Two good ways to do this is with a volume knob for piezo and one vol for the mag, the tone knob is your psycho knob (QDD). The other option is a three way switch. Your piezo can be a disc mount, a rod or cable piezo in the bridge. There are advantages and disadvantages to both setups
below is the QDD there is an Out - to jack, a B+ - for battery, In - from the input mag/piezo,
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Robbie,
Two good ways to do this is with a volume knob for piezo and one vol for the mag, the tone knob is your psycho knob (QDD). The other option is a three way switch. Your piezo can be a disc mount, a rod or cable piezo in the bridge. There are advantages and disadvantages to both setups
below is the QDD there is an Out - to jack, a B+ - for battery, In - from the input mag/piezo,
Gnd - for ground
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