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        LL1935 Microphone Direct Input Transformer

        Lundahl LL1935 Microphone Direct Input Transformer

        €83,95

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        Lundahl LL1935 Microphone Direct Input Transformer

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        Brand: Lundahl
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        LL1935 Microphone Direct Input Transformer
        € 69,38€ 83,95 Out of stock
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        LL1935 Microphone Direct Input Transformer

        Product description Lundahl LL1935 Microphone DI Transformer

        The Lundahl LL1935 is a compact DI transformer designed to match high impedance guitar pickups to low impedance microphone preamp inputs, while also serving as a high quality 1:10 microphone input transformer.

         

        Highlights of the Lundahl LL1935

        • Designed for DI applications and 1:10 microphone input use
        • Turns ratio of 1 + 1 : 5 + 5
        • High permeability mu-metal core with mu-metal case shielding
        • Electrostatic shield between primary and secondary windings
        • Low capacitance winding technique for the high impedance windings
        • Compact PCB-mount format, 38 x 23 x 16 mm and 46 g

         

        Product details Lundahl LL1935

        Lundahl LL1935 Microphone Direct Input Transformer

         

        The Lundahl LL1935 is built for Direct Input applications where a high impedance source, such as a guitar pickup, needs to feed a low impedance microphone preamp input. As a precision audio component, it is also well suited to 1:10 microphone input applications, giving builders a flexible transformer for compact DI and microphone front-end designs.

         

        Internally, the LL1935 uses two coils, each with one primary and one secondary winding separated by an electrostatic shield. The high impedance windings use a special low capacitance winding technique, while the high permeability mu-metal core and encapsulated mu-metal case provide effective magnetic shielding. For best performance, the high impedance side, marked 5 + 5, should be connected in series.

         

        Performance is specified across a wide audio bandwidth. In 10:1 use with a 100 kΩ source and open secondary, the response is 20 Hz to 20 kHz at +0 / -3 dB. With a 1 kΩ load, the 10:1 response extends from 10 Hz to 45 kHz at +0 / -2 dB. In 1:10 operation with a 200 Ω source and open secondary, the response is 10 Hz to 80 kHz within ±1 dB, with no self-resonance detected in the stated configurations.

         

        The transformer is designed for PCB mounting, with 5.08 mm pin spacing, 27.94 mm row spacing, a recommended PCB hole diameter of 1.5 mm, and a weight of 46 g. Static resistance is 650 Ω for each primary and 17 Ω for each secondary. For verification and electric measurements, the LL1935 also provides clear isolation ratings of 4 kV between windings and 2 kV between windings and shield.

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        Specifications

        Article number
        LL1935
        EAN
        9505784851547

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        LL1935 Microphone Direct Input Transformer
        € 69,38
        € 83,95
        LL1935 Microphone Direct Input Transformer
        Out of stock
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