Home Forums GuitarPCB Build Support Swah-potensiometers

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  • #10615
    Bossebas
    Participant

    Hello. I’m building a swah-kit v4 and have a problem identifying which pot goes where. The building description for v4 does not say and the picture of the v3 board contradict the v4. I even found a picture of the v3 board in the forum that contradicted the building instructions v3 board. My question is witch pot value goes where? P1 obviously in the middle, but then……..?  Best wishes, Bossebas

    #10619
    Cybercow
    Moderator

    This should help  . . . .

    #10620
    Bossebas
    Participant

    Ok, tank’s a lot. 😀

    #11574
    Bossebas
    Participant

    <p style=”text-align: left;”>By The way, what does the trimpot do? Any suggestion how to trim it?????</p>

    #11576
    Cybercow
    Moderator

    Bossebas – the trimpot is there for biasing Q2 & Q3. Here’s the bit from the build document about TR1 . . . .

    “*TR1 – The bias trimmer aka; Sensitivity controls the filter resonance frequency. When Sensitivity is turned fully off the Bias can be used as a sweepable filter.”

    Hope this helps.

    #11577
    Bossebas
    Participant

    Yes, thank you.

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