JPS5558616A - Tuning circuit of uhf tuner and adjustment method of its resonance frequency - Google Patents
Tuning circuit of uhf tuner and adjustment method of its resonance frequencyInfo
- Publication number
- JPS5558616A JPS5558616A JP13055378A JP13055378A JPS5558616A JP S5558616 A JPS5558616 A JP S5558616A JP 13055378 A JP13055378 A JP 13055378A JP 13055378 A JP13055378 A JP 13055378A JP S5558616 A JPS5558616 A JP S5558616A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- resonance
- tuning circuit
- uhf tuner
- resonance frequency
- 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
Abstract
PURPOSE: To obtain the tuning circuit of a UHF tuner where assembling automatization and adjustment are easy, by constituting a resonance coil by a pair of coils which are connected in parallel.
CONSTITUTION: A tuning circuit is constituted by input connection coil 8, output connection coil 10, a resonance coil constituted by two U-shaped resonance coils 14 and 15 which are connected to input connection coil 8 and output connection coil 10 electromagnetically and have both ends connected into one body, trimmer condenser 5 (5a, 5b) connected in series to resonance coil 14, and a series circuit consisting of a varactor diode and a tracking correcting capacitor which are connected in parallel to the trimmer condenser above. Then, resonance coil 15 is inclined to change the connection degree to resonance coil 14, thereby adjusting resonance inductance.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13055378A JPS6046568B2 (en) | 1978-10-25 | 1978-10-25 | UHF tuner tuning circuit and its resonant frequency adjustment method |
GB7934446A GB2035708B (en) | 1978-10-06 | 1979-10-04 | Tunable resonant circuits for uhf tuners in televison receivers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13055378A JPS6046568B2 (en) | 1978-10-25 | 1978-10-25 | UHF tuner tuning circuit and its resonant frequency adjustment method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5558616A true JPS5558616A (en) | 1980-05-01 |
JPS6046568B2 JPS6046568B2 (en) | 1985-10-16 |
Family
ID=15037017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13055378A Expired JPS6046568B2 (en) | 1978-10-06 | 1978-10-25 | UHF tuner tuning circuit and its resonant frequency adjustment method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6046568B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5972001U (en) * | 1982-11-02 | 1984-05-16 | 松下電器産業株式会社 | microwave filter |
EP1191625A2 (en) * | 2000-09-22 | 2002-03-27 | Filtronic LK Oy | High-pass filter |
-
1978
- 1978-10-25 JP JP13055378A patent/JPS6046568B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5972001U (en) * | 1982-11-02 | 1984-05-16 | 松下電器産業株式会社 | microwave filter |
EP1191625A2 (en) * | 2000-09-22 | 2002-03-27 | Filtronic LK Oy | High-pass filter |
EP1191625A3 (en) * | 2000-09-22 | 2003-05-14 | Filtronic LK Oy | High-pass filter |
Also Published As
Publication number | Publication date |
---|---|
JPS6046568B2 (en) | 1985-10-16 |
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