) with the idea being to install and listen to the various tones of some of their models of output transformers. The plate-to-plate impedance is only one of many parameters that needs to be optimised, and in some respects is the least important. A Single Ended amp features just one power tube which connects to an output transformer. In tube amplifiers you need an OPT because the voltages in the tube amplifier are too large for your loudspeaker, while the current capability of the tubes is too small to drive your speaker correctly. 4. The transformers have two secondary windings — one 6. Dec 7, 2009 · The output transformer is the final part of a valve amplifier, and it has a great deal of control over the performance of the amp as a whole. The main parameters are: (a) the reflected primary impedance for a given secondary load impedance, which must match the needs of the particular tube being used, (b) the primary inductance, which determines the low frequency response, (c) the primary leakage inductance and For 40 years, Pacific Transformer (the parent company of Pacific Audio Magnetics) has been designing guitar amplifier magnetics for some of the most iconic amps ever built. 3V@1A CT, & 5V@2A. Feb 1, 2015 · 2. 5W, 25K Ohms single ended tube output transformer/Reverb Driver. Jul 9, 2024 · I have read that when people talk about good/great tube amps, among all the other things important, it seems one of the things at the top of the list is the quality of the “iron. Hammond has been producing tube output transformers continuously for over 75 years, constantly improving and tweaking their performance. Nov 18, 2020 · The 300B is probably the most famous output tube around the DIY valve community and some of us get really annoyed from its popularity! I mean seriously, every tube fan I know has talked about the 300B! ANYWAY, I’m proud to announce you the OTSE-400NX-034 – my ULTIMATE OPT dedicated to the so renowned 300B DHT! Here the best materials are The single ended output stage has been with us since the beginning of the vacuum tube era. The quality of the output transformer determines how well the production of tone is executed by the amp — those notes that float between the strings which are created by overtones, chimes, bell tones, sustain, etc. zfrcy zllo kkvwq uyycf vnll yls hxhf gtevp eqwourk roouo