JPS623120U - - Google Patents
Info
- Publication number
- JPS623120U JPS623120U JP1985094868U JP9486885U JPS623120U JP S623120 U JPS623120 U JP S623120U JP 1985094868 U JP1985094868 U JP 1985094868U JP 9486885 U JP9486885 U JP 9486885U JP S623120 U JPS623120 U JP S623120U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- tuning
- output
- short
- chip component
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例であるＶＨＦチユー
ナのＩＦ出力用同調回路の回路図、第２図は第１
図に示すＩＦ出力用同調回路を組付けるためのプ
リント基板の具体例を示す部分平面図である。第
３図及び第４図は従来例を示し、第３図は単同調
方式のＩＦ同調回路の回路図、第４図は複同調方
式のＩＦ同調回路の回路図である。
１３……混合段回路、１４……π型フイルタ、
１８……直列コンデンサ、１９，２０……導電パ
ターン、２１……短絡用チツプ部品、２２……同
調用コイル、２３……ＩＦ出力端子、２５……Ｉ
Ｆ出力用同調回路、２６……プリント基板。
FIG. 1 is a circuit diagram of an IF output tuning circuit of a VHF tuner which is an embodiment of the present invention, and FIG.
FIG. 3 is a partial plan view showing a specific example of a printed circuit board for assembling the IF output tuning circuit shown in the figure. 3 and 4 show conventional examples, with FIG. 3 being a circuit diagram of a single tuning type IF tuning circuit, and FIG. 4 being a circuit diagram of a double tuning type IF tuning circuit. 13... Mixing stage circuit, 14... π-type filter,
18...Series capacitor, 19, 20...Conductive pattern, 21...Short circuit chip component, 22...Tuning coil, 23...IF output terminal, 25...I
Tuning circuit for F output, 26...Printed circuit board.
Claims (1)
分に、短絡用チツプ部品か同調用コイルのいずれ
をも取付け可能な導電パターンを予め設け、上記
短絡用チツプ部品又は同調用コイルの選択的取付
部品を直列回路のコンデンサによつて、ＩＦ出力
端子に結合して混合段からのＩＦ出力を導出する
ことを特徴とするＶＨＦチユーナ。 A conductive pattern to which either a short-circuit chip component or a tuning coil can be attached is provided in advance on the IF output tuning circuit assembly part including the π-type filter, and a selective attachment component for the short-circuit chip component or tuning coil is provided. is coupled to an IF output terminal by a capacitor in a series circuit to derive an IF output from a mixing stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985094868U JPH0221795Y2 (en) | 1985-06-21 | 1985-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985094868U JPH0221795Y2 (en) | 1985-06-21 | 1985-06-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS623120U true JPS623120U (en) | 1987-01-09 |
| JPH0221795Y2 JPH0221795Y2 (en) | 1990-06-12 |
Family
ID=30653691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985094868U Expired JPH0221795Y2 (en) | 1985-06-21 | 1985-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221795Y2 (en) |
-
1985
- 1985-06-21 JP JP1985094868U patent/JPH0221795Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0221795Y2 (en) | 1990-06-12 |
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