JPS6040115U - preamplifier - Google Patents
preamplifierInfo
- Publication number
- JPS6040115U JPS6040115U JP13106683U JP13106683U JPS6040115U JP S6040115 U JPS6040115 U JP S6040115U JP 13106683 U JP13106683 U JP 13106683U JP 13106683 U JP13106683 U JP 13106683U JP S6040115 U JPS6040115 U JP S6040115U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- transistor
- resistor
- preamplifier
- npn
- 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
Landscapes
- Picture Signal Circuits (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図は従来のプリアンプの回路図、第２図は本考案に
よるプリアンプ回路図、第３図、第４図は、第２図に示
す容量３６の実際の構成を示す構成図である。
１０：プリ・プリアンプ、２０：増幅段、３０：帰還回
路網、１１：ＪＥＥＴ、２３８，２３９．２４０：トラ
ンジスタ、３５：可変抵抗、３６：容量、Ｐａ、Ｐｂ：
導体パターン。FIG. 1 is a circuit diagram of a conventional preamplifier, FIG. 2 is a circuit diagram of a preamplifier according to the present invention, and FIGS. 3 and 4 are configuration diagrams showing the actual configuration of the capacitor 36 shown in FIG. 2. 10: Pre-preamplifier, 20: Amplification stage, 30: Feedback network, 11: JEET, 238, 239.240: Transistor, 35: Variable resistor, 36: Capacitance, Pa, Pb:
conductor pattern.
Claims (2)
抗を介して、第１の電源を接続し、また、そのドレイン
端子を第１のＮＰＮトランジスタのベースに接続し、該
ＮＰＮトランジスタのコレクタ端子に抵抗を介して、前
記第１の電源を接続し、該ＮＰＮ）ランジスタのコレク
タをＰＮＰトランジスタのベースに接続し、該ＰＮＰト
ランジスタのエミッタ端子に抵抗を介して前記第１の電
源を接続し、該ＰＮＰトランジスタのコレクタ端子に抵
抗を介して第２の電源を接続し、該ＰＮＰト）ンジスタ
のコレクタ端子を第２のＮＰＮトランジスタのベース端
子に接続し、そのエミッタ端子に抵抗を介して前記第２
の電源を接続し、該第２のＮＰＮ）ランジスタのコレク
タ端子を前記第１の電源または第３の電源に接続し、該
第２のＮＰＮトランジスタのエミッタ端子を抵抗と容量
との並列接続回路さらに、もうひとつの抵抗を介して前
記接合形電界効果トランジスタのゲート端子に接続し、
該接合形電界効果トランジスタのゲート端子を入力端子
とし、前記第２のＮＰＮトランジスタのエミッタ端子を
出力端子とする構成のプリアンプ。(1) A first power supply is connected to the drain terminal of the junction field effect transistor via a resistor, and the drain terminal is connected to the base of the first NPN transistor, and a resistor is connected to the collector terminal of the NPN transistor. the collector of the NPN transistor is connected to the base of the PNP transistor, the first power source is connected to the emitter terminal of the PNP transistor via a resistor, A second power source is connected to the collector terminal of the transistor via a resistor, the collector terminal of the PNP transistor is connected to the base terminal of a second NPN transistor, and the second power source is connected to the emitter terminal of the transistor via a resistor.
, the collector terminal of the second NPN transistor is connected to the first power supply or the third power supply, and the emitter terminal of the second NPN transistor is connected to a parallel connection circuit of a resistor and a capacitor. , connected to the gate terminal of the junction field effect transistor via another resistor,
A preamplifier configured such that the gate terminal of the junction field effect transistor is an input terminal, and the emitter terminal of the second NPN transistor is an output terminal.
トランジスタのエミッタ端子に接続される抵抗と並列接
続の容量を、プリント基板等の導体パターンで実現する
ことを特徴とする実用新案登録請求の範囲第１項記載の
プリアンプ。(2) In the preamplifier, the second NPN
The preamplifier according to claim 1, wherein the preamplifier is characterized in that the capacitance connected in parallel with the resistor connected to the emitter terminal of the transistor is realized by a conductor pattern such as a printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13106683U JPS6040115U (en) | 1983-08-26 | 1983-08-26 | preamplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13106683U JPS6040115U (en) | 1983-08-26 | 1983-08-26 | preamplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6040115U true JPS6040115U (en) | 1985-03-20 |
Family
ID=30296433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13106683U Pending JPS6040115U (en) | 1983-08-26 | 1983-08-26 | preamplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6040115U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5116851A (en) * | 1974-08-01 | 1976-02-10 | Mitsubishi Electric Corp | FUKIKANGATAZO FUKUKAIRO |
| JPS5211477U (en) * | 1975-07-09 | 1977-01-26 | ||
| JPS5742211A (en) * | 1980-08-28 | 1982-03-09 | Nippon Gakki Seizo Kk | Feedback amplifier |
-
1983
- 1983-08-26 JP JP13106683U patent/JPS6040115U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5116851A (en) * | 1974-08-01 | 1976-02-10 | Mitsubishi Electric Corp | FUKIKANGATAZO FUKUKAIRO |
| JPS5211477U (en) * | 1975-07-09 | 1977-01-26 | ||
| JPS5742211A (en) * | 1980-08-28 | 1982-03-09 | Nippon Gakki Seizo Kk | Feedback amplifier |
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