OTHER NEWS - March 2, 1993
From Times Staff and Wire Reports
Inventor Says Audio Golf Ball on Course: Inventor William Barnhill of Indianapolis and his partners in Protech Enterprises Inc. hope to mass-produce the first audio golf ball for errant shooters. Barnhill, who works in an electrical supply warehouse by day, has spent his spare time for the last five years inventing, reworking and perfecting Trakflite Sonic Golf Ball. The Trakflite, a regular white golf ball, has a modified core that holds a small battery, an electric circuit and a beeper. When struck by a golf club, the ball emits a high-frequency sound that can be heard up to 100 yards away.