I found a book at the library from the author W.E Butterworth with the title of Hi-Fi.
It was a good overview of the "Music Reproduction" industry until the mid 1970's. The thing I came away with was how competitive the industry was right from the beginning at the turn of the century and how it stayed that way.
It did give me some incentive to listen to some vinyl and see what all the fuss is about. From the authors point of view tape seemed like a far superior medium.