Abstract: A transducer for a stringed musical instrument incorporating an electrically conductive ground plane, along with a plurality of piezoelectric transducers and a conductive strip. The ground plane, piezoelectric transducers and conductive strip are secured in an elongated unitary structure with the ground plane and conductive strip disposed on opposite sides of the transducers. A conductive shield is disposed about the unitary structure and electrical leads connect to the ground plane and conductive strip, respectively.

Abstract: A transducer system for a stringed musical instrument having a first electrically conductive member, a plurality of piezoelectric transducers each adapted to be aligned with an instrument string and each having one and another side, and a second electrically conductive member. The first and second electrically conductive members are disposed on opposite sides of the piezoelectric transducers. The electrically conductive members and piezoelectric transducers are arranged in an elongated unitary structure. A conductive shield is disposed about the unitary structure and electrical leads connect to the respective electrically conductive members.

Abstract: A transducer system for a stringed musical instrument having a bridge for supporting a plurality of string saddles, each having a surface for receiving a transducer member of the system. The transducer member is comprised of one or more ceramic crystals supported between conductive strips and encapsulated by an electrically insulating covering. The crystals are responsive to vibrations of the string by way of a spring support insert in the saddle, but the crytals are not directly coupled to the saddle.

Abstract: A transducer for a stringed musical instrument incorporating an electrically conductive base plate along with a piezoelectric crystal secured to the base plate by a conductive adhesive. On the other side of the crystal from the base plate is disposed a spring for biasing the piezoelectric crystal against the bridge at a bridge or bridge/body opening. Electrical leads are employed for coupling signals from the piezoelectric crystal.

Abstract: A transducer for a stringed musical instrument incorporating an electrically conductive ground plane, along with a plurality of piezoelectric transducers and a conductive strip. The ground plane, piezoelectric transducers and conductive strip are secured in an elongated unitary structure with the ground plane and conductive strip disposed on opposite sides of the transducers. A conductive shield is disposed about the unitary structure and electrical leads connect to the ground plane and conductive strip, respectively.

Abstract: A transducer for a stringed musical instrument incorporating an electrically conductive ground plane, along with a plurality of piezoelectric transducers and a conductive strip. The ground plane, piezoelectric transducers and conductive strip are secured in an elongated unitary structure with the ground plane and conductive strip disposed on opposite sides of the transducers. A conductive shield made of paper with a conductive coating is disposed about the unitary structure and electrical leads connect to the ground plane and conductive strip, respectively.

Abstract: A plurality of vibration transducers are mounted on the face of the bridge of a stringed musical instrument, particularly as disclosed herein in connection with a bass violin. The transducers are adapted for mounting without modification to the instrument, preferably with the use of a mounting clip for each transducer. The transducers are preferably of wafer size and shape and are disposed for sensing vibrations at a location on the bridge that is optimum for both the production of a high fidelity output signal and the discouragement of acoustical feedback.