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Problems with ground (Fuzz tone)

Discussion in 'General Electronics Discussion' started by Alichino1, Jul 7, 2013.

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  1. Alichino1

    Alichino1

    1
    0
    Jul 7, 2013
    Hi,

    I'm trying to build a guitar fuzz, and have encountered a problem.
    On the schematics several components are connected to ground (the whole bottom-left serves as "virtual" ground). I'm trying to build this project on a breadboard and I have no idea how and where to connect these grounded components, for example R11 or R2.
    Can anyone help with this?

    Alichino
     

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  2. Harald Kapp

    Harald Kapp Moderator Moderator

    11,513
    2,651
    Nov 17, 2011
    Ground is the center connection of R12 and R13. This is a virtual ground, since its true potential varies with load (only buffered by C8...C11). If the circuit consumes little power, as I assume, this will be o.k. for that purpose. Connect all ground connections to this point. Since on a breadboard you can't use a ower plane (on a pcb you could), use separate wires for each ground connection and form a star connection at C8...C11)
     
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