{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Radio valve data: Characteristics of 3,000 valves,transistors, rectifiers and cathode-ray tubes","author_name":"","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0000CK23S.html\">Radio valve data: Characteristics of 3,000 valves,transistors, rectifiers and cathode-ray tubes</a>","width":400,"height":300}