{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The gain and the noise figure of the helical traveling wave tube","author_name":"William Sollfrey","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B00Z68PS94.html\">The gain and the noise figure of the helical traveling wave tube</a>","width":400,"height":300}