JPS6093392U - Speaker switching circuit - Google Patents

Speaker switching circuit

Info

Publication number
JPS6093392U
JPS6093392U JP18599483U JP18599483U JPS6093392U JP S6093392 U JPS6093392 U JP S6093392U JP 18599483 U JP18599483 U JP 18599483U JP 18599483 U JP18599483 U JP 18599483U JP S6093392 U JPS6093392 U JP S6093392U
Authority
JP
Japan
Prior art keywords
switching circuit
speaker switching
speaker
power amplifier
protecting
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
JP18599483U
Other languages
Japanese (ja)
Inventor
吉原　正宏
Original Assignee
パイオニア株式会社
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 パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP18599483U priority Critical patent/JPS6093392U/en
Publication of JPS6093392U publication Critical patent/JPS6093392U/en
Pending legal-status Critical Current

Links

Landscapes

  • Headphones And Earphones (AREA)
  • Amplifiers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のスピーカ切換回路を示す回路図、第２図
はこの考案のスピーカ切換回路の一実施例を示す回路図
、第３図はこの考案のスピーカ切換回路の他の実施例の
要部の回路図である。 １・・・・・・電力増幅器、２・・・・・・保護回路、
３・・・・・・スピーカ出力、４・・・・・・ヘッドホ
ンジャック、ＲＹ・・・・・・保護リレー、ＲＹ　ｌ・
・・・・・接点、Ａ、　Ｂ・・・・・・端子、Ｑｌ・・
・・・・トランジスタ。Fig. 1 is a circuit diagram showing a conventional speaker switching circuit, Fig. 2 is a circuit diagram showing an embodiment of the speaker switching circuit of this invention, and Fig. 3 is a schematic diagram of another embodiment of the speaker switching circuit of this invention. FIG. 1...Power amplifier, 2...Protection circuit,
3...Speaker output, 4...Headphone jack, RY...Protection relay, RY l.
...Contact, A, B...Terminal, Ql...
...Transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ヘッドホンジャックの内部の接点により、電力増幅器な
どの出力回路を保護するための保護リレーを開閉させる
スイッチとしたことを特徴とするスピーカ切換回路。A speaker switching circuit characterized in that a contact inside a headphone jack is used as a switch to open and close a protection relay for protecting an output circuit such as a power amplifier.
JP18599483U 1983-12-01 1983-12-01 Speaker switching circuit Pending JPS6093392U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18599483U JPS6093392U (en) 1983-12-01 1983-12-01 Speaker switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18599483U JPS6093392U (en) 1983-12-01 1983-12-01 Speaker switching circuit

Publications (1)

Publication Number Publication Date
JPS6093392U true JPS6093392U (en) 1985-06-26

Family

ID=30401864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18599483U Pending JPS6093392U (en) 1983-12-01 1983-12-01 Speaker switching circuit

Country Status (1)

Country Link
JP (1) JPS6093392U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5551112U (en) * 1978-09-30 1980-04-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5551112U (en) * 1978-09-30 1980-04-04

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