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        LL1623-90 Output Transformer for Tube Amplifiers 90mA

        Lundahl LL1623-90 Output Transformer for Tube Amplifiers 90mA

        €279,95

        2 In stock

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        Lundahl LL1623-90 Output Transformer for Tube Amplifiers 90mA

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        Brand: Lundahl
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        LL1623-90 Output Transformer for Tube Amplifiers 90mA
        € 231,36€ 279,95 2 In stock
        € 279,95
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        LL1623-90 Output Transformer for Tube Amplifiers 90mA

        Product description Lundahl LL1623-90 Output Transformer

        The Lundahl LL1623-90 is a high-quality open-frame output transformer for tube amplifiers, designed for 90 mA single-ended operation with wide bandwidth and low leakage inductance.

         

        Highlights of the Lundahl LL1623-90

        • Output transformer for tube amplifiers with 90 mA recommended DC operating point
        • Special Lundahl audio C-core with air gap for single-ended tube output stages
        • Highly sectioned winding structure for minimum leakage inductance
        • Frequency response example of 7 Hz to 25 kHz ±0.5 dB in LL1623 / 90 mA connection alt. C

         

        Product details Lundahl LL1623-90

        Lundahl LL1623-90 Output Transformer for Tube Amplifiers 90 mA

         

        The Lundahl LL1623-90 is built for tube amplifiers and uses the LL1623 winding and core platform with a 90 mA single-ended air gap. Its special audio C-core is designed to handle the required DC current while maintaining the headroom needed for the audio signal.

         

        A highly sectioned winding layout with harmonically sized sections helps minimize leakage inductance. Combined with Lundahl’s low-capacitance coil winding technique, this makes the LL1623-90 suitable for wide-bandwidth audio components where clean transformer performance is essential.

         

        For the LL1623 / 90 mA version in connection alternative C, with 650 ohms source resistance and an 8 ohm load, the transformer achieves a frequency response of 7 Hz to 25 kHz ±0.5 dB. Phase shift is 2° at 20 Hz and 13.5° at 20 kHz, with a group delay of 2.2 μs at 20 kHz.

         

        The LL1623-90 has an open-frame construction for mounting inside an amplifier housing. It weighs 2.5 kg, uses a 5.08 mm pin spacing module, and provides 3 kV isolation between primary and secondary windings and 1.5 kV isolation between windings and core.

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        Specifications

        Article number
        LL1623-90
        EAN
        9507377672720
        Transformer Type
        Single-ended tube amplifier output transformer
        Primary Voltage
        270 V
        Secundary Voltage
        5/10/15/20/30/40
        Primary Impedance
        5.6 / 3.0 / 1.6 kΩ
        Secundary Impedance
        4/8/16 Ω
        Power Handling
        25 Watt
        Core Type
        C-core
        Inductance
        30 H
        Max Output Voltage
        40
        Turns Ratio
        4 x 13.4 : 8 x 1
        # Mounting holes
        4
        Dimensions (L x B x H)
        118 x 78 mm

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        LL1623-90 Output Transformer for Tube Amplifiers 90mA
        € 231,36
        € 279,95
        LL1623-90 Output Transformer for Tube Amplifiers 90mA
        2 In stock
        Add to cart
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