{"product_id":"tube-substitution-handbook-book-william-smith-9780790611488","title":"Tube Substitution Handbook","description":"A complete handbook for replacements for vacuum tubes and picture tubes.  This is the most accurate, up-to-date guide available to determine direct substitutes for receiving tubes and picture tubes.","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":50366677647633,"sku":"CIN0790611481G","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0790611481.jpg?v=1751329359","url":"https:\/\/www.worldofbooks.com\/en-gb\/products\/tube-substitution-handbook-book-william-smith-9780790611488","provider":"World of Books ","version":"1.0","type":"link"}