It consists of a circular frame made
from non-magnetic silver aluminum alloy. an insulating copper wire is wound on
the frame. The ends of the wires are connected to terminals which are fitted on
the superior quality wooden board. A rectangular frame (made from anodized
aluminum rods) is supported on wooden board. The anodized aluminum rod are
graduated up to 50 cm on both sides.
superior quality permanent magnet
compass box moves on a platform (made form aluminum silver alloy). This
platform moves on the rectangular frame along the axis of the coil. Supplied
with superior quality compass box.