1946 To 1970
1946– Emmanuel “Bert” Berlant (1911-1985) started Berlant Associates Inc, producing hi-fidelity audio equipment
1948– Berlant developed the magnetic transducer head for recording audio on magnetic tape. Berlant’s professional grade products were used by recording studios and radio stations
1949– Berlant started manufacture of dictating machines using the new magnetic tape recording technology
1950– Berlant introduces three Concertone models,the basic 1401, without a frame, the 501 a portable suitcase model and the 702, a professional grade recorder with console cabinet
Early 1950’s– According to a January 1953 article in Magnecord Inc, the company has been working on binaural (stereo) technology for two years. Late in 1952 they promoted a number of binaural broadcasts, to spread the word. They stated… Magnecord does not lay claim to invention of binaural sound. It points only to the record which shows Magnecord engineers designed and developed the first commercially practical method of recording sound binaurally
1954– Berlant Concertone 20/20 Series 30 introduced. This was an early vertical reel to reel model marketed to radio stations for its dependability, performance and simplicity.
1962– Concertone 505 4RK “Reverse-O-Matic” model that features four head and four track recording, allowing the user to record in both directions, making recording easier and cheaper.
1963– American Concertone licensed the rights to manufacture the Model 505 to TEAC (Tokyo Electro Acoustic Company)
1970’s– The company stopped producing audio equipment