New Sargent Welch VWR Education WL1963A closed case form Electroscope with Metal case new in box!
p/n aka 470148-720 

Closed Case Form Electroscope is enclosed, preventing air currents from affecting the deflection of the leaves.

  • Booklet of Six Leaves
  • Instructions
  • Gold and Aluminum Leaf Construction
  • Enclosed Electroscope
  • Leaves Pivot when Charged

Leaves are a combination of gold and aluminum developed to provide
strength without sacrificing sensitivity. Each leaf is suspended from
two small hooks for simple installation, and the leaves pivot, rather
than bend, when charged.

The
metal case eliminates deflections caused by charges residing on glass
walls. An insulating plastic sleeve holds the leaf-support rod in place.
Front and rear sides of the box are made of a 10 cm square glass pane
to allow visibility and shadow projection.