Home Forums GuitarPCB Build Support plexi plus bias (answered)

This topic contains 4 replies, has 3 voices, and was last updated by  Barry 2 months ago.

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  • #5242

    koutek
    Participant

    Hello I finish to build plexi + tone tweq, how can I set the trimmer of q1 q2 q5 which voltage?  can someone explain me how can I check with multimeter?

     

    thanks

    Angelo

    #5243

    wilkie1
    Moderator

    RTFM.  Read the fabulous Build Document.  Page 2 of the document gives specific instructions on how to bias the transistors.

    #5244

    Barry
    Keymaster

    In case you actually do not know where to put the DMM probes to get voltages read page 8 of the Crash Course Guide found on our Guides Page.

    #5248

    koutek
    Participant

    thanks Barry, should I read approx 5V on drain q1-q2-q5 right?

    #5249

    Barry
    Keymaster

    Yes or half the supply voltage.

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