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        LL1538XL Microphone Input Transformer

        Lundahl LL1538XL Microphone Input Transformer

        €104,95

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        Lundahl LL1538XL Microphone Input Transformer

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        Brand: Lundahl
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        LL1538XL Microphone Input Transformer
        € 86,74€ 104,95 Out of stock
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        LL1538XL Microphone Input Transformer

        Product description Lundahl LL1538XL Microphone Input Transformer

        The Lundahl LL1538XL is a high-performance microphone input transformer with a larger mu-metal core for increased level capability, electrostatic shielding between windings, and excellent frequency response.

         

        Highlights of the Lundahl LL1538XL

        • High-performance microphone input transformer with high-permeability mu-metal core
        • Core is about 45% larger than the LL1538 for higher level capability
        • Two three-section coils for very low leakage inductance
        • Primary and secondary windings separated by electrostatic shields
        • Encapsulated in a mu-metal case for magnetic shielding
        • 10 Hz to 80 kHz frequency response within +/- 0.3 dB

         

        Product details Lundahl LL1538XL

        Lundahl LL1538XL Microphone Input Transformer

         

        The Lundahl LL1538XL is designed for demanding microphone input stages where low noise, shielding, and wide bandwidth are essential. As part of a professional selection of audio components, it uses a high-permeability mu-metal core and two three-section coils to keep leakage inductance very low, supporting an excellent frequency response.

         

        Compared with the LL1538, the LL1538XL uses a core that is about 45% larger, giving it greater level capability. With the primaries connected in parallel and a 200 ohm source impedance, distortion is 0.2% at +3 dBU primary level at 50 Hz, and 1% at +13 dBU primary level at 50 Hz.

         

        The transformer has a turns ratio of 1 + 1 : 5 and does not require termination for best square-wave response in a 1:5 connection with 200 ohm source impedance. Key electric measurements include a self-resonance point above 120 kHz, 4 kV isolation between windings, and 2 kV isolation between windings and shield.

         

        For practical PCB integration, the LL1538XL measures 38 x 24 x 20.5 mm above the PCB and weighs 65 g. It has 5.08 mm pin spacing, 27.94 mm row spacing, and a recommended PCB hole diameter of 1.5 mm. Each primary has a static resistance of 61 ohm, while each secondary has a static resistance of 975 ohm.

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        Specifications

        Article number
        LL1538XL
        EAN
        9502367867148

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        LL1538XL Microphone Input Transformer
        € 86,74
        € 104,95
        LL1538XL Microphone Input Transformer
        Out of stock
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