Zide, Larry (December 1976). "The Making of the Ampex ATR-100"(PDF). db - The Sound Engineering Magazine. Sagamore Publishing. pp. 32–35. Retrieved November 16, 2018 – via American Radio History. or via ATR Services
Zide, Larry (February 1977). "The Making of the Ampex ATR-100, Part 2"(PDF). db - The Sound Engineering Magazine. Sagamore Publishing. pp. 36–38. Retrieved November 16, 2018 – via American Radio History.
atrservice.com
Zide, Larry (December 1976). "The Making of the Ampex ATR-100"(PDF). db - The Sound Engineering Magazine. Sagamore Publishing. pp. 32–35. Retrieved November 16, 2018 – via American Radio History. or via ATR Services
