{gbW: "875", gbH: "555", mW: "500", mH: "317.0", kb: "56 KB", notes: "Pour le modèle Two Step Amplifier 215, General Radio Company; Cambridge (MA)", title: "General Radio Two Step Amplifier 215 provenant de Walter Barteczek (1)", ite: "1"}
{gbW: "640", gbH: "480", mW: "500", mH: "375", kb: "26 KB", notes: "Pour le modèle Two Step Amplifier 215, General Radio Company; Cambridge (MA):[br]Ebay Auction", title: "General Radio Two Step Amplifier 215 téléchargé par Joseph Woychowski (2)", ite: "2"}
{gbW: "640", gbH: "480", mW: "500", mH: "375", kb: "38 KB", notes: "Pour le modèle Two Step Amplifier 215, General Radio Company; Cambridge (MA):[br]Ebay auction", title: "General Radio Two Step Amplifier 215 téléchargé par Joseph Woychowski (2)", ite: "2"}
{gbW: "640", gbH: "480", mW: "500", mH: "375", kb: "26 KB", notes: "Pour le modèle Two Step Amplifier 215, General Radio Company; Cambridge (MA):[br]Ebay auction", title: "General Radio Two Step Amplifier 215 téléchargé par Joseph Woychowski (2)", ite: "2"}
{gbW: "640", gbH: "480", mW: "500", mH: "375", kb: "30 KB", notes: "Pour le modèle Two Step Amplifier 215, General Radio Company; Cambridge (MA):[br]Ebay auction", title: "General Radio Two Step Amplifier 215 téléchargé par Joseph Woychowski (2)", ite: "2"}
{gbW: "933", gbH: "852", mW: "410.0", mH: "375", kb: "114 KB", notes: "Pour le modèle Two Step Amplifier 215, General Radio Company; Cambridge (MA):[br]September 1920 The Wireless Age advertisement for the General Radio Type 215 2-Stage Audio Amplifier", title: "General Radio Two Step Amplifier 215 téléchargé par Alan Larsen (2)", ite: "2"}
{gbW: "1400", gbH: "2003", mW: "262.0", mH: "375", kb: "210 KB", notes: "Pour le modèle Two Step Amplifier 215, General Radio Company; Cambridge (MA):[br]Quelle: Atlantic Radio Co. Bulletin 14 (1919)", title: "General Radio Two Step Amplifier 215 téléchargé par Nikolaus Löwe (2)", ite: "2"}