In the 1920's radio was new and this little book quickly became a guide to the excitement of what was then new and thrilling. Relive those early days of radio by looking over some of the more favorite receiving circuits of that period. Follow the path from crystal radios to a 5-tube nutrodyne.
In the 1920's radio was new and this little book quickly became a guide to the excitement of what was then new and thrilling. Relive those early days ...
