![]() ![]() It measured right around 9V on my meter and fully powered a pedal when connected. My first inclination was to test the battery. The Piezo volume control also does nothing. ![]() I get no sound from the Piezo pickup when the Mag / Piezo three-way selector switch is in the middle or back position. The magnetic pickups, magnetic volume and tone controls, magnetic pickup selector switch, and the mono / stereo button all function as they should. I'm looking for a bit of troubleshooting advice from those who are experienced with these instruments before I start poking around inside. I've been teching for a good amount of time but this is the first encounter I've had with a Parker or a guitar equipped with a Piezo. That’s why we are here to help! Call or visit the Denver Folklore Center and let us help you pick the perfect pickup for your playing needs.A NiteFly came across my bench this afternoon with a request to fix a Piezo pickup that's not making any sound. There is a lot of variance in each group of pickups, so choosing the right one can be confusing. The magnetic pickup is ideal for a player looking to play in a louder ensemble – like a rock band or anything with a full drum kit and electric players. Different magnetic pickups will use a variety of components to tailor the sound, most notably using different types and sizes of magnets, as well as variances to the amount of copper wire wrapping. ![]() This makes the construction of the pickup integral to the sound being generated. Rather than sampling the vibrations of the wood, this pickup samples the way the strings move through a magnetic field. Magnetic pickups have a sound unto themselves and is ubiquitous in the world of electric guitars. These vibrations create fluctuations in the output signal of the pickup which creates the sound. Magnetic pickups work on a different principle than the piezo and microphone in that they create a magnetic field for the strings of an instrument vibrate within. They also tend to be pricey because of their more sophisticated electronic components and require a pre-amp built into unit to work. They are active systems and almost always come with the ability to control the volume and tone of the instrument on board. Microphones are ideal for solo performance because they sound full and true to the actual acoustic tone of the guitar (also because they pick surrounding sounds, so they can be temperamental with other instruments). These are the same type of microphones you find in a recording studio but smaller to fit inside different types of instruments. They work similarly to the human ear drum in that sound pressure waves will move a thin conductive membrane across an electrified backplate to turn the sound waves into an electrical signal. These transducers offer the closest to the true sound of an instrument. Microphones convert the physical movement of air into an electrical signal. Any changes to sound and volume must be made on the amp the instrument is plugged into. Active pickups provide a stronger signal coming out of the guitar and often have volume and tone controls built in, while passive pickups are more of a plug and play style. Piezo pickups can come as “active” (requires a battery to work) or “passive” (doesn’t require a battery to work). These can sound much better for solo playing due to the lusher tonal quality. The other common type of piezo pickups is what is called a bridge plate pickup which adhere to the bridge plate inside of a guitar. This style of pickup works well for a wide range of applications, including playing in a group setting where there are many instruments and frequencies that need to blend. They are often what are called “under-saddle” pickups and create a crisp/clear tone that articulates the sound of the strings. These pickups convert the physical movement of a solid object, such as the vibrations of a guitars top wood, into an electrical signal. Piezoelectric (or piezo) are the most common type of pickup for acoustic instruments. ![]()
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