Courtesy of Jon from RadioWest.ca
In 1925, Ted Rogers Sr. manufactured the world's first commercial AC (alternating current) tube at the newly established factory of Standard Radio Manufacturing Corporation Limited on Chestnut Street in Toronto. A few days later, Rogers displayed a Rogers Batteryless radio receiver using that very tube, at the Canadian National Exhibition (CNE) in Toronto. In 18 months, he had world's first AC radio station, as CFRB (Canada's First Rogers Batteryless) signed on February 10, 1927. CFRB's transmitter ran directly off utility-provided AC power; other stations ran on low-voltage batteries and DC (Direct Current) generators mechanically coupled to electric AC motors.

In 1931, Ted Sr. (pictured below) was granted Canada's first television license, and foresaw the coming of colour television. He later started Canada's first FM station, simulcasting CFRB-AM on the original 42 MHz FM band with 50 watts. And he did significant work on Radar before his death just before World War II.