SONOMETRE

SKU: GP0573

Comprising a hollow wooden box 1140x125x100mm length x width x height with 2 metre rules, 1 metre long divided in mm. Two wires of brass and steel attached to fixed bridge and tensioned by fine adjustment pegs, two movable Bridges, Pulley and fixed screw to enable a third wire to be fixed for tensioning by masses. Complete, with 2 Bridges.