Patent ID: 9741328
Date: 2017-08-22
CPC Classifications: G10H,G11B,H04R

Claim:
1. An apparatus driven by the platter of a phonographic turntable with speakers for producing and varying the pitch 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 mounted proximally to said pulse inducing wheel; a chassis to which said drive wheel, said pulse inducing wheel, and said pickup are attached; 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 slidable 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.