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Permalink Reply by Tres Seaver on November 10, 2009 at 3:04am

Check out Roosterman's post on the subject, along with the one by Fergus Morris.

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Permalink Reply by David L. on November 10, 2009 at 5:23am

Hi,
If you look through the artec wiring pdf and pick a 2 pick up with a 3 way switch configuration. Wire up one as per diagram and simply excange the output and earth from the preamp for the other pickup in the diagram. I am not sure what effect the preamp will have on a mixed signal (magnetic PUP and disc piezo) as I have only mixed these without a preamp. (I am interested to find out!).
Good luck,
David

Attachments:

• Artec Wiring book.pdf, 2 MB

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Permalink Reply by David L. on November 10, 2009 at 5:51am

Hi, I just checked one of my old CBGs - it has 2 mini humbuckers and piezo disc pick ups going via a 5way switch and the output goes from the 5way to a takamine preamp. Output then goes to a switch for the mini amp and speakers or to the output jack.

On my to do list is to add a bypass for the preamp because it gets through 9v batteries very quickly and once the preamp goes all output stops. This circuit works - but to do something similar would involve chopping into the input from the piezo into the preamp - I am not sure how easy it is to work with an under saddle piezo wires as I use the mongrel piezo discs with big wires rather than the pedigree underbridge piezo. If you could post a photo of the wiring you have it would be helpful. Regards, David

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Permalink Reply by freddy boyd on November 10, 2009 at 8:48am

thanks ted your the man hid some of it figered out but not the switch THANKS FREDDY

Ted Crocker said:

Freddy, the 2 wires coming from the prewired piezo/pre amp assembly are the ones you will remove from the jack. The switch (in this diagram) is a standard Gibson style 3 way. It will allow you to use the piezo/pre amp or the humbucker independently and to also combine both. With a humbucker in the circuit you should also ground the strings, usually through the bridge.

When ordering the parts you should use a 500k audio taper potentiometer for the volume, a 500k linear taper pot for the tone and a .047 microfarad capacitor on the tone pot. I can provide the wiring harness so you only have to cut the jack off your assembly and connect those wires to the switch.

Good luck!

Ted

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