6970 MICRO LAMP, 6-VOLT, 24-WATT, Bausch aamp; Lomb, consisting of a gas- filled Mazda lamp with concentrated filament, ... Diagram below shows the approximate relative position of these illuminating units with which to secure sharp definition in dark field illumination. ... On a.c. circuits, the small transformer is the most economical and convenient method of reducing the voltage, while on d.c. circuits theanbsp;...
|Title||:||Laboratory Apparatus and Reagents Selected for Laboratories of Chemistry and Biology ...|
|Author||:||Thomas, Arthur H., company, Philadelphia|