JPS5850525U - Tuning signal transmission circuit - Google Patents
Tuning signal transmission circuitInfo
- Publication number
- JPS5850525U JPS5850525U JP14425481U JP14425481U JPS5850525U JP S5850525 U JPS5850525 U JP S5850525U JP 14425481 U JP14425481 U JP 14425481U JP 14425481 U JP14425481 U JP 14425481U JP S5850525 U JPS5850525 U JP S5850525U
- Authority
- JP
- Japan
- Prior art keywords
- signal transmission
- transmission circuit
- transistor
- tuning signal
- channel selection
- 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
- Channel Selection Circuits, Automatic Tuning Circuits (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
図は本考案による選局信号伝送回路の一実施例を示す回
路図である。
１・・・選局信号発生部、２・・・可変抵抗器、３・・
・伝送路、４・・・チューナ、５・・・トランジスタ、
６・・・中継部、？、９．１２・・・抵抗、８・・・ダ
イオード、１１・・・可変容量ダイオード。The figure is a circuit diagram showing an embodiment of a channel selection signal transmission circuit according to the present invention. 1... Tuning signal generation section, 2... Variable resistor, 3...
・Transmission line, 4... Tuner, 5... Transistor,
6... Relay department? , 9.12...Resistor, 8...Diode, 11...Variable capacitance diode.
Claims (1)
部に伝送路を介して供給する選局信号伝送回路に於いて
、前記伝送路の一部に設けられたエミッターフォロワー
接続による第１トランジスタによって構成される中継部
と、前記第１トランジスタのベースとアース間に接続さ
れかつＡＦＴ信号をベース入力とし、このＡＦＴ信号に
対応して前記選局信号伝送路の出力インピーダンスを変
化させる第２トランジスタとを備えた選局信号伝送回路
。In a tuning signal transmission circuit that supplies a tuning signal generated in a tuning signal generation section to a tuner section via a transmission path, a first channel selection signal is provided by an emitter-follower connection provided in a part of the transmission path. a relay section constituted by a transistor; and a second transistor connected between the base of the first transistor and the ground, which receives an AFT signal as a base input, and changes the output impedance of the channel selection signal transmission line in response to the AFT signal. A channel selection signal transmission circuit equipped with a transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14425481U JPS5850525U (en) | 1981-09-30 | 1981-09-30 | Tuning signal transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14425481U JPS5850525U (en) | 1981-09-30 | 1981-09-30 | Tuning signal transmission circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5850525U true JPS5850525U (en) | 1983-04-05 |
Family
ID=29937221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14425481U Pending JPS5850525U (en) | 1981-09-30 | 1981-09-30 | Tuning signal transmission circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5850525U (en) |
-
1981
- 1981-09-30 JP JP14425481U patent/JPS5850525U/en active Pending
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