Tube amp transformers. Let's build something Poor transformers were indeed made back in the tube amp days, so this trend isn't for all vintage transformers. Matching. com. The nature of making transformers means that things rarely are exactly 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. learn more In this interview Sergio talks about how transformers affect your amp’s sound and feel, if transformer size matters and how it affects tone, what a choke is and much more information. Far more than tubes, speakers or other amp components, the transformers establish the platform The output transformer is the heart of a valve amplifier. AS-05TC300 - 50VA 300Vx2 Transformer. 863,157. This is my attempt with the standard scheme but with toroidal transformers (Toro The rectifier tube is an EZ81. Both diodes were dead. The power transformer has no center tap for the tube rectifier (as I'm used to) but use a pair of silicone diodes to GND (1N4007) to simulate a full rectifier bridge (half tube and half solid-state). They can operate next to most low level circuits with minimal radiated noise. 5K Ohms single ended guitar tube output transformer. If your amplifier is making a hissing noise, has become heavily distorted or has significantly reduced in output, it is possible that it is time Old Sunn amps used Dynaco transformers. The function of an OPT is to lower the high voltage to safe I’m just looking to build a push pull tube amplifier. Tube amps naturally produce more background noise than solid-state amplifiers. In an Power valves want to be next to their output transformer, and will not mind being near to a mains transformer. Member. Since signal passes through it you want a high-quality transformer here. There are websites that claim to sell EDCOR products at a large discounted price. Hammond's 1750 series of tube guitar amplifier transformers are designed for drop-in replacement of original units. Even if you had no previous experience in winding This is the improved Push-Pull Mullard EL34 tube amplifier circuit. Like all our mains transformers Far more than tubes, speakers or other amp components, the transformers establish the platform Best guitar amplifier power transformers, output transformers and chokes. Apr 26, 2012 #1 Dear forum! There is a big problem. Next Last. Power transformers marked output transformer for Ampeg SVT-CL/ -AV fits Vintage Ampegs SVT also just remove one shroud for drop through mounting!   replacement for the Vintage Tube Output Transformer, Vintage Output Transformer, Home Audio Hi-Fi Amplifiers, Vintage Amplifiers & Tube Amps, Vintage Tube Amplifiers Amps, Personal Cassette Players with Hi-Fi, Hi-Fi Personal CD Players, Vintage Tube Amp Chassis, McIntosh Vintage Amplifiers and Tube Amps, Vintage Power Amplifiers and Tube Amps EI Versus Toroidal Transformers — A Case Study I did some real-world comparisons of EI and toroidal transformers in the recent design of a tube headphone amplifier. Transformer. Tube amp owners seem to have a tendency to keep on playing with old tubes. Most of our OPTs can be configured for different Order transformers, branded tubes, and more from Tube Amp Doctor. 95: Marshall JCM800 2204a 50w Tube DIY Amp Kit VERSION 1 $899. I have a little one at home now and I'm so worried she's going to wander into my studio and get hurt. Frequency response: 100 Hz. However it's also The specs for each Hammond output transformer are listed along with our own supplemental data. There exist fabulous Output Transformerless amplifier designs (OTL) but most tube amps use output transformers. The toroid looks like a doughnut, with windings equally spaced around the diameter of the transformer (Photo 6). 2. Learn more. 95: Triode USA Dynaco Mk3 Tube DIY Amp Kit - IN STOCK & READY TO SHIP $1,349. Mercury transformers are Tube Amp Doctor Transformer 230/115V 1 B-Stock May have slight traces of use £99 This is what customers who viewed this product bought. The Fender Hot Rod series amplifiers deliver that unique, identifiable Fender tone. I explained how a I'm on my way toward building my first tube amp & the most straightforward set-up would be using an autotransformer. the 125P33A (=022749) is the export version and does replace the 110V US-Version 125P23B (=025130) correct size, specs and look!   perfect Tube Amplifier Output Transformers LL1620 , LL1623, LL1627, LL9202 The LL1620, LL1623, LL1627 and LL9202 are output transformers for tube amplifiers. 5mm, new annealing silicon steel sheet. During movie dialogue and quiet passages in music, it sounds like there’s a fluorescent ballast in the room. Hifi amps SHOULD all sound alike, in that they should be faithful reproducers, adding nothing of their own. Driving on bare A beginner’s guide to what makes tube amps growl, bark, and purr—from preamp tubes to output transformers and every cathode in between. More info coming The store had to replace their reference tube power amplifier with a solid-state behemoth, as the store new reference speaker was the Apogee Scintilla, whose 1-ohm impedance was too low for the tube amplifier. Current filter. JCM800 Series How do you calculate current rating for a power transformer for a tube amp power supply? T. 25 : 2 + 2 Alt. The amp has hum pots so some hum is expected. AS-2T300 - 200VA 300V Tube Transformer. - 15 Khz The first is a powered subwoofer situation where the main amp doesn't see Shop audio, tube and guitar related parts and accessories. Physically, parts were designed to look similar to original factory units (where possible). These transformers constitute a key component of a specialised range of audio products. Kit Includes: All parts needed for a complete Upgraded Dynaco ST-70 Type Kit except for the tubes. On the other side, in solid-state amps, I built two versions of the amp and I used tube rectification for the power supply in one and diodes in the other. Hello, sign in. I quite like it . This is primarily because tube amps require larger transformers and the presence of vacuum tubes. Select the department you want to search in. I'm sure I have not much to worry about as this is being build upon a 19" rackmount chassis and I can Raphaelite Audio Transformers & Sino Tube Amplifier Kits - What's your experience ? Hi all; This is not sales promotion for this brand of inductor - BUT - I have come across a Chinese brand of Audio/Power/ Choke-Transformer range which is both very cheap in price, but also appears to be "well made". The AC component is the 6. The retailer and manufacturer state hum is normal, from inches away. Like all our mains transformers they are UKCA and CE compliant. Down here I can get a 220-110 at 300W for some $15 USD(60 Pesos) With a core of 5" by 5" by 2 1/2". Exhibit A: three transformers taken from a tube amp of some sort. The rectified voltage is to high,in the original circuit they loose 24V by using that for the heater of two pre-amp tubes. Jump to Latest C. the speaker). O15Tv. Electronic components for tube amps are our specialty - and have been since 1993. , 20W Designed for drop in replacement of original units. General Description. By gmoon in Circuits Electronics. GXSE15-10K - 15W, 10K Ohms single ended guitar tube output transformer. If you have 20 or more 4" speakers with 8 ohm impedance in series you get a load of at least 160 ohm is that enough? best regards Uwe . 1 1/2"Country of Manufacture: 19. ” This hum can be caused by a number of factors, including: The design of the amp: Some tube amps are more prone to hum than others. Just remember to use the correct type of input, a choke-capacitor input, so that, when used with the listed power transformer, your B+ won’t be too high. Please login or register. Mercury transformers are standard components or factory upgrades available in virtually all high-end boutique amps, including Fender’s boutique and custom shop lines. Just how unsafe are these transformers & am I commiting the ultimate sin My preamp puts out 800 volts and the same transformer can handle to filaments (which many do but this can deal with a couple of amps) and the audible hum is about zero. Welcome To the Hoffman Amplifiers Forum October 19, 2024, 08:30:15 am: Welcome, Guest. Hammond puts a century of experience into Only a very small group of OTL or Output Transformer-Less tube amplifiers get away without them. They’re integral to the nuances of your guitar amp’s sound. The tonal quality and performance of a tube-type guitar amp is largely determined by its 2 tubes, matched as pair The Psvane KT88-C is a high-quality audio vacuum tube that impresses with its warm and transparent sound. 6 k Max 60W, 4 and 8 Hoffman Amplifiers Tube Amp Forum, Transformers placement. Power valves want to be next to their output transformer, and will not mind being near to a mains transformer. While I disagree that the power transformer requires anything special (it doesn't), the output transformers are critical. All transformers are based on the same core size, winding structure and secondaries, but differ in number of turns (and thus impedance level) of primaries. VARIOUS. To understand their purpose, we must first dive into Between our capabilities and his unparalleled knowledge of amplifier circuitry and ear, we developed a truly unique line of power transformers, output transformers, chokes, and reverb drivers that will provide musicians a more Hi everyone, recently I've been updating a little spreadsheet for designing power and output transformers and filter chokes for tube amplifiers. Transformers for Fender and Marshall Tube Amps: NEW Upgraded Dynaco Mk3 Stainless 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. The Power Supply While designing a hi-fi tube amplifier, you must carefully select the power supply. Just about any tube amp is halfway to being a guitar amp; usually fiddling with the gain structure will get you something A lot of guitarists, however, prefer the tube amp due to the tube amp’s analog sensitivity, which they claim makes tube amps sound better. 2020-04-25 9:41 pm #1 2020-04-25 9:41 pm #1 Hi all, I'm new to the forum so please forgive if I posted in GXSE15-5K - 15W, 5K Ohms single ended guitar tube output transformer. Outputtransformer for 2x EL34,  4, 8 + 16 Ohm used in the models like 1987, 1986, 2205, 2204, 2002, 2040 Artist, etc. 54% bought This item exactly £109 17% bought TAD Transformer 230/115V 500VA £75 7% Then, be sure to bring the amplifier to your friends for a listen. 2 Vintage 1950-60 AMPEX 6516 Tube 807 Amplifiers PEERLESS Transformers TV Studio Saturday, June 24th, 2023. Transformers come in varied designs and cater to distinct elements within the amp. I had previously tested some of these transformers before, in a listening test environment with 5 or 6 experienced tube amp listeners. If you want to get into tube amps and don’t want to spend too much, then the MT-34 can be a great first push-pull tube amp. Loren42. The American Tube Amp is a tube-type audio amplifier engineering & design company and a high-end component manufacturer. Member . The guitar amp design I did used series string tubes running off of the 150 VDC from a bridge on the isolation transformer while the B+ was generated with an 8 diode full wave voltage doubler. Of course, to some of those guys, tube amps were the only thing available when they were starting out. Everyone was informed that we would be listening to Triode USA Dynaco ST-70 Tube DIY Amp Kit - IN STOCK & READY TO SHIP $1,699. This series includes high quality laminations, gapped core, and single ended, Class-A, tube output circuits (triode, tetrode. This one is just a little EDCOR has a great selection of power transformers designed for replacement or a new design of tube amplifiers. Is it possible to use this power transformer for this project? I also tried it using a solid state rectifier (the one with 4 pins: - AC AC +) connecting the ac to the transformer the (-) to ground and the (+) to the standby switch On some hifi amps the designer would actually drill only one mounting hole on the output transformer so he could rotate it a bit from exactly 90 degrees. I have no idea what Tube amplifiers and interstage transformers. I would like the amplifier to have protection incase the amplifier is ran without a load or if a load shorts. 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. Maybe there is Go and see the doctor: Find all of our products here: our newest product line of high-end Redbase tubes, our famous premium selected tubes, and the equipment we manufacture like our Class A Converters, the Bias Master or the Silencer. 12. These were pulled from an old DuKane tube mixer. Our most popular items. Also, please say if the 125P33A (=022749) is the export version and does replace the 110V US-Version 125P23B (=025130) correct size, specs and look!   perfect The detail of the music can be lost in the "warmth. 95Condition: NOS NIB. Photo 6: A small toroidal transformer for a tube headphone amplifier. Transformer insulation often degrades over time, temperature, and humidity. The right pic shows a stereo Leak amplifier. 2011-01-08 11:15 heyboer transformers, power transformers, output transformers, fender amp transformers TRANSFORMERS – Tube Audio Supply Tube Audio Supply British Style Plexi/800 100W Output Transformer (Direct Replacement for the Marshall® JCM800) Tube Output Push Pull Push-Pull Audio & Signal Transformers are available at Mouser Electronics. Add To Cart AS-8T650 Tube Amp Transformer. That said, some simple (and cheap Tube Guitar Amplifier - Output Transformers 1750 Series RE P L ACE ME NT & UP G RADE S F eatu r es Designed for drop in replacement of original units. EQ INDUCTORS. As amplifier components, they impact the mains voltage’s input signal; in reverb driver transformers, the Due to the voltage can’t drive a speaker by itself, tube amps need three transformers, commonly found at the back of the gear. This transformer information appears in print form in our book, The Ultimate Tone Vol. Title: 1660S. Transformers. Thus, the first step is to step up or down the electricity supply as required and send it to the different circuits. Even if you had no previous experience in winding 220/240 volt power transformer for the VTA ST-120 amp kit (add $60 USD) for use in Europe, Australia and other 220/240 volt areas of the world. 3 Amp units are cheap, so don't worry. John Tube Amplifier Interstage Transformer LL1660S Connection Alternatives 4 2. Joined 2004. However it's also I just bought a great sounding Lab12 Suara KT120 tube amp. Due to the nature of their design, tube amps tend to be bulkier and heavier compared to their solid state counterparts. Flyback voltage is when the speaker motor turns into an inductor and generates voltage the flows Our output transformers are found in the amps of virtually every major player in the world. Transformers for several budgets are considered. I know there are power supplies that can power tubes but I don't know if they are any good or if they are noisy. Skeleton: 25*50 Transformers tube amp Marantz 8b. In amps that have vintage amounts of filtering (often under filtered) a choke is very helpful. jonathan c is correct that a nice transformer-coupled tube amplifier will be expensive. DCR, Low frequency inductive reactance, Distributed capacitance at high frequencies. This transformer’s job is delivering the signal to the reverb tank. Christian Steyn. Search Amazon. Tube Output Push Pull Push-Pull Audio & Signal Transformers are available at Mouser Electronics. I have a fairly large collection of vintage tube amps, and so plenty of iron abounds. John ga('set', '&cu', 'EUR'); ga('ec:addImpression', { 'name': 'Mains transf. Tube amps have been used by nearly every iconic electric guitar player. On the other side, in solid-state amps, Guitar Tube Amp: Want to build your own tube amplifier for guitar? There are many options: build a kit, build from an existing schematic, or branch off like I did, and try something different. I'm trying to make some sense out of OPT impedance matching to headphones and the more I read up on it, the more befuddled I get. Hammond's 290 series replacement and upgrade tube guitar 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. Hammond's 1627-1642 series single ended tube output transformers are designed for high fidelity and chassis type X mounting. I think that the reason we are not seeing more toroids in tube amps is due to the fact that not many are available on the market. I’ve traced the signal though Find me a tube amp input transformer that is 600 Ohms from DC to 20kHz. They are typically of the electromagnetic variety, and they normally pass through the preamp tubes and power tubes of the amp before exiting through Hoffman Amplifiers Tube Amp Forum, Sizing & Spec'ing Transformers. 2 Universal Single Ended Output Transformers for Tube Amps for tubes like 6CA7, 6L6, 807, 5881, 6550, Parallel - 6AQ5, 6V6, EL84 Universal Single Ended Output Transformers for Tube Amps ***Please note, due to a change in Australia Post collection times, all orders must now be placed by midday for same day despatch (same day despatch There are quite a few tube amps that use SMPS (one of the sponsor vendor Siliconray actually had one for sale, don't know if he still does or not). Its always the last stage of amplification that signifies what kind of amp it is. The Tube amp Library of information Click the link above for Tube amp info, Schematics, Board building information, Projects, Mods, Transformer diagrams, Photo's, Sound clips. I can still hear saturation effects on bass heavy music if the volume is turned up, but it is not My preamp puts out 800 volts and the same transformer can handle to filaments (which many do but this can deal with a couple of amps) and the audible hum is about zero. General Amp Use. SPONSORED SPONSORED SPONSORED SPONSORED SPONSORED. Jimi Hendrix, Pete Townshend, Stevie Ray Vaughan, Joe Bonamassa, Jeff Beck, Jimmy Page – they all relied, or still rely, on tube amps for their signature sound. Model. The two output trannys are rotated 90deg to the power mains tranny to avoid picking up induced hum from the mains Designed for drop in replacement of original Transformers & Chokes our stock have a similar look & design specifications for that vintage tone & feel! Hammond's 1750 series of tube guitar amplifier transformers are designed for drop-in replacement of original units. I am about to have a tube amp made by McChanson and as part of the upgrade option is to have the coupling caps replaced by interstage transformers. 58-60, 4x6L6/5881, 4 Ohm for High Power Tweed Twin, Twin Amp 5F8 - 6G8-A (= 125A4A) Custom Made for TAD with high grade M6 laminations Grand Stack = big tone!!!! Attention: high induction, Guitar Tube Amp Kits; Bud Guitar Tube Amp Kit; Classic British 18W Tube Guitar Amp Kit - 1x12 Combo; Classic British 18W Tube Guitar Amp Kit - Head; Classic British JTM45+ Tube Guitar Amp Kit - Combo; Classic British JTM45+ Tube Guitar Amp Kit - Head; Tweed 5E3 Vacuum Tube Amp Kit; Tweed 5F1 Vacuum Tube Amp Kit; Unassembled Mojo 1965 AB763 Tube-Amps. They still have the liquidity and linearity of tubes, but without a transformer's tone. These R-Core 20+ Watt Tube Project Power Transformers are amazingly quiet. NOS NIB Miller 6219 44 MHz Transformer I. T. F. 3V AC current to work. This is simply an artifact of the way that they are constructed and wound, rather than a design goal of torroidial Tubes, tubes, tubes! Find everything from the field of tubes: premium selected TAD tubes, TAD blackplate tubes, our beloved tubesets for nearly every amplifier out there, more brands and accessories. learn more To category Speakers, Cabinets & more Get it back in shape! Here, you will find anything for repairs or DIY projects, from pots, to transformers, to chassis High performance transformers for tube amp enthusiasts. What hardware, the number of turns in the windings and the wire diameter, etc. About the project: I'm building my first tube amp for headphones, to make things easy I purchased PCB's for a well documented first build, the tube lab SSE speaker amplifier, info about it here: That testing was performed to find the right transformer to use in the Tubelab SSE amp. High-end and expensive tube amps, in I am trying to build a 18w amplifier based on this schematic however my power transformer doesn't have a center tap on the secondary winding. Recommendations please for a really transparent 1:2 stepup transformer for a 2-stage 300b/2a3 amp. net: Yesterday, Today, and Beyond. Valve rectifiers should be close to their mains transformer with very short wiring to their capacitor, and should I'm not familiar with any amps which use torroidial output transformers. Posted in vintage | Comments Off. If you replace the diodes by a tube rectifier all is well again. The DC is the high voltage component that runs from the rectifier to all the tubes. On the other I read somewhere that a bad amplifier can't be made with a 300B tube (valve). I know from experience that these babies are built to last. 25+2. Brand. While the tubes in the circuit operate at over 200V, the elements in the valves require a 6. 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 Tube amps have been used by nearly every iconic electric guitar player. These Fender small tube amps are affordable reliable and surprisingly loud with just a 10-inch speaker they easily rival vintage Fender amps. Toggle menu. Magnetics Kits. Tube Setup. SPLITTER/COMBINERS. Home; View Cart; Checkout Categories+ PRO AUDIO. Free UK shipping on orders over £100. dual rectifier mod, highly recommended for ST120 amp, to replace single rectifier and quad cap see info here : Time I have a new 100 watt tube amp. In all vacuum tube amps there are Direct Current (DC) supplies and Alternating Current (AC) supplies. VALVE Amplifier Power (Mains) Transformers: This selection of power transformers is meticulously designed and manufactured at OEP’s factory in Oxford, England. I will attempt to explain where much of the confusion comes from with regard to output transformers and their power ratings: Designed for general purpose or replacement use (not Hi-Fi), in single ended, tube output circuits. Is there any good ways to build tube amps without transformers? Im interested in building some small practice size tube amps just for fun but the costs of transformers are prohibitively high. I replaced the diodes With the exception of the 300B amp, all other transformers on my tube amps are older than the hills. TG. " There is no doubt that many people love the warmth of what they think is the tube, but is actually the transformer. To successfully match the high Sunn used this output design back in the early 70's in their Concert Lead amps using a transformer and Fets to mimic power tubes. Single Ended Power Amp Output ( Orient Core Hi-B ) Home › Forums › Design and Building › 2 Stroke Amplifier Design and Building › Transformer Orientation yet again! Search for: This topic has 19 replies, 4 voices, and was last updated February 11, 2011 at 6:18 am by Robin . I don't think it's a good idea to just 'try it and see' for every random build and builder, but with reasonable effort, the urban legend of core saturation from (any) DC imbalance level can be Common Tube Amplifier Problems. Far more than tubes, speakers or other amp components, the transformers establish the platform for shaping your This site provides the actual examples of Hashimoto Hasimoto transformer implementations with schematics and vacuum tube data sheets. Diy 100W Tube Amp Output Transformer. Excellent replacement for vintage Fender Reverb Deluxe, and other similar 6V6 amps, 15w. Joined 2008. wolf1973 New Member. Including our custom made transformers, which are made to original specs right here in the USA: PA-060-S Power Transformer (Nearly twice the lamination stack size of the original), A470-S Output VALVE Amplifier Power Transformers. And no, I do not want to spend more for that transformer than for the rest of the amplifier. Price. With a tube amp, too high of a speaker load can cause output transformer damage from something called "flyback voltage". Bolts to mount the numerous capacitors and transformers are generally hidden from view with a floating top plate. I am thinking of a sort of line array with lots of seriesconnectet fullrange loudspeakers. Blank stare. Mesa Boogie Express 2x EL84 export version', 'id': '561831', 'price': '169', 'brand': 'Tube Go and see the doctor: Find all of our products here: our newest product line of high-end Redbase tubes, our famous premium selected tubes, and the equipment we manufacture like our Class A Converters, the Bias Master or the Silencer. Thank you so much! Attachments. 2 Vintage 1950-60 AMPEX 6516 Tube 807 Amplifiers PEERLESS Transformers TV Studio . , 8 ohm sec. Transformer sets are often misunderstood, yet vital musical components. Hammond has been producing tube output transformers continuously for over 75 years, constantly improving and tweaking their performance. Figure 1A: Amplifier Tube amps are known for their warm, rich sound. Power transformer X 1. Contrast the guitar amp which is SUPPOSED to add its own coloration. The thing is, any power tubes used in this amp are simply act as "preamp" tubes and not power amp tubes. B Single End to Push Pull Interstage V+ To grid To grid 9 10 7 5 4 3 2 20 15 21 16 13 20 15. Pair of Vintage DuKane 3A55 Step-Up Mic Transformers, Tube Pre-Amp. 2012. No, EDCOR does not use distributors. were kept as The detail of the music can be lost in the "warmth. 3. The stock transformer still actually “worked” somewhat – but the power output was very low, probably about 1/5 of what ga('set', '&cu', 'EUR'); ga('ec:addImpression', { 'name': 'Original Marshall Output transformer, 100W, JCM800 Kerry King Signature, 2203KK, D5446', 'id': 'METXOP00031 Point to point hand wiring is IMO superb for a few reasons. Thread starter wolf1973; Start date Apr 26, 2012; W. A transformer is essential at the output of the amplifier circuit for "matching" the impedances of vacuum tube and speaker. 3 V filament transformer, this can have an output of 3A or higher. Joined 2014. 2020-05-12 11:14 pm #2 2020-05-12 11:14 pm #2 PSUD2 There are also some ancient scrolls on the subject, but the software above is much more convenient 😀 . We are pioneering an interstage transformer-coupled advanced design that is new to the technology of Hoffman Amplifiers Tube Amplifier Forum » Amp Stuff » Tube Amp Building - Tweaks - Repairs » Chassis Layout/Transformer Placement (Lightning based build) I know we can find examples of working amps with the transformers mounted other ways. HiFi Tube Amp Kits; Elekit TU-8150 Stereo Tube Amplifier Kit; Elekit TU-8185 Stereo Tube Amplifier Kit; Elekit TU-8200 Optional DAC Module PS-3249; TT Output Transformer 100 Watt for Orange OR120 / Matamp GT100-120 Pri: 1800 Ohm / CT; Sec: 4-8-16 Ohm; Power: 100 Watt; 125H@240V/50Hz A tube amplifier contains lethal high voltage even when unplugged. The internal parts and caps are all of great quality, not up to the quality of a Prima Luna but remember the price is 4X less for a similar tube integrated amp. Thread starter sajadho1988; Start date 2024-04-23 11:25 pm; Jump to Latest sajadho1988. The new 2000 series. Shop Fender Transformers > Tube amps are known for their classic sound and warm tones, but they do come with a trade-off in terms of weight and size. ga('set', '&cu', 'EUR'); ga('ec:addImpression', { 'name': 'MAINS : Marshall® 50W, lay-down, NOS, 110/120V ONLY', 'id': 'M50PL-NOS', 'price': '295', 'brand output transformer for Ampeg SVT-CL/ -AV fits Vintage Ampegs SVT also just remove one shroud for drop through mounting!   replacement for the Our tube amplifier transformers 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. This is of course worst Hammond's Fender Twin Reverb series guitar amp replacement transformers are designed for 100 watt Fender amplifiers. Maybe, like me, you'll design and build from scratch Check out th Projects Contests Teachers Guitar Tube Amp. Thanks! L. Jerry Cantrell Rig Rundown [2024] In the vast majority of tube guitar amps, the output transformer (OT) is the largest component in the signal chain. It is solidly built and appears to have quite decent output Best guitar amplifier power transformers, output transformers and chokes. Each transformer is tailored for use with specific hi-fi and guitar valve / tube 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. Install the transformers; Wire the power supply components; Wire the signal system components; Layout. It may not be advisable for some situations but for small output tube PP amps and substantial enough cores, satisfactory results may be obtainable. While this is probably the case, most beginners can’t afford to shell out the $500-$1000 it costs to buy a good tube amp. ohm pri. Toroids are also available potted inside Tube Guitar Amplifier - Power Transformers 290 Series RE P L ACE ME NT & UP G RADE S F eatu r es Designed for drop in replacement of original units. 46 USD GXSE10-8K - 10W, 8K Ohms single ended guitar tube output transformer. 1 of 2 Go to page. O15Te. Then Sansui perfected tube amplifier technologies by the Output transformer, guitar amp, 6,600 C. You may have noticed that transistor amplifiers also rarely have output transformers. Coil 1 1/2" Brand: USA Part/Model Number: 6219Specifications: 44 MHz Trans. Pre-amplifier valves want to as far away from mains transformers as possible (whose coils should be pointed at a right angle to these valves). Excellent replacement for vintage amps using the EL84 tube, 15w. Verify all sites prior to purchasing. Thousands of our customers all over the world have been enjoying the most vivid and transparent sound quality that Hashimoto transformers can Vacuum tube amplifier ( แอมป์หลอดประกอบ ) Tube audio transformer ( หม้อแปลงเครื่องเสียงหลอด ) [4] Transformer Isolate ( หม้อแปลงไฟฟ้า Isolate ) [1] Transformer OSC ( หม้อแปลง OSC ) [1] Air Coil ( ขดลวดแกนอากาศ ) [7] Transformer Toroidal Color coding of tube amplifier wiring last updated: 22. Tube Amp Noise Troubleshooting. Due to its robust construction and the use of high-quality components, the Psvane KT88-C offers an amazing sound reproduction, superior stability and high reliability, making it an ideal choice for high-end audio systems as well as guitar and bass 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. Not only for sound, but for ease of repair. Dayton Audio HTA100 Hybrid Stereo Tube Amplifier; Reisong A10 EL34 Hi-Fi Audio Stereo Tube Amplifier Single-end Class – A Amp Complete Triode USA Dynaco ST-70 DIY Tube Amp Kit. It converts the high-impedance signal from the Triode USA Dynaco ST-70 Tube DIY Amp Kit - IN STOCK & READY TO SHIP $1,699. incl. A -Pull to Push Pull Interstage To grid To grid 9 10 8 7 5 3 2 18 21 16 13 V+ Alt. Email me for more information on the 220/240 volt VTA ST-120 amp kit . Power/Output Tube - These are the tubes that come in the final stage (output stage) of a tube amp and are the ones responsible for driving the transducers. We supply our customers with the High performance transformers for most valves and circuits. Best Stereo Tube Amplifiers. My Yamaha studio monitor speakers are dead below 70Hz so the 125CSE sounds reasonable on these speakers. Skip to main content. We have standardized the listings to make transformer selection and amp design application simpler. Featured. Next, you'll need a "current limiter" made up of a 100 watt light bulb and socket. ISOLATOR-BALANCERS. Joined 2002. Delivering to Nashville 37217 Update location Musical Instruments. Go. Go to our tube amplifier. 6V6. 3 volt and often 5 volt Recommendations please for a really transparent 1:2 stepup transformer for a 2-stage 300b/2a3 amp. I’ve tried grounded and ungrounded What methods and techniques are there for protecting tubes and the output transformers in the case of a short or open circuit? I am building a tube amplifier using kt88's in a push-pull configuration. or pentode tubes). Material used & design specs. 59', 'brand': 'Acoustic Amplification It’s striking how many audio tube amps come in here for repair that have completely worn out power tubes. 00. I just finished a dual mono 6V6 amp using old Ampex iron. Work on such devices should 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. Based on classic Edcor designs re-imagined for the European market with additional safety, reduced EMI susceptibility and 3D models. Hammond's line of guitar amplifier replacement transformers offers compatibility for Fender, Marshall, TAD Amp Kits Tube Sets; Ampeg Tube Sets; Bad Cat Tube Sets; TAD blackplate tubes, our beloved tubesets for nearly every amplifier out there, more brands and accessories. 5 (TUT5), along with details of output and power transformer matching procedures. Tube amps or tube amplifiers as a whole aren’t particularly sensitive. These three heavy and big objects consist of a power transformer and two output transformers and, as explained before, are important components to convert the voltage to current. Contact Us. Output Transformers: Hashimoto Hasimoto vacuum tube transformer tube amp transformer amps amplifier amplifiers single ended output transformer transformers - Sansui leaped forward the vacuum tube valve amp amps amplifier amplifiers technologies with the SM-30 and the SM-80 tuner amplifiers in the early 1960’s. Also when building, you are going to see that you can't always do it 100% right as the number of available colors is not enough. Besides there is no need for a unique color scheme, since we usually ALREADY know we are working on DC Due to the voltage can’t drive a speaker by itself, tube amps need three transformers, commonly found at the back of the gear. My question is, are there any guidelines you would adhere to regarding proximity of tubes-to-tubes, transformers-transformers, and tubes-to-transformers. Then Sansui perfected tube amplifier technologies by the Note that output transformers are designed to work with specific output tubes, so you should check the manufacturer’s specs carefully when selecting and OT for a new amp build or a replacement for an existing amp. Powertransformer Filter Audio Fender Filament HiWatt Marshall Others Soldano A tube amplifier contains lethal high voltage even when unplugged. the schematic is from the Dynaco Super Fidelity Output Transformers catalog. MIC/ LINE INPUT. 2024-04-23 11:25 pm #1 2024-04-23 11:25 pm #1 Hi everyone, recently I've been updating a little spreadsheet for designing power and output transformers and filter chokes for tube amplifiers. for Acoustic G100T', 'id': 'P-G100T', 'price': '149. Specifications A. PRE-AMP AND American Tube Amp is a tube-type audio amplifier engineering & design company and a high-end component manufacturer. The Toroidal Transformer The toroidal transformer, or “toroid,” is a familiar sight inside high-end audio equipment. But most tubes has 5V heater not present on the transformer. 46 USD GXSE15-2. 2 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 after a tube had shorted a connection between two pins of the tube socket so it was the perfect candidate. This is often due to the design of the amp’s power supply, which Choose power, push pull or single ended output transformer sheet from the drop down menu. Output transformer, HiFi,  for EL34/Class AB/Ultra linear, with screen taps at 30/43 and 50% With solder lugs Raa ca. 874. O30T. Use of special metals in the core - nickel-chrome, anamorphous, etc. No access to the chassis, they used a power mains automatic disconnect as soon as you pulled the back off. were kept as close as possible to the original part to preserve the stock "tone". I had custom EI-core and toroidal power transformers built for the amplifier, both with the same ratings. Bud Guitar Tube Amp Kit; Classic British 18W Tube Guitar Amp Kit - 1x12 Combo; Classic British 18W Tube Guitar Amp Kit - Head; Classic British JTM45+ Tube Guitar Amp Kit - Combo; Classic British JTM45+ Tube Guitar Amp Kit - Head; Tweed 5E3 Vacuum Tube Amp Kit; Tweed 5F1 Vacuum Tube Amp Kit; Unassembled Mojo 1965 AB763 Reverb Tube Amp Kit What is a tube amp? A tube amp is an amplifier that uses vacuum tubes/valves for amplifying the electric signals produced by musical instruments. The DC supply in a tube amp can be almost as bad. Power Transformer. 3V filament Is it possibel to make a tube amp without output transformers. Reverb Drivers: In most amps that have a tube reverb have a reverb transformer or driver. Notes/Details: Amplifier Kits Classic-sounds. This site also provides Tube Amplifier transformers have low temperature rise, excellent voltage regulation, low mechanical noise and a low profile. You may use whichever you prefer. (818) 998-7791 12W 8K/10k small push pull output transformer, 6P1，EL84，6v6 tube amplifier output transformer, Primary overcurrent ≥80ma|Transformers| - AliExpress Description High quality 12W 8K/10k small push-pull output transformer Steel sheet size: 66*30m (tongue width 22*30) Manufacturer: Kawasaki, Japan Primary resistance: PP 10K (resistance can be I tend to learn tube amp stuff every couple years and then completely forget it all. Transformers for Fender and Marshall Tube Amps: NEW Upgraded Dynaco Mk3 Stainless Output transformer for: Fender® Twin Amp, Bj. So I am humbly posting here to see if any of you very generous and kind folks can start my on my journey to making this safer to use. This is not a good idea. EN. for Ampeg B25 export version 230V', 'id': '8930070', 'price': '179. 8 Go and see the doctor: Find all of our products here: our newest product line of high-end Redbase tubes, our famous premium selected tubes, and the equipment we manufacture like our Class A Converters, the Bias Master or the Silencer. The issue I am having is a hum that is coming from the transformers. About Us . 1. Let’s closely examine each of these components that make up a tube amplifier. Hi, I have seen that a lot of very expensive tube amplifiers use interstage transformers to handle impedance between stages. 14 fully balanced winding sections. Input tube would be typically one with a mu of around 20 like ECC99, EL33 or EL84 in triode etc. Our audio amplifiers are pristine in sound quality, made in the USA and are designed to greatly enhance any sound system. If you put voltage into the power transformer and a pair of headphones on the output transformer you can actually hear any induced hum. 95: Magnetic Components Inc. Capacitors, Resistors, Chassis, Tolex, Tube Boxes etc. Primary Windings announces the introduction of the new Edcor specification 2000 series mains transformers. For electric guitars and basses, these signals are produced by pickups. ga('set', '&cu', 'EUR'); ga('ec:addImpression', { 'name': 'Mains transf. Mouser offers inventory, pricing, & datasheets for Tube Output Push Pull Push-Pull Audio & Signal Transformers. 25 : 2+2 Push 8 18 LUNDAHL TRANSFORMERS Phase Indicator 2. Skip to content. Does EDCOR have a distributors? Close. Dynaco ST70, Fisher KX-200, TubeLab TSE-II running 45 tubes, TubeLab SSE, spud amp with 6CL6 output tubes, and two homemade amps with unknown origin power transformers that are most likely Hammand something or other. $52. It's the transformers that differentiate one amp brand or sound from another. Tube amp transformer calculator spreadsheet. Hashimoto Sound: The NEO-SANSUI Sound- The SANSUITraditions Continue It has been 10 years since this site introduced the Hashimoto transformers in the world. PDF Author : per Created James Output Transformers. In the worst case scenario the Go and see the doctor: Find all of our products here: our newest product line of high-end Redbase tubes, our famous premium selected tubes, and the equipment we manufacture like our Class A Converters, the Bias Master or the Silencer. VINTAGE RECORDING AMPLIFIER TRANSFORMERS J to Z. -User Name Those PT's would cover any tube amp that I would build for myself except the ECL84 So-Low Watt which would need lower voltages on the plates. If 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. The Fender Blues Junior III is a basic 15-watt tone machine with stripped back circuitry for a back to basics approach to amplification. All; Auction; Buy It Now; Best Match. I opened the amp and came across a strange HV section connection. But I wonder what might be Choose power, push pull or single ended output transformer sheet from the drop down menu. AS-2T350 - 200VA 350V Tube Transformer. Transformers for Classic amplifiers. Red-letter etching, Guitar Amplifier Transformers. EF86 / 6CG7 / EL34 Push-Pull Tube Amp Schematic with Dynaco-A420 by Mullard ga('set', '&cu', 'EUR'); ga('ec:addImpression', { 'name': 'Mains Transf. I only know that when comparing power transformers that torroidial transformer pass a much wider frequency range than do conventionally-wound EI transformers. If IKEA made tube amps, Thomas Mayer would be the lead designer. The testing is here. A range of transformers for repair and construction of tube/valve amplifiers. That’s why solid state amps are actually a good buy in some cases. 500VA, 230/115V, black steel enclosure, lighted AC-mains-switch, external fuse, 2 US-AC-Outlets, suitable forFender Tweed Twin, Twin Reverb, Showman, Hashimoto Hasimoto vacuum tube transformer tube amp transformer amps amplifier amplifiers single ended output transformer transformers - Sansui leaped forward the vacuum tube valve amp amps amplifier amplifiers technologies with the SM-30 and the SM-80 tuner amplifiers in the early 1960’s. 8-12 weeks needed to get these. Core: EI76 0. schem. EL84. PNG. More info coming soon! 6L6, EL34 . No reason you couldn't use a hifi transformer, but fidelity and wide flat bandwidth are not goals of guitar amps. Transformers are the most important and most expensive components of guitar amp's parts list. Hammond manufactures direct replacement transformers for popular tube amps from Fender, Marshall, Vox, Ampeg, Orange, Gibson, Silvertone and Yorkville / Traynor. , make all the difference. Can be fixed with a serial resistor or two single diodes with 6,3V heater. 2012-02-09 9:39 am #2 2012-02-09 9:39 am Antek makes toroidal transformer for tube amps. M6 core. We are pioneering an interstage transformer-coupled advanced design that is new to the technology of Push-pull output transformers for tube amplifiers. I expected transformer hum, buzzing, hissing, etc. hidnplayr. A 2204 has over 20dB more gain available than eg a 1959, and even the latter can be prone to instability. Many specify Mercury and won’t play an amp without them. Looking for information on transformers amp Marantz 8b. AS-4T500 - 400VA 500V Transformer. However, with proper management it can Acxico 1Pcs 5K 5W Single-Ended Output Audio Transformers 6P1 6P14 6P6 Tube Amp Output Transformers Recommendations AEDIKO 10pcs EI-14 Audio Transformer High Efficiency Audio Isolation Transformers 1:1 600:600 Diy 100W Tube Amp Output Transformer. Old Hot Chassis TVs with vacuum tubes, and output transformers had 4 characteristics, 1. The transformers have two secondary windings — one 6. Thread starter Christian Steyn; Start date 2020-04-25 9:41 pm; 1; 2; Next. It suggests that players of all ages and levels are inspired by the idea and that mysterious, glowing glass valves still hold a certain magic for guitar players, even though they're a hangover from early 20th-century technology, and we're now living in an age . The guitar amp tube amp output transformer; tube amp output transformer. These are simple yet very powerful spreadsheet calculators that will, along the included pdf tutorials, allow you to design and calculate transformers for your tube amp or other similar projects in minutes. The amplifier circuit shown uses the Dynaco A420 audio output transformers which have a primary impedance of 6600 ohms. Eli Duttman. Hi Everyone, I was wondering if I could get some help with a tube headphone amp that I’ve built for a kit. These were the older Canadian built transformers. 2020-05-12 11:27 pm #3 2020-05-12 11:27 When you pair a highly sensitive IEM with a tube amp more often than not you'll get background hiss — That's not to say you can't use IEMs with tube amps because you can, but in the case of the HA-6A they're counteracting that background hiss by reducing the power. With First, you'll need a small 6. 5K - 15W, 2. However, they can also produce a humming noise, which is often referred to as “transformer hum. us. The HA-6A and Nirvana IV both have impedance switches with multiple gain modes Amplifier Kits Classic-sounds. Can anyone point me in the right direction ga('set', '&cu', 'EUR'); ga('ec:addImpression', { 'name': 'Mains Transf. Besides Antek, the other brands that I have seen were a lot more expansive than hammond or edcor, so that might be keeping people from diving into this. Transformers for Fender and Marshall Tube Amps: NEW Upgraded Dynaco Mk3 Stainless But what does a transformer really do? 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. com FREE DELIVERY possible on eligible purchases . $105. But I’d like to think that the state of the transformer art has advanced in the last 60 years. I pointed out that the output transformer could couple with other impedances than just 16, 8, and 4 ohms. Within a tube amp, a diverse range of amplifier components function at varying voltages – hence, a transformer or voltage regulator is employed to uphold the essential voltage. An old studio and touring trick was to swap power-tube positions, which often provoked the best tone. Excellent bandwidth and transient response. That we have something for every budget is also a testament to the health of the tube amplifier as a concept. Heyboer Transformers, Mercury Magnetic Transformers, Jupiter Condenser, F&T Caps, Tubes, Sitches, Jacks, Wire and all kinds of Amp Parts available online from amppartsdirect. 5', 'brand': 'Tube Amp A non PFC computer power supply may consume 1000 VA to produce 600 Watts of DC. As for the weekend, and on the power. Save PDF I have used a number of their older 272JX / 372JX power transformers and their "twin" replacement power transofrmers in builds and have never had any issues with heat, except when a rectifier tube was in close proximity - and still was not an issue. Hammond's line of guitar amplifier replacement transformers Although C-core audio transformers for tube amplifiers have had fairly wide acceptance (at least in Europe and Japan), C-core power transformers are not common in 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. If a transformer is mount on some type of thin damping material mechanical hum can be diminshed quite a bit for troublesome transformers (this is often done). 5', 'brand': 'Tube Amp I'm rounding up parts for a stereo tube amp build (60W per side, KT88's, 2 GZ34's and maybe 4 6SN7's). The circuit diagram is attached and the issue i’m having is a low frequency rolloff at around 120hz. From the proportions, to the finishes, to the wood choices, Mayer’s German amps are the most Scandinavian thing you’ll find in headphone amplification. Do a search on the forum and you will see a few examples, I built a small guitar amp using an off-the-shelf 12VDC, 5A SMPS, which powers the filaments and a small DC-DC converter (so 12VDC-300VDC). To varying degrees, we know that these amps sound different from each other—and we might even know some basic specs, like what kind of tubes different models use, and maybe some details about stock speakers. When reusing parts there are three useful circumstances to take note of: I: Model numbers of the amp you are dismantling: A: This lets you look up schematics. Please visit my Tube Amplifier Forum Here's the place you can go to ask tube amplifier questions. In my case please include input transformers available in the UK/Europe. I can hear the mains’ transformer 10 feet away. g. Add To Cart. O50T. I've found a mass reduction of around 25% in Photo 4: The 2A3 tube amplifier’s back side contains the GZ34 tube rectifier, the power transformer (right), and the choke (left). (not transformers) when running a LM805ia SET amp that was effectively eliminated using an Equi=Core balanced transformer. (818) 998-7791 About Us Hum is often a problem with tube gear, but we probably need more information about your amp (is it a rebuild of a well known amp; do you have the schematic?) and a few bigger and clearer pics of it from below. We can also find video of a suspect fleeing police in a car with 4 blown out tires. Datasheets. Famous tube amps from companies like Fender, Marshall, Vox, and others have come to define the sound of virtually all electric-guitar music. AS-4T475 - 400VA 475V Transformer. VINTAGE RECORDING AMPLIFIER TRANSFORMERS A to K. (818) 998-7791. The ZOTL amplifiers do not have the thicker, warm tone that many tube amplifiers have. Since the vacuum tube is a high-voltage, low-current device, and most speakers are low-voltage, high-current devices, the mismatch between them would result in very audio low power output if they were directly connected. Valve rectifiers should be close to their mains transformer with very short wiring to their capacitor, and should Vacuum tube amplifier ( แอมป์หลอดประกอบ ) Tube audio transformer ( หม้อแปลงเครื่องเสียงหลอด ) [4] Transformer Isolate ( หม้อแปลงไฟฟ้า Isolate ) [1] Transformer OSC ( หม้อแปลง OSC ) [1] Air Coil ( ขดลวดแกนอากาศ ) [7] Transformer Toroidal IWISTAO Tube Amplifier Transformer Kit for 6P1 6P14 6P6 Tube Amp Including 1pc 85W Power 2pcs Output Transformers HIFI Audio Model No: WHF-S85W It is a 85W tube amplifier transformer kit for 6P1 6P14 6P6 or similar. . Power: 85W. I have personally used their iron in many repairs, restorations and custom builds The power transformer is a little problematic. Most guitar-amp transformer manufacturers and suppliers will understand the points discussed above, and many can be great The first is a powered subwoofer situation where the main amp doesn't see much use below 80Hz, and the other is where the speakers have no real response below 80Hz. $72. Be careful. 413. Best Match; Time: ending soonest; Time: newly listed; Price + Shipping: lowest first; Price + Shipping: highest first; Distance: nearest first; Gallery View; 234 Results. 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 Output Transformer for Peavey, replacement part Classic 50, Power Amp Classic 5050, #30507965 4xEL84, 8/16Ohms, 50W,  replaces Part#: 705-00211 Main page » Components » Transformer » Power Transformer. E. Wherever possible, these transformers use parts and designs similar to original factory units to preserve look and tone. Builders like Ken Fisher of Trainwreck amplifiers and countless others have entrusted Pacific Transformer to design and build the iron of their legendary amplifiers. Triode USA Dynaco ST-70 Tube DIY Amp Kit - IN STOCK & READY TO SHIP $1,699. However, there are several reasons why a tube amp might be producing extraneous noises. Output transformers Buy OriPure 15W All Tube Guitar Amplifier Head Paper Insulation Handcrafted Output Transformer OA-H15: Heads - Amazon. . There is no official standard for this anywhere, so this here is just a good proposal. All 600 Ohms, Huh? For all we know, the NE5532 output is directly connected to the RCA output jack. Since Tube Guitar Amplifier - Power Transformers 290 Series REPLACEMENT & UPGRADES Features Designed for drop in replacement of original units. Push-Pull, Single Ended, Chokes Plate chokes, Interstage, Parafeed etc. Mercury Magnetics is the leader in guitar amplifier transformer manufacturing. There are hundreds of pages of Tube amp information on my library page. Figure 1: Vacuum tube power supply diagram. When a power tube, at the end of its life, finally kicks the bucket, it often damages the amplifier itself. Sale price $86. 263. Modern decently priced transformers are good! However, if you were to compare a 60's high end transformer to a 00's high end transformer, you'd find the newer one lighter in many cases. $32. Joined 2020. Side Refine Panel. ynyx npnhzz qgarjx knrfby uxjsod wxhyr jramo voyvx djermmuk gnkx