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        LL1679-PP Output Transformer for Tube Amplifiers Push-Pull

        Lundahl LL1679-PP Output Transformer for Tube Amplifiers Push-Pull

        €289,95

        2 In stock

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        Lundahl LL1679-PP Output Transformer for Tube Amplifiers Push-Pull

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        Brand: Lundahl
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        LL1679-PP Output Transformer for Tube Amplifiers Push-Pull
        € 239,63€ 289,95 2 In stock
        € 289,95
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        LL1679-PP Output Transformer for Tube Amplifiers Push-Pull

        Product description Lundahl LL1679-PP Output Transformer

        The Lundahl LL1679-PP is a push-pull output transformer for tube amplifiers, built with a special audio C-core, highly sectioned windings and a wide 10 Hz to 70 kHz frequency response.

         

        Highlights of the Lundahl LL1679-PP

        • Push-pull output transformer for tube amplifier output stages
        • Highly sectioned, harmonically sized windings for very low leakage inductance
        • Low-capacitance coil winding technique for wide frequency response
        • Primary winding includes taps for 36% UL connection
        • Special Lundahl audio C-core, unpotted open-frame construction
        • 10 Hz to 70 kHz frequency response at +0/-3 dB

         

        Product details Lundahl LL1679-PP

        Lundahl LL1679-PP Output Transformer for Tube Amplifiers Push-Pull

         

        The Lundahl LL1679-PP is designed for tube amplifier output stages where wide bandwidth, stable performance and careful winding geometry are required. As a high-quality transformer for demanding audio components, it uses highly sectioned windings with harmonically sized sections to minimize leakage inductance, combined with a low-capacitance winding technique for extended high-frequency performance.

         

        For push-pull amplifiers, the LL1679-PP supports a maximum primary signal voltage of 670 V RMS at 30 Hz and offers primary load impedance options of 9.7 kΩ, 4.5 kΩ and 2.6 kΩ depending on the secondary connection. Maximum push-pull power at 30 Hz is 45 W, 105 W or 188 W respectively, with transformer power loss of 0.2 dB, 0.4 dB or 0.6 dB.

         

        The LL1679-PP version uses a 25 μ core air gap and provides 150 H primary inductance. The primary winding can be tapped for 36% ultra-linear operation, giving builders flexibility in tube output stage design. The transformer has a turns ratio of 22 + 12.5 + 22 + 12.5 : 2 + 1 + 2 + 1, 8 mH primary leakage inductance and 160 Ω primary static resistance with all primary sections in series.

         

        This unpotted open-frame transformer is intended for mounting inside an amplifier housing, making it suitable for carefully planned tube amplifier builds and related amplifier accessories work. It weighs 2.5 kg, uses a 5.08 mm pin spacing module and includes four M4 mounting holes. Isolation is rated at 3 kV between primary and secondary windings and 1.5 kV between windings and core.

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        Specifications

        Article number
        LL1679-PP
        EAN
        9508448149240
        Transformer Type
        Output transformer for tube amplifiers, push-pull
        Primary Voltage
        670 V
        Secundary Voltage
        19-58 V
        Primary Impedance
        9.7 / 4.5 / 2.6 kΩ
        Secundary Impedance
        4 / 8 / 16 Ω
        Power Handling
        45 / 105 / 188 Watt
        Core Type
        C-core
        Inductance
        150 H
        Max Output Voltage
        58 V
        Turns Ratio
        22 + 12.5 + 22 + 12.5 : 2 + 1 + 2 + 1
        Frequency Response
        10-70000 Hz
        # Mounting holes
        4
        Dimensions (L x B x H)
        118 x 85 x 78 mm

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        LL1679-PP Output Transformer for Tube Amplifiers Push-Pull
        € 239,63
        € 289,95
        LL1679-PP Output Transformer for Tube Amplifiers Push-Pull
        2 In stock
        Add to cart
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