JPS6170413U - - Google Patents
Info
- Publication number
- JPS6170413U JPS6170413U JP15524584U JP15524584U JPS6170413U JP S6170413 U JPS6170413 U JP S6170413U JP 15524584 U JP15524584 U JP 15524584U JP 15524584 U JP15524584 U JP 15524584U JP S6170413 U JPS6170413 U JP S6170413U
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- signal terminal
- power switch
- transistor
- whose
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Amplifiers (AREA)
Description
図面はこの考案のミユーテイング回路を示すも
のである。
1……入力信号端子、2……増幅回路、3……
出力信号端子、4……電源供給端子、5a……電
源スイツチ、5a1……可動接点、5a2……固
定接点、5b……電源スイツチと連動するスイツ
チ、5b1……可動接点、5b2……一方の固定
接点、5b2……他方の固定接点、6……ミユー
テイング回路、7……第1のトランジスタ、8…
…第2のトランジスタ、9……第1の抵抗、10
……第2の抵抗、11……コンデンサ。
The drawing shows the muting circuit of this invention. 1...Input signal terminal, 2...Amplification circuit, 3...
Output signal terminal, 4... Power supply terminal, 5a... Power switch, 5a 1 ... Movable contact, 5a 2 ... Fixed contact, 5b... Switch interlocked with the power switch, 5b 1 ... Movable contact, 5b 2 ...One fixed contact, 5b 2 ...The other fixed contact, 6... Muting circuit, 7... First transistor, 8...
...Second transistor, 9...First resistor, 10
...Second resistor, 11...Capacitor.
Claims (1)
が介在する信号経路において、コレクタが出力信
号端子側に接続され、エミツタがアースされ、ベ
ースに第1の抵抗が接続された第1のトランジス
タと、コレクタが出力信号端子側に接続され、エ
ミツタが前記第1のトランジスタのベースに一端
が接続された前記第1の抵抗の他端に接続され、
ベースが第2の抵抗を介してアースされた第2の
トランジスタと、一端が前記第1の抵抗と前記第
2のトランジスタのエミツタとの接続点に接続さ
れ、他端が前記増幅回路の電源スイツチと連動す
るスイツチの可動接点に接続されたコンデンサと
、一方の固定接点がアースされ、他方の固定接点
が電源側に接続されるとともに前記増幅回路の電
源スイツチをオンにしたときこれと連動して前記
可動接点が前記他方の固定接点に接続され、前記
電源スイツチをオフにしたときこれと連動して前
記可動接点が前記一方の固定接点に接続される電
源スイツチと連動するスイツチとで構成したミユ
ーテイング回路。 In a signal path in which an amplifier circuit is interposed between an input signal terminal and an output signal terminal, a first transistor whose collector is connected to the output signal terminal side, whose emitter is grounded, and whose base is connected to a first resistor; , a collector is connected to the output signal terminal side, an emitter is connected to the other end of the first resistor whose one end is connected to the base of the first transistor,
a second transistor whose base is grounded via a second resistor, one end connected to the connection point between the first resistor and the emitter of the second transistor, and the other end connected to the power switch of the amplifier circuit; The capacitor connected to the movable contact of the switch that operates in conjunction with Muting comprising: a power switch in which the movable contact is connected to the other fixed contact, and in which the movable contact is connected to the one fixed contact when the power switch is turned off; and a switch in conjunction with the power switch. circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15524584U JPS6170413U (en) | 1984-10-15 | 1984-10-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15524584U JPS6170413U (en) | 1984-10-15 | 1984-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6170413U true JPS6170413U (en) | 1986-05-14 |
Family
ID=30713240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15524584U Pending JPS6170413U (en) | 1984-10-15 | 1984-10-15 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6170413U (en) |
-
1984
- 1984-10-15 JP JP15524584U patent/JPS6170413U/ja active Pending