Quoted from- http://www.philcoradio.com/history.htm
"Philco began a downward spiral in the fifties, culminating in being purchased by Ford Motor Company in 1961.
The Philco name survived for a time as Philco-Ford, but Ford sold Philco to GTE-Sylvania in 1974. "

White Consoldiated purchased numerous other major appliance competitors during the 1970s, including Philco, the Ford appliance division in 1977 and Frigidaire from General Motors in 1979.