Dating back to 1938, the founder of the company, Mr. J. O. Weldon, built the very first 500kW transmitter using the revolutionary, high-powered Doherty Amplifier, which established him and Continental as a pioneer in the RF industry. The Doherty Amplifier technique made these transmitters more powerful and affordable. Today, Doherty Amplifiers are still used for many applications, including 4G and 5G.