Today's Date is
Oct 04, 2022

First commercial device to apply Shockley's junction transistor, 1952
Sonotone markets a $229.50 hearing aid that uses two vacuum tubes and one transistor-the first commercial device to apply Shockley's junction transistor. Replacement batteries for transistorized hearing aids cost only $10, not the nearly $100 of batteries for earlier vacuum tube models.
Welcome to Hottle & Associates
Ken Haver,
Welcome to our website, and thank you for allowing us the opportunity to introduce you to our firm.

Hottle & Associates is a full-service, project-oriented engineering, design and drafting firm, located near Akron, Ohio. Our seasoned staff of mechanical engineers, designers and drafters specialize in specialty machine design, industrial design and the design of automated material handling systems. Since 1950, our worldwide project work covers a wide variety of industries, including the Tire & Rubber industry that is so prevalent within our region.

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