Reading Magnifying Glass, 50mm, 15cm Focal Length Gifts_Bar Four-output regulated DC power supply

Four-output regulated DC power supply providing +5V

Auxiliary accessory set for the demountable transformer system

the 90-45-45-degree faces redirecting wider beams for total internal reflection and image-inversion work

Extended two-inch fingers on this vinyl-coated three-finger clamp provide deeper reach into apparatus assemblies

designed so seated students read the needle without parallax error from a steep viewing angle

Reading Magnifying Glass, 50mm, 15cm Focal Length Gifts_Bar Four-output regulated DC power supplyPlastic handled 50mm reading magnifier with a 15cm focal length, doubling as a lab demo lens for focusing sunlight and investigating image formation with convex optics.