Modern Sound Projection - Radio Craft Feb 1930
I picked up a stack of 1930's radio magazines not long ago. Most of it is of course radio related but there are some good tube ads and theater articles. Here is an oldie on theater sound projection.
This post originated at retro vintage modern hi-fi http://itishifi.blogspot.com
This post originated at retro vintage modern hi-fi http://itishifi.blogspot.com