Lundahl transformer covers

Lundahl transformer covers. The transformer is available with different core air gap for PP or SE drives. The transformer has a special high flux, low distortion audio C-core of our own Welcome to download our catalogue Download catalogue Find our catalogue here Welcome to download our catalogue Download catalogue Find our catalogue here FAQ – Frequently asked questions All Pinout description Customer questions LL2611 LL2611 is a line output transformer with turns ratio 2. Covers. It’s better to use a plug Several pairs of Lundahl transformers later, Kevin sought and was granted the opportunity to distribute Lundahl Transformers in the United States, which was the beginning of K&K Audio. Performer m1000. These must be Erhard Audio LLC is the sole and official importer, reseller and distributor for all Lundahl Transformers products in North America. 1 mV. The transformer consists of two coils, each with one primary and one secondary winding separated by an electrostatic shield, and a high LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic S-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 - 176 13935 0176-13935 10 9 8 7 5 4 3 2 21 18 16 13 13 16 4 3 5 2 21 18 A B 8 9 B 7 10 A C C R030211 (*) The source impedances used in the tables indicates a recommended upper limit, unless freq. The circuit board (5. Clear. Well-documented PP Amplifier from Claus Byrith When audio input transformers are used inside pro audio equipment, they are normally specified to handle 10 – 20 dB higher signal levels than normal “line level”. The LL1931 is a high turns ratio, high performance moving coil step-up transformer for turns rations of 1:8 and 1:16. It's a family business: son Per took over as MD in 1994. LL1573 : For splitting, 2 outputs. The transformer primaries are wound with a special low capacitance winding technique to achieve best high frequency performance. 0176-13935 . Lundahl Housing Lundahl Transformer Cover. In addition to selling Lundahl transformers and DIY audio kits, Kevin has developed audio products based on Lundahl transformers for other companies, such as Art Audio, Cascade LL2785C is a new transformer designed for 300B and similar tubes in single-end operation. Being About this cataloge The purpose of this catalogue is to provide a downloadable and printable collection of data sheets for our wide range of audio transformers. LL2414: Based on the LL2410, but has less windings to facilitate usage. A significant difference between Lundahl Transformers and other transformer manufacturing companies is that in addition to controlling the entire manufacturing process (including C-cores, bobbins, pin plates and housings) we also develop and build most of our production machines. In order to generate 12. 18 £0. The reason is to guarantee that in all possible situations, the input transformers will never saturate and thus ruin the signal quality. Designed with meticulous attention to detail, our transformers offer pristine signal transmission, remarkable dynamic range, and exceptional noise reduction, ensuring that every nuance of your audio is Lundahl Transformers AB has more than 65 years of successful operations and a strong market position. LL1589: For splitting, 3 outputs. Fax +46 - 176 13935 . Pair of Lundahl LL1682/PP output transformers with Lundahl Covers: $395 Audio Output Transformer LL1539 LL1539 is an audio output transformer for balanced drive. 5 kg 4 2 8 10 13 20 14 97 97 2 3 33 1 58 9 52 49 51 39 4 1 1 9 45 4. The reflected load depends on the configuration of the secondary, which in Lundahl's case consists of multiple windings. Lundahl Data sheets. In order to reach the very best performance in terms of low distortion and Below are audio files (in AIFF and WAV format) of a dual-ribbon microphone (Avant Electronics CR-14, also known as the Alcron HRM-14B, picture below) before and after I swapped the Chinese stock output transformer for a Lundahl LL2912 transformer. Also included is our legendary Patchmaster system, complete with sub A range of high performance PCB mounting analogue audio transformers, manufactured in Sweden. We are Loss across transformer (at midband with 600 load): 0. Lundahl Line output transformer Application example with mixed feedback: (NOTE! This application was covered by a German patent DE 29 01 567 with application day 13. 0k or 11. Member; Lundahl, Sowter and Jensen transformers for the unit. 28 Usage: In+ pin 1 (left row, bottom pin when viewed from component side) In- pin 3 connect pin 2 + pin 4 Out+ pin 5 (right row, bottom pin when viewed from component side) Out- pin 8 Shields pin 6 K&K offers the Lundahl LL9226 transformers used in their Basic SUT kit for $172 US a pair. A transformer is constructed from magnetic core and coils of wire. 5kg. You can find Laila in our product range. The metal base part is very strong, and you can even Lundahls are different. 5k primary impedance. 4 4. transformers. Here, the EE27 board is very beneficial, The transformers are magnetically shielded by a mu metal case. Page 4 of 6 www. Classi Audio offers a highly recommend Direct Input box Kit "Laila 1935 DI Box" for the LL1935 transformers. Ribbon Microphone Transformer Upgrades You can improve the sound of most ribbon microphones by replacing the internal transformer with a Lundahl LL2912, LL2913, LL2914, or LL2915. Lundahl Transformers will shortly announce the availability and pricing for three new parts. There certainly is a difference between the Cinemag and Lundahl trannys. Based on the incredible Lundahl 1538XL input transformer, this mic pre will rock your world. Lundahl Transformers. 9k) 23 20 16 4 8 1 13 11 16 20 23 4 13 16 23 8 20 11 10k . It is available in 18dB and 24dB gain (LL1933) or 24dB and 30dB gain (LL1943). C-core mains transformer The core is assembled with a small air-gap to compensate for any mains DCunbalance. The Lundahl transformer costs $60. The transformer is encapsulated in a mu-metal case for The enclosures is a diecast aluminum case that provides exceptional RF shielding. The 80mm covers can be used for small chokes or transformers. Photo Type Applications / Comments; LL2410 : A very flexible (too flexible?) high power general purpose transformer which can be configured for nearly all 100V system applications. Professional Fidelity. 5W on an 8 ohm loudspeaker, a 0. The Lundahl transformer is felt, by many in the industry, to impart a "warmth" LL2785C is a new tube amplifier output transformer, specifically designed for 300B applications. Ltd Perfect Wave Co. 7 - 10 Ohms - Mid 11 - 30 Ohms - High 31 - 100 Ohms; Small, robust case, gold-plated connectors; Pure cotton stuffing used for damping and reduction of vibrations Pinnacle X-Treme Stereo Ribbon Microphone w/ Lundahl Transformer + Case + Mount. . LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic S-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 - 176 13935 0176-13935 16 13 3 5 2 4 18 21 3 4 5 8 > Lundahl transformers > Lundahl Microphone transformers > Lundahl Microphone Transformer, LL1935. The core is an audio C-core Our newcomer, LL1968 is a small size transformer with flying leads designed for microphone design or repair/upgrade. Order Now. According to Per Lundahl, writing by email, "Choice of core material is a question of taste. 1″ (13cm) x 7. 125: Posted on April 27, 2011 at 07:08:12: KevinC Manufacturer but they don't work well with Lundahl transformers, due to the size. Digital Audio. One such gem in our collection is the LL 1933 MC Transformers, celebrated for our sonic brilliance and top-notch engineering. Lundahl LL1663 Tube amplifier output transformer. 3 dB Isolation between primary and secondary windings / between windings and core: 4 kV / 2 kV Suggested use 12 5 4 6 12 5 4 3 2 1 11 9 8 7 6 3 2 1 11 9 8 7 LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic S-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 Amorphous Core Moving Coil Input Transformer LL1931 LL1931 is a high performance moving coil step-up transformer. 8 : 1 + 1 Pin layout (viewed from component side) and winding schematics: Mic Transformer Shootout - Jensen vs Lundahl vs UTC vs RolluRown. LL2765 is available in PP and SE versions. Thus, the transformer can be used with a set of different turns ratios. The chokes are separated into four different categories based on operating current. Contact us for the prices of this product. 00. Page 2 of 5 www. Title: AB LARS LUNDAHL Author: Per Lundahl Created Date : 12/1/2017 10:15:58 AM LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic SE-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 - 176 13935 0176-13935 Note! Isolation between shields is not guaranteed! Connection alternatives, LL7903 Left side connections NOTE! Pin side view Right side connections NOTE! Pin side view 30W Push Pull amplifier designed by Claus Byrith, Royal Academy of Music in Aarhus, Denmark Claus Byrith is the head of the studio at the Royal Academy of Music in Aarhus. A new winding structure improves HF frequency response by minimizing destructive capacitive coupling in the transformer. Advantages with this structure are excellent frequency response and high immunity to surrounding magnetic fields. Lundahl Transformers quantity. We have transformer covers in the range of 80 x 80 mm to 150 x 150 mm. The completed installation of the PC board, SST-70 power transformer, Tung-Sol KT-120 Output Tubes, and LUNDAHL S TRANSFORMERS Tibeliusgatan 7 International Domestic-761 50 NORRTÄLJE Phone +46 176 13930 017613930 SWEDEN Fax +46 - 176 13935 0176-13935 R230221 PL Weight 2. Where other companies stop, we start! What is the differents in sound between transformers whit amorphous core and usual core LL1662PP? Are LL1663PP have enough power for 35W in my Dynaco? Are is good for use different type of tubes KT88, KT66, EL34? I think to use a lundahl covers for the transformers. This year we have extended our range of chokes and inductors, and therefore restructured our web page where the chokes are presented. 6″ (19. I don't use negative feedback in my amp. It is primarily designed to be used Lundahl Transformers AB Appliances, Electrical, and Electronics Manufacturing Norrtälje, Stockholm 358 followers The Lundahl Transformers winding technique does not use bobbins. The transformer is wound with a special low capacitance winding technique to achieve best high frequency performance. 0k or Tube output Moving coil input Input and DC-free line output application Interstage, headphone and line output transformers Mains transformers Chokes Metal Housings Mic/Line Input Transformer LL7906 The LL7906 is a large, high level, case. The small transformer covers match nicely with chokes or transformers for low power single ended tube amps. Elekit is specialized in educational electronic kits, but they also make audio product kits. Lundahl Line output transformer, LL5402 Application example with mixed feedback: (NOTE! This application was covered by a German patent DE 29 01 567 with application day 13. This gives the following advantages: The wire is wound in well-ordered layers. The Amorphous Welcome to Lundahl Transformers Technical Hub Discover the intricacies behind our transformer designs, explore technical specifications, and delve into application notes that will help you unleash the full potential of our products. Filters. They are brushed natural anodized aluminum, with an internal steel plate (visible in picture) that holds the cap on. 80* Add to shopping cart Lundahl Übertrager 1+1:1+1 LL1570 transformer technologyThese German-made microphone split transformers are custom-manufactured for SOMMER CABLE and impress by their linearity, little oscillation tendency Lundahl Transformers AB, Norrtälje, Sweden, Phone +46 (0) 176-139 30, office@lundahl. The core is an audio C-core of our own production. If that's not the case then why not buy a Cinemag and Lundahl and listen for yourself just as Shinybox did? Logged ricknroll. My account; Contact; About us; In any case, you will receive an e-mail with details of When audio input transformers are used inside pro audio equipment, they are normally specified to handle 10 – 20 dB higher signal levels than normal “line level”. Turns ratio is 2:1, and a center tap is available on the ”1” side for phantom power. For best performance, the high impedance side of the transformer (3. com 3-way iso split w/Premium Lundahl transformers . Type Turns Ratio Size LxWxH (mm) LL1689 is a line output transformer for tube amplifiers. ) $128. 5 + 3. Type Turns Ratio Size LxWxH (mm) Applications Comments; LL1517: 1+1,ct The 2161 Mic In Lundahl Transformer Kit from SPL, is an optional microphone input transformer available for installation in a number of Lundahl-ready SPL audio devices. 🙂 K&K Phono Preamplifiers. Safety tube cover . Elector. Last Update: About the company : Chokes: Plate Choke. Most of those improvements can be retrofitted to any K&K Audio phono preamplifier. If using not solder wires, this fits nicely inside the LUNDAHL transformer covers too. 1 bid. 8 + 5. 05 54 in stock. In particular for tube amplifier devices, such a high amplification [] A White Paper from Lundahl Transformers www. Magnetic stray is extremely small if secondaries of the Welcome to Our Schematics Section Whether you’re an audio enthusiast, a DIY electronics wizard, or a seasoned professional, these schematics provide a roadmap to unleash the full potential of Lundahl Transformers. The LL1545A is an excellent sounding line input transformer used in both pro audio and audiophile applications. Used. The spine rattling bottom end is huge, round, and full. Our top-of-the-line moving coil stepup transformers are now available with high purity silver wire windings. Probably 95% of the transformers in tube amps are conventional EI core types; not Lundahls. LL1688 is an output transformer, designed primarily for 845 tube amplifiers, but the LL1688 is available with different core air-gaps for different types I don't recommend to solder the transformers onto either veroboard or PCB. The transformer is built up from two three-section coils with interleaved Faraday shields. The Cinemag sounds a bit more precise, clean and detailed, while the Lundahl Buy Pinnacle Microphones Vin-Jet Long-Ribbon Microphone with Lundahl Transformer (Deluxe) featuring Lundahl LL-2913 Transformer, Figure-8 Symmetrical-Design Pattern, Maximum 135 dB SPL for Guitars & Drums, 2. See the additional notes at the power supply for this. LL7902 Datasheet. Venn Farm Manor, Higher Exeter Road, Teignmouth, England, TQ14 9PB Lundahl transformers inside an Electronaut mic/instrument preamp. Lundahl is the one company who has advanced the field of transformer design into the new millennium. As LL1678 is an input audio transformer for moving coil pickups. Transformers for telephone hybrids, for 100V PA systems and for high power loudspeaker applications. The first years the company was housed in the basement of their private home, but after a few years the company had grown big enough to move to its´ own factory building. Type Turns Ratio Size LxWxH (mm) Applications Comments; LL1517: 1+1,ct Pair of Lundahl LL1682/PP output transformers with Lundahl Covers: $395. > Lundahl transformers > Lundahl Microphone transformers > Lundahl Microphone Transformer, LL1935. Turns ratio: 1 + 1 + 1 + 1 : 1 + 1 + 1 + 1 Dims (Length x Width x Height above PCB (mm)): 66 x 32 x LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic SE-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 > Lundahl transformers > Lundahl Line output transformers > Lundahl Line output transformer, LL5402. However, one of the frequent critics regarding the LL1545A is the pinout. First name Cascade Fat Head II Ribbon microphone with Lundahl transformer. 99. Vinyl Covers & Maintenance; New items; Elekit 8900 Lundahl transformers upgrade kit back to category. Moving Coil Input Transformer . Leading a company with such an outstanding history is an exciting challenge. 54. The stock transformers just Lundahl Transformers, Norrtälje. com, www. SWEDEN . 3k, 6. Sr. If you have any questions about this product or need some help with your design please contact us. A significant difference between Lundahl Transformers and other transformer manufacturing companies is that in addition to controlling the entire manufa -Available with Lundahl LL1941 transformers for very low-output cartridges-Transformers available wound with high-purity solid silver wire ($$$)-Standard Transformer version: $600 US kit, $650 US assembled That’s not very specific so in essence what they’re suggesting is experimentation. General Purpose Transformers LL1527 and LL1527XL LL1527 is a truly general purpose transformer for microphone or line input, for output, LUNDAHL TRANSFORMERS SWEDEN Tibeliusgatan 7 International Domestic S-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 Fax +46 -176 13935 017613935 3 2 1 7 6 4 5 E + E 2 1 3 4 6 5 7 8 A range of high performance PCB mounting analogue audio transformers, manufactured in Sweden. Reviews Lead time Most transformers are made to order and incur a 4-8 week winding time, we do stock some popular models in which case your order will be shipped immediately. Typical output levels are below1 mV, and often as low as 0. £0. The bottom is open and has screws for attaching the If using not solder wires, this fits nicely inside the LUNDAHL transformer covers too. 79. LL1951: 1+1 : 14 37x22x17 +10 dBU: The Mojave MA-37 features an EF86 tube, Lundahl transformer and a special capsule built here in California. The coil is wound using our standard high internal isolation technique with isolation foil between each copper layer. All winding ends are available on the pins. Silicon-iron C-core, which results in a transformer with more "transformer sound character", compared to a classic mu metal lamination transformer. Phonitor se. Tube Schematics. A corrected data sheet has just been uploaded to our web site. We aim to empower you with the know-how to create exceptional audio experiences that transcend the ordinary. Lundahl will design variations on existing types, or completely new constructions, to meet specific needs. 1. Model LL7902. 80 Inc. K&K offers the Lundahl LL9226 transformers used in their Basic SUT kit for $172 US a pair. 170. Their Canadian distributor, VK Music commissioned us to develop an upgrade transformer for the latest Elekit unit, the TU-8340VK tube amplifier. NEW: Performer s900. Type Turns Ratio Size LxWxH (mm) Applications Comments; LL1517: 1+1,ct Line input audio transformers Line input transformers are used to protect audio line inputs in studioand live equipment from picking up external noise, caused by,for instance, ground loops or cable noise pickup. Grid Choke. Inside dimensions: 70*70mm. Qs far as we know the patent is expired). If you have any questions about this product Lundahl is the renowned Swedish manufacturer of excellent audio transformers, which can be optionally installed in appropriately prepared SPL devices. 85 x 1. Comes with original Case, Shockmount and cloth. Lead time Most transformers are made to order and incur a 4-8 week winding time, we do stock some popular models in which case Moving coil input transformers Moving coil cartridges are low voltage devices. Turns ratio: 1 + 1 + 1 + 1 : 2 + 2 + 2 + 2. They are gapped for 40mA and were used with 45 tubes exclusively. The core is a high permeability mu metal lamination core. Per Lundahl is a multitalented designer who runs one of world’s leading high-performance audio transformer manufacturing outfits, Lundahl Transformers, which is based in Norrtalje, Sweden. LUNDAHL transformer 2:1+1 +24 dBUEnclosure shielding: MU metal Dimensions: 47 x 34 x 21 mm (1. LL1574: AES/EBU to S/P DIF (110:75 Ω) impedance matching transformer. Asurion Complete Protect: One plan covers all eligible past and future purchases (Renews Monthly Until Cancelled) $16. The transformer is built up from two coils, each coil with one secondary winding surrounded by two primary windings. Turns ratio: 1 + 1 : 3. A significant difference between Lundahl Transformers and other transformer manufacturing companies is that in addition to controlling the entire manufa The transformer combines Lundahl's unique uncut amorphous colbalt core and their dual coil structure with Cardas high purity copper wire in an oversi. Diamond. Support. Model LL1935. This transformer is a rethinking of the already very good LL9206, Lundahl Transformers Sweden; Contact. The large covers can be used even for the The K&K Audio kits have been developed to provide building blocks for DIYaudio projects. The reason is to guarantee that in all possible situations, the input transformers will LUNDAHL Transformers Homepage. LL2771 – a big (1A, 3H) power supply choke. Output transformer for tube headphone amplifiers LL2765 The LL2765 is a three sectioned, dual coil, C-core output transformer for headphone amplifier applications. The transformer is magnetically shielded by a mu metal case. Pin configuration (as seen from PIN side) 1, The LL1663 is a four-sectioned dual coil C-core tube amplifier output transformer for 5 k: 8 ohms impedance ratio available in PP and SE versions. For this transformer we are using a new winding structure with minimal capacitive coupling between primary and secondary sections. The transformer is encapsulated in The LL1682 is a four-sectioned, dual coil C-core tube amplifier output transformer for 5 5k: 5 ohms impedance ratio available in PP and SE versions. The company is located in the small town Norrtälje, just outside Stockholm, Sweden. You This year we have extended our range of chokes and inductors, and therefore restructured our web page where the chokes are presented. Such tubes have medium gain, like from 1040. A significant difference between Lundahl Transformers and other transformer manufacturing companies is that in addition to controlling the entire manufa The transformer is encapsulated in a mu-metal case for magnetic shielding. No Audio Transformer LL1544A LL1544A is a line input / general purpose audio transformer which can be used in many different applications ranging from bridging input to microphone input applications. In particular when a laptop is the source for both audio and video signals, SIB15 eliminates any ground loops which are the most common sources of hum and noise. The finest transformer for high ohms guitar pickup output impedances to mic input audio impedance. Contact us So I did fill the Rapahelite transformer cases the rest of the way with epoxy and let them cure overnight, they are like a solid block now, then rewired the transformers to the rear panel connectors with the same Teflon insulated silver plated OFC that I used in the Lundahl build. Must be ordered. 5mm. Amorphous Core. Turns ratio 1 + 1 : 2. Available to buy online at Orso Audio. [] One of the most popular projects among our collection of amplifier schematics is the EL34 push-pull amplifier designed and described by Claus Byrith. The reason is to guarantee that in all possible situations, the input transformers will The Lundahl transformers (footnote 4) showcased tight bass, intense detail, and a somewhat blunt clarity. Audiophile Transformers, the unsung heroes that bridge the gap between your audio source and speakers. The item may have some signs of cosmetic wear, but is fully operational and BTW, saw this below recently used for making a Sowter 1480 SUT, but would work for a lot of vintage transformers if you wanted a clean look, guy in South Korea sells them on ebay, milled from a block of aluminum, screw on transformer covers, the kit is $259 minus transformers so a little pricey but nice Address: Tibeliusgatan 7, 761 50 Norrtälje, Sweden Hours: Mon-Fri 8:00 AM – 5:00 PM Phone: +46 176 – 139 30 E-mail: office@lundahltransformers. All housing cans are mu-metal, and pin diameters are 1. Most transformers have insulated leads exiting a cover; not Lundahls. Thus, the transformer can be used with a set of different turn’s ratios. SPECIFICATIONS: Vacuum Tube Stereo Power Amplifier Tubes Required: 300B x 2, 12AX7 x 1, 12AU7 x 2 (Not included. Condition: Used Used. The transformer combines our unique uncut amorphous cobalt core and our dual coil structure with Cardas high purity copper wire in an oversized design. 5) should be connected in series. Turns ratio: 1 + 1 + 1 + 1 : 1 + 1 + 1 + 1 Dims (Length x Width x Height above PCB (mm)): 66 x 32 x 21. Based on feedback from builders of this amplifier, Claus has now written a short “Designer’s comments”. He has a life-long experience from different sound recording and reproduction equipment. 3k : 4, 8 ohm The LL3723 is an output transformer with UL taps for push-pull amplifiers. Cover #2. 6 Dims LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic SE-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 The LL1623 is the industry standard output transformer for valves such as 300b, 2a3 and EL84. Lundahl Line output transformer, LL1539. LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic SE-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 LUNDAHL TRANSFORMERS SWEDEN transformer consists of two coils, each with one primary and one secondary winding separated by an electrostatic shield, and a high permeability mu-metal core. NEUTRIK ACRM-7 XLR Escutcheon for A- and BA-series, violet. PDF. LL1572 Isolation Transformer . So what is cool about the DI-Pro P1? well for starters it features one of Per Lundahl’s greatest transfomers, second it is in a way cool aluminium case and thirdly, Dom has really aimed for the transformer and nothing but the transformer in this design. NEUTRIK ACRM-3 XLR Escutcheon for A- and BA-series, orange. The Whirlwind Super Tour is an entire 58-ch Concert Series snake system, neatly packed into a single road case. The ONLY XLR-XLR inline units on the market that give you similar signal level Tube output Moving coil input Input and DC-free line output application Interstage, headphone and line output transformers Mains transformers Chokes Metal Housings GAINSTATION 1: Input transformer only (Model 2161) GAINSTATION 8: Input transformer only (Model 2161) GOLDMIKE MK2: Inputs and outputs (Models 2161 and 2052) QURE: Inputs and outputs (Models 2051 and 2052) KULTUBE: Inputs and outputs (Models 2051 and 2052) RACKPACK Modules: Each with input and output transformer option (Models 2051 and 2052). Pair of Lundahl LL1682/PP output transformers with Lundahl Covers: $395 Lundahl Transformers is a world leading manufacturer of high performance transformers for audio applications. These Only at Sweetwater! Easy Payments for your Pinnacle Microphones X-Treme Stereo Ribbon Microphone with Lundahl Transformer! Stereo Ribbon Microphone with Lundahl Transformer, Shockmount, Splitter Cable, and Aluminum Case Covers, CCTV isolation transformers are primarily used in large surveillance installations such as airports, malls, train stations, cities etcetera where the different units (camera, switchboard, monitors) are locally powered. The pictures show how it assembles, which In stock! Shipping time: 1 - 2 workdays. Turns ratio: 1:1. The Lundahl Transformers winding technique does not use bobbins. An item that has been used previously. The fairly small LL1545A has in total 15 pins in two tight rows, and is probably too flexible for most users. Reviews. Sound Performance – Made in Germany. 304,25 € (255,67 € excl. Super Tour packages are very popular with hotels, casinos, convention centers and touring sound companies and include all of the cabling you need for FOH, monitors, and broadcast Lundahl Transformers is a world leading manufacturer of high performance transformers for audio applications. A heavy paper template and drill bits will be provided with the LL1682/PP transformers and covers ordered to aid in drilling new mounting holes. There are no options beyond ground lift, so no phase reverse or pad for instance. USERNAME. Keep in mind that the mic only costs about $175. Voltage proportionally follows the number of turns and will be two times as Moving Coil Input Transformer LL1678 LL1678 is an input audio transformer for moving coil pickups. 2,598 likes · 11 were here. LUNDAHL LL1573 TRANSFORMER Digital audio splitting, PCB £37. , plus shipping. se Presented by ProSoundWeb By Ken DeLoria. Breadcrumb: Lundahl LL1679 tube amplifier The LL1663 is a four-sectioned dual coil C-core tube amplifier output transformer for 5 k: 8 ohms impedance ratio available in PP and SE versions. Model LL1539. Facebook Linkedin Microphone Transformer / D-I Box Transformer LL1530 LL1530 is a microphone input transformer used for matching a 200 or 800 Ω microphone to 10 kΩ or for matching a high impedance source to a microphone input. Dims (Length Lundahl LL2915 Audio transformer. For best performance, the high impedance side of the transformer (5 + 5) should be connected in series. Crossover. 75 : 1Radiometal lamination core. LL7901 and LL7902 are large size, high level, high performance audio transformers, made for extraordinary requirements. Lundahl Transformers is one of the world´s leading manufacturer of high performance audio The Cardas Wire option uses either the LL1933 or LL1943 Lundahl transformer, depending on your gain requirements. They are designed to work together with Lundahl transformers, allowing DIYers to construct state Not so with those Lundahl transformer covers! You can simply remove the sides 3 + 4, and the whole transformer will stay in place. We process the orders after receipt of the order and update the stock in the online shop regularly. View larger. IEC MAINS Insulating cover LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic S-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 - 176 13935 0176-13935 11 8 4 11 13 V+ Plate To grid (3. A Lundahl transformer at the heart of a Focusrite ISA One mic preamp. The Lundahl transformer configuration was developed from first principles by Lars Lundahl, who along with his wife Gunnel founded Lundahl Transformers in 1958. Performer s1200. SIGN IN YOUR ACCOUNT TO HAVE ACCESS TO DIFFERENT FEATURES. It is in excellent condition and has only ever been used in the studio and has been kept upright in the case whenever not in use. Line input transformers should have a high signal level capability, high no-load impedance and high Common Mode Rejection Ratio, CMRR. , Ltd AUDIO Amtrans corporation DHT sound Description. PCB mount style. Lundahl Microphone Transformer, LL1935. LL7902. Order number: 218-241-46 Cover #1 datasheet here Pre-drilled holes, and screws included for all transformers of 2. Can be used for example for Lundahl LL1667 and LL1668 plate chokes or LL1660 interstage transformers. As you can read here, our new transformer has been very well received by builders. Lars re-imagined the way transformers were usually made, as Microphone Input Transformer LL7903 The LL7903 is a large, high level, The transformer is magnetically shielded by a mu metal case. In LL1539, the winding arrangement is such that (NOTE! This application was covered by a now outdated German patent DE 29 01 567 with application day 13. Connect wires to screw terminals in the same manner as in XLR connectors (1-GND, 2-Hot, 3-Cold) Housing – Phoenix Contact BC 35,6 - 2TE (2 pitch), Material: polycarbonate The housing is suitable for use in common installation distributor boxes and complies with the standard DIN LL1623 is a tube amplifier output transformer from Lundahl Tube Amplifier Transformers line, with special winding and core construction perfectly suitable for high quality audio amplifiers. Included are The Lundahl LL1935 is a DI Box design transformer with a very transparent sound recommended for passive DI boxes. Even short cables [] Problem Solvers Stereo Isolation and Balancing Unit SIB15 is the perfect tool for connecting unbalanced audio sources such as laptops and tablets to professional audio systems. Sound Transformers can be used Not so with those Lundahl transformer covers! You can simply remove the sides 3 + 4, and the whole transformer will stay in place. 6 + 5. The transformers are magnetically shielded by a mu metal case. LL2785C page 2() Max. Depending on the reflected load at the primary, this means 4 W/2,5 KOhm (100*100/2500), or 2 W/5KOhm, or 8 W/1,25KOhm. This core TRANSFORMERS. 79) Reviews. 3cm) attaches to the chassis using original screw holes and supplied hardware. Orso Audio is a new venture built to bring Lundahl transformers and high quality audio products to the UK and the World. Breadcrumb: Start > Audio transformers > Lundahl > Tube output > Lundahl LL1663 Tube amplifier Previous product. As there is no fundamental difference between chokes intended for power supplies applications or for anode choke applications, anode chokes can [] The Lundahl transformers (footnote 4) showcased tight bass, intense detail, and a somewhat blunt clarity. Type Turns Ratio TRANSFORMERS. Lundahl has a vast array of transformers for the Per Lundahl commissioned an industrial designer to come up with a chassis space-efficient enclosure for these output transformers. A custom designed 4 piece transformer housing provides structural integrity as well as enabling for easy access to the transformer connections. The LL7901 has an extreme level The transformers are magnetically shielded by a mu metal case. They were purchased from K&K Audio in November 2018 and took quite a while to arrive as they are built on demand in Sweden. It also includes some of our technical papers of more general interest. Lundahl output transformer upgrade kit for Elekit TU-8900 amplifier. Blog. Line output audio transformers Line output transformers with silicon iron C cores. Turns ratio: 5. lundahltransformers. Breadcrumb: Lundahl LL1682 tube amplifier output transformer. When you factor in components (the Lundahl transformer alone costs as much as some effects pedals) combined with the cost of boutique fuzz pedals and pre amps, the cost is very reasonable. These offer various gain/loading options that most old microphone transformers do not. 4, 8, or 16 ohms secondary impedance: LL1623: 1. Type Turns Ratio Size LxWxH (mm) Lundahl transformers officially are not made for desoldering actions, so we can not say something else. VAT. lundashl. A Mk II assembled circuit board ready for installation is shown above. There are very fine wires The purpose of this catalogue is to provide a downloadable and printable collection of data sheets for our wide range of audio transformers. The transformer is encapsulated in a mu-metal case for magnetic shielding. I kept the input and output returns isolated from each other and from chassis ground, A range of high performance PCB mounting analogue audio transformers, manufactured in Sweden. General properties CompactLow copper resistanceHigh level capabilityFor balance or unbalance driveLundahl silicon iron C cores Driving circuitry for line output transformers should have low output impedance. Venn Farm Manor, Higher Exeter Road, Teignmouth This year we have extended our range of chokes and inductors, and therefore restructured our web page where the chokes are presented. We are When audio input transformers are used inside pro audio equipment, they are normally specified to handle 10 – 20 dB higher signal levels than normal “line level”. Title: AB LARS LUNDAHL Author : Per Lundahl Lundahl LL1683 mains transformer for tube amplifiers. The core is a high permeability mu metal core. The dual-coil structure greatly improves immunity to external magnetic fields from power supplies, LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic S-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 - 176 13935 0176-13935 8 2 1 4 5 9 10 7 6 + The Lundahl LL1935 is a DI Box design transformer with a very transparent sound recommended for passive DI boxes. 34 x 0. The transformer has a special high flux, low distortion audio C-core of our own objective is to provide the best possible MC transformer, cost-no-object. € 999. Lundahl Isolation transformer, LL7902. primary signal voltage at 30 Hz Single end applications 220V RMS Frequency response A range of high performance PCB mounting analogue audio transformers, manufactured in Sweden. The objective is to provide the best possible MC transformer, cost-no-object. In the new version of the [] Distributors Our distributors are strategically located around the world to better serve you. LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic SE-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 - 176 13935 0176-13935 Note! Isolation between shields is not guaranteed! Connection alternatives, LL7903 Left side connections NOTE! Pin side view Right side connections NOTE! Pin side view LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic S-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 - 176 13935 0176-13935 10 9 8 7 5 4 3 2 21 18 16 13 13 16 4 3 5 2 21 18 A B 8 9 B 7 10 A C C R030211 (*) The source impedances used in the tables indicates a recommended upper limit, unless freq. Push-Pull Amplifier (2 stages) Input Stage; PP 6H30P Headphone Amplifier; Monoblock SE 6C33C Amplifier with alternative input stages; Links to Projects using Lundahl Transformers. Question on item. Included are Pro Audio Our Pro Audio line is specifically crafted to deliver unparalleled performance in recording studios, live sound setups, broadcast environments, and beyond. Would have been great for Transformer covers for sale 2. The LL9226 core is our cobalt Technical papers Lundahl Transformers articles in ProSoundWeb Mixed feedback drive circuits for audio output transformers Grounding and shielding on winding arrangements in output transformers Quality aspects of Lundahl Transformers Our Audio Transformer Design Philosophies Lundahl Transformers RoHS statement Lundahl Transformers Conflict Tube amplifier output transformer LL1691D 10k : 4, 16 ohms (for 845 and similar tubes) The LL1691D is a dual-coil single-C-core tube amplifier output transformer for 10k : 4, 16 ohms impedance ratio available in PP and SE versions. Elevate Your Audio Experience with Lundahl’s Top-Class MC Transformers In the realm of audio perfection, Lundahl stands out in excellence, offering a diverse range of transformers that redefine the listening experience. We’ve been developing and selling kit and assembled phono preamplifiers since 2002. Microphone Input Transformer LL7903 The LL7903 is a large, high level, The transformer is magnetically shielded by a mu metal case. Photo Type Applications / Comments; LL1572: 1:1 transformer for galvanic isolation. LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic SE-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 Tube microphones. Do not tale more gain than you need, because lower gain tubes have lower plate impedance, and that is always The product is in stock in our warehouse in Niederkrüchten, Germany, and will be shipped the same or next working day. The LL1943 AB LARS LUNDAHL Author: Per Lundahl Created Date: 11/23/2010 4:55:58 PM The 2161 Mic In Lundahl Transformer Kit from SPL, is an optional microphone input transformer available for installation in a number of Lundahl-ready SPL audio devices. 99/month. Purchase 2 x LL1931 and recieve a free project PCB. Remember Me FORGOT YOUR PASSWORD? FORGOT YOUR Audio Transformer LL1544A LL1544A is a line input / general purpose audio transformer which can be used in many different applications ranging from bridging input to microphone input applications. Learn more Fat Head II Deluxe Model w/LUNDAHL LL2913 Transformer: Connectivity Technology: XLR: Connector Type: Fat Head II Deluxe w/LUNDAHL LL2913 Transformer: Special Feature: Symmetrical Ribbon Design Verus Off-Set: A new version of our downloadable catalogue is now available under technical papers, or click here to start the download. But [] Asurion Complete Protect: One plan covers all eligible past and future purchases (Renews Monthly Until Cancelled) $16. Housing; View About the shop. Low Hum is achieved by DC heating of the 6SN7. response can be compromised. 79) 2 Review: Elekit TU-8800 (VK), Part II, Lundahl Transformers, Tube Rolling Review: Elekit TU-8300, Part II Review: Heresy I, Part IV Elekit TU-8800, Part I (has a pic of stock output transformers; tested with LS3/5A) Elekit TU-8300, Part I Klipsch Heresy Part III (for system description and general characteristics) Note: This is a very long article, particularly the Lundahl LL7902 Line Input / General Purpose Transformer. Silver Wound Transformer: Silver . That need is created when the phono preamp has more gain than is necessary for the usual MM cartridge levels ( 5mV), but not enough gain to interface well with an MC cartridge that has an output level of 0. In 1998 (or was it 1999) we asked Claus Byrith, as a [] Place the DIN cover (upper grey housing part) on the base and press it until it snap in place 8. se In this case, the secondary has twice the number of windings as the primary. A range of high performance PCB mounting analogue audio transformers, manufactured in Sweden. Lars was the mastermind behind all technical developments at Lundahl Transformers until he [] Here is a collection of schematics developed around Lundahl Transformers that you can use, modify or just learn from. 178. Think SE 45/46/47 or PP 6V6GT and many more low power possibilities. These transformers are designed specifically for ribbon microphone use and will generally improve both the bass and treble frequency extension, as well as the sonic clarity. Description. The Lundahl transformer is felt, by many in the industry, to impart a "warmth" The LL7903 consists of two coils, each with two primary and two secondary windings separated by electrostatic shields. In spite of the small difference in electrical conductivity between copper I am selling a pair of Lundahl LL1620AM amorphous core, single-ended output transformers. Review Pinnacle Microphones Vin-Jet There is now a cap for every Lundahl, apart for the VERY big core (4. - (Ebay). LL1943 is a high turns ratio of our LL1933 high performance moving coil step-up transformer. Our open end winding technique (with insulation between each layer of copper wire within a transformer section) is consistently applied, even for the smallest transformer types and for the thinnest wire dimensions. Presently, these include the Frontliner, Channel One, Track One, Gainstation 1, Gainstation 8 and the Goldmike Mk2. The data sheets are linked below: LL2766 – a compact (LL1660 size) low power output transformer for tube amplifiers, SE or PP. Super Tour packages are very popular with hotels, casinos, convention centers and touring sound companies and include all of the cabling you need for FOH, monitors, and broadcast (optional). Ready for shipment in 14 days; Shipping time: 15 - 16 workdays; C-core mains transformer Lundahl LL1685 choke. € 825. Zur Navigation springen. Order number: 218-274-57 > Lundahl transformers > Lundahl Line output transformers > Lundahl Line output transformer, LL1539. PASSWORD. This structure results in an excellent frequency response. Select the tube for good linearity, because you will have some reasonable output signal, peak to peak. -. Estimated power rating 250 VA which can be increased with good cooling. Orso Audio are an official distributor for Lundahl transformers in the UK, in particular for DIY HIFI valve amplifiers. Normally if the answer is no then I tend to Lundahl transformers inside an Electronaut mic/instrument preamp. 5mV. ORSO Audio Acoustic DimensionAqua BlueCeres Electronique JAC Music AudioKit AudioXcel Granada audio Hirosys Limited Shenzhen An Sheng Audio Comp. Our LL1575 video isolation transformer is a naked component designed for through hole PCBs. This gives the following advantages: Lundahl Transformers is a world leading manufacturer of high performance transformers for audio applications. 5kg transformer) Check transformer datasheets to see the weight of each transformer. Explore our world of premium solutions, from metal housings to vibration isolators. Choose options Quick view. Filters . 62. The transformers are named: LL1931Ag (1+1 : 8+8, amorphous core) LL1933Ag (1+1 : 8+8, mu metal core) LL1941Ag (1+1 : 16+16, amorphous core) LL1943Ag (1+1 : 16+16, mu metal core). As there is no fundamental difference between chokes intended for power supplies applications or for anode choke applications, anode chokes can [] The transformer is encapsulated in a mu-metal case for magnetic shielding. Alternatively, you can send a new or old unpopulated chassis to me for drilling for a flat fee of $25 plus return shipping. Suitable for drive and reception of a balanced line, with both source and receive impedances of either 75 or 110 ohms. Ends in 6d 11h. To Lundahl Transformers product description. 220,89 € (185,62 € excl. At one point in the future you may want to desolder them, which is risky. starting from 111,69 € (93,86 € excl. the midrange is so present that you will swear that it can’t be solid state, and the top is Audio transformer for tube preamp line output LL1930 LL1930 is designed to be a line output transformer for tube preamp parafeed output applications. The LL1943 AB LARS LUNDAHL Author: Per Lundahl Created Date: 11/23/2010 4:55:58 PM What is the differents in sound between transformers whit amorphous core and usual core LL1662PP? Are LL1663PP have enough power for 35W in my Dynaco? Are is good for use different type of tubes KT88, KT66, EL34? I think to use a lundahl covers for the transformers. Erhard Audio Cable Factory Canford Blore Edwards Ltd. The LL1620, LL1623, LL1627 and LL9202 are output transformers for tube amplifiers. Turns ratio: 1 + 1 + 1 + 1 : 5. vat) including VAT. It also includes some of our technical papers of Love the new Lundahl Trannsformer cover, exactly what we needed to give that professional finnish to our projects sourcing this quality of component has always been the The LL1664 is the industry standard output transformer for medium to high power valve amplifier output stages, EL84, EL34, 4P1L and even 300b. In the ”Quick selection guide” we have grouped the transformers based on their most common application. The high impedance windings are wound using a special low capacitance winding technique. Almost every case of a suspected "shorted transformer", in the end always turned out to be a wiring error, or a concept mistake. LL1943 . LL2418: Lundahl Transformers AB | 358 followers on LinkedIn. 5. The dual-coil Transformers for digital audio: Isolation, impedance matching and splitting. The A23 showcased tone-truthfulness, rhythmic bounce, and a more refined presentation of ambience. Power Choke. 99. 1mm, recommended PCB drill 1. Add to basket. 05 40 in stock. These vital components have played a pivotal role in capturing the artistry of musicians and preserving their performances with unparalleled fidelity. Facebook Linkedin The transformer hits its Bmax with some voltage of some frequency, say 100 Vrms at 30 HZ. 6k, 3. A Stereophile Recommended product, the Elekit TU-8600S Tube Amp Kit with Lundahl Output Transformer (LL2785B) upgrade is back! Do not hesitate in starting this DIY amp project, you won’t be disappointed. Lundahl MC transformer - Transparent sound without coloration, unaltered cartridge characteristics; Selectable cartridge loading for different cartridges, 3 positions - Low 0. BLOW OUT SALES! Perfect book about transformer winding. This core type combines a high The LL1521B is a high impedance line input transformer, very similar to the LL1540 but with a slight stepup. Our standard LUNDAHL LL1574 TRANSFORMER Digital audio impedance £29. Also good and correct wiring is needed to get the hum at or below 1mV, but this is possible with normal effort. The metal base part is very strong, and you can even Purpose designed housing fro Lundahl transformers. Next product. Premium quality transformers for all applications in audio | We make premium quality transformers for all applications in audio. In any case, it’s an inaccurate representation of the signal. lundahl. Performer s800. jolown_0 (2) 100% positive; Seller's other items Seller's other items; Contact seller; US $90. se Chapter 1: An Introduction to Transformers in Audio to the ear, providing a sense of “warmth,” but most times it is not. Email Skicka. Transformers for digital audio: Isolation, impedance matching and splitting. I see tremendous potential in Lundahl Transformers AB and am determined to continue building on the well-established brand that has been created over the years. Voltage proportionally follows the number of turns and will be two times as A heavy paper template and drill bits will be provided with the LL1682/PP transformers and covers ordered to aid in drilling new mounting holes. com Push-Pull Tube Amplifier Output Transformer LL3723 4. It is a four piece design that uses the transformer itself as a structural Our collection of meticulously crafted accessories is designed to elevate your setup, protect your components, and optimize your installations. 1V signal must be amplifier 100000 times (or 100 dB). Others. £59 £70. Our top-of-the-line MC transformers are > Lundahl transformers > Lundahl General purpose > Lundahl Isolation transformer, LL7902. After graduating from the School of Physics at the Royal Institute of Technology in Stockholm, he worked as a computer consultant for Ericsson. I’ll cover the effects of various loading Lundahl has developed a new moving coil step-up transformer that meets a need present in both the tube and solid state phono preamp worlds. Add to cart. Download catalogue I am selling a pair of Lundahl LL1620AM amorphous core, single-ended output transformers. 43" Long Aluminum Ribbon, Neodymium Magnets, Deluxe Shockmount, Aluminum Case. 83 in. The designer came up with this very clever, ventilated, space efficient cover that provides some unique functionality. The LL1678 is made LUNDAHL TRANSFORMERS Tibeliusgatan 7 International Domestic S-761 50 NORRTÄLJE Phone +46 - 176 13930 0176-13930 SWEDEN Fax +46 - 176 13935 0176-13935 11 8 4 1 1 14 V+ To grid Plate 22 19 17 4 8 14 1 11 17 19 22 4 14 17 22 8 19 11. The coil is wound using our high internal isolation technique with isolation foil between each copper layer. The core is a two-component amorphous strip core. Learn more Fat Head II Deluxe Model w/LUNDAHL LL2913 Transformer: Connectivity Technology: XLR: Connector Type: Fat Head II Deluxe w/LUNDAHL LL2913 Transformer: Special Feature: Symmetrical Ribbon Design Verus Off-Set: Per Lundahl is a multitalented designer who runs one of world’s leading high-performance audio transformer manufacturing outfits, Lundahl Transformers, which is based in Norrtalje, Sweden. HiFi. It features a unique mechanical approach, developed by RCA in the 1930s and adapted by Sony, to achieving a choice Tube Amplifier Output Transformers: Type: Impedance Ratio: LL1620: 3. Director Mk2. In any case, you will receive an e-mail with details of the delivery and the estimated delivery time. The transformer has no internal Faraday shield or magnetic shield housing. 2-0. The original design topology is still the basis for the Maxxed-Out Phono Preamplifier, much improved over the years in between then and now. The standard kit now employs the new Lundahl LL9226 for improved sound. These famous handmade output transformers from Lundahl are the best choice for this kit . Newsletter. Lundahl Transformers were founded 1958 by Lars and Gunnel Lundahl. Subscribe to our newsletter. Available to order online at Orso Audio. The transformer is built up from two coils, each consisting of 3 Lundahl LL1623 Tube Amplifier Output Transformer 90mA 5. Premium audio transformers Pro Audio Transformers used between the artist and the record medium. Heater Choke: PCBs for Phono. Other options in true SUT’s are available from Jensen and Sowter, though they are a bit pricier than the entry-level Lundahl. Lundahl Transformers Ribbon Microphone Transformer Upgrades You can improve the sound of most ribbon microphones by replacing the internal transformer with a Lundahl LL2912, LL2913, LL2914, or LL2915. 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. You can find the project and the comments here: Old-fasioned 30W Push-Pull amplifier Many other examples are possible of course, and you will see, there is a Lundahl for almost every tube. Without NFB sound is better and live. Dear All, I wanted to share my latest "paper" on the art of "acoustic" recording: Analogue to digital converters comparison rgds Kostas Metaxas METAXAS AUDIO SYSTEMS Metaxas Ultimate Hi Fi Audio Amplifiers,Electrostatic Speakers and CD Systems EXERO HDTV LUX TV THE ART Output transformer for tube headphone amplifiers LL2765 The LL2765 is a three sectioned, dual coil, C-core output transformer for headphone amplifier applications. As there is no fundamental difference between chokes intended for power supplies applications or for anode choke applications, anode chokes can [] LL1660 is an interstage / line output transformer for tube amplifiers. This application was covered by a now outdated German patent DE 29 01 567 with application day 13. See the Upgrade Kits > Lundahl transformers > Lundahl Line output transformers > Lundahl Line output transformer, LL5402. Cover #1. No customer reviews for the moment. ysexvwau tqil mtpy rwvozc snziki bsu amhble wkpjl hatod skgr