Description
and steel in a snap-top case
LED circuits
expanding and closing to suit different optical-component sizes on a single bench-mounted holder
this single-phase rheostat carries oxidized constantan winding with 4mm safety socket terminals
Double Concave Glass Lens, 50mm Diameter, 100mm Focal Length, 16.5mm Thick Subcategory_Alternative Energy and steel in a snap-topDouble concave glass lens at 50mm diameter and 100mm focal length, a thick 16. 5mm blank with optically true surfaces, the diverging curvature producing virtual upright images for refraction work.
Exchange/Return Notes
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