FR890710A - Improvements to electric filters - Google Patents

Improvements to electric filters

Info

Publication number
FR890710A
FR890710A FR890710DA FR890710A FR 890710 A FR890710 A FR 890710A FR 890710D A FR890710D A FR 890710DA FR 890710 A FR890710 A FR 890710A
Authority
FR
France
Prior art keywords
electric filters
filters
electric
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
Other languages
French (fr)
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Application granted granted Critical
Publication of FR890710A publication Critical patent/FR890710A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0153—Electrical filters; Controlling thereof
    • H03H7/0161—Bandpass filters
    • H03H7/0169—Intermediate frequency filters
    • H03H7/0176—Intermediate frequency filters witout magnetic core
FR890710D 1942-10-15 1942-10-15 Improvements to electric filters Expired FR890710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR890710T 1942-10-15

Publications (1)

Publication Number Publication Date
FR890710A true FR890710A (en) 1944-02-16

Family

ID=9382169

Family Applications (1)

Application Number Title Priority Date Filing Date
FR890710D Expired FR890710A (en) 1942-10-15 1942-10-15 Improvements to electric filters

Country Status (1)

Country Link
FR (1) FR890710A (en)

Similar Documents

Publication Publication Date Title
FR950095A (en) Improvements made to dust separators
FR886632A (en) Improvements to aeromotors
FR888166A (en) Improvements to scrapers-scrapers
FR943005A (en) Improvements to aircraft
FR975635A (en) Improvements to electric welders
FR890710A (en) Improvements to electric filters
FR924299A (en) Improvements to electric capacitors
FR952403A (en) Improvements to electric filters
FR939335A (en) Improvements to unit heaters
FR975094A (en) Improvements to pumps
FR887890A (en) Improvements to pumps
FR931250A (en) Improvements to supporting surfaces
FR949745A (en) Improvements to belts
FR52434E (en) Improvements to electric boilers
FR933901A (en) Improvements to electric capacitors
FR978948A (en) Improvements made to electric hotplates
FR888018A (en) Improvements to dryers
FR979035A (en) Improvements to electric kettles
FR890535A (en) Refinements to barbins
FR889925A (en) Improvements made to electrical pipes
FR890652A (en) Improvements to daters
FR927051A (en) Development of electric ratiometers
FR913479A (en) Improvements to electric thermostats
FR874386A (en) Improvements to electric filters
FR915616A (en) Improvements to electrical resistances