JPS5957012U - Muting circuit of amplifier circuit - Google Patents
Muting circuit of amplifier circuitInfo
- Publication number
- JPS5957012U JPS5957012U JP15139082U JP15139082U JPS5957012U JP S5957012 U JPS5957012 U JP S5957012U JP 15139082 U JP15139082 U JP 15139082U JP 15139082 U JP15139082 U JP 15139082U JP S5957012 U JPS5957012 U JP S5957012U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- circuit
- muting
- amplifier
- bushing
- 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.)
- Granted
Links
- 230000004913 activation Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (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
第１図は従来の増幅回路のミューティング回路を示す一
路図、第２図は本考案による増幅回路の一実施例を示す
回路図である。
１は増幅器、３はミューティング用スイッチ、５は付属
回路、ＭＣは制御回路、ＴＫは時定数回路、１９′は受
光器、２７は発光器、２８Ａ。
２８ｔ３及び２８Ｃはブツシュスイッチ、２９ＬＪその
作動杆、３２Ａ、３２Ｂ及び３２Ｃはブツシュボタンで
ある。FIG. 1 is a line diagram showing a muting circuit of a conventional amplifier circuit, and FIG. 2 is a circuit diagram showing an embodiment of an amplifier circuit according to the present invention. 1 is an amplifier, 3 is a muting switch, 5 is an accessory circuit, MC is a control circuit, TK is a time constant circuit, 19' is a light receiver, 27 is a light emitter, and 28A. 28t3 and 28C are bush switches, 29LJ is its operating lever, and 32A, 32B and 32C are bush buttons.
Claims (1)
路に接続されたブツシュスイッチと、上記増幅器の出力
側に接続されたミューティング用スイッチと、常態にお
いて上記ブツシュスイッチの作動杆から離間するように
ばねによって弾性偏倚され、押圧によって上記ブツシュ
スイッチの作−動杆を押圧駆動するブツシュボタンと、
上記ブツシュスイッチの作動杆及び上記ブツシュボタン
間の間隙を光が通過し得る如くその間隙の両側に対向配
置された発光器及び受光器とを有し、上記ブツシュボタ
ンの押圧時上記ブツシュスイッチの作動に先立って上記
受光器の入射光量の変化に基づ（検出出力によって上記
ミューティング用スイッチをミューティング作動状態に
制御するようにして成る増幅回路のミューティング回路
。An amplifier, an auxiliary circuit connected to the amplifier, a bushing switch connected to the cassette circuit, a muting switch connected to the output side of the amplifier, and an operating rod of the bushing switch under normal conditions. a bushing button which is elastically biased by a spring so as to be spaced apart, and which presses and drives an operating rod of the bushing switch when pressed;
A light emitter and a light receiver are arranged opposite to each other on both sides of the gap between the operating rod of the bush switch and the bush button so that light can pass through the gap, and when the bush button is pressed, the button A muting circuit for an amplifier circuit, wherein the muting switch is controlled to be in a muting operation state based on a change in the amount of light incident on the light receiver (detection output) prior to activation of the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15139082U JPS5957012U (en) | 1982-10-05 | 1982-10-05 | Muting circuit of amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15139082U JPS5957012U (en) | 1982-10-05 | 1982-10-05 | Muting circuit of amplifier circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5957012U true JPS5957012U (en) | 1984-04-13 |
| JPH0134420Y2 JPH0134420Y2 (en) | 1989-10-19 |
Family
ID=30335492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15139082U Granted JPS5957012U (en) | 1982-10-05 | 1982-10-05 | Muting circuit of amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5957012U (en) |
-
1982
- 1982-10-05 JP JP15139082U patent/JPS5957012U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0134420Y2 (en) | 1989-10-19 |
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