Current Feedback Amplifier by Kevin Gilmore

Discussion in 'DIY' started by MASantos, Nov 26, 2020.

  1. MASantos

    MASantos Rando

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    This is one of Kevin's latest designs, a spiritual sucessor to the mighty Dynahi, with improved performance.

    Topology: Diamond transistor input set, used as a voltage to current converter, a pair of Wilson current mirrors with input and output cascade as the VAS and a triple darlington output stage.

    Built according to the latest BOM and schematic:
    -24VDC Golden Reference power supply, bias 250mA on the output transistors
    - Toroidy 100VA 230V audio grade power transformer
    - TDK 2CP601 volume potentiometer
    - Neutrik connectors
    - Aluminum chassis with side heatsink

    [​IMG]

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  2. Pancakes

    Pancakes Friend

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    What is the name of this amp? Are there a bom and circuit boards available somewhere (I'm a DIY whore lol)?
     
  3. Cspirou

    Cspirou They call me Sparky

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    I think it's the CFA3. There's Gerber files somewhere
     
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  4. MASantos

    MASantos Rando

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    This is the cfa2 ( single ended)
    The cfa3 is the balanced version of this.
     
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