This massive and powerful fork which has a frequency of approximately 60 vibrations per sec., is ideal for
producing
standing waves and is mounted on a heavy cast iron base. An
electromagnet is arranged between the prongs of the fork without
touching it. A small spring type strip is attached to the one of the
prongs. A screw just makes a contact with this strip. Supplied with
scale pan, bench clamp with pulley but without weights. But on steady streamlined base with provision for horizontal or vertical views.
