{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Instruments for Electrical Measurements at Communication Frequencies. Catalog F. June, 1930.","author_name":"General Radio Company.","thumbnail_url":"https://www.ebooknetworking.net/books/B00/30F/bigB0030FF2M8.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0030FF2M8.html\">Instruments for Electrical Measurements at Communication Frequencies. Catalog F. June, 1930.</a>","width":400,"height":300}