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        LL1664-60 Output Transformer for Tube Amplifiers 60mA

        Lundahl LL1664-60 Output Transformer for Tube Amplifiers 60mA

        €179,95

        2 In stock

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        Lundahl LL1664-60 Output Transformer for Tube Amplifiers 60mA

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        Brand: Lundahl
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        LL1664-60 Output Transformer for Tube Amplifiers 60mA
        € 148,72€ 179,95 2 In stock
        € 179,95
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        LL1664-60 Output Transformer for Tube Amplifiers 60mA

        Product description Lundahl LL1664-60 Output Transformer

        The Lundahl LL1664-60 is a 60 mA version of the LL1664 tube amplifier output transformer, built around a four-section dual-coil C-core for a 3 k:8 ohms impedance ratio.

         

        Highlights of the Lundahl LL1664-60

        • Tube amplifier output transformer for 3 k:8 ohms impedance matching
        • 60 mA single-ended version of the LL1664 series
        • Four-section dual-coil C-core construction
        • High internal isolation with foil between each copper layer
        • Turns ratio of 9.6 + 9.6:1 or (3.2+6.4)+(3.2+6.4):1
        • 1.35 kg transformer with 4 kV winding-to-winding isolation

         

        Product details Lundahl LL1664-60

        Lundahl LL1664-60 Tube Amplifier Output Transformer 3 k:8 Ohms 60 mA

         

        The Lundahl LL1664-60 is designed for tube amplifiers requiring a 3 k:8 ohms output transformer. Its four-sectioned dual-coil layout uses a Lundahl audio C-core and supports both 9.6 + 9.6:1 and split (3.2+6.4)+(3.2+6.4):1 turns-ratio configurations.

         

        For robust electrical separation, the LL1664-60 uses Lundahl’s high internal isolation technique, with isolation foil between each copper layer. Isolation is rated at 4 kV between windings and 2 kV between windings and core, making it a serious amplifier accessory for demanding valve amplifier projects.

         

        Key electrical values include 74 ohms static resistance for each primary, 0.5 ohms static resistance for the secondary, and 8 mH primary leakage inductance with the primaries in series. The 60 mA version supports a maximum primary signal of 180 Vrms at 30 Hz and up to 10 W output power into an 8 ohms speaker load at 30 Hz.

         

        The LL1664-60 is suitable for single-ended output stages with a 3 k primary impedance at an 8 ohms load. The winding arrangement also includes 33% ultra-linear taps for push-pull use within the LL1664 family, giving builders flexibility in audio components and tube output-stage design. The transformer weighs 1.35 kg and uses four M4 mounting holes for secure installation.

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        Specifications

        Article number
        LL1664-60
        EAN
        9504961712220
        Transformer Type
        Tube amplifier output transformer
        Primary Voltage
        180 V
        Primary Impedance
        3000 Ω
        Secundary Impedance
        8 Ω
        Power Handling
        10 W
        Core Type
        C-core
        Inductance
        29 H
        Turns Ratio
        9.6 + 9.6 : 1 or (3.2+6.4)+(3.2+6.4) : 1
        # Mounting holes
        4
        Dimensions (L x B x H)
        95 x 70 x 75 mm

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        LL1664-60 Output Transformer for Tube Amplifiers 60mA
        € 148,72
        € 179,95
        LL1664-60 Output Transformer for Tube Amplifiers 60mA
        2 In stock
        Add to cart
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