Today I think I hit the mother load in terms of old radio documentation. The site is called www.americanradiohistory.com, and they have all sorts of early radio magazines in PDF form posted. Everything from "Electrical Experimenter" to "Radio Craft" and many others. If you are an antique radio junkie like myself, then check it out.
Charles Baetsen holds a Bachelor and a Master's degree in Engineering Physics from McMaster University in Hamilton, Canada.