Air-Cooled Rheostat, 36Ω, 300 x 44mm Subcategory_Wash Bottles this 20mm-diameter steel helix carries

this 20mm-diameter steel helix carries longitudinal

Two-speed ticker timer kit printing 25 or 40 dots per second on paper tape via carbon discs

and chemistry procedures

Designed to demonstrate conservation of angular momentum and gyroscopic precession

9-piece organic chemistry and distillation glassware set provides comprehensive apparatus for laboratory synthesis and separation procedures

Air-Cooled Rheostat, 36Ω, 300 x 44mm Subcategory_Wash Bottles this 20mm-diameter steel helix carriesAir cooled rheostat at 36 ohms and 3A with constantan winding on a 300x44mm vitreous enameled tube, with a slide bar carriage and three binding posts at the winding ends and slide bar.