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    RE-254 + RTP-35 Ribbon Microphone Basic DIY Kit

    RE-254 + RTP-35 Ribbon Microphone Basic DIY Kit

    125.00€
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    RM-6 Ribbon Microphone Full DIY Kit

    RM-6 Ribbon Microphone Full DIY Kit

    279.00€
    RM-6 Premium DIY Ribbon Microphone kit. Detailed Illustrated Assembly Manual: RM-5/RM-6 Ribbon Mic K...
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    RM-5 Ribbon Microphone Full DIY Kit

    RM-5 Ribbon Microphone Full DIY Kit

    199.00€
    Make Your Own Premium Quality DIY Ribbon Microphone! Detailed Illustrated Assembly Manual: RM-5 Ribb...
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    RM-5BS Ribbon Microphone Body for DIY Mic Project

    RM-5BS Ribbon Microphone Body for DIY Mic Project

    85.00€
    Stainless Steel Body for RE-254/RE-323 Ribbon Microphone Motors. RM-5BS is a premium quality body de...
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    RTP-35 Ribbon Microphone Output Transformer

    RTP-35 Ribbon Microphone Output Transformer

    59.00€
    Toroidal Output Transformer for Ribbon Microphones. Transformer is the second most important part ...
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    RTP-28 Ribbon Microphone Output Transformer

    RTP-28 Ribbon Microphone Output Transformer

    69.00€
    Toroidal Output Transformer for Ribbon Microphones. Transformer is the second most important part ...
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    Pro Audio DIY
    Bumblebee Bb-D1 J-Fet Active DI Kit

    Bumblebee Bb-D1 J-Fet Active DI Kit

    129.00€
    Make Your Own Transformer Balanced J-Fet Active DI! Detailed Illustrated Assembly Manual: Bumblebee ...
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DIY Pro Audio

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  • Published : 10-Dec-2014
  • Author: artur.fisher
  • Category: DIY Pro Audio
  • Comments: 70

D1 Transformer Coupled Active DI Prototype

Today I've assembled the first prototype of a Transformer Coupled Active DI that will be available as a kit soon. It is a simple, yet very good sounding classical design with a j-fet input stage chosen for its virtually unlimited input impedance (the input impedance of the device is set to 10Mohms) and a bipolar buffer/transformer driver. The transformer is my own original design developed and made particularly for this Active DI project...

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