BE441479A - - Google Patents

Info

Publication number
BE441479A
BE441479A BE441479DA BE441479A BE 441479 A BE441479 A BE 441479A BE 441479D A BE441479D A BE 441479DA BE 441479 A BE441479 A BE 441479A
Authority
BE
Belgium
Prior art keywords
current
transformer
relay
antenna
contact
Prior art date
Application number
Other languages
English (en)
French (fr)
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.)
Publication of BE441479A publication Critical patent/BE441479A/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/30—Automatic scanning over a band of frequencies where the scanning is accomplished by mechanical means, e.g. by a motor
    • 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
    • H03H7/38—Impedance-matching networks
    • H03H7/40—Automatic matching of load impedance to source impedance

Landscapes

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
BE441479D 1940-05-17 BE441479A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE218532X 1940-05-17

Publications (1)

Publication Number Publication Date
BE441479A true BE441479A (de)

Family

ID=5831365

Family Applications (1)

Application Number Title Priority Date Filing Date
BE441479D BE441479A (de) 1940-05-17

Country Status (3)

Country Link
BE (1) BE441479A (de)
CH (1) CH218532A (de)
FR (1) FR874564A (de)

Also Published As

Publication number Publication date
FR874564A (fr) 1942-08-11
CH218532A (de) 1941-12-15

Similar Documents

Publication Publication Date Title
FR2532511A1 (de)
EP1040559B1 (de) Steuerverfahren für gleichstromwandler mit induktivem energiespeicher
GB1258828A (de)
BE441479A (de)
EP0159233B1 (de) Steuerschaltung zum Schalten eines Leistungstransistors
US4122507A (en) Loudspeaker overload circuit
EP0465903A1 (de) Magnetisches Steuerverfahren von Energieübertragung in einem statischen Konverter
US2270917A (en) Electrical remote control system
JP2865691B2 (ja) 警報無線受信機
CA2345570A1 (en) Programmable circuit with preview function
EP0007866B1 (de) Stabilisierte Speisungsschaltung für einen Videofrequenz-Empfänger und eine solche Schaltung enthaltender Empfänger
US2647187A (en) Calibration of automatic circuit breakers
EP0296989B1 (de) Einrichtung zur Steuerung der minimalen und maximalen Frequenzen eines frequenzmodulierten Videosignals
FR2552288A1 (fr) Joncteur d'abonne telephonique
JPS6216037Y2 (de)
CH684133A5 (fr) Procédé magnétique de contrôle du transfert d'énergie dans un convertisseur statique et convertisseur statique pour sa mise en oeuvre.
EP1492392B1 (de) Dimmer basierend auf einem Wechselstrom Schalter
BE641304A (de)
JPS5995518A (ja) プログラム電気シヤツタにおける露光量制御装置
FR2606947A1 (fr) Dispositif de commutation pour assurer la continuite de la fourniture d'energie, par une alimentation, a un materiel portable et alimentation comportant un tel dispositif
BE486389A (de)
US2504898A (en) Photographic light synchronizer
EP0200266A1 (de) Schaltung zur Erzeugung alternierender Komplementärsignale
BE337369A (de)
FR2543756A1 (fr) Procede et dispositif destines a la conversion de la tension d'une source de tension continue