electron beam vacuum device on a white background. an outdated radio-electronic lamp.

antiques background beam carving collecting component conceptual development device diode electric electrical electron electronic eliminated equipment flask flux glass high iconoscope ignitron incandescent industrial innovate internal isolated kinescope lamp luminous modernization object obsolete old outdated pentode power radio radioelectronic retro science selective shining single space spotlight technology tetrode triode tube tungsten vacuum vintage white