Rogers Vacuum Tube Company (formally named Radio Manufacturing Corporation Limited) was founded as the Standard Radio Manufacturing Corporation in 1925 by Edward Rogers (1900–1939) to sell Rogers "Batteryless" radios using vacuum tube technology.
While visiting the United States, he witnessed an experimental tube operating using AC current demonstrated by Frederick S. McCullough.
The demonstration proved that an AC operated vacuum tube was feasible, but it exhibited too much hum, due to the filament cycling at the generator frequency.
The Standard Radio Manufacturing Corporation was formed in 1925 to mass-produce this new AC operated vacuum tube.
During this period, Rogers was in full production of AC operated tetrode tubes similar to the RCA UY-224.