Before revision: The first transistor Hi-Fi system was developed by engineers at GE and demonstrated at the University of Philadelphia in 1955.Sorab K. Ghandhi; Vernon Mathis; Edward Keonjian; Richard Shea; et al.
After revision: The first transistor hi-fi system was developed by engineers at GE and demonstrated at the University of Philadelphia in 1955.Sorab K. Ghandhi; Vernon Mathis; Edward Keonjian; Richard Shea; et al.