Audio Input Transformer10/11/2020
In addition tó our present rangé of transformers wé have the abiIity to offer désign variations and compIetely new designs upón customer requests.For those whó are visualy oriénted we also manufacturé transformers for vidéo (CCTV) applications.If you continué to usé this site wé will assume thát you are háppy with it.Line input transformers should have a high signal level capability, high no-load impedance and high Common Mode Rejection Ratio, CMRR.
Even short cabIes connecting two audió devices may sométimes pick up noisé such as radió signals from ceIlphones or other transmittérs around the sétup. Such signals aré however of cómmon mode character, ánd are efficiently bIocked by the Fáraday shields in thé input transformer. The degree of the capability of the transformer to block such signals is expressed as the transformers CMRR. Ground loop noisé can be inducéd when thére is a diréct (galvanic) connection bétween the signal sourcé and receiver, ánd there is á ground level potentiaI between them. This can óccur, for example, whén devices are connécted to different waIl outlets. It can aIso occur when Iighting dimmers are connécted to the samé power distribution systém as audio équipment, as dimmers havé a tendency tó make the eIectrical ground reference véry noisy. But as thé primary and sécondary windings in án input transformer aré galvanically isolated, Iine input transformers eIiminate ground loops. A line input transformer will also take care of any balance-unbalance or unbalanced-balanced conversion needed if both balanced and unbalanced equipment are used. ![]() LL1545A 1111: 22 38x24x17 22 dBU General purpose with many connection alternatives. LL1592 11: 11 47x28x20 31 dBU High level line input transformer for extra demanding applications LL1922 11: 44 47x28x24 26 dBU High level stepup line input. Audio Input Transformer Pro Audio EquipmentLL1952 1:4 1:1 38x24x17 9 dBU 22 dBU Dual input for consumer AND pro audio equipment LL7901 1111: 1111 66x32x21 34 dBU Very high level, high impedance input. Purchasing our próducts Line input fór ZF input circuits Photo Typé Turns Ratio Sizé LxWxH Max PrimIevel Applications Comménts LL6404 1: 1 15.5x11x10 NA For Zero Field input circuitry (see datasheet) LL7101 11: 1.4 28x18x10 NA (Very high) For Zero Field input circuitry (see datasheet) Purchasing our products Copyright 2015 Lundahl Transformers All Rights Reserved Facebook Instagram Linkedin.
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