BE447636A - - Google Patents

Info

Publication number
BE447636A
BE447636A BE447636DA BE447636A BE 447636 A BE447636 A BE 447636A BE 447636D A BE447636D A BE 447636DA BE 447636 A BE447636 A BE 447636A
Authority
BE
Belgium
Prior art keywords
control
tube
air gap
relay
anode
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE447636A publication Critical patent/BE447636A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q1/00Details of selecting apparatus or arrangements
    • H04Q1/18Electrical details
    • H04Q1/30Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/442Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Particle Accelerators (AREA)
BE447636D BE447636A (https=)

Publications (1)

Publication Number Publication Date
BE447636A true BE447636A (https=)

Family

ID=103424

Family Applications (1)

Application Number Title Priority Date Filing Date
BE447636D BE447636A (https=)

Country Status (1)

Country Link
BE (1) BE447636A (https=)

Similar Documents

Publication Publication Date Title
FR2695286A1 (fr) Système de détection et de signalisation de lampes défaillantes dans un réseau d'éclairage.
BE447636A (https=)
EP0559540A1 (fr) Dispositif d'allumage électronique à bobine pour moteur à allumage commandé
EP1931181B1 (fr) Ballast pour lampe à décharge
EP0028986B1 (fr) Dispositif d'alimentation de lampe à décharge à circuit de préchauffage
BE446654A (https=)
BE447490A (https=)
EP0260164B1 (fr) Programmateur de puissance d'un réseau de lampes d'éclairage
BE415227A (https=)
BE409194A (https=)
BE337358A (https=)
EP0789486A1 (fr) Appareil d'affichage d'images, muni d'un dispositif de mise en veille progressif
BE491831A (https=)
BE553448A (https=)
CH269360A (fr) Procédé de signalisation sur un chemin de télécommunication.
CH279479A (fr) Dispositif de commutation pour installation de télécommunication.
BE476036A (https=)
BE462894A (https=)
BE473923A (https=)
BE440831A (https=)
BE428967A (https=)
CH272113A (fr) Dispositif de signalisation.
BE420290A (https=)
BE431631A (https=)
BE502955A (https=)