Apparatus for varying the pitch of audible tones driven by a turntable

An apparatus driven by the platter of a phonographic turntable with speakers for producing and varying the pitch and amplitude of audible tones comprising:

• a pulse inducing wheel with a pulse inducing rotor containing a plurality of cogs around the circumference of said pulse inducing rotor;
• a drive wheel mechanically connected to said pulse inducing wheel;
• a pickup connected by a pickup mount proximally to said pulse inducing wheel;
• a hinge located between a pickup mount and wheel mount;
• a spring which holds said hinge in an open position;
• a depressable handle attached to said pickup mount;
• a chassis comprising said pickup mount and said wheel mount and to which said drive wheel, said pulse inducing wheel, said pickup, said hinge, said spring and said depressable handle
• a rail connected to said phonographic turntable positioned over said platter, running from the center of said platter to the outer edge of said platter and extending through an aperture in said chassis, said chassis being slidably traversable on said rail through said aperture;
• whereby as said platter rotates, said drive wheel contacting said platter causes a signal to be generated by said pulse inducing wheel and which is captured by said pickup which transforms said signal into electrical pulses which are converted into audible tones by said speakers associated with said phonographic turntable the pitch of which may be adjusted by moving said chassis along said rail, and the amplitude of which can be adjusted by manipulation of said handle attached to said pickup mount which causes said hinge to close when said handle is depressed thus causing said wheel mount to rotate into a position more proximal to said pickup mount and thus positioning said pulse inducing rotor more proximal to said pickup.