J & J Electronics

Hammond Manufacturing was established in 1917 in Guelph, Ontario, Canada. In the early years, the Company manufactured radios, power amplifiers and battery eliminators. During the late 1920's Hammond focused its efforts on the manufacturing of transformers for the broadcast and communications industries. The explosive demand for electrical products of all sizes during the 1950's and 1960's created many opportunities for new products and diversification. During these years Hammond became a leading provider of transformers and enclosures for the electrical and electronic industries.