Sonometer

Model No. SEL00280

Specifications:

Sonometer,     3-wire:    Hollow     wooden    sounding    box 1290x130x 110 mm,  with mm scale, has two fixed bridges 72 cm apart over which wires are stretched. To one wire is fitted  a spring balance reading to  100Nx5N and  its tension can be adjusted by a winged nut and measured. Another wire pass  over  a  pulley  and  can  be  located  as  desired.  A  third wire,  for  comparison,  can  have  its  tension  adjusted  by  a wrest-pin.  With  3  movable  bridges,  wrest-pin  key,  spring balance,  and  set  of  four  wires  of  different  diameters,  each 1.5 meter long, without masses.