390с

1922г

THE

RADIO AMATEUR'S HAND BOOK

A Complete, Authentic and Informative Work on Wireless Telegraphy and Telephony

BY

A. FREDERICK COLLINS

Inventor of the Wireless Telephone 1899; Historian of Wireless 1901-1910; Author of "Wireless Telegraphy" 1905

THIRD EDITION

revised by

MAURICE L. MUHLEMANN Technical Editor of Radio News

NEW york THOMAS Y. CROWELL COMPANY

publishers