JPS57145416A - Frequency characteristic adjusting circuit for signal current - Google Patents

Frequency characteristic adjusting circuit for signal current

Info

Publication number
JPS57145416A
JPS57145416A JP56030508A JP3050881A JPS57145416A JP S57145416 A JPS57145416 A JP S57145416A JP 56030508 A JP56030508 A JP 56030508A JP 3050881 A JP3050881 A JP 3050881A JP S57145416 A JPS57145416 A JP S57145416A
Authority
JP
Japan
Prior art keywords
terminal
capacitor
coil
frequency characteristic
adjusting circuit
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
Application number
JP56030508A
Other languages
Japanese (ja)
Inventor
Hitoshi Kawamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56030508A priority Critical patent/JPS57145416A/en
Publication of JPS57145416A publication Critical patent/JPS57145416A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/025—Equalizers; Volume or gain control in limited frequency bands

Landscapes

  • Television Signal Processing For Recording (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Picture Signal Circuits (AREA)

Abstract

PURPOSE:To provide both-emphasized and attenuated frequency characteristics with resonance characteristics by connecting the 1st capacitor to the 1st terminal of a variable resistor, the 2nd capacitor to the 3rd terminal, and a coil to the 2nd terminal. CONSTITUTION:In a variable resistor R2, the 1st capacitor is connected to the 1st terminal A, the 2nd capacitor C2 is connected to the 3rd terminal B, and a coil L1 is connected to the 2nd terminal C respectively. Then, the 1st series resonance circuit is formed of the capacitor C1, resistance R2, and coil L1. Further, the 2nd series resonance circuit is composed of the capacitor C2, resistance R2 and coil L1. Consequently, when the terminal C is placed at the side of the terminal A, frequency characteristics are emphasized at a resonance point between the capacitor C1 and coil L1 to obtain characteristics A. When the terminal C is at the side of the terminal B, the frequency characteristics are attenuated at a resonance point between the capacitor C2 and coil L1 to obtain characteristics B. When the terminal C2 is in the center, the frequency characteristics are flattened to obtain characteristcs C.
JP56030508A 1981-03-05 1981-03-05 Frequency characteristic adjusting circuit for signal current Pending JPS57145416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56030508A JPS57145416A (en) 1981-03-05 1981-03-05 Frequency characteristic adjusting circuit for signal current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56030508A JPS57145416A (en) 1981-03-05 1981-03-05 Frequency characteristic adjusting circuit for signal current

Publications (1)

Publication Number Publication Date
JPS57145416A true JPS57145416A (en) 1982-09-08

Family

ID=12305748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56030508A Pending JPS57145416A (en) 1981-03-05 1981-03-05 Frequency characteristic adjusting circuit for signal current

Country Status (1)

Country Link
JP (1) JPS57145416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0643592U (en) * 1992-11-18 1994-06-10 株式会社松浦製作所 Watch movement device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0643592U (en) * 1992-11-18 1994-06-10 株式会社松浦製作所 Watch movement device

Similar Documents

Publication Publication Date Title
EP0117008A3 (en) Analogue wave filter device
JPS5459859A (en) Input transformer device of television picture receiver
JPS56711A (en) Antenna unit
JPS57145416A (en) Frequency characteristic adjusting circuit for signal current
JPS5627514A (en) Tuning circuit of balanced antenna
JPS56134815A (en) Filter circuit
JPS5754414A (en) Attenuator circuit
JPS57101416A (en) Variable tuner
JPS5768917A (en) Hybrid circuit
JPS5560318A (en) Surge absorbing circuit
JPS56129415A (en) Variable equalizer
JPS5684017A (en) High frequency hybrid integrated circuit
JPS56156012A (en) Phase shifter
JPS57180217A (en) Band pass filter of variable band width
JPS56134831A (en) Switch device for high frequency
JPS5595495A (en) Speaker
JPS57194616A (en) Variable delay equalizing circuit
JPS55105428A (en) Matching method for elastic surface wave element
JPS55117320A (en) Amplitude equalizing circuit
JPS56153257A (en) Voltage dividing circuit for measurement of high voltage
JPS56164603A (en) Broad band frequency discriminating circuit
JPS5768915A (en) Delay equalizer
SU824407A1 (en) Amplitude corrector
SU1175015A1 (en) Frequency selection device
JPS5383558A (en) Oscillator circuit