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How to Build and Play Cigar Box Guitars and other Homemade Instruments
You can use either 250KOhm, 500KOhm or 1000KOhm (1MOhm) audio-taper potentiometers (pots) for disk piezo volume controls in cigar box guitars. C. B. Gitty recommends the 500KOhm, but it is always good to do some experimenting to discover your own preferences.
To learn much more about wiring cigar box guitars with piezos and magnetic pickups, check out the related category in our knowledgebase!
Rod piezos are not as sensitive (or “hot”) as disk piezos. They work best when built into a cigar box guitar (or store-bought guitar) bridge, with the saddle pressing directly down on them so they get as much direct pressure and vibration from the strings as possible.
For much more info about rod piezos, be sure to check out this article in our knowledgebase.