GB617974A - Improvements relating to electric filters - Google Patents

Improvements relating to electric filters

Info

Publication number
GB617974A
GB617974A GB7747/46A GB774746A GB617974A GB 617974 A GB617974 A GB 617974A GB 7747/46 A GB7747/46 A GB 7747/46A GB 774746 A GB774746 A GB 774746A GB 617974 A GB617974 A GB 617974A
Authority
GB
United Kingdom
Prior art keywords
pass
coils
band
condensers
improvements relating
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.)
Expired
Application number
GB7747/46A
Other languages
English (en)
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Publication of GB617974A publication Critical patent/GB617974A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Filters And Equalizers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
GB7747/46A 1945-02-17 1946-03-12 Improvements relating to electric filters Expired GB617974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR994902T 1945-02-17

Publications (1)

Publication Number Publication Date
GB617974A true GB617974A (en) 1949-02-15

Family

ID=9556754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7747/46A Expired GB617974A (en) 1945-02-17 1946-03-12 Improvements relating to electric filters

Country Status (4)

Country Link
BE (1) BE463000A (enrdf_load_stackoverflow)
CH (1) CH252008A (enrdf_load_stackoverflow)
FR (1) FR994902A (enrdf_load_stackoverflow)
GB (1) GB617974A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CH252008A (fr) 1947-11-30
FR994902A (fr) 1951-11-23
BE463000A (enrdf_load_stackoverflow)

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