Company History

Nortek Security & Control History

Linear Corporation was founded in 1961 by Ted Farrell, who served as President and Chief Executive Officer. William A. Schanbacher joined the Los Angeles-based Company as a co-principal shortly after incorporation. He served as Chairman of the Board of Directors.

Originally, Linear was a retail operation that sold and installed automatic garage door operators for residential installations.

However, both principals had made the decision early to create an electronics manufacturing company and soon acquired the rights to manufacture wireless radio controls marketed under the trade name “Tamar.”

Soon after beginning production of the Tamar products, Messrs. Farrell and Schanbacher established a limited wholesale market for their products in San Diego, California. From 1962 through 1965, distribution expanded throughout the United States.

Concurrently, the Company designed and built an advanced set of controls that were smaller, more reliable, and more attractively packaged than the competitive controls. From 1965 through 1975, Linear marketed a proprietary line of wireless controls based on a Frequency Shift Keyed (FSK) coding and transmission technique developed in-house. The success of this equipment in the door controls marketplace accounted for the Company’s rapid growth during that period. FSK also enabled the Company to produce its first home security systems comprised of proprietary components.

A new line of digitally coded transmitters and receivers was introduced in 1975. With a large number of discrete codes available, this equipment enabled Linear to move to a commanding position in the industry as a supplier of high-tech home security systems.

Formed in 2007 by security industry veterans Lance Dean and Scott Simon, Linear’s 2GIG team develops and produces innovative security and home automation systems. The 2GIG team developed the GC2 Control Panel, the first self-contained, all-in-one security and home management system complete with color LCD touch screen which was named the 2011 Security Product of the Year by the Consumer Electronics Association (CEA).

Today, 2GIG continues to develop next-generation home and small business management systems complete with 3G, WiFi, DVR capability and a feature-rich video solution. 2GIG is a member of the Z-Wave Alliance™, which enables 2GIG to provide customers with one of the most innovative and interactive home security platforms on the market. For more information please visit

Click here for key events in the history of Linear: 1961-1984 | 1985-present.