JPH0172725U - - Google Patents
Info
- Publication number
- JPH0172725U JPH0172725U JP1987168729U JP16872987U JPH0172725U JP H0172725 U JPH0172725 U JP H0172725U JP 1987168729 U JP1987168729 U JP 1987168729U JP 16872987 U JP16872987 U JP 16872987U JP H0172725 U JPH0172725 U JP H0172725U
- Authority
- JP
- Japan
- Prior art keywords
- intermediate frequency
- transistor
- frequency filter
- radio receiver
- time constant
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
Description
第１図は本考案の一実施例を示す図、第２図は
本考案を説明するのに供する図である。
４……中間周波フイルタ、１４……トランジス
タ、１８……時定数回路。
FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram used to explain the present invention. 4...Intermediate frequency filter, 14...Transistor, 18 ...Time constant circuit.
Claims (1)
いて、中間周波信号を通過せしめるための中間周
波フイルタと、この中間周波フイルタと並列に接
続されたトランジスタと、このトランジスタのベ
ースに接続された時定数回路を設け、電源投入時
、前記時定数回路にて定まる時間、前記トランジ
スタをオンせしめることにより前記中間周波フイ
ルタを短絡し、以つて前記自動周波数制御回路の
キヤプチヤーレンジを拡大するようにしたことを
特徴とするラジオ受信機。 A radio receiver equipped with an automatic frequency control circuit includes an intermediate frequency filter for passing an intermediate frequency signal, a transistor connected in parallel with this intermediate frequency filter, and a time constant circuit connected to the base of this transistor. and when the power is turned on, the intermediate frequency filter is short-circuited by turning on the transistor for a time determined by the time constant circuit, thereby expanding the capture range of the automatic frequency control circuit. Features a radio receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987168729U JPH0172725U (en) | 1987-11-04 | 1987-11-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987168729U JPH0172725U (en) | 1987-11-04 | 1987-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0172725U true JPH0172725U (en) | 1989-05-16 |
Family
ID=31458162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987168729U Pending JPH0172725U (en) | 1987-11-04 | 1987-11-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0172725U (en) |
-
1987
- 1987-11-04 JP JP1987168729U patent/JPH0172725U/ja active Pending
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