JPS55166325A - Mu tuning circuit - Google Patents

Mu tuning circuit

Info

Publication number
JPS55166325A
JPS55166325A JP7484079A JP7484079A JPS55166325A JP S55166325 A JPS55166325 A JP S55166325A JP 7484079 A JP7484079 A JP 7484079A JP 7484079 A JP7484079 A JP 7484079A JP S55166325 A JPS55166325 A JP S55166325A
Authority
JP
Japan
Prior art keywords
screw
support plate
core
fixed
ferrite core
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
JP7484079A
Other languages
Japanese (ja)
Inventor
Kyozo Ogawa
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 Metals Ltd
Original Assignee
Nippon Ferrite 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 Nippon Ferrite Ltd filed Critical Nippon Ferrite Ltd
Priority to JP7484079A priority Critical patent/JPS55166325A/en
Publication of JPS55166325A publication Critical patent/JPS55166325A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole
    • H01F21/065—Measures for obtaining a desired relation between the position of the core and the inductance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/045—Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

PURPOSE:To prevent occurrence of the mechanical howling by fixing the spring screw to one end of the rod-form ferrite core and also mounting the screw with the driver groove fixed to the other end onto the bobbin support plate via a small hole. CONSTITUTION:Rod-form ferrite core 1 consists mainly of ferrite core 12, and spring screw 11 is fixed to one end of core 1. Then screw 11 is mounted adjustably to driving support plate 65. On the other hand, screw 50 with the driver groove is fixed to the other end of core 1. And screw 50 is mounted to the bobbin support plate via small hole 82. As a result, the mechanical howling occurring when the spring screw is used can be prevented.
JP7484079A 1979-06-14 1979-06-14 Mu tuning circuit Pending JPS55166325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7484079A JPS55166325A (en) 1979-06-14 1979-06-14 Mu tuning circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7484079A JPS55166325A (en) 1979-06-14 1979-06-14 Mu tuning circuit

Publications (1)

Publication Number Publication Date
JPS55166325A true JPS55166325A (en) 1980-12-25

Family

ID=13558923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7484079A Pending JPS55166325A (en) 1979-06-14 1979-06-14 Mu tuning circuit

Country Status (1)

Country Link
JP (1) JPS55166325A (en)

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