Your Source for DIY Pedal PCBs and NostalgiTone! GuitarPCB Forum GuitarPCB Build Support Adjusting bias on Q1 on “After Blaster”

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  • #22776
    Steve
    Moderator

    Is there an “optimum” voltage I am shooting for or is it a more of a “what sort of tone you are looking for”?

    Thanks, in advance!
    -=Steve

    #22777
    Barry
    Keymaster

    Anything from 4.5v to 6.5 v is great.

    The higher the voltage the more aggressive to a point within that range I feel.

    #22778
    Billy
    Moderator

    It’s more what you’d want Steve

    As you’ll know from the build doc you can also use a 2N5457 for a grittier tone adjusting the drain resistance

    I’d start at the usual 5v on the drain and go from there

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