摘要:
A standard electronic module for an electric stringed musical instrument is provided. The standard electronic module is mounted within the main body of the electric stringed musical instrument in a module cavity in the back of the electric stringed musical instrument. The standard electronic module comprises two printed circuit boards, a main printed circuit board and a connector circuit board, wherein the standard electronic module provides rapid exchange of the main printed circuit board without changing the wiring harness of the electric stringed musical instrument, which is directly connected to the connector printed circuit board.
摘要:
A tremolo mechanism having a novel roller mounted beneath a tensioned string of a stringed musical instrument is described. During oscillatory movement, the tensioned string exerts both a static and a vibratory force on the roller. The roller rotates in relation to the tensioned string such that the static force is generally greater than any component of the vibratory force. The novel roller may be a saddle roller with a saddle block having two opposing block walls which form a roller cavity. The block walls each have a roller bore aligned along a roller axis. The saddle roller includes a cylindrical body attached to a roller pin and a circumferential seat receiving a tension string. The roller pin is rotatably disposed such that the saddle roller is in the saddle block cavity. The roller axis extends obliquely to define an oblique roller angle.
摘要:
A guitar is constructed to have a hollow body and to have a top member that has a pickup mounting portion integrally formed therein. A slot (20) is cut into the pickup support area, and a pickup 22 is received in the slot (20). Guitar strings are mounted on the guitar and stretched across the pickup (22) which functions as a bridge to define the lower endpoint of the free length of the guitar strings.
摘要:
An audio power amplifier (200) including a rail voltage detection circuit (202, 204, 206, 208) connected to a feedback generator (212) and a rail voltage (106, 110), the detection circuit (202, 204, 206, 208) is adapted to detect an overvoltage or undervoltage condition and control (214) the feedback signal (FS) to a regulated switching power supply to adjust the rail voltage (106, 110). Additional protection is provided through thermal stress detection and output fault detection to control (214) the feedback signal (FS) and protect the audio power amplifier (200).
摘要:
An audio power amplifier (200) including a rail voltage detection circuit (202, 204, 206, 208) connected to a feedback generator (212) and a rail voltage (106, 110), the detection circuit (202, 204, 206, 208) is adapted to detect an overvoltage or undervoltage condition and control (214) the feedback signal (FS) to a regulated switching power supply to adjust the rail voltage (106, 110). Additional protection is provided through thermal stress detection and output fault detection to control (214) the feedback signal (FS) and protect the audio power amplifier (200).
摘要:
A support for defining an end point of the vibrating portion of the strings of a stringed musical instrument comprises a base (12) having a slot (14) with walls (16) which converge to an apex line (18). At least one rocker (20) has walls (22) which converge to a knife edge (24) complementary to the apex line (18), where the angle between the walls (16) of the base (12) is larger than the angle between the walls (22) of the rocker (20) to allow the rocker (20) to rock in the slot (14) while the knife edge (24) engages the apex line (18). The rocker (20) has an arc-shaped surface (30) centered with the knife edge (24) for contacting at least one of the strings (not shown) and moving with the string in a direction along the length of the string while maintaining the end point of the vibrating portion of the string at a constant position relative to the base (12) in the direction along the length of the string.
摘要:
A bifilar pickup for an electrical stringed musical instrument is provided. The bifilar pickup comprises a single coil wherein the coil is formed with two closely spaced but electrically isolated parallel wound wires. A guitar in combination with the bifilar pickup is additionally provided.
摘要:
A bifilar pickup for an electrical stringed instrument is provided. The bifilar pickup comprises a dual coil wherein at least one coil is formed with two closely spaced bifilar parallel wound wires. A guitar in combination with the pickup unit is additionally provided.