ES290141A3 - Improvements in the tuning devices in radio receptor appliances (Machine-translation by Google Translate, not legally binding)
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Improvements in the tuning devices in radio receptor appliances (Machine-translation by Google Translate, not legally binding)
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Improvements in the tuning devices in radio reception devices, essentially characterized in that the illumination of the indicator quadrant, mobile index and other signal elements of the instantaneous position of the tuning system, is carried out by means of an electrical circuit independent of the general circuit of power supply of the circuitry and elements that make up the receiver, for which it is equipped with an independent source of power, and own electrical conductors, closing the lighting circuit by a switch-switch, whose conductive action takes place temporarily to drive the contactor system mobile, which allows the quadrant and other signal elements to be illuminated for a variable time at will, the light produced by the incandescent lamps and emerging to the exterior of the quadrant being eventually usable, for an auxiliary illuminative action on the outside of the device. (Machine-translation by Google Translate, not legally binding)
ES0290141A1963-07-191963-07-19Improvements in the tuning devices in radio receptor appliances (Machine-translation by Google Translate, not legally binding)
ExpiredES290141A3
(en)
A provision to control electrical lighting within a dark space, for example, in a tunnel. (Machine-translation by Google Translate, not legally binding)
Improvements in intermediate connection devices that guarantee the progressive lighting of the electric lamps of incandescence (Machine-translation by Google Translate, not legally binding)