{"product_id":"radio-simplified-what-it-is-how-to-build-and-operate-the-apparatus","title":"Radio Simplified: What It Is - How to Build and Operate the Apparatus","description":"271 pp. Photographic frontispiece, 95 illustrations in text. Includes International Morse Code and Conventional Signals. CONTENTS: What Is Radio'; The Antenna or Aerial; Erecting the Aerial; Essentials of a Receiving Station; Vacuum Tubes; Current Supply for Vacuum Tubes; The Regenerative Receiver; Amplifiers, Loud Speakers, and Loop Aerials; The Spark Sending Set; The Vacuum Tube Transmitter; Learning the Code; Government Regulations for Amateurs; Index.","brand":"The John C. Winston Company","offers":[{"title":"Default Title","offer_id":41980248916038,"sku":"2345312","price":25.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1232\/9510\/files\/2345312_4aaf044a-de55-4104-9da9-130f2ff63357.jpg?v=1721677986","url":"https:\/\/ym-demo.myshopify.com\/products\/radio-simplified-what-it-is-how-to-build-and-operate-the-apparatus","provider":"Yesterday's Muse","version":"1.0","type":"link"}