The Radio Amateur's Hand Book :
Collins, A. Frederick 1869-
The Radio Amateur's Hand Book : A Complete, Authentic and Informative Work on Wireless Telegraphy and Telephony [electronic resource] / A. Frederick Collins - Project Gutenberg, 2004 - Project Gutenberg 6934 .
Text only, see #6935 for HTML with images (this book is very difficult to read without the images!)
Public domain in the USA.
Electronic text
Telegraph, Wireless Radio
TK
The Radio Amateur's Hand Book : A Complete, Authentic and Informative Work on Wireless Telegraphy and Telephony [electronic resource] / A. Frederick Collins - Project Gutenberg, 2004 - Project Gutenberg 6934 .
Text only, see #6935 for HTML with images (this book is very difficult to read without the images!)
Public domain in the USA.
Electronic text
Telegraph, Wireless Radio
TK