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Altered wiring diagram request for piezo's

Posted by Kirby Amick on September 13, 2015 at 7:50am in Building Secrets, Tips, Advice, Discussion

I think I posted this in a differend topic.. sorry.. still haven't been on the site much

I'd Like to:

wire 2 piezos to 1 potentiometer and an input jack without a 3 way switch..  None of the diagrams show this configuration.

Could anybody point me in the right direction ?

sincerely,

Kirby

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Replies

  • TruckDrivingFool September 21, 2015 at 9:37am

    What you want is a blend pot, I've had good success using a dual line pot (basically two stacked pots) wired as such.

    blend%20pot_zpssmy1nebo.gif

    • The Phrygian Kid > TruckDrivingFool January 11, 2016 at 2:08am
      You should use a 'balance pot' for this. The wiring in your diagram is good (but can be improved with a couple 20c diodes, as it is here when you turn one pickup down the other can follow that path across the other wiper to ground, therefore you've turned both pickups down...) - also be mindful that on a regular stacked pot when you have it in the middle each pickup will be on less than '10' if you follow....
      • Kirby Amick > The Phrygian Kid January 13, 2016 at 11:55pm

        sounds cool but you're over my head now.   I'm a newbie..  this particular thing is going to be a banjo pickup so I actually want both pickups to work together with the volume knob.  

        I'm all for learning though.  I've got it laid out.. I'll post pics when I get around to soldering it up.

        K.

    • Kirby Amick > TruckDrivingFool January 9, 2016 at 11:05pm

      Thanks Truck driving fool.  I will try this next

      • TruckDrivingFool > Kirby Amick January 10, 2016 at 6:56am

        I'll add that I've been using B100k pots for this.

  • Paul Craig September 21, 2015 at 2:28am

    Some people use the switch and place one piezo under the bridge and one somewhere on the soundboard to get different sounds.

    I tried doing two under each side of the bridge on a guitar, but wasn't very happy with it. It's better to move them around to find the right spot/spots before the final placement. My CBG has one piezo on the bass side of the strings right in the middle between the bridge and neck. Started with a 500k volume pot, but changed to a 1meg for a better sound. Not shrill.

  • john mackay September 18, 2015 at 6:05am

    sorry for hijacking this thread but what benefit having 2 piezos?

    • Kirby Amick > john mackay September 20, 2015 at 6:15pm

      the question has been answered accurately but in my case.  I'm a banjo player and I've decided to make my own pickup.  I've tried one piezo but It doesn't pickup all of the frequencies.  So companies like K&K make these with two piezos to place on either end of the banjo bridge. since it does me no good to toggle between the two in this case.  I have no need tor the toggle switch.

      the same would hold true for a guitar.  I think since most CBG's only have 3 or 4 strings.. it's less of an issue but placing them on either end of a wooden bridge could make a big difference

      Many thanks to Blues Frog for the lovely diagram.

      • Blues Frog > Kirby Amick September 20, 2015 at 9:37pm

        A crude drawing at best, but sometimes any visual is better than none.

    • Paul Craig > john mackay September 19, 2015 at 5:09am

      Place in different areas for a mixed sound .

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