| Show THE TANTALUM LAMP the general electric company reports very gratifying sales of tantalum lamps the sales of this lamp are more than double what they were a year ago and the lamp appears to he be sharing with the demand for high efficiency lamps created by the introduction of tungsten lamps the tantalum lamp as at present supplied is giving most excellent life service contrary to general belief these lamps will give good commercial life on alternating current of sixty cycles or less their life on this frequency will average well above hours an interesting tantalum lamp order recently re received delved called for 1900 lamps for the U S war vessels attending the hudson pulton fulton celebration in new york |
