Photoelectric control transposer for electric guitar
A technology of photoelectric control and pitch changer, applied in the direction of electro-acoustic musical instruments, instruments, etc., can solve the problems of difficulty in electric guitar, affect the performance of electric guitar, inconvenience of electric guitar, etc., and achieve the effect of enhanced performance effect, simple operation and convenient use.
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[0020] The embodiment of the present invention will be further described below in conjunction with the accompanying drawings, including an audio frequency converter circuit and an audio frequency converter control circuit. The audio frequency converter control circuit includes a control encoding circuit and a photoelectric induction control module connected to the control encoding circuit. The photoelectric induction control input module includes 3 infrared emitting diodes D1, D2, D3 and configured infrared emitting driving circuit, and the infrared emitting driving circuit is composed of 3 triodes Q1, Q2, Q3 respectively connected with infrared emitting diodes D1, D2, D3 is connected to form, wherein the collectors of each triode are respectively connected to each infrared emitting diode D1, D2, D3 through resistors R3, R5, R7, the anodes of each infrared emitting diode are connected to the power supply, and the bases of each triode are respectively connected to each other thro...
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