H01K9/00—Lamps having two or more incandescent bodies separately heated
H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch
Landscapes
Circuit Arrangement For Electric Light Sources In General
(AREA)
Moyens de changement de calibre d'un transformateur d'intensite, a plusieurs sorties de calibres differents, destine a alimenter un appareil electrique recepteur tel qu'un compteur.