{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The how and why of radio apparatus; a treatise on the principles underlying the operation of wireless transmitting and receiving instruments, with an ... \"Calculation and measurement of inductance,\"","author_name":"Harry Winfield Secor","thumbnail_url":"https://www.ebooknetworking.net/books/113/099/big1130995399.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1130995399.html\">The how and why of radio apparatus; a treatise on the principles underlying the operation of wireless transmitting and receiving instruments, with an ... &quot;Calculation and measurement of inductance,&quot;</a>","width":400,"height":300}