{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"The A B C of Vacuum Tubes in Radio Reception; An Elementary and Practical Book on the Theory and Operation of Vacuum Tubes as Detectors and Amplifiers (Classic Reprint)","author_name":"Elmer Hugh Lewis","thumbnail_url":"https://www.ebooknetworking.net/books/133/054/big1330542681.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1330542681.html\">The A B C of Vacuum Tubes in Radio Reception; An Elementary and Practical Book on the Theory and Operation of Vacuum Tubes as Detectors and Amplifiers (Classic Reprint)</a>","width":400,"height":300}