A Simple Radio-Phone Receiver
Science and Invention April 1922
the package is the best part of this design, very compact, not a box
an example of using the materials on hand to make a very unique and easy to use radio
Even if you don’t want to build this design for a crystal receiver set, there are lots of ideas in this article and you might find one component you want to use in your own crystal receiver set
A Simple Radio-Phone Receiver – Science and Invention April 1922
