JPS5819546U - AM receiver MW/LW 2 band switching circuit - Google Patents

AM receiver MW/LW 2 band switching circuit

Info

Publication number
JPS5819546U
JPS5819546U JP11322381U JP11322381U JPS5819546U JP S5819546 U JPS5819546 U JP S5819546U JP 11322381 U JP11322381 U JP 11322381U JP 11322381 U JP11322381 U JP 11322381U JP S5819546 U JPS5819546 U JP S5819546U
Authority
JP
Japan
Prior art keywords
coil
band
receiver
switching circuit
band switching
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
Application number
JP11322381U
Other languages
Japanese (ja)
Other versions
JPS6236363Y2 (en
Inventor
古橋　進治
Original Assignee
オンキヨー株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by オンキヨー株式会社 filed Critical オンキヨー株式会社
Priority to JP11322381U priority Critical patent/JPS5819546U/en
Publication of JPS5819546U publication Critical patent/JPS5819546U/en
Application granted granted Critical
Publication of JPS6236363Y2 publication Critical patent/JPS6236363Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のＭＷ／ＬＷ２バンド切換回路図、第２図
は本考案ＭＷ／ＬＷ２バンド切換回路図。 Ｌｌ、Ｌ２はアンテナ周調用コイル、Ｌ３．　Ｌ４は発
振用コイル、ＳＷｌはバンドセレクトスイッチ、ｓｗ２
はリレースイッチ。FIG. 1 is a conventional MW/LW two-band switching circuit diagram, and FIG. 2 is a MW/LW two-band switching circuit diagram of the present invention. Ll and L2 are antenna frequency adjustment coils, L3. L4 is the oscillation coil, SWl is the band select switch, sw2
is a relay switch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アンテナ同調回路をＭＷバンド用コイルＬ１とＬＷバン
ド用コイルＬ２を接続して構成［７、発振回路をＭＷバ
ンド用コイルＬ３とＬＷバンド用コイルＬ４を接続して
なるＡＭ受信機において、バンドセレクトスイッチＳＷ
１がＭＷ側に切換った時にリレースイッチＳＷ２がＯＮ
し、コイルＬ１とコイルＬ２との２次側接続部がアース
接続すると共に、コイルＬ３とコイルＬ４との２次側接
続部がアース接続し、バンドセレクトスイッチＳＷ１が
ＬＷ側に切換った時にリレースイッチＳＷ２がＯＦＦし
、前記コイルＬ１とコイルＬ２、コイルＬ３とコイルＬ
４の両２次側接続部のアース接続が開放されるＡＭ受信
機のＭＷ／ＬＷ２バンド切換回路。The antenna tuning circuit is configured by connecting the MW band coil L1 and the LW band coil L2 [7. In an AM receiver in which the oscillation circuit is configured by connecting the MW band coil L3 and the LW band coil L4, the band select switch is SW
When 1 switches to MW side, relay switch SW2 turns on.
However, the secondary side connection between coil L1 and coil L2 is connected to ground, and the secondary side connection between coil L3 and coil L4 is connected to ground, and when band select switch SW1 is switched to the LW side, the relay is activated. Switch SW2 is turned off, and the coil L1 and coil L2, and the coil L3 and coil L are turned off.
MW/LW 2-band switching circuit of an AM receiver in which the ground connections of both secondary side connections of 4 are opened.
JP11322381U 1981-07-29 1981-07-29 AM receiver MW/LW 2 band switching circuit Granted JPS5819546U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11322381U JPS5819546U (en) 1981-07-29 1981-07-29 AM receiver MW/LW 2 band switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11322381U JPS5819546U (en) 1981-07-29 1981-07-29 AM receiver MW/LW 2 band switching circuit

Publications (2)

Publication Number Publication Date
JPS5819546U true JPS5819546U (en) 1983-02-07
JPS6236363Y2 JPS6236363Y2 (en) 1987-09-16

Family

ID=29907531

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11322381U Granted JPS5819546U (en) 1981-07-29 1981-07-29 AM receiver MW/LW 2 band switching circuit

Country Status (1)

Country Link
JP (1) JPS5819546U (en)

Also Published As

Publication number Publication date
JPS6236363Y2 (en) 1987-09-16

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