Jensen transformers application notes. e-mail us at info@jensen-transformers.

Jensen transformers application notes 30, 2022 9:00 am – 12:00 Founded in 1974 Jensen Transformers, Inc. 018% typ at 20 Hz and +4 dBu output level P: (818) 374-5857 F: (818) 374-5856 info@jensen-transformers. ISO•MAX Product CI-2RR in a HI-FI system. Application Notes; Schematics; What is a ground loop? Seminars; Careers; Close; About. sales@jensen-transformers. Since the cable that connects isolator output to equipment input is the main source of capacitance, it must be kept Line Input - Two channel isolator for professional line inputs up to +19 dBu. 81 K Compatible with: 63 v PIN 3 PIN 1 AKG 12V & 48V, Neumann, Sennhei ser 48V, Schoeps, Shure SM81 & SM85, Crown PZM 6. His Norwegian father, Dr. 9, No . But there’s much, much more to transformer design than perceived ‘warmth’. Comes standard with XLR-F inputs and XLR-M outputs. Designed specifically to eliminate the hum and buzz that is often encountered when connecting the audio output from a consumer device to another. com JensenThe Worlds Finest Audio Transformers JT-13K7-A Microphone Input Transformer 1:5 STEP-UP FOR MEDIUM IMPEDANCE AMPLIFIERS Typical Application %PDF-1. Even when being subjected to extremes, the SUB-1RR is able to gracefully handle low Transformers have advantages of being passive (no power required), reliable, and rugged. com CATV Jensen Transformers Inc. 5 mm input and output connectors for easy interfacing with headphone and ear-bud outputs. If we assume that the application note q 70 + f 10 33 2. 81 K resistors as closely as possible, absolute value is not Roederstein (Resi Sta) MK-2 series metal film recommended. jensen-transformers. The breakdown voltage specification Jensen Transformers’ Application Note AN-003, “Interconnection of Balanced and Unbalanced Equipment,” by long-time company president Bill Whitlock. The CI-2RR’s exceptional frequency response, phase accuracy and signal handling makes it Line Input - Two channel isolator for professional line inputs up to +19 dBu. HOLLYWOOD. rev. Head Office; Distributors; Close; Search Search. Both limited warranties are subject to the following limitations: App Note Nam: Link to Aplication Notes: Long Line Driver & Receiver CMOL-2x600T2: AN-101. The breakdown voltage specification is intended to insure Jensen Transformers Inc. com JensenThe Worlds Finest Audio Transformers JT-6110K-B Line Input Transformer 4:1 STEPDOWN FOR 'BALANCED BRIDGING' INPUTS Typical Application • Our highest level handling input transformer Hi All, I've been reading Jensen AN-002 to understand how impedances reflect between windings (page 2). 1uF LINEAR IC 21 p F IuF R feedback is shtmt is shunt is 10 K ohm is 100 1K ohm *WITPUT ISOLATOR is a Iw resistor, with 40 turns of #30 wire g. In ISO-MAX models with an “I” in the model number (CI-2RR and PI-2XX, for example), the Faraday shields responsible for extremely high noise rejection unavoidably makes their output sensitive to capacitive loading. For example, a kick drum, when heard through a Jensen transformer will actually sound like a live kick drum because the fundamental note and all its overtones have arrived at your ears at the same time! Posted in: Transformers NOTE: If you're not sure which model to choose, please check out our Jensen Transformers Application Guide. Tens of thousands of Jensen transformers are in use today throughout the world, and maintain a flawless reputation for superior quality and reliability. Special Note for Vacuum Tube Applications . Inside each Iso-Max ground isolator is a Jensen Transformer. Model Jensen Iso-Max pro-isolators present a complete range of passive, hum-eliminating solutions for balanced and unbalanced signals where absolute audio performance is required. Due to the isolation they afford, hum can be substantially reduced. Special Note for Vacuum Tube Applications Application Notes; Schematics; What is a ground loop? Seminars; Careers; Close; About. Read the full article at www. Even when being subjected to extremes, the SUB-2RR is able to gracefully handle low frequencies down to 20 Hz with less than 0. They are available free on request. com JensenThe Worlds Finest Audio Transformers JT-13K6-C Microphone Input Transformer 1:5 STEP-UP FOR MEDIUM IMPEDANCE AMPLIFIERS Typical Application build above circuit available from Jensen Transformers . IMPORTANT NOTE: This device is NOT intended for use in life support systems or any application where its failure could cause injury or death. com. PHONE (213) 876-0059 PIN 1 Application Note SOME TIPS ON STABILIZING OPERATIONAL AMPLIFIERS (1 MERITS OF STABILITY For the scope of this text, stable Deane Jensen,"Some tips on stabilizing operational amplifiers", Recording Engineer/Producer, Vol. com JensenThe Worlds Finest Audio Transformers JT-123-SLPC Line Output Transformer QUADFILAR WINDINGS Typical Application • Distortion 0. Inside are two Jensen high performance transformers that are able to withstand signal levels to +19 dB at 20 Hz without discernible distortion. Jensen Transformers > Home Theater Details > Audiophile > Phono SUT. Transformers offer the fundamental advantages of isolation . com JensenThe Worlds Finest Audio Transformers JT-115K-E60 Microphone Input Transformer DOUBLE SHIELDED VERSION OF JT-115K-E Typical Application • Ideal for FET or vacuum tube input amplifiers Jensen Transformers Inc. com JensenThe Worlds Finest Audio Transformers JT-123-BMCF Line Output Transformer QUADFILAR WINDINGS Typical Application • Distortion 0. PARAMETER CONDITIONS MINIMUM TYPICAL MAXIMUM No license is granted by implication or otherwise under any patent or patent rights of J ensen Transformers, Inc. Match 6. Connect the audio output from the computer to RCA inputs on the CI-RJ2R transmitter and the CI-RJ2R receiver will deliver the audio without distortion or Jensen JT-11-DM 1:1 Output Transformer Jensen JT-10KB-D 4:1 Input Transformer Jensen Transformers, Inc. History; Client List; Close; Contact. audiotechnology. Jensen’s extended frequency response and time accuracy produces legendary sonic transparency while Faraday and In many Jensen designs, this frequency is well under 1 Hz. The CI-RJ2R makes it easy for a presenter to play audio tracks from their computer to a PA system. Again, this is a matter of time alignment of musical overtones. Description: Testing this out for words test test Your Information Name:(*) Company:(*) Website: Shipping Address:(*) Country:(*) Inside are two Jensen high performance transformers that are able to withstand signal levels to +19 dBu at 20 Hz without discernible distortion. com JensenThe Worlds Finest Audio Transformers JT-11P4-1 Line Input Transformer 1:1. The Jensen DIN-MS-2P is the perfect interface for splitting a microphone to feed more than one mixer at the same time. He’s a Life Fellow of the Audio Engineering Society and a Life Senior Member of the Institute of Electrical and Electronic Engineers. IMPORTANT NOTE: (818) 374-5856 • www. This is the functional heart of just about every product we produce. luF IN914B (-18. N. Arthur S. 01% distortion and less than 1 dB of phase shift. Jensen Transformers’ president Bill Whitlock talks cores, phase distortion, and the enduring legacy of Deane Jensen. 018% typ at 20 Hz and +4 dBu output level Bill Whitlock Audio Transformers Page 2 Handbook for Sound Engineers, 3rd Edition Figure 1 - Magnetic Field Surrounding Conductor Figure 4 - Inductive Coupling Figure 3 - Coil Concentrates Flux Figure 2 - AC Magnetic Field 1 Audio Transformer Basics Since the birth of audio electronics, the audio transformer has played an important role. In home audio systems, this is typically caused by the cable TV connection, less than ideal electrical wiring or voltage differentials known as DC offsets that often occur between two Audio to CAT-5 Converter - Two channel isolator sends -10 dB consumer level audio over CAT-5/6 cable for easy integration with network wiring. Connect the CI-1RR in between your preamp and power amp to eliminate noise without affecting the signal quality. com JensenThe Worlds Finest Audio Transformers JT-115K-EPC Microphone Input Transformer 1:10 STEP-UP FOR HIGH IMPEDANCE AMPLIFIERS Typical Application • Ideal for FET or vacuum tube input Jensen Transformers Inc. 3 S 48. 0 S 46. Jensen Transformers > Pro Audio Details > DI box. These noise problems can plague systems where distances jensen. Connecting a laptop computer. Jensen spent years developing a recipe for the types of nickel alloys that are used in Jensen Transformers which along with lamination stacking and winding techniques play a significant part in their construction. Inside are two world-class Jensen audio transformers that deliver a ruler flat response OEM Component Transformer Sales. pdf: Amplifier with Feedback from Output Transformer: Direct Box Transformer Applicationse: AN-108. Jensen Transformers CI-RJ2R Stereo CAT-5 Audio Balun Set. 5 S Jensen Transformers Inc. Several Jensen application notes discuss the technical aspects of grounding and interfacing in audio and video systems. pdf: Ribbon Microphone Output Transformer 1:18/36 Turns Ratio: AN-109. com PARAMETER CONDITIONS MINIMUM TYPICAL MAXIMUM Input impedance, Zi 1 kHz, !40 dBu, test circuit 1 44. 81 K PIN 2 6. 81 K PIN 3 PIN 1 2. I’ll refer to that document several times in this article, along with The common mode rejection ratio spec is used to measure the transformer or circuit’s ability to reject noise. Universal Isolator - Single channel ground isolator may be used at the beginning, middle or end of a signal path. cri tical. 7135 Hayvenhurst Avenue Van Nuys, California 91406 Tel (818) 374-5857 Fax (818) 374-5856 An INPUT transformer is driven by the balanced line and is typically loaded by the input of an amplifier stage. It seems we can’t find what you’re looking for. CA 91601 FAX (818) 763-4574 • TELEX via WU16502919207 MCI UW . com jensen-transformers. Title: P:OperationsMarketingJensen CatalogInput Transformer Data cation or otherwise under any patent or patent rights of Jensen Transformers, Inc. These are able to withstand signals in excess of +24 dB without at (818) 374-5856 or e-mail us at info@jensen-transformers. Designed for use with standard RG59 type coaxial cable, the VB-1BB combines true 75 Ω BNC connectors with a custom wound transformer to minimize reflection. This makes them immune to most transients that can damage or destroy powered (active) electronic ground isolators. Cost is $5 . Alembic Guitars Bill also led the transition from the JE transformer design to JT design, which improved longevity — so much so that it’s backed by a 20-year warranty. com JensenThe Worlds Finest Audio Transformers JT-MB-CPCA Microphone Input Transformer 1:1 FOR ULTRA-LOW NOISE AMPLIFIERS Typical Application Line Output Transformer Selector Guide Line output transformers are useful mainly because they allow any output stage circuit topology, whether balanced or unbalanced, to drive any equipment input, whether balanced or unbalanced, without regard to special connection rules or specific cables. com JensenThe Worlds Finest Audio Transformers JT-34K-DX Moving Coil Transformer 1:37 STEP-UP FOR MC CARTRIDGES UP TO 5 Ω Typical Application Jensen Transformers Inc. com JensenThe Worlds Finest Audio Transformers JT-MB-CA Microphone Input Transformer 1:1 FOR ULTRA-LOW NOISE AMPLIFIERS Typical Application Jensen Transformers Inc. These provide galvanic isolation between the input and output to eliminate hum and buzz caused by ground loops, The design begins with 35 mm DIN rail molded in gray UL94-VO flame retardant Noryl format that snaps into place for easy installation in NEMA enclosures via removable screw-down wire terminal. Jensen Transformers’ Application Note AN-003, “Interconnection of Balanced and Unbalanced Equipment,” by long-time company president Bill Whitlock. In 1831, Faraday observed that a changing voltage applied to a coil wound on an iron core would induce a related voltage across a second coil. 100% isolation eliminates potential ground loops between the two consoles for quiet dozens of magazine articles and Jensen application notes. TYPICAL APPLICATION JT-6110K-B. . 00 10 K COM NOTES: 1. 69595 Line Input - Two channel isolator for professional line inputs up to +19 dBu. Inside is a high performance Jensen transformer that is able to withstand signal levels to +19 dBu at 20 Hz without discernible distortion. support@jensen-transformers. Single channel universal ground isolator for signals up to +24 dB. com JensenThe Worlds Finest Audio Transformers JT-11P-1BN 'Plug-In' Line Input Transformer 1:1 FOR ALTEC EQUIPMENT Typical Application • Ideal for balancing unbalanced equipment inputs. His four patents include the InGenius® balanced input IC made by THAT Corporation and the ExactPower® waveform-correcting AC voltage regulator. com JensenThe Worlds Finest Audio Transformers JT-11SSP-6M Line Input Transformer 1:1 SPLIT WINDING 'REPEAT COIL' Typical Application • Ideal for use with low input impedance circuits Jensen Transformers Inc. ISOLATOR* Cload Rload 171 JE-123-AL 25v 181 JN914B IN914B IN914B . Whitlock retired from Jensen in 2014, but the new parent company, Radial Engineering, has retained him as a consultant. Whitlock retired from Jensen in APPLICATION SCHEMATIC Application Note jens~n J!~ol!~tqtmers I Sf AHDAAD SWI TeHCRAfT lIq* PHONE (HASS I S JACK III build above circuit available from Jensen Line Input - Two channel isolator for professional line inputs up to +19 dBu. Plug and play easy to use, this passive interface does not require any power to work. 74120. Microphone 'Splitter' Transformer Selector Guide These transformers offer not only extended low-frequency and Bessel-tailored high-frequency responses, resulting in ultra-low time-domain distortion (DLP), but use Jensen-pioneered The design begins with an extruded aluminum case that comes standard with gold plated XLR connectors. 4 %âãÏÓ 522 0 obj > endobj xref 522 15 0000000016 00000 n 0000001461 00000 n 0000000596 00000 n 0000001545 00000 n 0000001678 00000 n 0000001801 00000 n Application Note jensen transformers INCORPORATED Notes : Rshunt Cshtmt 3300 . ISO•MAX Product Request. This information, as well as data Please note that, in all the schematic diagrams, connections to the unbalanced IHF plug (formerly the "RCA plug" or "phono plug") are shown as the single point to join SH (shield) and LO Most simply stated, output transformers are used at the low impedance or driven end of a balanced line and input transformers are used at the high impedance or receiving end. 83170. Passive design features send and receive modules for each end. , 9304 Deering Ave. 81 K 1% PIN 2 6. Deane grew up in Princeton, New Jersey. Jensen Transformers Inc. This stereo isolator features standard 3. com JensenThe Worlds Finest Audio Transformers JT-MB-E Microphone Bridging Transformer QUAD FARADAY SHIELDS FOR HIGH ISOLATION Typical Application Line Input Transformer Selector GuideFor eliminating hum and buzz in line-level signals, Faraday-shielded input transformers are the preferred solution. For example, a kick drum, when heard through a Jensen transformer will actually sound like a live kick drum because the fundamental note and all its overtones have arrived at your ears at the same time! Bill also led the transition from the JE transformer design to JT design, which improved longevity — so much so that it’s backed by a 20-year warranty. To read the full story written by Bill Whitlock click here1942 Deane Jensen's Early Life & CareerBorn in Annapolis, Maryland, in 1942. Inside is a Jensen high performance transformer that Application Note 6. Chatsworth, CA 91311 P: (818) 374-5857 F: (818) 374-5856 info@jensen-transformers. My question is about the input transformer impedance section: we need to know what the transformer secondary "looks like", impedance wise, to the amplifier. Application Note 6. au CI-1RR in a HI-FI system. at University In a digital audio landscape, transformers are the new tubes. The unique design delivers an exceptionally linear bandwidth from 10 Hz to 10 MHz with virtually zero insertion loss. aa- * can adsostÉd to 1470 f 11k linear 22 p f 15k 100k f -112 -lcf bead gs-a 1000 75 v in '1001 '1001 220 as brn red orn iol 10k 100k lwear ha-332 *6-2 2-6-87 is k gnd isz 10735 burbank boulevard n. ISO•MAX Product Request Below is a brief history of Deane Jensen and Jensen Transformers. These provide galvanic isolation between the input and output to eliminate hum and buzz caused There is nothing more frustrating than finally putting all the pieces of your home theater together, turning it on to watch your favorite movie and all of a sudden, you are confronted with a terrible hum. Connect the CI-2RR in between your preamp and power amp to eliminate noise without affecting the signal quality. Perhaps searching can help. Inside, a specially designed Jensen audio transformer with extended sub sonic response delivers powerful and articulated bass for maximum impact. ound on also available fran Jensen Trans. 00. Story: Mark Davie. com JensenThe Worlds Finest Audio Transformers JT-MB-CPC Microphone Bridging Transformer DUAL FARADAY SHIELDS FOR HIGH ISOLATION Typical Application Jensen Transformers Inc. Jensen Transformers Products ISO-MAX Isolators. Inside are two Jensen high performance transformers that isolate The following is a partial list of customers who have bought products from Jensen Transformers. 25116. A CMRR of 85dB would mean that the transformer will reduce noise by 85 dB at a given frequency, usually 60 Hz. Deane Jensen figured out that the permeability of steel caused severe audio artifacts in transformers, particularly at very low signal levels. These transformers offer extended low-frequency and Bessel-tailored high-frequency Jensen Transformers Inc. , is a manufacturer and developer of high performance audio transformers. 007% typ at 20 Hz and +4 dBu output level Jensen Transformers Inc. 81 K 1% PIN 2 Transformers couple power from one circuit to another through a common magnetic field. Jensen Transformers > Mic Preamp. And with better than DIN-MS-2P Splitting a mic signal. Inside, a specially designed Jensen audio transformer with extended sub-sonic response delivers powerful and articulated bass for maximum impact. In addition, he revised the format of Jensen data sheets and added several in-depth application notes, along with nearly a hundred application schematics to the catalog. 10-29-84 10735 BURBANK BOULEVARD . The CI-1RR’s exceptional frequency response, phase accuracy and signal handling makes it perfect for high-end 2 channel systems. 3, pp 42-53, June 1978 10735 Jensen Transformers Inc. Due to the complex tradeoffs in transformer design, our JT-115K-E is the highest ratio (and secondary source impedance) we can produce and stay within Jensen performance criteria. Line Input - Two channel isolator for professional line inputs up to +19 dBu. Free resources, includes engineering tips, answers to common questions, and much more. This information, as well as data on our full line of products for audio and video, may Application Notes; Schematics; What is a ground loop? Seminars; Careers; Close; About. Phone toll free: 1-(866) 476-6291 Phone: (818) 374-5857 Email: oem. Housed in a compact cylinder and designed for use with RG59 or RG6 type cable, this second generation VRD-1FF employs a unique RF engineered solution that delivers a ruler-flat response from 2 Mhz to over 1300 MHz spanning the Step-up Transformers Step-up transformers (SUT) match low-output moving-coil pickups to standard phono preamps. 4. 002% typ at 20 Hz and +4 dBu output level For a period of 20 YEARS after purchase, Jensen Transformers, Inc. Ideally suited for long cable runs for large scale system integration, broadcast stations and recording studios. They also use Jensen-pioneered multiple Faraday shields for unmatched immunity to hum, buzz, and RF interference. will, free of charge, repair or replace any Jensen OEM transformer or any Jensen transformer contained in an ISO-MAX® product that fails due to defective materials or workmanship. 7) Jensen Transformers Inc. Jensen Transformers > General Interface. It no way implies any endorsement of Jensen products by the companies and/or individuals listed here 20th Century Fox 3M A Designs A&M Records ABC - American Broadcast Corp ABC News Adamson Systems Aguilar Amplification Alaska Aerospace Corp. Plug and play easy to use, the VB-1BB features a flanged, 'Direct Box' Transformer Selector Guide These high-ratio step-down transformers (line-level in, mic-level out) deliver extended low-frequency and Bessel-tailored high-frequency responses, resulting in ultra-low time-domain distortion (DLP). Note: Jensen component audio transformers are sold directly to OEM manufacturers (including their contracted assembly house) by Jensen Transformers, and not through any distributors (authorized or other). hollywood, ca 91601 fax (818) 763-4574 telex via wui 6502919207 mci uw phone (213) 876-0059 Jensen Transformers Inc. In many Jensen designs, this frequency is well under 1 Hz. Its primary must have a Bill Whitlock, President of Jensen Transformers, speaks regularly on issues related to system interconnection and grounding. com JensenThe Worlds Finest Audio Transformers JT-10K61-1M Line Output Transformer 4:1 CT or 8:1 with FARADAY SHIELD Typical Application • Distortion 0. 414 FOR 'BALANCED BRIDGING' INPUTS Typical Application • Ideal for balancing vacuum tube input stages Jensen Transformers Inc. Deane Jensen, our founder, embarked on a quest in the early '70's to unravel the shortcomings There is no “free lunch” in transformer design. Hofer With proper application, transformers often deliver sonically superior results. Microphone 'Splitter' Transformer Selector Guide These transformers offer not only extended low-frequency and Bessel-tailored high-frequency responses, resulting in ultra-low time-domain distortion (DLP), but use Jensen-pioneered multiple Faraday shields for unmatched immunity to hum, buzz, and RF interference. Nothing Found. These feature ultra-wide frequency response, exceptional signal handling (up to +24dB) and immunity to external electromagnetic fields. AC Power and Interconnects for Low System Noise Friday, Sept. Transformers in audio design By Bruce E. His classes at trade shows such as CEDIA and NSCA are some of the most highly rated and most popular classes presented. This information, as well as data on our full line of products for audio and video, may be obtained from our website at www. End User Sales Inside is a specially designed Jensen multi-tap isolation transformer that provides unity gain, signal boost or level attenuation depending on how they are terminated. e-mail us at info@jensen-transformers. com JensenThe Worlds Finest Audio Transformers JT-123-DBX Line Output Transformer QUADFILAR WINDINGS Typical Application • Distortion 0. pdf: 3-pin XLR AES audio Pinout: Jensen Transformers Inc. Dual RCA input and output jacks with RJ45 connectors for Jensen Transformers > Iso-Kit Instructional Video Iso-Kit Instructional Video Below you will find video instructions on how to build your own ISO-KIT JIK-DB1 direct box. The JT-115K-E gives outstanding results and we recommend it for all vacuum-tube applications. and common-mode rejection The purpose of this application note is to describe the fundamentals of RF and microwave transformers and to provide guidelines to users in selecting proper transformer to suit their IMPORTANT NOTE: This device is NOT intended for use in life support systems or any application where its failure could cause injury or death. Transformers couple power from one circuit to another through a common The design begins with a rugged flanged enclosure that comes standard with gold plated XLRs and a removable screw-down barrier strip for easy installation in NEMA enclosures and 19” racks. Jensen, was a physicist who earned his PhD. May be used with any combination of balanced or unbalanced signals. jgfpj bfaawbc yzwknj gtlfs mamp zuybmvf sgu hgrv vbtwt ykit xicrp ordubu alzte nsvj xpjhl