JPS5456411A - Artificial soundboard of electric piano - Google Patents

Artificial soundboard of electric piano

Info

Publication number
JPS5456411A
JPS5456411A JP12282877A JP12282877A JPS5456411A JP S5456411 A JPS5456411 A JP S5456411A JP 12282877 A JP12282877 A JP 12282877A JP 12282877 A JP12282877 A JP 12282877A JP S5456411 A JPS5456411 A JP S5456411A
Authority
JP
Japan
Prior art keywords
lead wires
piezoelectric element
disposed
resistor
soundboard
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12282877A
Other languages
Japanese (ja)
Inventor
Shinji Katayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP12282877A priority Critical patent/JPS5456411A/en
Publication of JPS5456411A publication Critical patent/JPS5456411A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrophonic Musical Instruments (AREA)

Abstract

PURPOSE: To readily improve S/N disposing a string support member on the top of a printed wiring board provided in the opening part of the frame and reducing the lead wires between piezoelectric element and signal processing circuit.
CONSTITUTION: An artifiical sounboard 20 which is disposed in the opening part of a frame 1 through a vibration isolating material 3 is formed by a printed wiring board 21 composed of glass-epoxy base base material and a string support member 6 is bonded to the approximate central part of the top thereof. A piezoelectric element 8 is secured to the back and a capacitor 22, resistor 24, mixing resistor 24, earth resistor 25 forming a specified signal processing circuit A are connected and disposed by means of copper foils 26, the output ends thereof are connected to an amplifier via lead wires 27. This enables the piezoelectric element 8 to be disposed in adjacency to the soundboard 20 itself on the circuit A and its lead wires to be minimized in length. Further the lead wires comprise copper foils of low impedances and therefore the entry of noise is considerably reduced. Thereby, S/N may be readily improved
COPYRIGHT: (C)1979,JPO&Japio
JP12282877A 1977-10-13 1977-10-13 Artificial soundboard of electric piano Pending JPS5456411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12282877A JPS5456411A (en) 1977-10-13 1977-10-13 Artificial soundboard of electric piano

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12282877A JPS5456411A (en) 1977-10-13 1977-10-13 Artificial soundboard of electric piano

Publications (1)

Publication Number Publication Date
JPS5456411A true JPS5456411A (en) 1979-05-07

Family

ID=14845636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12282877A Pending JPS5456411A (en) 1977-10-13 1977-10-13 Artificial soundboard of electric piano

Country Status (1)

Country Link
JP (1) JPS5456411A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5739096U (en) * 1980-08-14 1982-03-02

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5739096U (en) * 1980-08-14 1982-03-02

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